CN1174766A - Method for making high strength copper-clad steel wire - Google Patents
Method for making high strength copper-clad steel wire Download PDFInfo
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- CN1174766A CN1174766A CN 95109792 CN95109792A CN1174766A CN 1174766 A CN1174766 A CN 1174766A CN 95109792 CN95109792 CN 95109792 CN 95109792 A CN95109792 A CN 95109792A CN 1174766 A CN1174766 A CN 1174766A
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- steel wire
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- strength copper
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Abstract
The present invention relates to a preparation method of high-strength copper-covered steel wire. It is characterized by using bullet wire or hard wire as core material; having no need of preplating a layer of nickel on the surface of steel wire; driectly copperplating in acidic solution containing no cyanide; once controlling wire diameter; raising surface brightness and smooth finish; and the above-mentioned material is processed by wire-drawing treatment so as to can obtain the high-performance high-strength copper-covered steel wire with more compact copperplated layer.
Description
The present invention relates to a kind of manufacture method of high-strength copper-clad steel wire, particularly the method for copperizing continuously of medium carbon steel, high-carbon steel belongs to metallurgical class.
The history in existing two, 30 years of the appearance of welding wire.Because welding wire can be saved the higher copper of great amount of cost and have than the better mechanical performance of copper wire, has been widely used in fields such as post and telecommunications communication, ultra-high-tension power transmission line, coaxial cable, electronic component down-lead at present.
The method of producing welding wire at present has:
1, steel wire is carried out preplating processing and copper plating treatment in containing the alkaline electrolyte of cyanide.The weak point of this method is to contain the cyanide composition in the plating bath, and is poisonous, and contaminated environment impairs workers'health, and complex process, production cost height.
2, preplating one deck nickel on steel wire carries out copper facing again.This method major defect is to consume noble metal nickel, production cost height.
3, carry out copper facing earlier with mild steel, dial through more than ten times draw, draw and dial deflection greater than 80%, copper plate and steel core bulk deformation from the coarse to fine, make tensile strength reach 800MPa.This method major defect is a complex process, and welding wire intensity is low, does not reach the standard of high-strength copper-clad steel wire.
The objective of the invention is to overcome the weak point of said method, a kind of cyanide composition that all do not contain in preplating processing and copper plating treatment solution is provided, also need not the manufacture method of quick, the direct high-strength copper-clad steel wire of preplating one deck nickel before electro-coppering.This method can produce that copper-steel adhesion is strong, high-compactness, best bright finish, high-performance, high-strength copper-clad steel wire.
In order to reach purpose of the present invention, be that bullet wire or the high-carbon steel wire of 0.1～5mm is the bone core with diameter, copper facing in acidic bath.In order to make steel core in acid copper plating solution, not produce the reaction of displacement copper, earlier steel core is carried out surface treatment, make its surface produce one deck positive potential rete, in acidic bath, carry out copper facing again, thickness of coated copper layer is 0.5～200 μ, once control at last silk footpath, the surface smoothness that improves copper plate and brightness, and the surface of copper layer density draw and dial.
Characteristics of the present invention are: make the bone core with bullet wire or high-carbon steel wire, and directly copper facing in the copper plating bath of acid cyanide-free composition, drawing to dial through one-time surface more promptly becomes the finished product high-strength copper-clad steel wire.
The technological process of this method is: middle and high carbon steel wire, and---------the positive potential film is handled, and---------washing---is dried---surface is drawn and dialled---finished product packing in copper facing in washing in washing in pickling.
Pickling adopts sulfuric acid to carry out cathodic pickling;
Positive potential film Treatment Solution composition is: both sums of potassium hydroxide or NaOH or any are 3～10%, nitrilotriacetic acid 6～12%, sulfuric acid 1～10%, hydrochloric acid 2～30%, citric acid 0.5～12%, water 40～80%.
Steel wire imported in the positive potential film Treatment Solution carry out electrochemical treatments, its parameter is: pH value 6～9,15～50 ℃ of solution temperatures, current density 5～30A/dm
2
Copper plating solution is: copper sulphate 10～70%, sulfuric acid 3～10%, hydrochloric acid 3～8%, potassium silicate 1～15%, citric acid 1～17%, water 50～70%.
Its electroplating parameter is: current density 3～150A/dm
2, pH value 0.5～4,15～70 ℃ of solution temperatures.
The surface is drawn and dialled: draw with the speed of 0.1～4 meter per second and dial, drawing and dialling compression ratio is 0.5～7%.
The present invention compared with prior art has following advantage:
1, copper one steel bond strength height, the coating non-scale does not ftracture, does not peel off.
2, technology is simple, production efficiency is high, production cost is low.
3, do not contain the cyanide composition in the plating bath, pollution-free.
4, welding wire intensity height, density height, brightness height, conduct electricity very well.
5, specification limit wide, can produce the heavy welding wire of deep bid.
Embodiment:
Matrix material: bullet wire.Diameter 3.4mm; Finished diameter 4mm.
Positive potential film treatment fluid: potassium hydroxide 2%, NaOH 3.5%, nitrilotriacetic acid 8%, hydrochloric acid 17%, citric acid 4%, water 65.5%.
Technological parameter: pH value: 8～9,40 ℃ of temperature, current density: 15A/dm
2
Copper plating solution composition: copper sulphate: 55%, sulfuric acid 7%, hydrochloric acid 8%, potassium silicate 2%, citric acid 12%, water 16%.
Technological parameter: current density 80A/dm
2, pH value 3.5～4,50 ℃ of temperature.
The surface is drawn and dialled: with LF-8/560 type water tank type wire drawing machine, draw dial hole directly to be φ 4.0mm, speed 1.5 meter per seconds draw to dial and handle.
Finished product detection result:
Diameter: 4.0mm
Tensile strength: 1224N/mm
2
Conductance: greater than 40%
Resistivity: 3.8 Ω/m
Critical load: 1050N/mm
2
Claims (4)
1, a kind of manufacture method of high-strength copper-clad steel wire is characterized in that: medium carbon steel or high-carbon steel wire with diameter 0.1～5mm are made the bone core, after allowing steel wire produce the surface treatment of positive potential film, and copper facing in the plating bath of acid cyanide-free composition.
2, method according to claim 1 is characterized in that: positive potential film Treatment Solution composition is: both sums of potassium hydroxide or NaOH or any are 3～10%, nitrilotriacetic acid 6～12%, sulfuric acid 1～10%, hydrochloric acid 2～30%, citric acid 0.5～12%, water 40～80%.Its technological parameter is: pH value 6～9,15 °～50 ℃ of solution temperatures, current density 5～30A/dm
2
3, method according to claim 1 is characterized in that: the acid copper plating bath composition is: sulfuric acid steel 10～70%, and sulfuric acid 3～10%,
Hydrochloric acid 3～8%, potassium silicate 1～15%,
Citric acid 1～17%, water 30～70% its technological parameters are: current density 3～150A/dm
2,
PH value 0.5～4,15～70 ℃ of solution temperatures
4, method according to claim 1 is characterized in that: thickness of coated copper layer is 05～200 μ
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95109792 CN1174766A (en) | 1995-08-25 | 1995-08-25 | Method for making high strength copper-clad steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95109792 CN1174766A (en) | 1995-08-25 | 1995-08-25 | Method for making high strength copper-clad steel wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1174766A true CN1174766A (en) | 1998-03-04 |
Family
ID=5077374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95109792 Pending CN1174766A (en) | 1995-08-25 | 1995-08-25 | Method for making high strength copper-clad steel wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1174766A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254630A (en) * | 2011-05-10 | 2011-11-23 | 浙江省浦江县百川产业有限公司 | Production technology of soft-state copper-clad steel wire |
| CN102834877A (en) * | 2010-06-24 | 2012-12-19 | 株式会社藤仓 | Electrical cable for use in automobiles |
| CN109518500A (en) * | 2018-12-20 | 2019-03-26 | 无锡通用钢绳有限公司 | A kind of nickel-plated steel cord and its production technology |
| CN113462868A (en) * | 2021-06-15 | 2021-10-01 | 句容市百事特复合材料有限公司 | Efficient preparation method of reinforced metal cluster long fiber |
-
1995
- 1995-08-25 CN CN 95109792 patent/CN1174766A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834877A (en) * | 2010-06-24 | 2012-12-19 | 株式会社藤仓 | Electrical cable for use in automobiles |
| CN102254630A (en) * | 2011-05-10 | 2011-11-23 | 浙江省浦江县百川产业有限公司 | Production technology of soft-state copper-clad steel wire |
| CN102254630B (en) * | 2011-05-10 | 2012-05-23 | 浙江省浦江县百川产业有限公司 | Production technology of soft-state copper-clad steel wire |
| CN109518500A (en) * | 2018-12-20 | 2019-03-26 | 无锡通用钢绳有限公司 | A kind of nickel-plated steel cord and its production technology |
| CN113462868A (en) * | 2021-06-15 | 2021-10-01 | 句容市百事特复合材料有限公司 | Efficient preparation method of reinforced metal cluster long fiber |
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