CN111009357B - Manufacturing process of oxidation-resistant tin whisker-resistant FFC wire - Google Patents
Manufacturing process of oxidation-resistant tin whisker-resistant FFC wire Download PDFInfo
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- CN111009357B CN111009357B CN202010044634.2A CN202010044634A CN111009357B CN 111009357 B CN111009357 B CN 111009357B CN 202010044634 A CN202010044634 A CN 202010044634A CN 111009357 B CN111009357 B CN 111009357B
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 230000003647 oxidation Effects 0.000 title claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000005491 wire drawing Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000003064 anti-oxidating effect Effects 0.000 claims abstract description 7
- 238000000137 annealing Methods 0.000 claims abstract description 6
- 239000003755 preservative agent Substances 0.000 claims abstract description 6
- 230000002335 preservative effect Effects 0.000 claims abstract description 6
- 238000002791 soaking Methods 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 84
- 238000005406 washing Methods 0.000 claims description 30
- 235000006408 oxalic acid Nutrition 0.000 claims description 28
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 26
- 229920001971 elastomer Polymers 0.000 claims description 25
- 238000009713 electroplating Methods 0.000 claims description 23
- 239000002904 solvent Substances 0.000 claims description 23
- 239000003292 glue Substances 0.000 claims description 22
- 239000003595 mist Substances 0.000 claims description 18
- 239000011265 semifinished product Substances 0.000 claims description 18
- 238000007747 plating Methods 0.000 claims description 15
- 239000000047 product Substances 0.000 claims description 15
- 229910052759 nickel Inorganic materials 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 229920002379 silicone rubber Polymers 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 6
- 239000004945 silicone rubber Substances 0.000 claims description 6
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 229920001225 polyester resin Polymers 0.000 claims description 5
- 239000004645 polyester resin Substances 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
- H01B13/002—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment for heat extraction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/30—Drying; Impregnating
Abstract
The invention discloses an anti-oxidation tin whisker-resistant FFC wire manufacturing process, which comprises the following steps: soaking pure copper in a wire drawing liquid, drawing the pure copper through a plurality of wire drawing eye dies, performing heat treatment and annealing on the drawn pure copper, and then winding the pure copper wire; step two: preparing the coiled pure copper wires into semi-finished FFC wires with different specifications according to requirements, baking the FFC wires for 1.5-2.5 h at the temperature of 100-160 ℃, and performing the third step: drying the semi-finished FFC wire rod, and then carrying out OSP (organic solderability preservative) process treatment on the surface of the semi-finished FFC wire rod; the invention relates to the technical field of FFC wire manufacturing processes. The main manufacturing processes in the manufacturing process of the oxidation-resistant tin whisker-resistant FFC wire rod are all in a high-temperature environment, the length of tin whiskers can be effectively inhibited, the proportion of long tin whiskers is small, the length of the tin whiskers can be controlled, the length of the tin whiskers can be effectively inhibited below 50 micrometers, and electronic short circuit can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of FFC wire manufacturing processes, in particular to an anti-oxidation tin whisker-proof FFC wire manufacturing process.
Background
FFC wire rod, flexible flat cable promptly, it is one kind with PET insulating material and extremely thin tin-plated flat copper line, through the novel data cable that high-tech automation equipment production line pressfitting formed, have soft, bending folding at will, thickness is thin, small, connect simple, dismantle advantages such as convenient, the easy electromagnetic shield of solving. The number and the spacing of the wires can be selected at will, so that the connection is more convenient, the size of an electronic product is greatly reduced, the production cost is reduced, the production efficiency is improved, and the wire is most suitable for being used as a data transmission cable between a mobile part and a main board, between a PCB and the PCB and in miniaturized electrical equipment.
Chinese patent discloses an anti-aging FFC wire (publication number: CN 106128581B), which comprises a first insulating glue layer, a copper wire, a reinforcing plate and a second insulating glue layer; the first insulating glue layer is arranged on the upper surface of the copper wire, and the reinforcing plate is arranged on the lower surface of the copper wire and positioned at the right end part of the copper wire; the second insulating glue layer comprises a first attaching part, an inclined part extending downwards along the right end part of the first attaching part, and a second attaching part horizontally extending rightwards along the right end part of the inclined part; the first attaching part is arranged on the lower surface of the copper wire, and an accommodating space is defined by the upper surface of the second attaching part, the right end surface of the first attaching part and the lower surface of the copper wire; the stiffening plate sets up in the accommodation space, the upper surface of stiffening plate and the lower surface contact of copper line, the upper surface contact of its lower surface and second laminating portion.
The conventional FFC is produced by tinned copper wires, the produced product has the problems that wire mouths are easy to oxidize, the proportion of long tin whiskers of the FFC is large, the tin whiskers cause serious problems in electronic components, the tin whiskers can cause electronic short circuits, the tin whiskers can damage release from the bottom layer of the FFC to cause mechanical damage, and the length of the tin whiskers in the prior production process is uncontrollable, so that hidden troubles exist in the product.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an anti-oxidation tin whisker-resistant FFC wire manufacturing process, which solves the problems that the conventional FFC is produced by a tinned copper wire, the produced product has the following problems that a wire port is easy to oxidize, the ratio of long tin whiskers of the FFC is large, the tin whiskers can cause serious problems in electronic components, the tin whiskers can cause electronic short circuit, the tin whiskers can destroy the release from the bottom layer of the FFC to cause mechanical damage, and the length of the tin whiskers in the prior production process is uncontrollable and has hidden danger of the product.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a manufacturing process of an anti-oxidation tin whisker-resistant FFC wire rod comprises the following steps:
the method comprises the following steps: soaking pure copper in a wire drawing liquid, drawing the pure copper through a plurality of wire drawing eye dies, performing heat treatment and annealing on the drawn pure copper, and then winding the pure copper wire;
step two: preparing the coiled pure copper wire into semi-finished FFC wires with different specifications according to requirements, baking the FFC wires at the temperature of 100-160 ℃ for 1.5-2.5 h, then cooling and flushing by using an oxalic acid solvent, and collecting the oxalic acid solvent;
step three: drying the semi-finished FFC wire rod, and then carrying out OSP (organic solderability preservative) process treatment on the surface of the semi-finished FFC wire rod;
step four: performing nickel plating treatment on one end of the semi-finished FFC wire rod, then performing countercurrent washing by using the oxalic acid solvent collected in the step two as a washing solution, and then performing electroplating mist tin treatment on the washed part;
step five: repeating the processing method of the fourth step, carrying out nickel plating and tin mist electroplating treatment on the other end of the semi-finished FFC wire rod, and then placing the electroplated semi-finished FFC wire rod in a storage box for maintenance for 20-24 hours;
step six: heating the maintained semi-finished FFC wire rod, then uniformly coating the insulating glue on the outer side of the FFC wire rod, and then cooling and solidifying the semi-finished FFC wire rod;
step seven: wrapping the semi-finished FFC wire rod by an insulating rubber sleeve, then heating the semi-finished FFC wire rod and the insulating rubber sleeve, pressurizing the semi-finished FFC wire rod on the outer side of the insulating rubber sleeve, and finally removing the overflowing insulating glue;
step eight: and adhering reinforcing plates on the outer surfaces of the two ends of the semi-finished FFC wire rod through insulating glue to obtain the finished FFC wire rod.
Preferably, the oxalic acid solution in the second step needs to be filtered and purified after being recovered.
Preferably, the drying treatment in the third step is performed by blowing hot air at 90-100 ℃, and the hot air needs to be filtered before blowing.
Preferably, when the storage tank in the fifth step is in use, the temperature inside the storage tank is 90-110 ℃.
Preferably, the insulating rubber sleeve is one or a mixture of more of ethylene propylene diene monomer, silicone rubber, natural rubber and methyl vinyl silicone rubber.
Preferably, the insulation paste overflowing in the seventh step is removed by manually wiping acetone.
Preferably, the reinforcing plate is a mixture product of saturated polyester resin, epoxy resin, acrylic resin and unsaturated polyester resin.
Preferably, the counter-current washing in the fourth step is three-stage counter-current washing, and the semi-finished product FFC needs to be dried before the tin fog electroplating treatment, and the semi-finished product FFC needs to be rotated simultaneously when the tin fog electroplating treatment is carried out.
(III) advantageous effects
The invention provides a technology for manufacturing an anti-oxidation tin whisker-proof FFC wire rod. The method has the following beneficial effects:
(1) the FFC wire rod manufacturing process comprises the steps of baking the FFC wire rod for 1.5-2.5 hours at the temperature of 100-160 ℃, then cooling and flushing by using an oxalic acid solvent, collecting the oxalic acid solvent, blowing by using hot air at the temperature of 90-100 ℃ in a drying treatment mode, filtering the hot air before blowing, carrying out nickel plating treatment on one end of a semi-finished FFC wire rod, then carrying out countercurrent washing by using the oxalic acid solvent collected in the step two as a washing solution, then carrying out electroplating tin mist treatment on the washed part, and then placing the electroplated semi-finished FFC wire rod in a storage box for maintenance for 20-24 hours, wherein the main manufacturing process is in a high-temperature environment, the length of tin whiskers can be effectively inhibited, the proportion of long tin whiskers is small, the length of the tin whiskers is controllable, and can be effectively inhibited below 50 mu m, it is possible to effectively prevent an electronic short circuit and to prevent a problem that a long tin whisker damages a release from the underlayer to cause a mechanical damage.
(2) The production process of the oxidation-resistant tin whisker-resistant FFC wire rod comprises the steps of collecting an oxalic acid solvent, carrying out nickel plating treatment on one end of a semi-finished FFC wire rod, then carrying out countercurrent washing by using the oxalic acid solvent collected in the step two as a washing liquid, filtering and purifying the oxalic acid solution in the step two after recovery, then uniformly coating an insulating glue on the outer side of the FFC wire rod, wrapping the semi-finished FFC wire rod with an insulating rubber sleeve, then heating the semi-finished FFC wire rod and the insulating rubber sleeve, and pressurizing the semi-finished FFC wire rod on the outer side of the insulating rubber sleeve, wherein the oxalic acid solvent can be repeatedly used, the production cost of the FFC wire rod can be reduced, meanwhile, the processing methods of the insulating glue and the insulating rubber sleeve in the FFC wire rod are simple, the high-temperature melting treatment is adopted, the production cost can be effectively controlled, and during processing, can effectively inhibit the generation of tin whiskers in the tin plating layer.
(3) The FFC wire manufacturing process comprises the following steps of adopting three-stage countercurrent washing as countercurrent washing, drying a semi-finished product FFC before tin mist electroplating treatment, simultaneously rotating the semi-finished product FFC during tin mist electroplating, drying the semi-finished product FFC, then carrying out OSP process treatment on the surface of the semi-finished product FFC wire, carrying out nickel plating treatment on one end of the semi-finished product FFC wire, and then carrying out countercurrent washing by using the oxalic acid solvent collected in the step two as a washing liquid.
Drawings
FIG. 1 is a cross-sectional view of the FFC wire of the present invention;
in the figure, 1, a pure copper conductor; 2. an insulating rubber sleeve; 3. tin plating; 4. a reinforcing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a technical solution: a manufacturing process of an anti-oxidation tin whisker-resistant FFC wire rod comprises the following steps:
EXAMPLE 1
The method comprises the following steps: soaking pure copper in a wire drawing liquid, drawing the pure copper through a plurality of wire drawing eye dies, performing heat treatment and annealing on the drawn pure copper, and then winding the pure copper wire;
step two: preparing the coiled pure copper wire into semi-finished FFC wires with different specifications according to requirements, baking the FFC wires at the temperature of 120 ℃ for 1.5h, then cooling and washing by using an oxalic acid solvent, collecting the oxalic acid solvent, and filtering and purifying the oxalic acid solution after recovery;
step three: drying the semi-finished FFC wire rod, blowing by using hot air at 90 ℃, filtering the hot air before blowing, and then performing OSP (organic solderability preservative) process treatment on the surface of the semi-finished FFC wire rod;
step four: performing nickel plating treatment on one end of the FFC wire rod of the semi-finished product, performing countercurrent washing by using the oxalic acid solvent collected in the step two as a washing solution, wherein the countercurrent washing is three-stage countercurrent washing, performing tin mist electroplating treatment on the washed part, drying the FFC of the semi-finished product before the tin mist electroplating treatment, and rotating the FFC of the semi-finished product during tin mist electroplating;
step five: repeating the processing method of the fourth step, carrying out nickel plating and electroplating fog tin treatment on the other end of the semi-finished FFC wire rod, and then placing the electroplated semi-finished FFC wire rod in a storage box for maintenance for 20 hours, wherein the temperature inside the storage box is 90 ℃;
step six: heating the maintained semi-finished FFC wire rod, then uniformly coating the insulating glue on the outer side of the FFC wire rod, and then cooling and solidifying the semi-finished FFC wire rod;
step seven: wrapping the semi-finished FFC wire rod by an insulating rubber sleeve, wherein the insulating rubber sleeve is a mixture of ethylene propylene diene monomer, natural rubber and methyl vinyl silicone rubber, then heating the semi-finished FFC wire rod and the insulating rubber sleeve, pressurizing the semi-finished FFC wire rod on the outer side of the insulating rubber sleeve, and finally removing the overflowing insulating glue by adopting a method of manually wiping acetone;
step eight: and adhering reinforcing plates to the outer surfaces of two ends of the semi-finished FFC wire through insulating glue to obtain the finished FFC wire, wherein the reinforcing plates are a mixture product of saturated polyester resin, epoxy resin, acrylic resin and unsaturated polyester resin.
EXAMPLE 2
The method comprises the following steps: soaking pure copper in a wire drawing liquid, drawing the pure copper through a plurality of wire drawing eye dies, performing heat treatment and annealing on the drawn pure copper, and then winding the pure copper wire;
step two: preparing the coiled pure copper wire into semi-finished FFC wires with different specifications according to requirements, baking the FFC wires at the temperature of 160 ℃ for 2.5 hours, then cooling and flushing by using an oxalic acid solvent, collecting the oxalic acid solvent, and filtering and purifying the oxalic acid solution after recovery;
step three: drying the semi-finished FFC wire rod, blowing by using hot air at 100 ℃, filtering the hot air before blowing, and then performing OSP (organic solderability preservative) process treatment on the surface of the semi-finished FFC wire rod;
step four: performing nickel plating treatment on one end of the FFC wire rod of the semi-finished product, performing countercurrent washing by using the oxalic acid solvent collected in the step two as a washing solution, wherein the countercurrent washing is three-stage countercurrent washing, performing tin mist electroplating treatment on the washed part, drying the FFC of the semi-finished product before the tin mist electroplating treatment, and rotating the FFC of the semi-finished product during tin mist electroplating;
step five: repeating the processing method of the fourth step, carrying out nickel plating and electroplating fog tin treatment on the other end of the semi-finished FFC wire rod, and then placing the electroplated semi-finished FFC wire rod in a storage box for maintenance for 24 hours, wherein the temperature inside the storage box is 110 ℃;
step six: heating the maintained semi-finished FFC wire rod, then uniformly coating the insulating glue on the outer side of the FFC wire rod, and then cooling and solidifying the semi-finished FFC wire rod;
step seven: wrapping the semi-finished FFC wire rod by an insulating rubber sleeve, wherein the insulating rubber sleeve is a mixture of ethylene propylene diene monomer and methyl vinyl silicone rubber, heating the semi-finished FFC wire rod and the insulating rubber sleeve, pressurizing the semi-finished FFC wire rod on the outer side of the insulating rubber sleeve, and removing overflowing insulating glue by manually wiping acetone;
step eight: and adhering reinforcing plates to the outer surfaces of two ends of the semi-finished FFC wire through insulating glue to obtain the finished FFC wire, wherein the reinforcing plates are a mixture product of saturated polyester resin, epoxy resin, acrylic resin and unsaturated polyester resin.
EXAMPLE 3
The method comprises the following steps: soaking pure copper in a wire drawing liquid, drawing the pure copper through a plurality of wire drawing eye dies, performing heat treatment and annealing on the drawn pure copper, and then winding the pure copper wire;
step two: preparing the coiled pure copper wire into semi-finished FFC wires with different specifications according to requirements, baking the FFC wires at the temperature of 120 ℃ for 2 hours, then cooling and washing by using an oxalic acid solvent, collecting the oxalic acid solvent, and filtering and purifying the oxalic acid solution after recovery;
step three: drying the semi-finished FFC wire rod, blowing by using hot air at 95 ℃, filtering the hot air before blowing, and then performing OSP (organic solderability preservative) process treatment on the surface of the semi-finished FFC wire rod;
step four: performing nickel plating treatment on one end of the FFC wire rod of the semi-finished product, performing countercurrent washing by using the oxalic acid solvent collected in the step two as a washing solution, wherein the countercurrent washing is three-stage countercurrent washing, performing tin mist electroplating treatment on the washed part, drying the FFC of the semi-finished product before the tin mist electroplating treatment, and rotating the FFC of the semi-finished product during tin mist electroplating;
step five: repeating the processing method of the fourth step, carrying out nickel plating and electroplating fog tin treatment on the other end of the semi-finished FFC wire rod, and then placing the electroplated semi-finished FFC wire rod in a storage box for maintenance for 22 hours, wherein the temperature in the storage box is 100 ℃;
step six: heating the maintained semi-finished FFC wire rod, then uniformly coating the insulating glue on the outer side of the FFC wire rod, and then cooling and solidifying the semi-finished FFC wire rod;
step seven: wrapping the semi-finished FFC wire by an insulating rubber sleeve, wherein the insulating rubber sleeve is a mixture of ethylene propylene diene monomer, silicon rubber and methyl vinyl silicone rubber, heating the semi-finished FFC wire and the insulating rubber sleeve, pressurizing the semi-finished FFC wire on the outer side of the insulating rubber sleeve, and removing overflowing insulating glue by manually wiping acetone;
step eight: and adhering reinforcing plates to the outer surfaces of two ends of the semi-finished FFC wire through insulating glue to obtain the finished FFC wire, wherein the reinforcing plates are a mixture product of saturated polyester resin, epoxy resin, acrylic resin and unsaturated polyester resin.
Example of the implementation
A certain manufacturer adopts the manufacturing process to produce the FFC wire, three batches of products are produced according to the three implementation columns in the invention, after inspection, the products all accord with national standard specifications, meanwhile, the manufacturing cost of the three batches of products is lower than that of products with the same specification and quality in the market during accounting, in addition, through measurement, the lengths of tin whiskers in the three batches of products are respectively 35 microns, 25 microns and 40 microns, which respectively correspond to the implementation column 1, the implementation column 2 and the implementation example 3, and through actual production, the effect of the manufacturing process by the implementation example 2 is better.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A technology for manufacturing an anti-oxidation tin whisker-resistant FFC wire rod is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: soaking pure copper in a wire drawing liquid, drawing the pure copper through a plurality of wire drawing eye dies, performing heat treatment and annealing on the drawn pure copper, and then winding the pure copper wire;
step two: preparing the coiled pure copper wire into semi-finished FFC wires with different specifications according to requirements, baking the FFC wires at the temperature of 100-160 ℃ for 1.5-2.5 h, then cooling and flushing by using an oxalic acid solvent, and collecting the oxalic acid solvent;
step three: drying the semi-finished FFC wire rod, and then carrying out OSP (organic solderability preservative) process treatment on the surface of the semi-finished FFC wire rod;
step four: performing nickel plating treatment on one end of the semi-finished FFC wire rod, then performing countercurrent washing by using the oxalic acid solvent collected in the step two as a washing solution, and then performing electroplating mist tin treatment on the washed part;
step five: repeating the processing method of the fourth step, carrying out nickel plating and tin mist electroplating treatment on the other end of the semi-finished FFC wire rod, and then placing the electroplated semi-finished FFC wire rod in a storage box for maintenance for 20-24 hours;
step six: heating the maintained semi-finished FFC wire rod, then uniformly coating the insulating glue on the outer side of the FFC wire rod, and then cooling and solidifying the semi-finished FFC wire rod;
step seven: wrapping the semi-finished FFC wire rod by an insulating rubber sleeve, then heating the semi-finished FFC wire rod and the insulating rubber sleeve, pressurizing the semi-finished FFC wire rod on the outer side of the insulating rubber sleeve, and finally removing the overflowing insulating glue;
step eight: and adhering reinforcing plates on the outer surfaces of the two ends of the semi-finished FFC wire rod through insulating glue to obtain the finished FFC wire rod.
2. The FFC wire manufacturing process for resisting oxidation and tin whisker of claim 1 is characterized in that: and the oxalic acid solvent in the second step needs to be filtered and purified after being recovered.
3. The FFC wire manufacturing process for resisting oxidation and tin whisker of claim 1 is characterized in that: the drying treatment in the third step is carried out by blowing hot air at 90-100 ℃, and the hot air needs to be filtered before blowing.
4. The FFC wire manufacturing process for resisting oxidation and tin whisker of claim 1 is characterized in that: when the storage box in the fifth step is used, the temperature inside the storage box is 90-110 ℃.
5. The FFC wire manufacturing process for resisting oxidation and tin whisker of claim 1 is characterized in that: the insulating rubber sleeve is one or a mixture of more of ethylene propylene diene monomer, silicon rubber, natural rubber and methyl vinyl silicone rubber.
6. The FFC wire manufacturing process for resisting oxidation and tin whisker of claim 1 is characterized in that: and removing the insulation glue overflowing in the seventh step by adopting a method of manually wiping acetone.
7. The FFC wire manufacturing process for resisting oxidation and tin whisker of claim 1 is characterized in that: the reinforcing plate is a mixture product of saturated polyester resin, epoxy resin, acrylic resin and unsaturated polyester resin.
8. The FFC wire manufacturing process for resisting oxidation and tin whisker of claim 1 is characterized in that: the countercurrent washing in the fourth step is three-stage countercurrent washing, and meanwhile, before the tin mist electroplating treatment, the semi-finished product FFC needs to be dried, and the semi-finished product FFC needs to be rotated simultaneously when the tin mist electroplating is carried out.
Priority Applications (1)
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1722314A (en) * | 2004-07-16 | 2006-01-18 | 日本先锋公司 | Flexible flat cable and method of manufacturing the same |
| JP2007287417A (en) * | 2006-04-14 | 2007-11-01 | Ricoh Co Ltd | Flexible flat-cable, flexible flat-cable connection method, liquid discharge head using flexible flat-cable connection method, and image forming apparatus |
| CN102082001A (en) * | 2009-11-30 | 2011-06-01 | 住友电气工业株式会社 | Flat cable and manufacturing method thereof |
| CN102194552A (en) * | 2010-12-29 | 2011-09-21 | 今皓光电（昆山）有限公司 | Flexible flat cable manufacturing process |
| JP2014032907A (en) * | 2012-08-06 | 2014-02-20 | Ricoh Co Ltd | Flexible flat cable and connector applied to the same |
| CN106128581A (en) * | 2016-08-30 | 2016-11-16 | 佛山市顺德区禾惠电子有限公司 | A kind of aging resistance FFC wire rod |
| CN107254694A (en) * | 2017-05-24 | 2017-10-17 | 江苏金坤科技有限公司 | A kind of tin plating electrolyte and the efficient tin plating technique based on the tin plating electrolyte |
| CN107570549A (en) * | 2017-07-27 | 2018-01-12 | 佛山市顺德区禾惠电子有限公司 | A kind of processing technology of FFC wire rods flat copper wire |
| CN108193241A (en) * | 2017-12-18 | 2018-06-22 | 厦门金越电器有限公司 | A kind of tin plating method of copper or copper alloy parts |
| CN108496228A (en) * | 2016-09-20 | 2018-09-04 | 古河电气工业株式会社 | Flat cable, the manufacturing method of flat cable and the rotary connector including flat cable |
| CN208589282U (en) * | 2018-06-12 | 2019-03-08 | 江阴六环合金线有限公司 | A kind of flexible flat cable core |
| CN109686503A (en) * | 2019-02-22 | 2019-04-26 | 今皓光电（昆山）有限公司 | A kind of high-temperature flexible flat cable and processing technology |
| CN110070960A (en) * | 2019-04-15 | 2019-07-30 | 苏州新亚电通有限公司 | A kind of center 0.3mm away from flexible flat cable and its manufacturing method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009231065A (en) * | 2008-03-24 | 2009-10-08 | Fujikura Ltd | Tin-system plated rectangular conductor and flexible flat cable |
| JP5578443B2 (en) * | 2011-04-21 | 2014-08-27 | 日立金属株式会社 | Multi-core shielded flat cable and method of manufacturing multi-core shielded flat cable |
| JP6168234B2 (en) * | 2014-05-13 | 2017-07-26 | 株式会社村田製作所 | Terminal joining method and terminal joining structure |
| JP6801306B2 (en) * | 2016-08-31 | 2020-12-16 | 住友電気工業株式会社 | Shielded flat cable |
-
2020
- 2020-01-16 CN CN202010044634.2A patent/CN111009357B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1722314A (en) * | 2004-07-16 | 2006-01-18 | 日本先锋公司 | Flexible flat cable and method of manufacturing the same |
| JP2007287417A (en) * | 2006-04-14 | 2007-11-01 | Ricoh Co Ltd | Flexible flat-cable, flexible flat-cable connection method, liquid discharge head using flexible flat-cable connection method, and image forming apparatus |
| CN102082001A (en) * | 2009-11-30 | 2011-06-01 | 住友电气工业株式会社 | Flat cable and manufacturing method thereof |
| CN102194552A (en) * | 2010-12-29 | 2011-09-21 | 今皓光电（昆山）有限公司 | Flexible flat cable manufacturing process |
| JP2014032907A (en) * | 2012-08-06 | 2014-02-20 | Ricoh Co Ltd | Flexible flat cable and connector applied to the same |
| CN106128581A (en) * | 2016-08-30 | 2016-11-16 | 佛山市顺德区禾惠电子有限公司 | A kind of aging resistance FFC wire rod |
| CN108496228A (en) * | 2016-09-20 | 2018-09-04 | 古河电气工业株式会社 | Flat cable, the manufacturing method of flat cable and the rotary connector including flat cable |
| CN107254694A (en) * | 2017-05-24 | 2017-10-17 | 江苏金坤科技有限公司 | A kind of tin plating electrolyte and the efficient tin plating technique based on the tin plating electrolyte |
| CN107570549A (en) * | 2017-07-27 | 2018-01-12 | 佛山市顺德区禾惠电子有限公司 | A kind of processing technology of FFC wire rods flat copper wire |
| CN108193241A (en) * | 2017-12-18 | 2018-06-22 | 厦门金越电器有限公司 | A kind of tin plating method of copper or copper alloy parts |
| CN208589282U (en) * | 2018-06-12 | 2019-03-08 | 江阴六环合金线有限公司 | A kind of flexible flat cable core |
| CN109686503A (en) * | 2019-02-22 | 2019-04-26 | 今皓光电（昆山）有限公司 | A kind of high-temperature flexible flat cable and processing technology |
| CN110070960A (en) * | 2019-04-15 | 2019-07-30 | 苏州新亚电通有限公司 | A kind of center 0.3mm away from flexible flat cable and its manufacturing method |
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