CN114005663A - NR inductor, tin wire and manufacturing method of NR inductor - Google Patents
NR inductor, tin wire and manufacturing method of NR inductor Download PDFInfo
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- CN114005663A CN114005663A CN202111129987.3A CN202111129987A CN114005663A CN 114005663 A CN114005663 A CN 114005663A CN 202111129987 A CN202111129987 A CN 202111129987A CN 114005663 A CN114005663 A CN 114005663A
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 238000005476 soldering Methods 0.000 claims abstract description 67
- 239000011265 semifinished product Substances 0.000 claims abstract description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000004804 winding Methods 0.000 claims abstract description 22
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 12
- 239000000047 product Substances 0.000 claims abstract description 12
- 229920002635 polyurethane Polymers 0.000 claims abstract description 10
- 239000004814 polyurethane Substances 0.000 claims abstract description 10
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 37
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 37
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 37
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 36
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 36
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 23
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 18
- 239000001361 adipic acid Substances 0.000 claims description 18
- 235000011037 adipic acid Nutrition 0.000 claims description 18
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 18
- 150000004702 methyl esters Chemical class 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 239000001384 succinic acid Substances 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004335 litholrubine BK Substances 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
- B23K35/262—Sn as the principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention discloses an NR inductor, a tin wire and a manufacturing method of the NR inductor, wherein the manufacturing method of the NR inductor comprises the following steps; s2, conveying the magnetic core to a winding mechanism through a feeding mechanism; s4, winding the enameled copper wire on the magnetic core through a winding mechanism to form a coil, so as to obtain an NR inductance semi-finished product; the wire feet of the coil are arranged in the electrode groove of the magnetic core; the enameled copper wire is a P180 modified polyurethane enameled copper wire; s6, conveying the NR inductor semi-finished product obtained in the step S4 to a soldering tin mechanism, and soldering the coil pins of the coil and the electrodes in the electrode grooves together through tin wires by the soldering tin mechanism, wherein the soldering temperature is 360-390 ℃, and the soldering time is 1.5-2S; and S8, conveying the NR inductor semi-finished product obtained in the step S6 to a gluing mechanism, and gluing the coil by the gluing mechanism to coat the coil with glue. The invention can ensure the reliability of the NR inductance product, improve the production efficiency and reduce the production cost.
Description
Technical Field
The invention relates to the technical field of inductor production, in particular to an NR inductor (magnetic glue inductor), a tin wire and a manufacturing method of the NR inductor.
Background
At present, in the process of manufacturing an NR inductor, an E180 improved polyesterimide enameled copper wire is wound on a magnetic core of the NR inductor to form a coil, the required soldering tin temperature is higher and the soldering tin time is longer in the process of welding a terminal of the coil to a welding surface of the magnetic core, so that the operation difficulty is increased, a tin wire with high active halogen content in the standard of more than 10000PPM (parts per million, concentration) is required to meet the welding requirement, but the tin wire usually contains chlorine components, heat and the chlorine components during heating and melting of the tin wire are transferred to the coil, the coil is easily dissolved and corroded, the reliability of an NR inductor product is reduced, the production efficiency is reduced, and the production cost is increased.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the NR inductor, the tin wire and the manufacturing method of the NR inductor, which can ensure the reliability of an NR inductor product, improve the production efficiency and reduce the production cost.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the technical scheme provided by the first aspect of the invention is to provide a method for manufacturing an NR inductor, comprising the following steps: s2, conveying the magnetic core to a winding mechanism through a feeding mechanism; s4, winding the enameled copper wire on the magnetic core through a winding mechanism to form a coil, so as to obtain an NR inductance semi-finished product; the wire feet of the coil are arranged in the electrode groove of the magnetic core; the enameled copper wire is a P180 modified polyurethane enameled copper wire; s6, conveying the NR inductor semi-finished product obtained in the step S4 to a soldering tin mechanism, and soldering the coil pins of the coil and the electrodes in the electrode grooves together through tin wires by the soldering tin mechanism, wherein the soldering temperature is 360-390 ℃, and the soldering time is 1.5-2S; the tin wire comprises raw materials of rosin, rosin methyl ester, glutaric acid, succinic acid, sebacic acid and adipic acid, wherein the rosin accounts for 94-98 parts by weight, the rosin methyl ester accounts for 3.3-3.7 parts by weight, the glutaric acid accounts for 0.04-0.44 part by weight, the succinic acid accounts for 0.1-0.5 part by weight, the sebacic acid accounts for 0.1-0.3 part by weight, and the adipic acid accounts for 0.1-0.3 part by weight; s8, conveying the NR inductor semi-finished product obtained in the step S6 to a gluing mechanism, and gluing the coil through the gluing mechanism to coat the coil with glue; s10, conveying the NR inductor semi-finished product obtained in the step S8 to baking equipment, and baking the NR inductor semi-finished product through the baking equipment to cure glue;
and S12, cleaning and drying the NR inductor semi-finished product after the step S10 is finished, so that an NR inductor finished product is obtained.
As a preferable technical solution, in the step S6, the rosin is 96 parts by weight, the rosin methyl ester is 3.5 parts by weight, the glutaric acid is 0.24 parts by weight, the succinic acid is 0.3 parts by weight, the sebacic acid is 0.2 parts by weight, and the adipic acid is 0.2 parts by weight.
Preferably, in step S6, the welding temperature is 375 ℃ and the welding time is 1.8S.
Preferably, in step S6, the halogen content of the tin wire is within 6000 PPM.
As a preferred technical solution, the step S6 specifically includes the following steps: conveying the NR inductor semi-finished product obtained in the step S4 to a soldering station of a soldering mechanism; conveying the tin wire into an electrode groove of the magnetic core through a tin wire conveying assembly of the tin soldering mechanism; and heating and melting the tin wire by a tin soldering iron assembly of the tin soldering mechanism so as to solder the terminal pins of the coil and the electrodes in the electrode grooves.
Preferably, in step S10, the baking time is 0.5 hour, and the baking temperature is 80-120 ℃.
According to the technical scheme provided by the second aspect of the invention, the NR inductor is prepared by adopting the manufacturing method of the scheme.
According to the technical scheme provided by the third aspect of the invention, the tin wire is provided, wherein the raw materials of the tin wire comprise 94-98 parts by weight of rosin, 3.3-3.7 parts by weight of rosin methyl ester, 0.04-0.44 part by weight of glutaric acid, 0.1-0.5 part by weight of succinic acid, 0.1-0.3 part by weight of sebacic acid and 0.1-0.3 part by weight of adipic acid.
The invention has the beneficial effects that: the invention can greatly reduce the temperature and time of soldering tin, reduce the operation difficulty and ensure the reliability of an NR inductance product by winding the P180 improved polyurethane enameled copper wire on the magnetic core, has the characteristics of low activity and the like by adopting the tin wire of which the raw materials comprise rosin, rosin methyl ester, glutaric acid, succinic acid, sebacic acid and adipic acid, does not contain chlorine components, does not conduct heat to a coil when the tin wire is molten in the soldering process, does not damage the coil, further ensures the reliability of the NR inductance, improves the production efficiency and reduces the production cost.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic flow chart diagram of a method for manufacturing an NR inductor according to the present invention.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
First embodiment
Referring to fig. 1, a method for manufacturing an NR inductor according to a first embodiment of the present invention includes the following steps:
and S2, conveying the magnetic core to the winding mechanism through the feeding mechanism.
And S4, winding the enameled copper wire on the magnetic core through the winding mechanism to form a coil, so as to obtain an NR inductance semi-finished product. The coil pin is arranged in the electrode groove of the magnetic core. The enameled copper wire is a P180 improved polyurethane enameled copper wire.
And S6, conveying the NR inductor semi-finished product obtained in the step S4 to a soldering mechanism, and soldering the coil pins and the electrodes in the electrode grooves together through tin wires by the soldering mechanism, wherein the soldering temperature is 360 ℃, and the soldering time is 1.5S (seconds).
The raw materials of the tin wire comprise rosin, rosin methyl ester, glutaric acid, succinic acid, sebacic acid and adipic acid. 94 parts of rosin, 3.3 parts of rosin methyl ester, 0.04 part of glutaric acid, 0.1 part of succinic acid, 0.1 part of sebacic acid and 0.1 part of adipic acid.
In this embodiment, step S6 specifically includes the following steps:
conveying the NR inductor semi-finished product obtained in the step S4 to a soldering station of a soldering mechanism;
conveying the tin wire into an electrode groove of the magnetic core through a tin wire conveying assembly of the tin soldering mechanism;
and heating and melting the tin wire by a tin soldering iron assembly of the tin soldering mechanism so as to solder the terminal pins of the coil and the electrodes in the electrode grooves.
The length of the tin wire in the electrode groove is preferably 0.5-1 times of the length of the electrode, and the length of the tin wire in the electrode groove can be set according to actual conditions.
Further, in step S6, the halogen content of the tin wire is within 6000 PPM.
And S8, conveying the NR inductor semi-finished product obtained in the step S6 to a gluing mechanism, and gluing the coil by the gluing mechanism to coat the coil with glue.
And S10, conveying the NR inductor semi-finished product obtained in the step S8 to baking equipment, and baking the NR inductor semi-finished product through the baking equipment to cure the glue. Preferably, the toasting device is an oven. The baking time is 0.5 hour, and the baking temperature is 80-120 ℃.
And S12, cleaning and drying the NR inductor semi-finished product after the step S10 is finished, so that an NR inductor finished product is obtained.
The invention can greatly reduce the temperature and time of soldering tin, reduce the operation difficulty and ensure the reliability of an NR inductance product by winding the P180 improved polyurethane enameled copper wire on the magnetic core, has the characteristics of low activity and the like by adopting the tin wire of which the raw materials comprise rosin, rosin methyl ester, glutaric acid, succinic acid, sebacic acid and adipic acid, does not contain chlorine components, does not conduct heat to a coil when the tin wire is molten in the soldering process, does not damage the coil, further ensures the reliability of the NR inductance, improves the production efficiency and reduces the production cost.
Second embodiment
Referring to fig. 1, a method for manufacturing an NR inductor according to a second embodiment of the present invention includes the following steps:
and S2, conveying the magnetic core to the winding mechanism through the feeding mechanism.
And S4, winding the enameled copper wire on the magnetic core through the winding mechanism to form a coil, so as to obtain an NR inductance semi-finished product. The coil pin is arranged in the electrode groove of the magnetic core. The enameled copper wire is a P180 improved polyurethane enameled copper wire.
And S6, conveying the NR inductor semi-finished product obtained in the step S4 to a soldering mechanism, and soldering the coil pins and the electrodes of the electrode grooves together through a tin wire by the soldering mechanism, wherein the soldering temperature is 375 ℃, and the soldering time is 1.8S.
The raw materials of the tin wire comprise rosin, rosin methyl ester, glutaric acid, succinic acid, sebacic acid and adipic acid. The rosin comprises, by weight, 96 parts of rosin, 3.5 parts of rosin methyl ester, 0.24 part of glutaric acid, 0.3 part of succinic acid, 0.2 part of sebacic acid and 0.2 part of adipic acid.
In this embodiment, step S6 specifically includes the following steps:
conveying the NR inductor semi-finished product obtained in the step S4 to a soldering station of a soldering mechanism;
conveying the tin wire into an electrode groove of the magnetic core through a tin wire conveying assembly of the tin soldering mechanism;
and heating and melting the tin wire by a tin soldering iron assembly of the tin soldering mechanism so as to solder the terminal pins of the coil and the electrodes in the electrode grooves.
The length of the tin wire in the electrode groove is preferably 0.5-1 times of the length of the electrode, and the length of the tin wire in the electrode groove can be set according to actual conditions.
Further, in step S6, the halogen content of the tin wire is within 6000 PPM.
And S8, conveying the NR inductor semi-finished product obtained in the step S6 to a gluing mechanism, and gluing the coil by the gluing mechanism to coat the coil with glue.
And S10, conveying the NR inductor semi-finished product obtained in the step S8 to baking equipment, and baking the NR inductor semi-finished product through the baking equipment to cure the glue. Preferably, the toasting device is an oven. The baking time is 0.5 hour, and the baking temperature is 80-120 ℃.
And S12, cleaning and drying the NR inductor semi-finished product after the step S10 is finished, so that an NR inductor finished product is obtained.
The invention can greatly reduce the temperature and time of soldering tin, reduce the operation difficulty and ensure the reliability of an NR inductance product by winding the P180 improved polyurethane enameled copper wire on the magnetic core, has the characteristics of low activity and the like by adopting the tin wire of which the raw materials comprise rosin, rosin methyl ester, glutaric acid, succinic acid, sebacic acid and adipic acid, does not contain chlorine components, does not conduct heat to a coil when the tin wire is molten in the soldering process, does not damage the coil, further ensures the reliability of the NR inductance, improves the production efficiency and reduces the production cost.
Third embodiment
Referring to fig. 1, a method for manufacturing an NR inductor according to a third embodiment of the present invention includes the following steps:
and S2, conveying the magnetic core to the winding mechanism through the feeding mechanism.
And S4, winding the enameled copper wire on the magnetic core through the winding mechanism to form a coil, so as to obtain an NR inductance semi-finished product. The coil pin is arranged in the electrode groove of the magnetic core. The enameled copper wire is a P180 improved polyurethane enameled copper wire.
And S6, conveying the NR inductor semi-finished product obtained in the step S4 to a soldering mechanism, and soldering the coil pins and the electrodes in the electrode grooves together through a tin wire by the soldering mechanism, wherein the soldering temperature is 390 ℃, and the soldering time is 2S.
The raw materials of the tin wire comprise rosin, rosin methyl ester, glutaric acid, succinic acid, sebacic acid and adipic acid. The weight portion of rosin is 98 portions, the weight portion of rosin methyl ester is 3.7 portions, the weight portion of glutaric acid is 0.44 portions, the weight portion of succinic acid is 0.5 portions, the weight portion of sebacic acid is 0.3 portions, and the weight portion of adipic acid is 0.3 portions.
In this embodiment, step S6 specifically includes the following steps:
conveying the NR inductor semi-finished product obtained in the step S4 to a soldering station of a soldering mechanism;
conveying the tin wire into an electrode groove of the magnetic core through a tin wire conveying assembly of the tin soldering mechanism;
and heating and melting the tin wire by a tin soldering iron assembly of the tin soldering mechanism so as to solder the terminal pins of the coil and the electrodes in the electrode grooves.
The length of the tin wire in the electrode groove is preferably 0.5-1 times of the length of the electrode, and the length of the tin wire in the electrode groove can be set according to actual conditions.
Further, in step S6, the halogen content of the tin wire is within 6000 PPM.
And S8, conveying the NR inductor semi-finished product obtained in the step S6 to a gluing mechanism, and gluing the coil by the gluing mechanism to coat the coil with glue.
And S10, conveying the NR inductor semi-finished product obtained in the step S8 to baking equipment, and baking the NR inductor semi-finished product through the baking equipment to cure the glue. Preferably, the toasting device is an oven. The baking time is 0.5 hour, and the baking temperature is 80-120 ℃.
And S12, cleaning and drying the NR inductor semi-finished product after the step S10 is finished, so that an NR inductor finished product is obtained.
The invention can greatly reduce the temperature and time of soldering tin, reduce the operation difficulty and ensure the reliability of an NR inductance product by winding the P180 improved polyurethane enameled copper wire on the magnetic core, has the characteristics of low activity and the like by adopting the tin wire of which the raw materials comprise rosin, rosin methyl ester, glutaric acid, succinic acid, sebacic acid and adipic acid, does not contain chlorine components, does not conduct heat to a coil when the tin wire is molten in the soldering process, does not damage the coil, further ensures the reliability of the NR inductance, improves the production efficiency and reduces the production cost.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A manufacturing method of an NR inductor is characterized by comprising the following steps:
s2, conveying the magnetic core to a winding mechanism through a feeding mechanism;
s4, winding an enameled copper wire on the magnetic core through a winding mechanism to form a coil, so as to obtain an NR inductance semi-finished product, wherein a stitch of the coil is arranged in an electrode groove of the magnetic core; the enameled copper wire is a P180 modified polyurethane enameled copper wire;
s6, conveying the NR inductor semi-finished product obtained in the step S4 to a soldering tin mechanism, and soldering the coil pins of the coil and the electrodes in the electrode grooves together through tin wires by the soldering tin mechanism, wherein the soldering temperature is 360-390 ℃, and the soldering time is 1.5-2S;
the tin wire comprises raw materials of rosin, rosin methyl ester, glutaric acid, succinic acid, sebacic acid and adipic acid, wherein the rosin accounts for 94-98 parts by weight, the rosin methyl ester accounts for 3.3-3.7 parts by weight, the glutaric acid accounts for 0.04-0.44 part by weight, the succinic acid accounts for 0.1-0.5 part by weight, the sebacic acid accounts for 0.1-0.3 part by weight, and the adipic acid accounts for 0.1-0.3 part by weight;
s8, conveying the NR inductor semi-finished product obtained in the step S6 to a gluing mechanism, and gluing the coil through the gluing mechanism to coat the coil with glue;
s10, conveying the NR inductor semi-finished product obtained in the step S8 to baking equipment, and baking the NR inductor semi-finished product through the baking equipment to cure glue;
and S12, cleaning and drying the NR inductor semi-finished product after the step S10 is finished, so that an NR inductor finished product is obtained.
2. The method for manufacturing the NR inductor according to claim 1, wherein in step S6, the rosin is 96 parts by weight, the rosin methyl ester is 3.5 parts by weight, the glutaric acid is 0.24 parts by weight, the succinic acid is 0.3 parts by weight, the sebacic acid is 0.2 parts by weight, and the adipic acid is 0.2 parts by weight.
3. The method for manufacturing an NR inductor according to claim 1, wherein in step S6, the soldering temperature is 375 ℃ and the soldering time is 1.8S.
4. The method for manufacturing an NR inductor according to claim 1, wherein in step S6, the tin wire has a halogen content of 6000PPM or less.
5. The method for manufacturing the NR inductor according to claim 1, wherein the step S6 specifically includes the steps of:
conveying the NR inductor semi-finished product obtained in the step S4 to a soldering station of a soldering mechanism;
conveying the tin wire into an electrode groove of the magnetic core through a tin wire conveying assembly of the tin soldering mechanism;
and heating and melting the tin wire by a tin soldering iron assembly of the tin soldering mechanism so as to solder the terminal pins of the coil and the electrodes in the electrode grooves.
6. The method for manufacturing the NR inductor of claim 1, wherein in step S10, the baking time is 0.5 hour, and the baking temperature is 80 to 120 ℃.
7. An NR inductor, wherein the NR inductor is manufactured by the manufacturing method of any one of claims 1 to 6.
8. The tin wire is characterized in that raw materials of the tin wire comprise 94-98 parts by weight of rosin, 3.3-3.7 parts by weight of rosin methyl ester, 0.04-0.44 part by weight of glutaric acid, 0.1-0.5 part by weight of succinic acid, 0.1-0.3 part by weight of sebacic acid and 0.1-0.3 part by weight of adipic acid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111129987.3A CN114005663A (en) | 2021-09-26 | 2021-09-26 | NR inductor, tin wire and manufacturing method of NR inductor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111129987.3A CN114005663A (en) | 2021-09-26 | 2021-09-26 | NR inductor, tin wire and manufacturing method of NR inductor |
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