CN110729084A - Processing technology of copper wire - Google Patents
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- CN110729084A CN110729084A CN201910943233.8A CN201910943233A CN110729084A CN 110729084 A CN110729084 A CN 110729084A CN 201910943233 A CN201910943233 A CN 201910943233A CN 110729084 A CN110729084 A CN 110729084A
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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
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/141—Amines; Quaternary ammonium compounds
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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
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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
- H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables
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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
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
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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
- 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
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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
- H01B13/30—Drying; Impregnating
Abstract
The invention discloses a processing technology of a copper wire, relates to the technical field of copper wire production and processing, and solves the problem that the overall quality of the copper wire is reduced because the surface of the copper wire is easily oxidized in the processing process. A processing technology of a copper wire comprises the following steps: step one, straightening and correcting; step two, stretching; step three, annealing treatment; step four, water-cooling and wiping; and step five, tinning and drying. According to the processing technology of the copper wire, nitrogen is filled into an annealing furnace for protection, so that the copper wire is not easy to oxidize, the annealed copper wire is cooled by a water cooling device and then is immersed in the antioxidant liquid, and the excessive antioxidant liquid on the surface of the copper wire is removed by cotton cloth containing the antioxidant liquid, so that the surface of the finished copper wire after tinning is free of an oxide layer and has high quality.
Description
Technical Field
The invention relates to the technical field of copper wire production and processing, in particular to a processing technology of a copper wire.
Background
Copper wires are used as leads, have good conductivity and are widely used for manufacturing electric wires, cables, electric brushes and the like; the heat conductivity is good, and the magnetic instrument and the instrument which need antimagnetic interference, such as a compass, an aviation instrument and the like, are commonly manufactured; has excellent plasticity, is easy to be processed by hot pressing and cold pressing, and can be made into copper materials such as pipes, bars, wires, strips, belts, plates, foils and the like.
The Chinese invention patent application with the publication number of CN107262540A discloses a copper wire drawing and annealing process, which is used for horizontally correcting a copper wire to be processed; cleaning and drying the copper wire; vertically correcting the copper wire; sending the mixture into an induction annealing device for annealing; after annealing, the copper wire enters a quenching cooling device; sending the mixture into a drying device for drying; carrying out primary stretching pretreatment on the dried copper wire; carrying out primary stretching; carrying out secondary stretching pretreatment on the copper wire subjected to primary stretching; and (4) carrying out secondary stretching on the copper wire subjected to secondary stretching pretreatment, thereby realizing multiple continuous stretching.
In the above application, through continuous induction annealing, the work hardening of copper line has been eliminated, the plasticity of copper line has been recovered, provides the condition for follow-up continuous stretching, but the copper line is at the in-process of annealing, quenching back stoving, and the surface of copper line is easily by the oxidation, leads to the copper line finished product that obtains, and its whole quality reduces to some extent, consequently, needs to propose a new scheme and solves above-mentioned problem.
Disclosure of Invention
Aiming at the problem that the overall quality of a copper wire is reduced because the surface of the copper wire is easily oxidized in the processing process in the prior art, the invention aims to provide a processing technology of the copper wire so as to solve the technical problem, ensure that the copper wire is not easily oxidized in the processing process and obtain a finished product with higher quality.
In order to achieve the purpose, the invention provides the following technical scheme:
a processing technology of a copper wire comprises the following steps:
straightening and correcting, namely correcting a copper wire raw material by a middle drawing machine to ensure that the copper wire raw material is smooth and has no bending;
stretching, namely feeding the straightened copper wire raw material into a small drawing machine with drawing oil to reduce the diameter of the copper wire raw material to obtain a copper wire;
step three, annealing treatment, namely heating the annealing furnace to 230-260 ℃, vacuumizing, introducing nitrogen, and then conveying the copper wire into the annealing furnace for annealing treatment;
step four, water cooling and wiping, namely cooling the annealed copper wire by a water cooling device, immersing the copper wire in antioxidant liquid, and removing redundant antioxidant liquid on the surface of the copper wire by using cotton cloth containing the antioxidant liquid;
and step five, tinning and drying, namely preheating and drying the copper wire subjected to antioxidant solution removal under the protection of nitrogen, tinning in a tinning mold, drying by hot air, and naturally cooling to obtain a finished copper wire.
By adopting the technical scheme, the nitrogen is filled into the annealing furnace, so that the interference of oxygen to the copper wire in the annealing process is isolated, and the annealed copper wire is cooled by the water cooling device and then is immersed in the antioxidant liquid, so that a layer of antioxidant liquid is adhered to the surface of the copper wire, and the surface of the finished copper wire is not easily oxidized; and the cotton cloth containing the antioxidant liquid is used for removing the redundant antioxidant liquid on the surface of the copper wire, so that the tin plating treatment of the copper wire is facilitated, the redundant antioxidant liquid on the copper wire can be recovered, and the method has good economic benefit. So set up, make the copper wire difficult for by the oxidation in the course of working, and have higher quality.
Further preferably, the antioxidant liquid comprises the following components in parts by weight:
10-15 parts of base oil;
15-30 parts of a lubricant;
40-60 parts of castor oil ester;
15-20 parts of vulcanized cottonseed oil;
5-10 parts of a metal antioxidant;
20-30 parts of distilled water.
By adopting the technical scheme, the base oil has good thermal stability and oxygen resistance and good harmonicity; the castor oil ester has good hydrolysis resistance; the vulcanized cottonseed oil has good adhesiveness and abrasion resistance; the base oil, the castor oil ester and the sulfurized cottonseed oil are compounded, and the metal antioxidant and the lubricant are supplemented, so that the obtained antioxidant liquid has good oxidation resistance, can be well attached to the copper wire, and plays a good role in protecting the copper wire.
Further preferably, the metal antioxidant comprises the following components in parts by weight:
0.9-1.5 parts of benzotriazole;
0.4-1.2 parts of sodium benzoate;
1-2 parts of triethanolamine;
2-4 parts of ethanol.
By adopting the technical scheme, benzotriazole can form covalent bonds and coordination bonds with copper atoms, and can be replaced by chain polymers mutually to form a multilayer protective film on the surface of a copper wire; the sodium benzoate has good antibacterial and antiseptic effects; triethanolamine is a good slow-release agent; and the ethanol is used as a solvent, so that benzotriazole, sodium benzoate and triethanolamine are mixed to form a stable compound mixed system, the obtained metal antioxidant has a good protection effect on metal, and the antioxidant liquid plays a good and stable role in the using process.
More preferably, the lubricant is selected from any one or more of silicon oil, silicate ester and phosphate ester.
By adopting the technical scheme, the silicone oil, the silicate ester and the phosphate ester are good lubricants, the damage of the copper wire in the subsequent processing process can be reduced, the chemical stability is good, the corrosion to metal is avoided, and the mixed antioxidant liquid has good quality.
More preferably, in the third step, the drawing speed of the copper wire is 120-150 m/min.
By adopting the technical scheme, the traction speed is kept in the annealing treatment process of the copper wire, so that the copper wire is not easy to break under high-temperature heating, the stability of the copper wire in the processing process is ensured, the traction speed is 120-150m/min, the higher production efficiency of the whole processing technology can be ensured, and the whole applicability is good.
More preferably, in the third step, the time of the copper wire in the annealing furnace is 3-5 s.
By adopting the technical scheme, the time of the copper wire in the annealing furnace is 3-5s, so that the annealing furnace can achieve a good annealing effect on the copper wire, the copper wire is not easy to deform in the annealing process, and the whole processing technology is ensured to have higher production efficiency.
Preferably, the second step is specifically set to be stretching, the straightened copper wire raw material enters a small drawing machine with drawing oil, the diameter of the copper wire raw material is reduced, and polishing treatment is performed in the stretching process to obtain the copper wire.
Through adopting above-mentioned technical scheme, at tensile in-process, polish the processing to copper line raw materials, can get rid of original oxide and impurity on the copper line raw materials, make the copper wire that obtains have good quality, and polish the in-process and go on in the drawing oil, make the naked copper of back of polishing can not directly expose in the air, and then make the copper wire be difficult for by the oxidation, improved the off-the-shelf quality of copper line greatly.
Preferably, the fourth step is specifically set as water-cooling wiping, the annealed copper wire is cooled by a water-cooling device and then immersed in the antioxidant liquid, the excessive antioxidant liquid on the surface of the copper wire is removed by cotton cloth containing the antioxidant liquid, and the copper wire is blown and swept by cold air in the process.
Through adopting above-mentioned technical scheme, dry in-process at the water-cooling, sweep the copper wire with cold wind, not only can play good cooling effect to the copper wire after the annealing treatment, can also avoid leading to the later stage to need frequently change the cotton because of the more anti-oxidant liquid of adhesion on the copper wire, improved whole processing technology's stability, can obtain the copper wire finished product that the stable performance is good.
In summary, compared with the prior art, the invention has the following beneficial effects:
(1) after the annealed copper wire is cooled by a water cooling device, immersing the copper wire in antioxidant liquid to enable a layer of antioxidant liquid to be adhered to the surface of the copper wire, so that the surface of the finished copper wire is not easy to oxidize; the excessive antioxidant liquid on the surface of the copper wire is removed by the cotton cloth containing the antioxidant liquid, so that the excessive antioxidant liquid on the copper wire can be recovered, the tinning treatment of the copper wire is facilitated, the copper wire is not easily oxidized in the processing process, and the copper wire has high quality;
(2) in the stretching process, the copper wire raw material is polished, original oxides and impurities on the copper wire raw material can be removed, and the polishing process is carried out in wire drawing oil, so that bare copper after polishing can not be directly exposed in air, the copper wire is further prevented from being oxidized easily, and the quality of a finished copper wire product is greatly improved;
(3) in the water-cooling wiping process, the copper wire is swept by cold air, so that the stability of the whole processing technology is improved, and a copper wire finished product with stable and good performance can be obtained.
Drawings
FIG. 1 is a flow chart of the processing technique of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example 1: a processing technology of copper wires is characterized in that a copper wire raw material with the diameter of 1mm is processed into a finished copper wire with the diameter of 0.2mm, wherein the components in an antioxidant solution and corresponding parts by weight are shown in Table 1 and are prepared through the following steps:
straightening and correcting, namely correcting a copper wire raw material by a middle drawing machine to ensure that the copper wire raw material is smooth and has no bending;
stretching, namely feeding the straightened copper wire raw material into a small drawing machine with drawing oil to reduce the diameter of the copper wire raw material to obtain a copper wire;
step three, annealing treatment, namely heating the annealing furnace to 245 ℃, vacuumizing, introducing nitrogen, then conveying the copper wire into an annealing furnace for annealing treatment, wherein the traction speed of the copper wire is 135m/min, and the time of the copper wire in the annealing furnace is 4 s;
step four, water cooling and wiping, namely cooling the annealed copper wire by a water cooling device, immersing the copper wire in antioxidant liquid, and removing redundant antioxidant liquid on the surface of the copper wire by using cotton cloth containing the antioxidant liquid;
and step five, tinning and drying, namely preheating and drying the copper wire subjected to antioxidant solution removal under the protection of nitrogen, tinning in a tinning mold, drying by hot air, and naturally cooling to obtain a finished copper wire.
Note: the metal antioxidant in the antioxidant liquid in the above step comprises the following components in parts by weight: 1.2 parts of benzotriazole; 0.8 part of sodium benzoate; 1.5 parts of triethanolamine; 3 parts of ethanol; the lubricant is silicone oil.
Examples 2 to 3: the difference between the processing technology of a copper wire and the embodiment 1 is that the components of the antioxidant liquid and the corresponding parts by weight are shown in the table 1.
TABLE 1 Components and parts by weight of examples 1-3
Example 4: the difference between the processing technology of a copper wire and the embodiment 1 is that the metal antioxidant in the antioxidant solution in the above steps comprises the following components in parts by weight: 0.9 part of benzotriazole; 1.2 parts of sodium benzoate; 1 part of triethanolamine; and 4 parts of ethanol.
Example 5: the difference between the processing technology of a copper wire and the embodiment 1 is that the metal antioxidant in the antioxidant solution in the above steps comprises the following components in parts by weight: 1.5 parts of benzotriazole; 0.4 part of sodium benzoate; 2 parts of triethanolamine; and 2 parts of ethanol.
Example 6: the difference between the processing technology of a copper wire and the processing technology of the copper wire in the embodiment 1 is that silicate with equal mass is selected as the lubricant in the antioxidant liquid in the step.
Example 7: the difference between the processing technology of the copper wire and the processing technology of the embodiment 1 is that the lubricant in the antioxidant liquid in the step is a mixture of silicone oil, silicate ester and phosphate ester with the mass ratio of 1:1: 1.
Example 8: the difference between the processing technology of the copper wire and the embodiment 1 is that in the third step, the drawing speed of the copper wire is 150m/min, the time of the copper wire in an annealing furnace is 3s, and the temperature of the annealing furnace is 260 ℃.
Example 9: the difference between the processing technology of the copper wire and the embodiment 1 is that in the third step, the drawing speed of the copper wire is 120m/min, the time of the copper wire in an annealing furnace is 5s, and the temperature of the annealing furnace is 230 ℃.
Example 10: the processing technology of the copper wire is different from that of the embodiment 1 in that the step two is specifically set to be stretching, the straightened and corrected copper wire raw material enters a small drawing machine with drawing oil, the diameter of the copper wire raw material is reduced, polishing treatment is carried out in the stretching process, and the copper wire is obtained.
Example 11: the processing technology of the copper wire is different from that of the embodiment 1 in that the step four is specifically set as water cooling and wiping, the annealed copper wire is cooled by a water cooling device and then is immersed in the antioxidant liquid, the excessive antioxidant liquid on the surface of the copper wire is removed by cotton cloth containing the antioxidant liquid, and the copper wire is swept by cold air in the process.
Comparative example 1: the difference between the processing technology of the copper wire and the embodiment 1 is that the third step is specifically set as annealing treatment, the temperature of the annealing furnace is raised to 245 ℃, then the copper wire is sent into the annealing furnace for annealing treatment, the drawing speed of the copper wire is 135m/min, and the time of the copper wire in the annealing furnace is 4 s.
Comparative example 2: the processing technology of the copper wire is different from that of the embodiment 1 in that step four, water cooling and wiping are carried out, the annealed copper wire is cooled through a water cooling device, and then the excessive water on the surface of the copper wire is removed through cotton cloth.
Comparative example 3: the difference between the processing technology of the copper wire and the comparative example 2 is that the third step is specifically set as annealing treatment, the temperature of the annealing furnace is raised to 245 ℃, then the copper wire is sent into the annealing furnace for annealing treatment, the traction speed of the copper wire is 135m/min, and the time of the copper wire in the annealing furnace is 4 s.
Effect testing
Test samples: the finished copper wires obtained in examples 1 to 11 were used as test samples 1 to 11, and the finished copper wires obtained in comparative examples 1 to 3 were used as control samples 1 to 3.
The test method comprises the following steps: cutting 3cm of the test sample 1-11 and the control sample 1-3, detecting the component content, measuring whether the test sample 1-11 and the control sample 1-3 have copper oxide, and if so, measuring the content of the copper oxide and recording.
And (3) test results: the test results of the test samples 1 to 11 and the control samples 1 to 3 are shown in Table 2. As can be seen from Table 2, the test results of the test samples 1-3 and the comparison samples 1-3 are compared to obtain a comparison result, and after the annealed copper wire is cooled by a water cooling device, the copper wire is immersed in the antioxidant liquid, so that a layer of antioxidant liquid is adhered to the surface of the copper wire, and the surface of the finished copper wire is not easily oxidized; the annealing furnace is vacuumized and filled with nitrogen, so that the surface of the finished copper wire is not easily oxidized; and when the operations are applied together, the effect is better. The comparison of the test results of the test samples 1-3 and the test samples 1-9 can be obtained, the process parameter control set by the method is suitable for the application of the processing technology, and the finished copper wire has higher quality. The test results of the test samples 1-3 and the test sample 10 are compared, and the copper wire raw material is polished to remove the original oxides and impurities on the copper wire raw material, so that the copper wire is not easily oxidized. The test results of the test samples 1-3 and the test sample 11 are compared to obtain the finished product, the copper wire is blown and swept by cold air, the stability of the whole processing technology is improved, and the finished product of the copper wire with stable and good performance can be obtained.
TABLE 2 test results of test samples 1 to 11 and control samples 1 to 3
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. The processing technology of the copper wire is characterized by comprising the following steps:
straightening and correcting, namely correcting a copper wire raw material by a middle drawing machine to ensure that the copper wire raw material is smooth and has no bending;
stretching, namely feeding the straightened copper wire raw material into a small drawing machine with drawing oil to reduce the diameter of the copper wire raw material to obtain a copper wire;
step three, annealing treatment, namely heating the annealing furnace to 230-260 ℃, vacuumizing, introducing nitrogen, and then conveying the copper wire into the annealing furnace for annealing treatment;
step four, water cooling and wiping, namely cooling the annealed copper wire by a water cooling device, immersing the copper wire in antioxidant liquid, and removing redundant antioxidant liquid on the surface of the copper wire by using cotton cloth containing the antioxidant liquid;
and step five, tinning and drying, namely preheating and drying the copper wire subjected to antioxidant solution removal under the protection of nitrogen, tinning in a tinning mold, drying by hot air, and naturally cooling to obtain a finished copper wire.
2. The processing technology of the copper wire according to claim 1, wherein the antioxidant liquid comprises the following components in parts by weight:
10-15 parts of base oil;
15-30 parts of a lubricant;
40-60 parts of castor oil ester;
15-20 parts of vulcanized cottonseed oil;
5-10 parts of a metal antioxidant;
20-30 parts of distilled water.
3. The processing technology of the copper wire as recited in claim 2, wherein the metal antioxidant comprises the following components in parts by weight:
0.9-1.5 parts of benzotriazole;
0.4-1.2 parts of sodium benzoate;
1-2 parts of triethanolamine;
2-4 parts of ethanol.
4. The process for producing a copper wire according to claim 2, wherein the lubricant is selected from the group consisting of silicone oil, silicate ester and phosphate ester.
5. The process for manufacturing copper wire as recited in claim 1, wherein in the third step, the drawing speed of the copper wire is 120-150 m/min.
6. The process for processing the copper wire according to claim 1, wherein the time of the copper wire in the annealing furnace in the third step is 3-5 s.
7. The processing technology of the copper wire according to claim 1, wherein the second step is specifically configured to perform drawing, the straightened and corrected copper wire raw material is fed into a small drawing machine with drawing oil, so that the diameter of the copper wire raw material is reduced, and polishing treatment is performed in the drawing process to obtain the copper wire.
8. The processing technology of the copper wire according to claim 1, wherein the fourth step is specifically configured as a step of water-cooling wiping, the annealed copper wire is cooled by a water-cooling device and then immersed in the antioxidant liquid, the excessive antioxidant liquid on the surface of the copper wire is removed by cotton cloth containing the antioxidant liquid, and the copper wire is blown by cold air in the process.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112171104A (en) * | 2020-09-11 | 2021-01-05 | 江苏佳华金属线有限公司 | Preparation method of antioxidant soldering tin for tinned copper wire |
| CN113106369A (en) * | 2021-04-15 | 2021-07-13 | 江西富鸿金属有限公司 | Hot tinning process for superfine copper wire |
| CN113695416A (en) * | 2021-08-27 | 2021-11-26 | 广东华创盈五金科技有限公司 | High-toughness copper electronic wire and processing technology thereof |
| CN114345973A (en) * | 2021-12-24 | 2022-04-15 | 通鼎互联信息股份有限公司 | Method for cleaning oxidized finished copper wire |
| CN115631894A (en) * | 2022-08-18 | 2023-01-20 | 无锡市明星精密线材有限公司 | Tin-plated copper stranded wire production process capable of reducing wire breakage rate |
| CN115896658A (en) * | 2022-11-28 | 2023-04-04 | 太仓市林源电线电缆有限公司 | Surface oxidation resistance treatment method for soft copper braided wire |
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