CN103177819A - Copper-coated steel wire and method for manufacturing same - Google Patents
Copper-coated steel wire and method for manufacturing same Download PDFInfo
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- CN103177819A CN103177819A CN2012105319993A CN201210531999A CN103177819A CN 103177819 A CN103177819 A CN 103177819A CN 2012105319993 A CN2012105319993 A CN 2012105319993A CN 201210531999 A CN201210531999 A CN 201210531999A CN 103177819 A CN103177819 A CN 103177819A
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Abstract
The invention discloses a method for manufacturing a copper-coated steel wire. The method includes steps of acid-washing and rustproof treatment for a steel wire; primary drawing treatment; primary heat treatment; copper electroplating; secondary drawing treatment; secondary heat treatment; and surface protection. The method has the advantages that the usage amount of copper of the copper-coated steel wire is greatly reduced under the condition of meeting the requirement on electrical conductivity, special requirements of electronic products on the mechanical performance of the copper-coated steel wire are met, and the copper-coated steel wire brings convenience for line production of the electronic products owing to an iron core; and the copper-coated steel wire can be used as a lead or a connecting wire for the electronic products, replaces a pure copper wire and is wide in application.
Description
Technical field
The present invention relates to Material Field, relate in particular to a kind of copper covered steel wire and production method thereof.
Background technology
Copper is a kind of good conducting metal, and the application on electronic product is very extensive.But the metallic copper resource scarcity is expensive.And the metal copper wire is soft, can not satisfy electronic product to the specific (special) requirements of mechanical performance.
Therefore, need to provide a kind of copper covered steel wire and production method thereof to address the above problem.
Summary of the invention
In order to address this problem, the invention discloses a kind of production method of copper covered steel wire, said method comprising the steps of: the pickling of steel wire and anti-treatment step, drawing treatment step, heat treatment step, electro-coppering step, drawing treatment step, heat treatment step and the surfacecti proteon step for the second time for the second time for the first time for the first time of embroidering.
Preferably, the pickling of described steel wire is embroidered in step with anti-, adopts the hydrochloric acid solution of 100-200g/L to carry out pickling processes, then uses the Na by 90-200g/L
2NO
2, 10-30g/L Na
2CO
3Process with the antirust solution that excess water forms.
Preferably, the described treatment step of drawing for the first time comprises the following steps successively: unwrapping wire, mechanical descaling, spray washing, air-blowing, cathodic pickling, air-blowing, spray washing, air-blowing, be coated with boron, air-blowing, oven dry, drawing, take-up, checking procedure.
Preferably, described cathodic pickling is carried out under the 250-350A electric current, and cathodic pickling liquid is the H of 300-400g/L
2SO
4Solution, the described treatment fluid that is coated with the boron processing is the Na of 400-500g/L
2B
4O
710H
2O solution, the temperature of described oven dry is in 105-115 degree left and right.
Preferably, described heat treatment for the first time comprise successively shove charge, emptying, heat up, be incubated, move back temperature, come out of the stove, checking procedure, wherein emptying time is 3-4h, the heating-up time is 3-4h, temperature retention time is 6-8h, emptying, heat up, hydrogen flowing quantity is 1.5-3m in insulation
3/ h moves back that in temperature, hydrogen flowing quantity is 0.5-1m
3/ h, burning stewed temperature is 650-750 ℃, tapping temperature is less than or equal to 110 ℃.
Preferably, described electro-coppering step comprises unwrapping wire, electrolytic degreasing, washing, cathodic pickling, washing, pre-copper facing, washing, positive copper facing, washing, take-up and checking procedure, the treatment fluid that wherein adopts in the electrolytic degreasing step is comprised of the NaOH of 100-150g/L and the water of surplus, and the condition of work that electrolytic degreasing is processed is temperature is that 40-80A, cathode current are 100-150A more than or equal to 30 ℃, anode current; The treatment fluid that cathodic pickling is processed is by the H of 400-500g/L
2SO
4The water of solution and surplus forms, and the condition of work that cathodic pickling is processed is electric current 30-55A.
Preferably, the solution that in described electro-coppering step, pre-copper-plated step adopts is that the NaCN of CuCN, 10-20g/L of 15-30g/L and the water of surplus form, and its pH value is 10-12, and condition of work is temperature 30-50 degree, electroplating current 100-200A.
Preferably, the solution that adopts in described positive copper facing is the CuSO of 200-250g/L
45H
2The H of O, 60-110g/L
2SO
4Form with the water of surplus, its pH value is 10-12, and condition of work is temperature 30-50 degree, electroplating current 1000-10000A.
Preferably, described drawing for the second time process comprise successively reach the standard grade, wear mould, hanging wire, start shooting, roll off the production line, checking procedure, wherein the diopter of the lubricating oil that adopts is between 4-20.
Preferably; described heat treatment for the second time comprise unwrapping wire, pipeline thermal process add the hydrogen protection, cooling, soak anti-copper discoloration agent, cross die drawing light, washing, air-blowing, soak surface protectant, take-up, check, packing; wherein heat treated temperature is between the 690-800 degree, and hydrogen flowing quantity is at 150-200m
3/ h, the proportioning of anti-copper discoloration agent and water is 1: 300, the matched proportion density of surface protectant is one thousandth to thousand/four.
Copper covered steel wire of the present invention under the requirement of satisfying electric conductivity, greatly reduces the use amount of copper, has satisfied simultaneously the specific (special) requirements of electronic product to mechanical performance, due to the existence of iron core, but has also brought convenience for the continuous productive process of electronic product.This product is used for lead-in wire and the connecting line of electronic product, and the instead of pure copper cash is widely used.
Introduced the concept of a series of reduced forms in the summary of the invention part, this will further describe in the embodiment part.Content part of the present invention does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection range of attempting to determine technical scheme required for protection.
In conjunction with following detailed description advantages and features of the invention.
Embodiment
In the following description, a large amount of concrete details have been provided in order to more thorough understanding of the invention is provided.Yet, it will be apparent to one skilled in the art that the present invention can need not one or more these details and be implemented.In other example, for fear of obscuring with the present invention, be not described for technical characterictics more well known in the art.
In order thoroughly to understand the present invention, detailed structure will be proposed in following description.Obviously, execution of the present invention is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present invention is described in detail as follows, yet except these were described in detail, the present invention can also have other execution modes.
Below embodiments of the invention are made detailed description.
At first the present invention discloses a kind of production method of copper covered steel wire, and the method comprises the following steps: the pickling of steel wire rod (steel wire) and anti-treatment step, drawing treatment step, heat treatment step, electro-coppering step, drawing treatment step, heat treatment step and the surfacecti proteon step for the second time for the second time for the first time for the first time of embroidering.
The pickling of wherein said steel wire is embroidered in step with anti-, adopts the hydrochloric acid solution of 100-200g/L (for example 100g/L, 150g/L, 200g/L) to carry out pickling processes, then uses the Na by 90-200g/L (routine 90g/L, 150g/L, 200g/L)
2NO
2, 10-30g/L Na
2CO
3Process with the antirust solution that excess water forms.
The described treatment step of drawing for the first time comprises the following steps successively: unwrapping wire, mechanical descaling, spray washing, air-blowing, cathodic pickling, air-blowing, spray washing, air-blowing, be coated with boron, air-blowing, oven dry, drawing, take-up, checking procedure.Wherein cathodic pickling is to carry out under 250-350A (such as 250A, 300A, 350A etc.) electric current, and cathodic pickling liquid is the H of 300-400g/L (such as 200g/L, 300g/L, 430g/L etc.)
2SO
4Solution.The described treatment fluid that is coated with the boron processing is the Na of 400-500g/L (such as 200g/L, 300g/L, 500g/L etc.)
2B
4O
710H
2O solution.The temperature of described oven dry is in 105-115 degree left and right.
Described heat treatment for the first time comprise successively shove charge, emptying, heat up, be incubated, move back temperature, come out of the stove, checking procedure.Wherein emptying time is 3-4h, and the heating-up time is 3-4h, and temperature retention time is 6-8h, emptying, heat up, the insulation hydrogen flowing quantity is 1.5-3m
3/ h, moving back warm hydrogen flowing quantity is 0.5-1m
3/ h, burning stewed temperature is 650-750 ℃, tapping temperature is less than or equal to 110 ℃.
Described electro-coppering step comprises unwrapping wire, electrolytic degreasing, washing, cathodic pickling, washing, pre-copper facing, washing, positive copper facing, washing, take-up and checking procedure.The treatment fluid that wherein adopts in the electrolytic degreasing step is comprised of the NaOH of 100-150g/L (routine 100g/L, 125g/L, 150g/L) and the water of surplus.The condition of work that electrolytic degreasing is processed is that temperature is that 40-80A (for example 40A, 60A, 80A), cathode current are 100-150A (routine 100A, 125A, 150A) more than or equal to 30 ℃ of (for example 15 ℃, 25 ℃), anode currents; The treatment fluid that cathodic pickling is processed is by the H of 400-500g/L (for example 400g/L, 450g/L, 500g/L)
2SO
4The water of solution and surplus forms.The condition of work that cathodic pickling is processed is electric current 30-55A (for example 30A, 45A, 55A).
The solution that in the electro-coppering step, pre-copper-plated step adopts is that the water of the CuCN of 15-30g/L, the NaCN of 10-20g/L (dissociating) and surplus forms, and its pH value is 10-12.Condition of work is temperature 30-50 degree, electroplating current 100-200A.
The solution that adopts in positive copper facing is the CuSO of 200-250g/L
45H
2The H of O, 60-110g/L
2SO
4Form with the water of surplus, its pH value is 10-12.Condition of work is temperature 30-50 degree, electroplating current 1000-10000A.
Described drawing for the second time process comprise successively reach the standard grade, wear mould, hanging wire, start shooting, roll off the production line, checking procedure.Wherein the diopter of the lubricating oil that adopts is between 4-20.
Heat treatment for the second time comprise unwrapping wire, pipeline thermal process add the hydrogen protection, cooling, soak anti-copper discoloration agent, cross die drawing light, washing, air-blowing, soak surface protectant, take-up, check, packing.
Heat treated temperature is between the 690-800 degree, and hydrogen flowing quantity is at 150-200m
3/ h.
The proportioning of anti-copper discoloration agent and water is 1: 300.Should anti-copper discoloration agent can form one deck passivating film as thin as a wafer on the copper surface, thereby play the effect that prevents variable color.
The matched proportion density of surface protectant is one thousandth to thousand/four.Surface protectant is a kind of organic acid compound, take absolute ethyl alcohol as solvent, forms the diaphragm of layer of transparent at wire surface, thereby plays a protective role.
The present invention also further discloses the copper covered steel wire of making by said method.The copper covered steel wire packing of making adopts the drum packing, has guaranteed the linearity of wire rod, and not needing directly just can be straight, is conducive to use.And more be conducive to the protection of product, be conducive to check and the control of product appearance quality.
Copper covered steel wire of the present invention under the requirement of satisfying electric conductivity, greatly reduces the use amount of copper, has satisfied simultaneously the specific (special) requirements of electronic product to mechanical performance, due to the existence of iron core, but has also brought convenience for the continuous productive process of electronic product.This product is used for lead-in wire and the connecting line of electronic product, and the instead of pure copper cash is widely used.
The present invention is illustrated by above-described embodiment, but should be understood that, above-described embodiment just is used for for example and the purpose of explanation, but not is intended to the present invention is limited in described scope of embodiments.It will be appreciated by persons skilled in the art that in addition the present invention is not limited to above-described embodiment, can also make more kinds of variants and modifications according to instruction of the present invention, these variants and modifications all drop in the present invention's scope required for protection.Protection scope of the present invention is defined by the appended claims and equivalent scope thereof.
Claims (10)
1. the production method of a copper covered steel wire, it is characterized in that, said method comprising the steps of: the pickling of steel wire and anti-treatment step, drawing treatment step, heat treatment step, electro-coppering step, drawing treatment step, heat treatment step and the surfacecti proteon step for the second time for the second time for the first time for the first time of embroidering.
2. the production method of copper covered steel wire according to claim 1, is characterized in that, the pickling of described steel wire is embroidered in step with anti-, adopts the hydrochloric acid solution of 100-200g/L to carry out pickling processes, then uses the Na by 90-200g/L
2NO
2, 10-30g/L Na
2CO
3Process with the antirust solution that excess water forms.
3. the production method of copper covered steel wire according to claim 2, it is characterized in that, the described treatment step of drawing for the first time comprises the following steps successively: unwrapping wire, mechanical descaling, spray washing, air-blowing, cathodic pickling, air-blowing, spray washing, air-blowing, be coated with boron, air-blowing, oven dry, drawing, take-up, checking procedure.
4. the production method of copper covered steel wire according to claim 3, is characterized in that, described cathodic pickling is carried out under the 250-350A electric current, and cathodic pickling liquid is the H of 300-400g/L
2SO
4Solution, the described treatment fluid that is coated with the boron processing is the Na of 400-500g/L
2B
4O
710H
2O solution, the temperature of described oven dry is in 105-115 degree left and right.
5. the production method of copper covered steel wire according to claim 4, it is characterized in that, described heat treatment for the first time comprise successively shove charge, emptying, heat up, be incubated, move back temperature, come out of the stove, checking procedure, wherein emptying time is 3-4h, heating-up time is 3-4h, temperature retention time is 6-8h, emptying, heat up, hydrogen flowing quantity is 1.5-3m in insulation
3/ h moves back that in temperature, hydrogen flowing quantity is 0.5-1m
3/ h, burning stewed temperature is 650-750 ℃, tapping temperature is less than or equal to 110 ℃.
6. the production method of copper covered steel wire according to claim 5, it is characterized in that, described electro-coppering step comprises unwrapping wire, electrolytic degreasing, washing, cathodic pickling, washing, pre-copper facing, washing, positive copper facing, washing, take-up and checking procedure, the treatment fluid that wherein adopts in the electrolytic degreasing step is comprised of the NaOH of 100-150g/L and the water of surplus, and the condition of work that electrolytic degreasing is processed is temperature is that 40-80A, cathode current are 100-150A more than or equal to 30 ℃, anode current; The treatment fluid that cathodic pickling is processed is by the H of 400-500g/L
2SO
4The water of solution and surplus forms, and the condition of work that cathodic pickling is processed is electric current 30-55A.
7. the production method of copper covered steel wire according to claim 6, it is characterized in that, the solution that in described electro-coppering step, pre-copper-plated step adopts is that the NaCN of CuCN, 10-20g/L of 15-30g/L and the water of surplus form, its pH value is 10-12, condition of work is temperature 30-50 degree, electroplating current 100-200A.
8. the production method of copper covered steel wire according to claim 7, is characterized in that, the solution that adopts in described positive copper facing is the CuSO of 200-250g/L
45H
2The H of O, 60-110g/L
2SO
4Form with the water of surplus, its pH value is 10-12, and condition of work is temperature 30-50 degree, electroplating current 1000-10000A.
9. the production method of copper covered steel wire according to claim 8, is characterized in that, described drawing for the second time process comprise successively reach the standard grade, wear mould, hanging wire, start shooting, roll off the production line, checking procedure, wherein the diopter of the lubricating oil that adopts is between 4-20.
10. the production method of copper covered steel wire according to claim 9; it is characterized in that; described heat treatment for the second time comprise unwrapping wire, pipeline thermal process add the hydrogen protection, cooling, soak anti-copper discoloration agent, cross die drawing light, washing, air-blowing, soak surface protectant, take-up, check, packing; wherein heat treated temperature is between the 690-800 degree, and hydrogen flowing quantity is at 150-200m
3/ h, the proportioning of anti-copper discoloration agent and water is 1: 300, the matched proportion density of surface protectant is one thousandth to thousand/four.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105319993A CN103177819A (en) | 2012-12-06 | 2012-12-06 | Copper-coated steel wire and method for manufacturing same |
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|---|---|---|---|
| CN2012105319993A CN103177819A (en) | 2012-12-06 | 2012-12-06 | Copper-coated steel wire and method for manufacturing same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531303A (en) * | 2013-09-16 | 2014-01-22 | 浙江百川导体技术股份有限公司 | Technology for producing soft copper-clad steel wire by adopting welding cladding method |
| CN104694815A (en) * | 2015-03-16 | 2015-06-10 | 南通弘扬金属制品有限公司 | Extra-high-conductivity tin-coated copper-clad steel wire production method |
| CN105112627A (en) * | 2015-07-08 | 2015-12-02 | 南通弘扬金属制品有限公司 | Method for producing ultra-high-conductivity copper clad steel conductors |
| CN106048670A (en) * | 2016-06-21 | 2016-10-26 | 南通弘扬金属制品有限公司 | Environment-friendly production process of tin plated bismuth alloy copper covered steel wire |
-
2012
- 2012-12-06 CN CN2012105319993A patent/CN103177819A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531303A (en) * | 2013-09-16 | 2014-01-22 | 浙江百川导体技术股份有限公司 | Technology for producing soft copper-clad steel wire by adopting welding cladding method |
| CN103531303B (en) * | 2013-09-16 | 2015-12-23 | 浙江百川导体技术股份有限公司 | Welding cladding process is adopted to produce the technique of soft state copper covered steel wire |
| CN104694815A (en) * | 2015-03-16 | 2015-06-10 | 南通弘扬金属制品有限公司 | Extra-high-conductivity tin-coated copper-clad steel wire production method |
| CN105112627A (en) * | 2015-07-08 | 2015-12-02 | 南通弘扬金属制品有限公司 | Method for producing ultra-high-conductivity copper clad steel conductors |
| CN106048670A (en) * | 2016-06-21 | 2016-10-26 | 南通弘扬金属制品有限公司 | Environment-friendly production process of tin plated bismuth alloy copper covered steel wire |
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