CN114102978A - Colorful shell and preparation method thereof - Google Patents
Colorful shell and preparation method thereof Download PDFInfo
- Publication number
- CN114102978A CN114102978A CN202111436787.2A CN202111436787A CN114102978A CN 114102978 A CN114102978 A CN 114102978A CN 202111436787 A CN202111436787 A CN 202111436787A CN 114102978 A CN114102978 A CN 114102978A
- Authority
- CN
- China
- Prior art keywords
- injection mold
- colorful
- cavity
- adhesive layer
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 124
- 239000007924 injection Substances 0.000 claims abstract description 124
- 238000001746 injection moulding Methods 0.000 claims abstract description 87
- 239000012778 molding material Substances 0.000 claims abstract description 67
- 238000000465 moulding Methods 0.000 claims abstract description 49
- 230000000740 bleeding effect Effects 0.000 claims abstract description 36
- 239000004033 plastic Substances 0.000 claims abstract description 35
- 229920003023 plastic Polymers 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000007493 shaping process Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000012790 adhesive layer Substances 0.000 claims description 65
- 239000002245 particle Substances 0.000 claims description 48
- 239000010410 layer Substances 0.000 claims description 46
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 239000011248 coating agent Substances 0.000 claims description 24
- 238000000576 coating method Methods 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 9
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 9
- 239000004417 polycarbonate Substances 0.000 claims description 8
- 229920000515 polycarbonate Polymers 0.000 claims description 8
- 230000004313 glare Effects 0.000 claims description 6
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 239000004413 injection moulding compound Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract 2
- 239000011148 porous material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 8
- 229920002050 silicone resin Polymers 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000013464 silicone adhesive Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14688—Coating articles provided with a decoration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the field of shell processing, and discloses a colorful shell and a preparation method thereof. The preparation process comprises the following steps: providing a colorful film, placing the colorful film into a cavity of an injection mold, and introducing filling gas into the cavity of the injection mold so that the cavity of the injection mold is filled with the filling gas; carry out heating operation to injection mold, pour into the injection molding material into to injection mold's die cavity through the hole of moulding plastics to through the operation of bleeding to injection mold's die cavity of the pore pair of bleeding, pressurize shaping, the cooling, the die sinking obtains dazzling various casing, the hole of moulding plastics sets up in injection mold's first end, hole and die cavity intercommunication of moulding plastics, injection mold's second end is provided with the extraction hole, injection mold's first end and second end set up dorsad, extraction hole and die cavity intercommunication. The colorful film bonding and bonding method has the advantages that the shell can be well attached to and combined with the colorful film, deformation of the colorful film is prevented, the colorful film is prevented from being deformed, folds or stripes are prevented from being generated, the prepared colorful film shell is flat and smooth in appearance, and the quality is good.
Description
Technical Field
The invention relates to the technical field of shell processing, in particular to a colorful shell and a preparation method thereof.
Background
The colorful film is a color-changing film, different colors can be displayed under different angles and different light rays, the colorful film is attractive, visual enjoyment is brought to people, the colorful film can be used for the shell, the shell surface has different colors, the colorful effect is achieved, the attractive effect is achieved, the better appearance requirements of consumers are met, and the shell quality is improved.
However, the colorful film is soft in texture and thin in thickness, and is easy to deform in the process of processing the colorful film to the shell, so that the colorful film may have a deformation phenomenon of folds or stripes during processing, and the appearance and quality of the colorful shell after processing and forming are affected, therefore, the processing of the colorful shell needs to be improved, and the colorful shell with a smooth surface is prepared.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a colorful shell and a preparation method thereof.
The purpose of the invention is realized by the following technical scheme:
a method for preparing a colorful shell comprises the following steps:
providing a colorful film, placing the colorful film into a cavity of an injection mold, and introducing filling gas into the cavity of the injection mold so that the cavity of the injection mold is filled with the filling gas;
heating the injection mold to 50-80 ℃, and keeping the temperature for 1-2 min;
inject the injection molding material into injection mold's die cavity through the hole of moulding plastics to it is right through the hole of bleeding the operation of bleeding injection mold's die cavity, pressurize shaping, the cooling, the die sinking obtains dazzling various casing, the hole of moulding plastics set up in injection mold's first end, the hole of moulding plastics with the die cavity intercommunication, injection mold's second end is provided with the aspirating hole, injection mold's first end and second end set up dorsad, the aspirating hole with the die cavity intercommunication.
In one embodiment, the injection molding compound is at least one of polymethyl methacrylate and polycarbonate.
In one embodiment, before the operation of placing the color film into the cavity of the injection mold, a coating operation is further performed on the color film, so that the color film forms an adhesive layer.
In one embodiment, after the operation of coating the color film to form an adhesive layer on the color film, injection molding particles are further sprayed on the surface of the adhesive layer to form an injection molding particle layer.
In one embodiment, after the operation of spraying the injection molding material particles on the surface of the adhesive layer to form a layer of injection molding material particles, the surface of the layer of injection molding material particles is subjected to a secondary coating operation to form a silicone adhesive layer on the surface of the layer of injection molding material particles.
In one embodiment, in the pressure-maintaining molding operation, the pressure of the pressure-maintaining molding is controlled to be 65MPa to 70MPa, and the time of the pressure-maintaining molding is controlled to be 45s to 55 s.
In one embodiment, after the first coating operation is performed on the color filter film to form an adhesive layer on the color filter film, the adhesive layer is further semi-cured to semi-cure the adhesive layer.
In one embodiment, the adhesive layer is a thermosetting adhesive layer.
In one embodiment, the fill gas is nitrogen.
The colorful shell is characterized by being prepared by any one of the preparation methods.
Compared with the prior art, the invention has at least the following advantages:
the colorful film is placed into the cavity of the injection mold, filling gas is introduced, the colorful film can be flatly paved in the cavity and completely attached to the side wall of the cavity, the injection mold is heated to play a role of preheating, so that the air pressure in the cavity is increased, the filling gas can be more uniformly filled in the cavity, the colorful film can be better filled and supported, the temperature is heated to 50-80 ℃, the temperature is kept for 1-2 min, the cavity can be in a constant-temperature and constant-pressure environment, injection molding materials are injected through injection molding holes arranged at the first end of the injection mold, and meanwhile, the injection molding holes arranged at the second end of the injection mold are used for carrying out operation, so that the colorful film can play a role in air exhaust, and can play a good role in drainage, so that the injection molding materials can be quickly and uniformly injected into the cavity to be quickly and uniformly pumped out, and can be well attached to the colorful film, the deformation phenomenon of the colorful film is prevented, the colorful film is prevented from being folded or striped, and the prepared colorful film shell is smooth and flat in appearance and good in quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flow chart illustrating steps in a method of making a glare shell in accordance with one embodiment of the present invention; .
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment, referring to fig. 1, a method for manufacturing a colorful shell includes the following steps:
s110, providing a colorful film, placing the colorful film into a cavity of an injection mold, and introducing filling gas into the cavity of the injection mold, so that the cavity of the injection mold is filled with the filling gas.
It should be noted that the colorful film is placed in the cavity of the injection mold, and the colorful film is soft and light and can be bent into any shape. It can be understood that nitrogen is the main component of air, easily obtain, filling gas for commonly used, and nitrogen's chemical property is inactive, the nature is stable, difficult reacting with other matter takes place, filling gas can play the filling supporting role, can produce certain pressure to dazzling various membrane, can be so that dazzling various membrane can the tiling in the die cavity, and laminate completely with the lateral wall of die cavity, thereby when being favorable to follow-up injection moulding, form a level and smooth various membrane of dazzling in the surface of casing, thereby the various membrane of dazzling is formed to the casing surface that obtains after injection moulding, obtain dazzling various casing.
S120, heating the injection mold to 50-80 ℃, and preserving heat for 1-2 min.
It should be noted that, after the colorful film is placed in the cavity of the injection mold, the injection mold is heated, on one hand, a preheating effect can be achieved, and on the other hand, the air pressure in the cavity can be increased, so that the filling gas can be more uniformly filled in the cavity, a larger pressure can be generated on the colorful film, and a better filling and supporting effect on the colorful film can be achieved.
S130, through the hole of moulding plastics to injection mold ' S die cavity injects the injection molding material, and right through the hole of bleeding the operation of bleeding injection mold ' S die cavity, pressurize shaping, the cooling, the die sinking obtains dazzling various casing, the hole of moulding plastics set up in injection mold ' S first end, the hole of moulding plastics with the die cavity intercommunication, injection mold ' S second end is provided with the bleeding hole, injection mold ' S first end and second end set up dorsad, the bleeding hole with the die cavity intercommunication.
It should be noted that, after the injection mold is preheated, because the cavity of the injection mold is in a stable state of constant temperature and pressure, and then the injection molding material in a molten state is injected through the injection hole arranged at the first end of the injection mold, and simultaneously, the air suction operation is performed through the air suction hole arranged at the second end of the injection mold, in this embodiment, the first end and the second end of the injection mold are arranged in a back direction, which not only can play a role of exhausting air, but also can play a good role of draining, so that the injection molding material can be rapidly and directionally injected into the cavity from the first end to the second end of the injection mold, so that the injection molding material can be rapidly and uniformly injected into the cavity, and meanwhile, because a certain time is required for the injection molding material to completely fill the cavity, when the injection molding material is full of the cavity, the filling gas can continue to play a role of supporting, and can continue to fill and support the color film of the part not filled with the injection molding material, deformation of the colorful film is prevented, so that the colorful film is prevented from being folded or striped, the shell can be well attached to and combined with the colorful film, the prepared colorful film shell is level and smooth in appearance and good in quality.
In one embodiment, the injection molding compound is at least one of polymethyl methacrylate and polycarbonate. It can be understood that polymethyl methacrylate and polycarbonate are commonly used materials for preparing transparent shells, wherein polymethyl methacrylate is commonly called as acrylic or organic glass, is a low-cost material and is easy to obtain, polymethyl methacrylate has the advantages of high transparency, easy processing and forming and the like although the polymethyl methacrylate is low in cost, and can be used as a substitute material of glass, meanwhile, a polymethyl methacrylate product has the advantages of high overall structural strength, light dead weight, high light transmittance, high safety performance and the like, a polymethyl methacrylate is used as an injection molding material, a colorful shell finished product with high mechanical strength and good transparency can be prepared, the quality of the colorful shell finished product can be guaranteed, in addition, polycarbonate is a high polymer containing carbonate groups in molecular chains, and polycarbonate is a colorless transparent material and has heat resistance, light transmittance, high light transmittance and high safety performance, The polycarbonate material has the advantages of good impact resistance and flame retardance, good mechanical properties at ordinary use temperature, good impact resistance, high refractive index, good processability, low forming shrinkage and good dimensional stability, and is beneficial to ensuring the structural stability of the prepared colorful shell, thereby ensuring the quality of the finished product of the prepared colorful shell.
In one embodiment, before the operation of placing the color film into the cavity of the injection mold, a coating operation is further performed on the color film, so that the color film forms an adhesive layer. It can be understood that, before the colorful film is placed in the cavity of the injection mold, a layer of adhesive is coated on one surface of the colorful film, so as to form an adhesive layer, on one hand, the adhesive layer can play a role in bonding when being favorable for subsequent injection molding, so that the shell and the colorful film are better bonded together, the structural stability of the colorful shell obtained through preparation is favorably improved, on the other hand, the thickness and the weight of the colorful film can be increased through the adhesive layer, the colorful film can be better attached to the side wall of the cavity of the injection mold, the deformation of the colorful film can be further prevented, the deformation of the colorful film can be avoided in the subsequent injection molding process, the smooth and flat colorful shell finished product can be further ensured to be prepared, and the quality of the colorful shell finished product can be ensured.
In one embodiment, after the operation of coating the color film to form an adhesive layer on the color film, injection molding particles are further sprayed on the surface of the adhesive layer to form an injection molding particle layer. It can be understood that, the injection molding material particles are sprayed on the surface of the adhesive layer away from the colorful film, an even injection molding material particle layer can be formed on the surface of the adhesive layer away from the colorful film, the injection molding material particles are uniformly distributed on the surface of the adhesive layer away from the colorful film, the thickness and the weight of the colorful film can be further increased through the injection molding material particles, the colorful film can be better attached to the side wall of the cavity when being accommodated in the cavity of the injection mold, the injection molding material particles have larger weight, the deformation phenomena of contraction, rolling and the like of the colorful film at high temperature can be prevented, the phenomenon of wrinkles or stripes of the colorful film can be further prevented, the surface of the prepared colorful shell finished product is smooth and flat, and the quality of the finished product is good.
In one embodiment, after the operation of spraying the injection molding material particles on the surface of the adhesive layer to form a layer of injection molding material particles, the surface of the layer of injection molding material particles is subjected to a secondary coating operation to form a silicone adhesive layer on the surface of the layer of injection molding material particles. It can be understood that, by coating the silicone resin on the surface of the injection molding material particle layer far from the adhesive layer, a silicone resin adhesive layer is formed on the surface of the injection molding material particle layer far from the adhesive layer, the silicone resin is a thermosetting polysiloxane polymer with a highly cross-linked structure, has the dual characteristics of organic resin and inorganic material, has unique physical and chemical properties, can be used as an adhesive, has good adhesive effect, good fluidity and smoothness, can be well filled among injection molding particles, has good adhesive effect, can enable the injection molding material and the injection molding material particle layer to be better adhered together when injecting the injection molding material subsequently, is beneficial to ensuring the structural stability of the prepared colorful shell, can play a smoothing role by the silicone resin adhesive layer, and is beneficial to ensuring that the molten injection molding material better flows in a cavity of an injection mold, thereby can carry out the hot melt to the injection molding material grained layer better for the better hot melt formation injection molding layer of injection molding material grained layer faster, thereby guarantee the normal clear of the operation of moulding plastics, and the preparation obtains dazzle bonding firmly between each structural layer of various casing, structural stability is good, and the finished product quality is high.
In one embodiment, in the pressure-maintaining molding operation, the pressure of the pressure-maintaining molding is controlled to be 65MPa to 70MPa, and the time of the pressure-maintaining molding is controlled to be 45s to 55 s. It can be understood that, because the dazzling color shell comprises the dazzling color film, the adhesive layer, the injection molding material particle layer, the silicone resin layer and the injection molding material main body layer, the dazzling color film, the adhesive layer, the injection molding material particle layer, the silicone resin layer and the injection molding material main body layer can be laminated together better only by higher pressure maintaining molding pressure and time to form the dazzling color shell with stable structure, when the pressure maintaining molding pressure is less than 65MPa, the pressure maintaining molding pressure is too low to exhaust gas well, and the materials cannot be laminated together well to influence the finished product quality of the dazzling color shell, when the pressure maintaining molding pressure is more than 70MPa, the pressure maintaining molding pressure is too high, which not only needs more input energy resources, but also may damage the dazzling color film, so that the dazzling color film has cracks and the like, and the finished product quality of the dazzling color shell is reduced, therefore, under comprehensive consideration, the pressure of the pressure maintaining molding is controlled to be 65 MPa-70 MPa, the pressure maintaining and forming time is preferably 45-55 s, so that the pressure maintaining and forming pressure and the pressure maintaining and forming time are moderate, the surface of the prepared colorful shell finished product is smooth and flat, and the quality is best.
In one embodiment, after the first coating operation is performed on the color filter film to form an adhesive layer on the color filter film, the adhesive layer is further semi-cured to semi-cure the adhesive layer. It can be understood that the adhesive layer may be semi-cured by performing a semi-curing operation on the adhesive layer, and specifically, in this embodiment, the adhesive layer is a thermosetting adhesive layer. The adhesive layer is in a semi-cured state, the adhesive layer can be enabled to keep a certain shape, and simultaneously, the adhesive layer is not cured completely, the adhesive layer has good toughness, the shape required can be bent, namely, the adhesive layer is semi-cured, not only can a colorful film be enabled to be in a certain shape after being combined with the adhesive layer, deformation is not prone to occurring, meanwhile, certain toughness can be kept, the colorful film can be conveniently attached to a cavity of an injection mold, the adhesive layer is in a semi-cured state and has certain viscosity, adhesion to an injection molding material particle layer can be guaranteed, normal proceeding of follow-up operation is guaranteed, mechanical strength of the colorful film is further improved, deformation is avoided, quality of a colorful shell obtained through follow-up preparation is further improved, and the colorful shell with a more smooth and attractive appearance is obtained.
In an embodiment, the colorful shell is prepared by the method for preparing the colorful shell according to any one of the above embodiments. The colorful shell is prepared by the preparation method of any one of the embodiments, and the prepared colorful shell is flat and smooth in appearance and good in quality.
Compared with the prior art, the invention has at least the following advantages:
the colorful film is placed into the cavity of the injection mold, filling gas is introduced, the colorful film can be flatly paved in the cavity and completely attached to the side wall of the cavity, the injection mold is heated to play a role of preheating, so that the air pressure in the cavity is increased, the filling gas can be more uniformly filled in the cavity, the colorful film can be better filled and supported, the temperature is heated to 50-80 ℃, the temperature is kept for 1-2 min, the cavity can be in a constant-temperature and constant-pressure environment, injection molding materials are injected through injection molding holes arranged at the first end of the injection mold, and meanwhile, the injection molding holes arranged at the second end of the injection mold are used for carrying out operation, so that the colorful film can play a role in air exhaust, and can play a good role in drainage, so that the injection molding materials can be quickly and uniformly injected into the cavity to be quickly and uniformly pumped out, and can be well attached to the colorful film, the deformation phenomenon of the colorful film is prevented, the colorful film is prevented from being folded or striped, and the prepared colorful film shell is smooth and flat in appearance and good in quality.
The following is a section of a specific example of a method for producing a glare shell
Example 1
Providing a colorful film, performing primary coating operation on the colorful film to enable the colorful film to form an adhesive layer, spraying injection molding material particles on the surface of the adhesive layer to enable an injection molding material particle layer to be formed, performing secondary coating operation on the surface of the injection molding material particle layer to enable a silicon resin adhesive layer to be formed on the surface of the injection molding material particle layer, placing the colorful film into a cavity of an injection mold, and introducing nitrogen into the cavity of the injection mold to enable the nitrogen to fill the cavity of the injection mold;
heating the injection mold to 50 ℃, and keeping the temperature for 1 min;
inject the injection molding material into injection mold's die cavity through the hole of moulding plastics to it is right through the hole of bleeding the operation of bleeding injection mold's die cavity, the pressurize shaping, the fashioned pressure of control pressurize is 65MPa, and the fashioned time of pressurize is 45s, and the cooling, the die sinking obtain embodiment 1 dazzle various casing, the hole of moulding plastics set up in injection mold's first end, the hole of moulding plastics with the die cavity intercommunication, injection mold's second end is provided with the hole of bleeding, injection mold's first end and second end set up dorsad, the hole of bleeding with the die cavity intercommunication.
Example 2
Providing a colorful film, performing primary coating operation on the colorful film to enable the colorful film to form an adhesive layer, spraying injection molding material particles on the surface of the adhesive layer to enable an injection molding material particle layer to be formed, performing secondary coating operation on the surface of the injection molding material particle layer to enable a silicon resin adhesive layer to be formed on the surface of the injection molding material particle layer, placing the colorful film into a cavity of an injection mold, and introducing nitrogen into the cavity of the injection mold to enable the nitrogen to fill the cavity of the injection mold;
heating the injection mold to 65 ℃, and keeping the temperature for 1.5 min;
inject the injection molding material into injection mold's die cavity through the hole of moulding plastics to it is right through the hole of bleeding the operation of bleeding injection mold's die cavity, the pressurize shaping, the fashioned pressure of control pressurize is 67.5MPa, and the fashioned time of pressurize is 50s, and the cooling, the die sinking obtain embodiment 2 dazzle various casing, the hole of moulding plastics set up in injection mold's first end, the hole of moulding plastics with the die cavity intercommunication, injection mold's second end is provided with the hole of bleeding, injection mold's first end and second end set up dorsad, the hole of bleeding with the die cavity intercommunication.
Example 3
Providing a colorful film, performing primary coating operation on the colorful film to enable the colorful film to form an adhesive layer, spraying injection molding material particles on the surface of the adhesive layer to enable an injection molding material particle layer to be formed, performing secondary coating operation on the surface of the injection molding material particle layer to enable a silicon resin adhesive layer to be formed on the surface of the injection molding material particle layer, placing the colorful film into a cavity of an injection mold, and introducing nitrogen into the cavity of the injection mold to enable the nitrogen to fill the cavity of the injection mold;
heating the injection mold to 80 ℃, and keeping the temperature for 2 min;
inject the injection molding material into injection mold's die cavity through the hole of moulding plastics to it is right through the hole of bleeding the operation of bleeding injection mold's die cavity, the pressurize shaping, control pressurize fashioned pressure is 70MPa, and the fashioned time of pressurize is 55s, and the cooling, the die sinking obtains embodiment 3 and dazzles various casing, the hole of moulding plastics set up in injection mold's first end, the hole of moulding plastics with the die cavity intercommunication, injection mold's second end is provided with the hole of bleeding, injection mold's first end and second end set up dorsad, the hole of bleeding with the die cavity intercommunication.
Example 4
Providing a colorful film, performing primary coating operation on the colorful film to enable the colorful film to form an adhesive layer, performing semi-curing operation on the adhesive layer to enable the adhesive layer to be semi-cured, spraying injection molding material particles on the surface of the adhesive layer to enable an injection molding material particle layer to be formed, performing secondary coating operation on the surface of the injection molding material particle layer to enable a silicon resin adhesive layer to be formed on the surface of the injection molding material particle layer, putting the colorful film into a cavity of an injection mold, and introducing nitrogen into the cavity of the injection mold to enable the nitrogen to fill the cavity of the injection mold;
heating the injection mold to 80 ℃, and keeping the temperature for 2 min;
inject the injection molding material into injection mold's die cavity through the hole of moulding plastics to it is right through the hole of bleeding the operation of bleeding injection mold's die cavity, the pressurize shaping, control pressurize fashioned pressure is 70MPa, and the fashioned time of pressurize is 55s, and the cooling, the die sinking obtains embodiment 4 and dazzles various casing, the hole of moulding plastics set up in injection mold's first end, the hole of moulding plastics with the die cavity intercommunication, injection mold's second end is provided with the hole of bleeding, injection mold's first end and second end set up dorsad, the hole of bleeding with the die cavity intercommunication.
Comparative example 1
Providing a colorful film, and putting the colorful film into a cavity of an injection mold;
heating the injection mold to 80 ℃, and keeping the temperature for 2 min;
inject the injection molding material into injection mold's die cavity through the hole of moulding plastics to it is right through the hole of bleeding the operation of bleeding injection mold's die cavity, the pressurize shaping, control pressurize fashioned pressure is 70MPa, and the fashioned time of pressurize is 55s, and the cooling, the die sinking obtains dazzling various casing of comparative example 1, the hole of moulding plastics set up in injection mold's first end, the hole of moulding plastics with the die cavity intercommunication, injection mold's second end is provided with the hole of bleeding, injection mold's first end and second end set up dorsad, the hole of bleeding with the die cavity intercommunication.
Comparative example 2
Providing a colorful film, performing one-time coating operation on the colorful film to enable the colorful film to form an adhesive layer, putting the colorful film into a cavity of an injection mold, and introducing nitrogen into the cavity of the injection mold to enable the cavity of the injection mold to be filled with the nitrogen;
heating the injection mold to 80 ℃, and keeping the temperature for 2 min;
inject the injection molding material into injection mold's die cavity through the hole of moulding plastics to it is right through the hole of bleeding the operation of bleeding injection mold's die cavity, the pressurize shaping, control pressurize fashioned pressure is 70MPa, and the fashioned time of pressurize is 55s, and the cooling, the die sinking obtains dazzling various casing of comparative example 2, the hole of moulding plastics set up in injection mold's first end, the hole of moulding plastics with the die cavity intercommunication, injection mold's second end is provided with the hole of bleeding, injection mold's first end and second end set up dorsad, the hole of bleeding with the die cavity intercommunication.
Comparative example 3
Providing a colorful film, performing one-time coating operation on the colorful film to enable the colorful film to form an adhesive layer, spraying injection molding material particles on the surface of the adhesive layer to enable an injection molding material particle layer to be formed, placing the colorful film into a cavity of an injection mold, and introducing nitrogen into the cavity of the injection mold to enable the nitrogen to fill the cavity of the injection mold;
heating the injection mold to 80 ℃, and keeping the temperature for 2 min;
inject the injection molding material into injection mold's die cavity through the hole of moulding plastics to it is right through the hole of bleeding the operation of bleeding injection mold's die cavity, the pressurize shaping, control pressurize fashioned pressure is 70MPa, and the fashioned time of pressurize is 55s, and the cooling, the die sinking obtains comparative example 3 and dazzles various casing, the hole of moulding plastics set up in injection mold's first end, the hole of moulding plastics with the die cavity intercommunication, injection mold's second end is provided with the aspirating hole, injection mold's first end and second end set up dorsad, the aspirating hole with the die cavity intercommunication.
In the above examples, polycarbonate was used as the injection molding material, and the tests were carried out on examples 1, 2, 3, 4, 1, 2 and 3, and the test results are shown in Table 1.
TABLE 1
As can be seen from the above table, compared with the colorful shell of comparative example 1, the colorful shells prepared in embodiments 1 to 4 all have excellent appearances, the shells have smooth and flat appearances and high quality, and the colorful films are firmly combined with the shells, and the structural stability is good, compared with embodiment 3, comparative examples 2 and 3, and a silicone resin layer is obtained by spraying plastic injection layers and secondary coating, so that the appearances of the colorful shells can be further improved, the appearance quality of the prepared colorful shells is better, the preparation method of the colorful shell can well attach and combine the shells and the colorful films together, the deformation phenomenon of the colorful films is favorably prevented, the colorful films are prevented from generating wrinkles or stripes, the prepared colorful shell has smooth and flat appearances, and good quality, and the preparation method is simple and is suitable for industrial production.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The preparation method of the colorful shell is characterized by comprising the following steps:
providing a colorful film, placing the colorful film into a cavity of an injection mold, and introducing filling gas into the cavity of the injection mold so that the cavity of the injection mold is filled with the filling gas;
heating the injection mold to 50-80 ℃, and keeping the temperature for 1-2 min;
inject the injection molding material into injection mold's die cavity through the hole of moulding plastics to it is right through the hole of bleeding the operation of bleeding injection mold's die cavity, pressurize shaping, the cooling, the die sinking obtains dazzling various casing, the hole of moulding plastics set up in injection mold's first end, the hole of moulding plastics with the die cavity intercommunication, injection mold's second end is provided with the aspirating hole, injection mold's first end and second end set up dorsad, the aspirating hole with the die cavity intercommunication.
2. The method of claim 1, wherein the injection molding compound is at least one of polymethyl methacrylate and polycarbonate.
3. The method for manufacturing the colorful shell according to claim 1, wherein before the operation of placing the colorful film into the cavity of the injection mold, a coating operation is further performed on the colorful film, so that the colorful film forms an adhesive layer.
4. The method for manufacturing the colorful shell according to claim 3, wherein after the operation of coating the colorful film to form an adhesive layer on the colorful film, injection molding particles are further sprayed on the surface of the adhesive layer to form an injection molding particle layer.
5. The method for manufacturing a glare shield according to claim 4, wherein after the step of spraying the injection molding particles on the surface of the adhesive layer to form a layer of injection molding particles, the step of coating the surface of the layer of injection molding particles again to form a layer of silicone glue on the surface of the layer of injection molding particles.
6. The method of manufacturing a glare shield case according to claim 1, wherein in the pressure-maintaining molding operation, the pressure of the pressure-maintaining molding is controlled to be 65MPa to 70MPa, and the time of the pressure-maintaining molding is controlled to be 45s to 55 s.
7. The method for manufacturing the colorful shell according to claim 3, wherein after the operation of performing the primary coating operation on the colorful film to form an adhesive layer on the colorful film, a semi-curing operation is further performed on the adhesive layer to semi-cure the adhesive layer.
8. The method of making a glare shield according to claim 3, wherein said adhesive layer is a thermoset adhesive layer.
9. The method of making a glare housing of claim 1, wherein the fill gas is nitrogen.
10. A colorful shell, characterized in that the colorful shell is prepared by the preparation method of the colorful shell as claimed in any one of the claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111436787.2A CN114102978B (en) | 2021-11-29 | 2021-11-29 | Colorful shell and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111436787.2A CN114102978B (en) | 2021-11-29 | 2021-11-29 | Colorful shell and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114102978A true CN114102978A (en) | 2022-03-01 |
| CN114102978B CN114102978B (en) | 2024-06-18 |
Family
ID=80367777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111436787.2A Active CN114102978B (en) | 2021-11-29 | 2021-11-29 | Colorful shell and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114102978B (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH562059A5 (en) * | 1971-03-04 | 1975-05-30 | Luethy Erich | Anti-slip coating, esp. for motor car pedals - using layer of plastic contg. particles of silicon carbide |
| CA1333627C (en) * | 1988-08-05 | 1994-12-20 | Rikizou Tanaka | Interior-finishing material for use in automobiles and a method for producing the same |
| JPH07156198A (en) * | 1993-12-10 | 1995-06-20 | Taiho Kogyo Kk | Production of synthetic resin hollow molded article |
| US5534097A (en) * | 1994-09-02 | 1996-07-09 | Lear Corporation | Method of bonding a seat trim cover to a foam cushion utilizing magnetic induction bonding |
| JP2002292669A (en) * | 2001-03-29 | 2002-10-09 | Sekisui Plastics Co Ltd | Method for producing foamed resin molding with skin |
| JP2003071996A (en) * | 2001-09-07 | 2003-03-12 | Sumitomo Chem Co Ltd | Laminate |
| JP2004027111A (en) * | 2002-06-27 | 2004-01-29 | Teijin Chem Ltd | Polycarbonate resin molded item having hard coat layer |
| JP2004352361A (en) * | 2003-05-06 | 2004-12-16 | Mitsubishi Gas Chem Co Inc | Multilayered container |
| DE102005050930A1 (en) * | 2005-10-21 | 2007-04-26 | Basf Ag | Molding with reverse side plastics carrier especially for use in vehicle exterior parts includes a composite with graft copolymer substrate, impact-modified interlayer and cover layer containing polymethyl methacrylate |
| EP1813179A2 (en) * | 2006-01-30 | 2007-08-01 | HAMBERGER INDUSTRIEWERKE GmbH | Method for producing a moulded part and a moulded part produced according to this method |
| DE102006038930A1 (en) * | 2006-08-18 | 2008-02-21 | Daimler Ag | Manufacturing composite component for vehicle, places metal tube in mold cavity, pressurizes it internally and injection-molds plastic around it |
| US20090092838A1 (en) * | 2007-10-09 | 2009-04-09 | Sutech Trading Limited | Housing, injection mold for making the housing, and method for making the housing by using the injection mold |
| CN101564884A (en) * | 2009-06-05 | 2009-10-28 | 上海名盛汽车饰件有限公司 | Injection molding method for in-mold decoration |
| DE102009017698A1 (en) * | 2008-04-23 | 2009-10-29 | Daimler Ag | Component i.e. foil component, manufacturing method for passenger car, involves back-filling foil element with plastic, partially representing outer wall of component by element, and closing transparent plastic layer with edge of element |
| JP2009262511A (en) * | 2008-04-30 | 2009-11-12 | Housetec Inc | Laminated molding and method for manufacturing laminated molding |
| CN101804684A (en) * | 2010-02-10 | 2010-08-18 | 上海名盛汽车饰件有限公司 | In-mould decorating injection moulding method and mould |
| US20110135934A1 (en) * | 2009-12-08 | 2011-06-09 | Bayer Materialscience Ag | Process For The Production Of Polyurethane Composite Components |
| WO2011093167A1 (en) * | 2010-01-26 | 2011-08-04 | 日本写真印刷株式会社 | Injection-molded and simultaneously decorated article with antenna and production method thereof, and power feeding structure of housing with antenna |
| EP2433773A1 (en) * | 2010-09-24 | 2012-03-28 | Bayer MaterialScience AG | Method for producing a moulded part comprising a back moulded film with an electrically conductive coating and moulded part |
| CN105751426A (en) * | 2016-03-03 | 2016-07-13 | 上海延锋金桥汽车饰件系统有限公司 | Molding method of automotive interior part with multilayered structure |
| CN207594195U (en) * | 2017-12-06 | 2018-07-10 | 天健精密模具注塑（惠州）有限公司 | One kind is quickly cooled down formula injection moulding apparatus |
| CN111391218A (en) * | 2020-03-20 | 2020-07-10 | 东莞市艾尔玛塑件科技有限公司 | In-mold decoration forming process |
| CN113423213A (en) * | 2021-06-08 | 2021-09-21 | Oppo广东移动通信有限公司 | Shell assembly, preparation method thereof and electronic equipment |
-
2021
- 2021-11-29 CN CN202111436787.2A patent/CN114102978B/en active Active
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH562059A5 (en) * | 1971-03-04 | 1975-05-30 | Luethy Erich | Anti-slip coating, esp. for motor car pedals - using layer of plastic contg. particles of silicon carbide |
| CA1333627C (en) * | 1988-08-05 | 1994-12-20 | Rikizou Tanaka | Interior-finishing material for use in automobiles and a method for producing the same |
| JPH07156198A (en) * | 1993-12-10 | 1995-06-20 | Taiho Kogyo Kk | Production of synthetic resin hollow molded article |
| US5534097A (en) * | 1994-09-02 | 1996-07-09 | Lear Corporation | Method of bonding a seat trim cover to a foam cushion utilizing magnetic induction bonding |
| JP2002292669A (en) * | 2001-03-29 | 2002-10-09 | Sekisui Plastics Co Ltd | Method for producing foamed resin molding with skin |
| JP2003071996A (en) * | 2001-09-07 | 2003-03-12 | Sumitomo Chem Co Ltd | Laminate |
| JP2004027111A (en) * | 2002-06-27 | 2004-01-29 | Teijin Chem Ltd | Polycarbonate resin molded item having hard coat layer |
| JP2004352361A (en) * | 2003-05-06 | 2004-12-16 | Mitsubishi Gas Chem Co Inc | Multilayered container |
| DE102005050930A1 (en) * | 2005-10-21 | 2007-04-26 | Basf Ag | Molding with reverse side plastics carrier especially for use in vehicle exterior parts includes a composite with graft copolymer substrate, impact-modified interlayer and cover layer containing polymethyl methacrylate |
| EP1813179A2 (en) * | 2006-01-30 | 2007-08-01 | HAMBERGER INDUSTRIEWERKE GmbH | Method for producing a moulded part and a moulded part produced according to this method |
| DE102006038930A1 (en) * | 2006-08-18 | 2008-02-21 | Daimler Ag | Manufacturing composite component for vehicle, places metal tube in mold cavity, pressurizes it internally and injection-molds plastic around it |
| US20090092838A1 (en) * | 2007-10-09 | 2009-04-09 | Sutech Trading Limited | Housing, injection mold for making the housing, and method for making the housing by using the injection mold |
| DE102009017698A1 (en) * | 2008-04-23 | 2009-10-29 | Daimler Ag | Component i.e. foil component, manufacturing method for passenger car, involves back-filling foil element with plastic, partially representing outer wall of component by element, and closing transparent plastic layer with edge of element |
| JP2009262511A (en) * | 2008-04-30 | 2009-11-12 | Housetec Inc | Laminated molding and method for manufacturing laminated molding |
| CN101564884A (en) * | 2009-06-05 | 2009-10-28 | 上海名盛汽车饰件有限公司 | Injection molding method for in-mold decoration |
| US20110135934A1 (en) * | 2009-12-08 | 2011-06-09 | Bayer Materialscience Ag | Process For The Production Of Polyurethane Composite Components |
| WO2011093167A1 (en) * | 2010-01-26 | 2011-08-04 | 日本写真印刷株式会社 | Injection-molded and simultaneously decorated article with antenna and production method thereof, and power feeding structure of housing with antenna |
| CN101804684A (en) * | 2010-02-10 | 2010-08-18 | 上海名盛汽车饰件有限公司 | In-mould decorating injection moulding method and mould |
| EP2433773A1 (en) * | 2010-09-24 | 2012-03-28 | Bayer MaterialScience AG | Method for producing a moulded part comprising a back moulded film with an electrically conductive coating and moulded part |
| CN105751426A (en) * | 2016-03-03 | 2016-07-13 | 上海延锋金桥汽车饰件系统有限公司 | Molding method of automotive interior part with multilayered structure |
| CN207594195U (en) * | 2017-12-06 | 2018-07-10 | 天健精密模具注塑（惠州）有限公司 | One kind is quickly cooled down formula injection moulding apparatus |
| CN111391218A (en) * | 2020-03-20 | 2020-07-10 | 东莞市艾尔玛塑件科技有限公司 | In-mold decoration forming process |
| CN113423213A (en) * | 2021-06-08 | 2021-09-21 | Oppo广东移动通信有限公司 | Shell assembly, preparation method thereof and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114102978B (en) | 2024-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20060146278A1 (en) | Process to mold a plastic optical article with integrated hard coating | |
| CN106483588A (en) | Eyeglass pad pasting processing method | |
| CN102765230A (en) | Compound fiber cloth as well as application and application method thereof | |
| CN114316787A (en) | UV transfer printing adhesive, preparation method and application thereof | |
| CN106064443A (en) | A kind of preparation method of vehicle-carrying display screen integration plastic rubber panel high dimensional accuracy | |
| CN215397458U (en) | Electronic product shell | |
| CN103029306A (en) | Making method of carbon fiber housing | |
| JP2012218432A (en) | Composite three-dimensional molded article with acrylic resin sheet and fabric-like object integrated therein and production method therefor | |
| CN110406007A (en) | A kind of preparation method of curved optic plastics ear casing | |
| US10828930B2 (en) | Composite body made of fibre-composite material and a decorative element | |
| CN114102978A (en) | Colorful shell and preparation method thereof | |
| CN109843564A (en) | Composite sheet and its manufacturing method | |
| ES2162056T3 (en) | PROCEDURE FOR THE FORMATION OF ARTICLES THAT PRESENT LAYERS OF CONTROLLED THICKNESS. | |
| US20160193820A1 (en) | Coloured carbon-fibre composite materials | |
| CN1799828A (en) | Molded product with decoration surface layer and manufacturing method thereof | |
| CN103029305A (en) | Making method of carbon fiber housing | |
| US20080094702A1 (en) | Polarizing Resin Lens and Process for Producing Same | |
| CN112644132A (en) | High-hardness and high-weather-resistance polycarbonate composite board with excellent impact resistance and preparation method thereof | |
| KR100256212B1 (en) | a glass panel manufacturing method | |
| CN108340596B (en) | Production method of integrated buoy | |
| CN101172381A (en) | Production technique for resin products with crystal peaks over peaks decorative design | |
| CN101172380A (en) | Technique for producing resin products including stereo graphic pattern | |
| CN106273572A (en) | The production technology of a kind of microprism flash of light film and microprism flash of light film | |
| US20140087144A1 (en) | Resin molded product | |
| CN213564862U (en) | Portable electronic product rear cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |