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CN109553422A - A kind of modeling base alumina pellet preparation method being injection moulded ceramic product - Google Patents

A kind of modeling base alumina pellet preparation method being injection moulded ceramic product Download PDF

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Publication number
CN109553422A
CN109553422A CN201710870974.9A CN201710870974A CN109553422A CN 109553422 A CN109553422 A CN 109553422A CN 201710870974 A CN201710870974 A CN 201710870974A CN 109553422 A CN109553422 A CN 109553422A
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mixing
kneaded
aluminium oxide
granulated
ceramic product
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刘发权
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Chengdu Bugee Technology Co Ltd
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Chengdu Bugee Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C—CHEMISTRY; METALLURGY
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62695—Granulation or pelletising
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/638—Removal thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6022—Injection moulding

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  • Ceramic Engineering (AREA)
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  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The invention discloses a kind of modeling base aluminium oxide applied to injection moulding ceramic product to be granulated preparation method for material, the modeling base aluminium oxide for being applied to injection moulding ceramic product is granulated preparation method for material, and specific step is as follows: S1: carrying out weighing and proportioning in proportion to raw material major ingredient and auxiliary material, S2: Xiang Zidong mixing is granulated in all-in-one machine and feeds, S3: it is kneaded for the first time, S4: second is kneaded, S5: third time cooling is kneaded, S6: extruding pelletization, S7: packaging.Good fluidity of the present invention is entirely capable of producing the product that single-piece aluminium oxide ceramics green body weight is greater than 60 grams, the exhaust gas without evaporative emission atmosphere in 100 DEG C or so of debinding furnace achievees the purpose that environmental protection when being applied to injection moulding ceramic product.Modeling base aluminium oxide granulation material is a kind of when being suitable for alumina ceramic product manufacture, and production cost is low, speed of production is fast, environmentally friendly, energy-efficient new material.

Description

A kind of modeling base alumina pellet preparation method being injection moulded ceramic product
Technical field
The present invention relates to aluminium oxide granulating technique field, specially a kind of modeling base oxygen applied to injection moulding ceramic product Change aluminium and is granulated preparation method for material.
Background technique
The aluminium oxide granulation material for injection molding technique manufacture alumina ceramic product domestic at present, is cured base oxygen Change aluminium granulation material, i.e., need that auxiliary material Witcodur 272 is added in main material alumina powder, the shortcomings that with this cured base aluminium oxide granulation material are as follows: 1. product of the manufacture single-piece aluminium oxide ceramics green body weight greater than 60 grams or side can not be injection moulded without enough mobility Backboard, panel, appearance member, curved-surface piece, three D structural members of long size > 300mm etc..2. to injection molding base in production process When body carries out degreasing link, cured because containing in granulation material, in the debinding furnace of KKTC or so when degreasing, the discharge vaporization that is bound to goes out It is cured, to be polluted to atmosphere generation environment.3. short time consumption is needed to be up to when degreasing link > 20 hours, electric power, combustion gas resource are consumed It is more.4. the green body after degreasing generally requires 90 hours or so when being sintered in high temperature kiln, consumption electric power, combustion gas resource are more.This It is all that us is needed to solve the problems, such as a bit, to improve the production effect of aluminium oxide ceramics.
Summary of the invention
The purpose of the present invention is to provide a kind of modeling base aluminium oxide granulation material preparations applied to injection moulding ceramic product Method, should being granulated preparation method for material applied to the modeling base aluminium oxide of injection moulding ceramic product, specific step is as follows:
S1: weighing and proportioning in proportion is carried out to raw material major ingredient and auxiliary material, raw material is placed spare after weighing and proportioning；
S2: Xiang Zidong mixing is granulated in all-in-one machine and feeds, by the raw material of weighing and proportioning in S1 be added to that inner cavity has been warmed up from Dynamic mixing is granulated in all-in-one machine, and it is 280 DEG C that automatic mixing, which is granulated the temperature after the preheating of all-in-one machine inner cavity,；
S3: being kneaded for the first time, and mixing is granulated all-in-one machine and rises to 150 DEG C -200 DEG C in inner cavity temperature, carries out to the raw material of addition It is kneaded, mixing time is 10-30 minutes；
S4: second is kneaded, after the completion of being kneaded for the first time by automatic mixing granulation all-in-one machine inner cavity be warming up to 250 DEG C -300 DEG C into Second of mixing of row, mixing time are 30-50 minutes；
S5: third time cooling is kneaded, and after being kneaded for the second time, carries out mixing granulation all-in-one machine inner cavity to be cooled to 150 DEG C -200 It DEG C is kneaded, mixing time is 60-120 minutes；
S6: extruding pelletization, 30-50 revs/min of revolving speed of extrusion of granulation all-in-one machine of setting mixing, 50-60 revs/min of speed of agitator, 50-60 revs/min of pelletizing revolving speed, then automatic-extrusion, pelletizing；
S7: packaging, the granulation material partial size after squeezing out pelletizing is 1-5mm, when naturally cooling to 25 DEG C, sealed package.
Preferably, the raw material matched in the step S1 is as follows by weight: major ingredient are as follows: aluminium oxide 75.1%-88.8%, Auxiliary material are as follows: plastics rheological agent 1%-3%, polymethoxy dimethyl ether 0.5%-1.6%, one acetate ethylene copolymer 0.8%- of ethylene 2.5%, erucyl amide 0.6%-2.3%, polyethylene glycol oxide 0.3%-1.5%, oxalic acid 8%-14%.
Preferably, the major ingredient aluminium oxide is that content is at least the stable alumina powder of 95% yttrium.
Preferably, the oxalic acid can also be replaced by polyformaldehyde.
Compared with prior art, the beneficial effects of the present invention are: good fluidity of the present invention, is being applied to injection moulding ceramics When product, it is entirely capable of producing product of the single-piece aluminium oxide ceramics green body weight greater than 60 grams or size dimension is greater than 300mm Backboard, panel, appearance member, curved-surface piece, three D structural members etc..Degreasing link is carried out to injection molding green body in production process When, because, without cured, without evaporative emission atmosphere in 100 DEG C or so of debinding furnace exhaust gas, reaching environmental protection in granulation material Purpose.Degreasing link short time consumption only needs < 8 hours, largely saves the resources such as electric power, combustion gas.Green body after degreasing is in high temperature kiln It is generally only needed 60 hours or so when sintering in furnace, the resources such as same a large amount of saving electric power, combustion gas.In conclusion modeling base aluminium oxide When granulation material is a kind of manufacture suitable for alumina ceramic product, production cost is low, speed of production is fast, environmentally friendly, energy-efficient novel Material.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not For limiting the present invention.
Embodiment 1
A kind of modeling base aluminium oxide granulation preparation method for material applied to injection moulding ceramic product, should be applied to injection moulding ceramics The modeling base aluminium oxide of product is granulated preparation method for material, and specific step is as follows:
S1: weighing and proportioning in proportion is carried out to raw material major ingredient and auxiliary material, raw material is placed spare after weighing and proportioning；
S2: Xiang Zidong mixing is granulated in all-in-one machine and feeds, by the raw material of weighing and proportioning in S1 be added to that inner cavity has been warmed up from Dynamic mixing is granulated in all-in-one machine, and it is 280 DEG C that automatic mixing, which is granulated the temperature after the preheating of all-in-one machine inner cavity,；
S3: being kneaded for the first time, and mixing is granulated all-in-one machine and rises to 150 DEG C in inner cavity temperature, is kneaded to the raw material of addition, is mixed Refining the time is 10 minutes；
S4: second is kneaded, and automatic mixing granulation all-in-one machine inner cavity is warming up to 250 DEG C after the completion of being kneaded for the first time and carries out second Secondary mixing, mixing time are 30 minutes；
S5: third time cooling is kneaded, and after being kneaded for the second time, carries out mixing granulation all-in-one machine inner cavity to be cooled to 150 DEG C of progress It is kneaded, mixing time is 60 minutes；
S6: extruding pelletization, setting mixing are granulated all-in-one machine and squeeze out 30 revs/min of revolving speed, and 50 revs/min of speed of agitator, pelletizing turns 50 revs/min of speed, then automatic-extrusion, pelletizing；
S7: packaging, the granulation material partial size after squeezing out pelletizing is 1mm, when naturally cooling to 25 DEG C, sealed package.
The raw material matched in the step S1 is as follows by weight: major ingredient are as follows: aluminium oxide 82.8%, auxiliary material are as follows: plastics stream Become agent 1%, polymethoxy dimethyl ether 0.5%, one acetate ethylene copolymer 0.8% of ethylene, erucyl amide 0.6%, polyoxyethylene Alkene 0.3%, oxalic acid 14%.The major ingredient aluminium oxide is that content is at least the stable alumina powder of 95% yttrium.
Embodiment 2
A kind of modeling base aluminium oxide granulation preparation method for material applied to injection moulding ceramic product, should be applied to injection moulding ceramics The modeling base aluminium oxide of product is granulated preparation method for material, and specific step is as follows:
S1: weighing and proportioning in proportion is carried out to raw material major ingredient and auxiliary material, raw material is placed spare after weighing and proportioning；
S2: Xiang Zidong mixing is granulated in all-in-one machine and feeds, by the raw material of weighing and proportioning in S1 be added to that inner cavity has been warmed up from Dynamic mixing is granulated in all-in-one machine, and it is 280 DEG C that automatic mixing, which is granulated the temperature after the preheating of all-in-one machine inner cavity,；
S3: being kneaded for the first time, and mixing is granulated all-in-one machine and rises to 180 DEG C in inner cavity temperature, is kneaded to the raw material of addition, is mixed Refining the time is 20 minutes；
S4: second is kneaded, and automatic mixing granulation all-in-one machine inner cavity is warming up to 280 DEG C after the completion of being kneaded for the first time and carries out second Secondary mixing, mixing time are 40 minutes；
S5: third time cooling is kneaded, and after being kneaded for the second time, carries out mixing granulation all-in-one machine inner cavity to be cooled to 180 DEG C of progress It is kneaded, mixing time is 80 minutes；
S6: extruding pelletization, setting mixing are granulated all-in-one machine and squeeze out 40 revs/min of revolving speed, and 55 revs/min of speed of agitator, pelletizing turns 55 revs/min of speed, then automatic-extrusion, pelletizing；
S7: packaging, the granulation material partial size after squeezing out pelletizing is 3mm, when naturally cooling to 25 DEG C, sealed package.
The raw material matched in the step S1 is as follows by weight: major ingredient are as follows: aluminium oxide 81.2%, auxiliary material are as follows: plastics stream Become agent 2%, polymethoxy dimethyl ether 1%, one acetate ethylene copolymer 1.5% of ethylene, erucyl amide 1.5%, polyethylene glycol oxide 0.8%, oxalic acid 12%.The major ingredient aluminium oxide is that content is at least the stable alumina powder of 95% yttrium.
Embodiment 3
A kind of modeling base aluminium oxide granulation preparation method for material applied to injection moulding ceramic product, should be applied to injection moulding ceramics The modeling base aluminium oxide of product is granulated preparation method for material, and specific step is as follows:
S1: weighing and proportioning in proportion is carried out to raw material major ingredient and auxiliary material, raw material is placed spare after weighing and proportioning；
S2: Xiang Zidong mixing is granulated in all-in-one machine and feeds, by the raw material of weighing and proportioning in S1 be added to that inner cavity has been warmed up from Dynamic mixing is granulated in all-in-one machine, and it is 280 DEG C that automatic mixing, which is granulated the temperature after the preheating of all-in-one machine inner cavity,；
S3: being kneaded for the first time, and mixing is granulated all-in-one machine and rises to 200 DEG C in inner cavity temperature, is kneaded to the raw material of addition, is mixed Refining the time is 30 minutes；
S4: second is kneaded, and automatic mixing granulation all-in-one machine inner cavity is warming up to 300 DEG C after the completion of being kneaded for the first time and carries out second Secondary mixing, mixing time are 50 minutes；
S5: third time cooling is kneaded, and after being kneaded for the second time, carries out mixing granulation all-in-one machine inner cavity to be cooled to 200 DEG C of progress It is kneaded, mixing time is 120 minutes；
S6: extruding pelletization, setting mixing are granulated all-in-one machine and squeeze out 50 revs/min of revolving speed, and 60 revs/min of speed of agitator, pelletizing turns 60 revs/min of speed, then automatic-extrusion, pelletizing；
S7: packaging, the granulation material partial size after squeezing out pelletizing is 5mm, when naturally cooling to 25 DEG C, sealed package.
The raw material matched in the step S1 is as follows by weight: major ingredient are as follows: aluminium oxide 79.9%, auxiliary material are as follows: plastics stream Become agent 1%, polymethoxy dimethyl ether 0.5%, one acetate ethylene copolymer 0.8% of ethylene, erucyl amide 2.3%, polyoxyethylene Alkene 1.5%, oxalic acid 14%.The major ingredient aluminium oxide is that content is at least the stable alumina powder of 95% yttrium.
Embodiment 4
A kind of modeling base aluminium oxide granulation preparation method for material applied to injection moulding ceramic product, should be applied to injection moulding ceramics The modeling base aluminium oxide of product is granulated preparation method for material, and specific step is as follows:
S1: weighing and proportioning in proportion is carried out to raw material major ingredient and auxiliary material, raw material is placed spare after weighing and proportioning；
S2: Xiang Zidong mixing is granulated in all-in-one machine and feeds, by the raw material of weighing and proportioning in S1 be added to that inner cavity has been warmed up from Dynamic mixing is granulated in all-in-one machine, and it is 280 DEG C that automatic mixing, which is granulated the temperature after the preheating of all-in-one machine inner cavity,；
S3: being kneaded for the first time, and mixing is granulated all-in-one machine and rises to 150 DEG C in inner cavity temperature, is kneaded to the raw material of addition, is mixed Refining the time is 10 minutes；
S4: second is kneaded, and automatic mixing granulation all-in-one machine inner cavity is warming up to 250 DEG C after the completion of being kneaded for the first time and carries out second Secondary mixing, mixing time are 30 minutes；
S5: third time cooling is kneaded, and after being kneaded for the second time, carries out mixing granulation all-in-one machine inner cavity to be cooled to 150 DEG C of progress It is kneaded, mixing time is 60 minutes；
S6: extruding pelletization, setting mixing are granulated all-in-one machine and squeeze out 30 revs/min of revolving speed, and 50 revs/min of speed of agitator, pelletizing turns 50 revs/min of speed, then automatic-extrusion, pelletizing；
S7: packaging, the granulation material partial size after squeezing out pelletizing is 1mm, when naturally cooling to 25 DEG C, sealed package.
The raw material matched in the step S1 is as follows by weight: major ingredient are as follows: aluminium oxide 82.8%, auxiliary material are as follows: plastics stream Become agent 1%, polymethoxy dimethyl ether 0.5%, one acetate ethylene copolymer 0.8% of ethylene, erucyl amide 0.6%, polyoxyethylene Alkene 0.3%, polyformaldehyde 14%.The major ingredient aluminium oxide is that content is at least the stable alumina powder of 95% yttrium.
Embodiment 5
A kind of modeling base aluminium oxide granulation preparation method for material applied to injection moulding ceramic product, should be applied to injection moulding ceramics The modeling base aluminium oxide of product is granulated preparation method for material, and specific step is as follows:
S1: weighing and proportioning in proportion is carried out to raw material major ingredient and auxiliary material, raw material is placed spare after weighing and proportioning；
S2: Xiang Zidong mixing is granulated in all-in-one machine and feeds, by the raw material of weighing and proportioning in S1 be added to that inner cavity has been warmed up from Dynamic mixing is granulated in all-in-one machine, and it is 280 DEG C that automatic mixing, which is granulated the temperature after the preheating of all-in-one machine inner cavity,；
S3: being kneaded for the first time, and mixing is granulated all-in-one machine and rises to 180 DEG C in inner cavity temperature, is kneaded to the raw material of addition, is mixed Refining the time is 20 minutes；
S4: second is kneaded, and automatic mixing granulation all-in-one machine inner cavity is warming up to 280 DEG C after the completion of being kneaded for the first time and carries out second Secondary mixing, mixing time are 40 minutes；
S5: third time cooling is kneaded, and after being kneaded for the second time, carries out mixing granulation all-in-one machine inner cavity to be cooled to 180 DEG C of progress It is kneaded, mixing time is 80 minutes；
S6: extruding pelletization, setting mixing are granulated all-in-one machine and squeeze out 40 revs/min of revolving speed, and 55 revs/min of speed of agitator, pelletizing turns 55 revs/min of speed, then automatic-extrusion, pelletizing；
S7: packaging, the granulation material partial size after squeezing out pelletizing is 3mm, when naturally cooling to 25 DEG C, sealed package.
The raw material matched in the step S1 is as follows by weight: major ingredient are as follows: aluminium oxide 81.2%, auxiliary material are as follows: plastics stream Become agent 2%, polymethoxy dimethyl ether 1%, one acetate ethylene copolymer 1.5% of ethylene, erucyl amide 1.5%, polyethylene glycol oxide 0.8%, polyformaldehyde 12%.The major ingredient aluminium oxide is that content is at least the stable alumina powder of 95% yttrium.
Embodiment 6
A kind of modeling base aluminium oxide granulation preparation method for material applied to injection moulding ceramic product, should be applied to injection moulding ceramics The modeling base aluminium oxide of product is granulated preparation method for material, and specific step is as follows:
S1: weighing and proportioning in proportion is carried out to raw material major ingredient and auxiliary material, raw material is placed spare after weighing and proportioning；
S2: Xiang Zidong mixing is granulated in all-in-one machine and feeds, by the raw material of weighing and proportioning in S1 be added to that inner cavity has been warmed up from Dynamic mixing is granulated in all-in-one machine, and it is 280 DEG C that automatic mixing, which is granulated the temperature after the preheating of all-in-one machine inner cavity,；
S3: being kneaded for the first time, and mixing is granulated all-in-one machine and rises to 200 DEG C in inner cavity temperature, is kneaded to the raw material of addition, is mixed Refining the time is 30 minutes；
S4: second is kneaded, and automatic mixing granulation all-in-one machine inner cavity is warming up to 300 DEG C after the completion of being kneaded for the first time and carries out second Secondary mixing, mixing time are 50 minutes；
S5: third time cooling is kneaded, and after being kneaded for the second time, carries out mixing granulation all-in-one machine inner cavity to be cooled to 200 DEG C of progress It is kneaded, mixing time is 120 minutes；
S6: extruding pelletization, setting mixing are granulated all-in-one machine and squeeze out 50 revs/min of revolving speed, and 60 revs/min of speed of agitator, pelletizing turns 60 revs/min of speed, then automatic-extrusion, pelletizing；
S7: packaging, the granulation material partial size after squeezing out pelletizing is 5mm, when naturally cooling to 25 DEG C, sealed package.
The raw material matched in the step S1 is as follows by weight: major ingredient are as follows: aluminium oxide 79.9%, auxiliary material are as follows: plastics stream Become agent 1%, polymethoxy dimethyl ether 0.5%, one acetate ethylene copolymer 0.8% of ethylene, erucyl amide 2.3%, polyoxyethylene Alkene 1.5%, polyformaldehyde 14%.The major ingredient aluminium oxide is that content is at least the stable alumina powder of 95% yttrium.
Good fluidity of the present invention is entirely capable of producing single-piece aluminium oxide ceramics when being applied to injection moulding ceramic product Product of the green body weight greater than 60 grams or size dimension are greater than backboard, panel, the appearance member, curved-surface piece, three D structures of 300mm Part etc..It is cured because being free of in granulation material when carrying out degreasing link to injection molding green body in production process, at 100 DEG C or so Exhaust gas without evaporative emission atmosphere in debinding furnace, achievees the purpose that environmental protection.Degreasing link short time consumption only needs < 8 hours, greatly Amount saves the resources such as electric power, combustion gas.Green body after degreasing generally only needs 60 hours or so when being sintered in high temperature kiln, same big Amount saves the resources such as electric power, combustion gas.In conclusion modeling base aluminium oxide granulation material is a kind of suitable for alumina ceramic product system When making, production cost is low, speed of production is fast, environmentally friendly, energy-efficient new material.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (4)

1. a kind of modeling base aluminium oxide applied to injection moulding ceramic product is granulated preparation method for material, it is characterised in that: the application Being granulated preparation method for material in the modeling base aluminium oxide of injection moulding ceramic product, specific step is as follows:
S1: weighing and proportioning in proportion is carried out to raw material major ingredient and auxiliary material, raw material is placed spare after weighing and proportioning；
S2: Xiang Zidong mixing is granulated in all-in-one machine and feeds, by the raw material of weighing and proportioning in S1 be added to that inner cavity has been warmed up from Dynamic mixing is granulated in all-in-one machine, and it is 280 DEG C that automatic mixing, which is granulated the temperature after the preheating of all-in-one machine inner cavity,；
S3: being kneaded for the first time, and mixing is granulated all-in-one machine and rises to 150 DEG C -200 DEG C in inner cavity temperature, carries out to the raw material of addition It is kneaded, mixing time is 10-30 minutes；
S4: second is kneaded, after the completion of being kneaded for the first time by automatic mixing granulation all-in-one machine inner cavity be warming up to 250 DEG C -300 DEG C into Second of mixing of row, mixing time are 30-50 minutes；
S5: third time cooling is kneaded, and after being kneaded for the second time, carries out mixing granulation all-in-one machine inner cavity to be cooled to 150 DEG C -200 It DEG C is kneaded, mixing time is 60-120 minutes；
S6: extruding pelletization, 30-50 revs/min of revolving speed of extrusion of granulation all-in-one machine of setting mixing, 50-60 revs/min of speed of agitator, 50-60 revs/min of pelletizing revolving speed, then automatic-extrusion, pelletizing；
S7: packaging, the granulation material partial size after squeezing out pelletizing is 1-5mm, when naturally cooling to 25 DEG C, sealed package.
2. a kind of modeling base aluminium oxide granulation material preparation side applied to injection moulding ceramic product according to claim 1 Method, it is characterised in that: the raw material matched in the step S1 is as follows by weight: major ingredient are as follows: aluminium oxide 75.1%-88.8%, Auxiliary material are as follows: plastics rheological agent 1%-3%, polymethoxy dimethyl ether 0.5%-1.6%, one acetate ethylene copolymer 0.8%- of ethylene 2.5%, erucyl amide 0.6%-2.3%, polyethylene glycol oxide 0.3%-1.5%, oxalic acid 8%-14%.
3. a kind of modeling base aluminium oxide granulation material preparation side applied to injection moulding ceramic product according to claim 1 Method, it is characterised in that: the major ingredient aluminium oxide is that content is at least the stable alumina powder of 95% yttrium.
4. a kind of modeling base aluminium oxide granulation material preparation side applied to injection moulding ceramic product according to claim 1 Method, it is characterised in that: the oxalic acid can also be replaced by polyformaldehyde.
CN201710870974.9A 2017-09-24 2017-09-24 A kind of modeling base alumina pellet preparation method being injection moulded ceramic product Pending CN109553422A (en)

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