CN102810358A - Production method of copper covered steel wire for electronic product connecting line - Google Patents
Production method of copper covered steel wire for electronic product connecting line Download PDFInfo
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- CN102810358A CN102810358A CN2011101431059A CN201110143105A CN102810358A CN 102810358 A CN102810358 A CN 102810358A CN 2011101431059 A CN2011101431059 A CN 2011101431059A CN 201110143105 A CN201110143105 A CN 201110143105A CN 102810358 A CN102810358 A CN 102810358A
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Abstract
The invention relates to a production method of a copper covered steel wire for an electronic product connecting line. The method comprises the following steps: (1) carrying out a surface treatment on a steel core; (2) drawing the steel core twice; (3) carrying out a heat treatment on the steel core; (4) taking out the steel core from a furnace and carrying out pickling; (5) putting the steel core into a plating bath to be plated; and (6) drawing the copper covered steel wire after being plated for three times. Compared with pure copper, the copper covered steel wire provided by the invention is greatly reduced in cost, however the flexibility is the same as a copper wire, and the fatigue resistance is improved as compared with the copper wire; after the steel wire is drawn for five times, the process that the diameter is reduced in a drawing procedure is controlled precisely, the drawing is stable and reliable, and the copper covered steel wires of phi 0.05mm,can be produced and used for the electronic product connecting line.
Description
Technical field
The present invention relates to a kind of production method of copper covered steel wire, particularly a kind of electronic product connecting line is with the production method of copper covered steel wire.
Background technology
In the commercial production in the past, metallic conductor is in the majority with copper, aluminium, though also use gold, silver, because of costing an arm and a leg, generally not too adopts.Copper, aluminum are extensively adopted because of good drawing property and electric conductivity are arranged.But along with the scarcity of resources and the ecological problem of copper, aluminium ore in recent years, and the rise in price factor, many manufacturing enterprises are faced with a very big cost pressure.How under possible situation, to find a kind ofly can reach similar performance, the conductor material that price has superiority again is a hope of manufacturing enterprise always.So-called copper covered steel is exactly that steel surface at certain diameter adopts special process to coat certain thickness copper layer, reaches certain electric conductivity.We know that electric current or signal of telecommunication transmission frequency are high more on the physical characteristic, and its " skin effect " is obvious more.As long as then its copper layer has certain thickness just to be equivalent in copper material, transmit, can reach suitable effect.Based on above theory, the copper covered steel material can carry out relevant substituting at light current and side signal transmission face.But,, be widely used in fields such as weakness, immediate current, signal transmission so in general current delivery, should not adopt because of the copper cash or the aluminium of its resistance apparently higher than equivalent diameter.
At present the domestic making copper covered steel of China is general adopts three kinds of technologies, continuous metal cast process: can accomplish major diameter, the bar that copper layer thickness is thick, but because eccentricity issues, and reason such as copper layer copper content is impure, generally do not do drawing and use material; The coating method: can obtain successional becoming a useful person, intensity and thickness are all easy to control, but not being apt to do of large diameter wire rod and thin diameter; Galvanoplastic: can obtain successional wire rod, intensity and copper thickness are also more easy to control, but superhard, ultra product thick and that copper layer thickness is very thick is uneconomical, has special advantages aspect the drawing-down line.China copper covered steel wire manufacturer highest level can directly be accomplished 0.08mm with line at present, the incompetent temporarily production that realizes the ladle line of Φ 0.05mm.
Summary of the invention
The objective of the invention is to solve above-mentioned deficiency, the production method of a kind of electronic product connecting line with copper covered steel wire is provided.
The technical scheme that realizes the object of the invention is:, a kind of electronic product connecting line is with the production method of copper covered steel wire, step comprises: surface treatment is carried out to steel core in (1); (2) steel core is carried out twice drawing; (3) steel core is heat-treated; (4) pickling of coming out of the stove; (5) steel core being put into electroplating bath electroplates; (6) copper covered steel wire after will electroplating is through three drawings.
Above-mentioned electronic product connecting line is with the production method of copper covered steel wire, the surface treatment of described step (1) for steel core through six take turns the decorticator scale removal, cathodic pickling is removed steel surface impurity, is put into the step process of borax case borax dipping, oven dry.
Above-mentioned electronic product connecting line is with the production method of copper covered steel wire, and twice drawing of described step (2) is respectively big drawing machine drawing and the drawing of finish draw machine.
Above-mentioned electronic product connecting line is with the production method of copper covered steel wire, and described big drawing machine drawing is through 6 molds, and the drawing of finish draw machine is through 4 molds.
Above-mentioned electronic product connecting line is with the production method of copper covered steel wire, and the heat treatment of described step (3) is annealing in process, and annealing temperature is 740-750 ℃, and the time is 7-9 hour.
Above-mentioned electronic product connecting line is with the production method of copper covered steel wire, and the pickling of described step (4) is for carrying out cathodic pickling in sulfuric acid.
Above-mentioned electronic product connecting line is with the production method of copper covered steel wire, and it is 20-25% that described step (5) steel core is electroplated to conductance, and electroplating current is 7200-7500A, and current density is 6-10A/dm
2, linear speed is 200-400m/min.
Above-mentioned electronic product connecting line is with the production method of copper covered steel wire, and three drawings of described step (6) are respectively the drawings of drawing for the first time, wire drawing machine drawing, little machine drawing, and wherein the diamond mould is adopted in the drawing of wire drawing machine drawing and little machine drawing.
Above-mentioned electronic product connecting line is with the production method of copper covered steel wire, totally five drawings of the priority in described step (1) and the step (6), and each drawing steel core reduced value accounts for the percentage that always dwindles value and is followed successively by 60%, 15%, 15%, 8%, 2%.
Above-mentioned electronic product connecting line is with the production method of copper covered steel wire, and the diameter of the copper covered steel wire of described step (6) after three drawings is 0.05mm.
The resistance to wear of diamond mould is very good, directly reaches 0.06mm when following at the line of copper covered steel, and the walking speed of drawing process center line is very fast, and speed is fast more; Wearing and tearing to mould are big more, when adopting general punching block or alloy mould, and the easy sideslip of drawing; And reduction of area strengthens during drawing, and slippage differs increasing with normal slippage, and drawing is very unstable; Therefore adopt diamond mould, the rough diamond resistance to wear is very good, and drawing is reliable and stable.The smoothness of diamond is very good in addition, and resistance is little during drawing, and line is not easily broken.
The present invention has positive effect: because the employing of technique scheme, compared with prior art, the present invention has following advantage:
(1) unit price of copper covered steel wire significantly reduces than pure copper wire, reduces by 40%; (2) copper covered steel flexibility and the copper cash of selecting for use respective material to produce are suitable; (3) fatigue resistance improves than copper cash, improves about 35%; (4) through 5 drawings, accurately control the process of reduced in the drawing procedure, can produce the earphone connecting line of Φ 0.05mm and use the ladle line; (5) the diamond mould is adopted in the part drawing, and the reliability of drawing process effectively improves.
Embodiment
(embodiment 1)
Select Baosteel BCH1T material Φ 6.5mm for use, surface treatment is carried out to steel core in (1), carries out six before this and takes turns the decorticator scale removal, further removes the impurity of steel core surface again through cathodic pickling, gets into the borax case then and carries out borax dipping, oven dry at last; (2) send into big drawing machine to steel core, be compressed to diameter of phi 2.5mm, get into the finish draw machine then and be compressed to Φ 1.6mm through four moulds again, be stranded being bundled into the volume about 100kg then through six mold drawings; (3) deliver to heat treatment department annealing in process in the well vacuum stove, after temperature is 750 ℃ of insulations after 7 hours, is cooled to room temperature with furnace temperature, come out of the stove; (4) steel core is carried out pickling in the sulfuric acid of 300g/L; (5) send on the steel core after the pickling coating bath to electroplate, electroplating current 7500A, current density adopt 7A/dm
2, Trace speed 200m/min is electroplated to 20% conductance; (6) machine under the ladle line after will electroplating pulls to Φ 0.65mm for the first time, and the Φ 160 type wire drawing machinees through diamond mould are pulled to Φ 0.15mm then, moves Φ 0.05mm to through little machine drawing drawing of diamond mould again.Be designated as product P-1.
(embodiment 2)
Select Baosteel BCH1T material Φ 6.5mm for use, surface treatment is carried out to steel core in (1), carries out six before this and takes turns the decorticator scale removal, further removes the impurity of steel core surface again through cathodic pickling, gets into the borax case then and carries out borax dipping, oven dry at last; (2) send into big drawing machine to steel core, be compressed to diameter of phi 2.5mm, get into the finish draw machine then and be compressed to Φ 1.6mm through four moulds again, be stranded being bundled into the volume about 100kg then through six mold drawings; (3) deliver to heat treatment department annealing in process in the well vacuum stove, after temperature is 740 ℃ of insulations after 9 hours, is cooled to room temperature with furnace temperature, come out of the stove; (4) steel core is carried out pickling in the sulfuric acid of 300g/L; (5) send on the steel core after the pickling coating bath to electroplate, electroplating current 7500A, current density adopt 7A/dm
2, Trace speed 300m/min is electroplated to 25% conductance; (6) machine under the ladle line after will electroplating pulls to Φ 0.65mm for the first time, and the Φ 160 type wire drawing machinees through diamond mould are pulled to Φ 0.15mm then, moves Φ 0.05mm to through little machine drawing drawing of diamond mould again.Be designated as product P-2.
(embodiment 3)
Select Armco iron Φ 6.5mm for use, surface treatment is carried out to steel core in (1), carries out six before this and takes turns the decorticator scale removal, further removes the impurity of steel core surface again through cathodic pickling, gets into the borax case then and carries out borax dipping, oven dry at last; (2) send into big drawing machine to steel core, be compressed to diameter of phi 2.5mm, get into the finish draw machine then and be compressed to Φ 1.6mm through four moulds again, be stranded being bundled into the volume about 100kg then through six mold drawings; (3) deliver to heat treatment department annealing in process in the well vacuum stove, after temperature is 745 ℃ of insulations after 9 hours, is cooled to room temperature with furnace temperature, come out of the stove; (4) steel core is carried out pickling in the sulfuric acid of 300g/L; (5) send on the steel core after the pickling coating bath to electroplate, electroplating current 7200A, current density adopt 6A/dm
2, Trace speed 400m/min is electroplated to 23% conductance; (6) machine under the ladle line after will electroplating pulls to Φ 0.65mm for the first time, and the Φ 160 type wire drawing machinees through diamond mould are pulled to Φ 0.15mm then, moves Φ 0.05mm to through little machine drawing drawing of diamond mould again.Be designated as product P-3.
(embodiment 4)
Select Armco iron Φ 6.5mm for use, surface treatment is carried out to steel core in (1), carries out six before this and takes turns the decorticator scale removal, further removes the impurity of steel core surface again through cathodic pickling, gets into the borax case then and carries out borax dipping, oven dry at last; (2) send into big drawing machine to steel core, be compressed to diameter of phi 2.5mm, get into the finish draw machine then and be compressed to Φ 1.6mm through four moulds again, be stranded being bundled into the volume about 100kg then through six mold drawings; (3) deliver to heat treatment department annealing in process in the well vacuum stove, after temperature is 745 ℃ of insulations after 8 hours, is cooled to room temperature with furnace temperature, come out of the stove; (4) steel core is carried out pickling in the sulfuric acid of 300g/L; (5) send on the steel core after the pickling coating bath to electroplate, electroplating current 7200A, current density adopt 10A/dm
2, Trace speed 400m/min is electroplated to 23% conductance; (6) machine under the ladle line after will electroplating pulls to Φ 0.65mm for the first time, and the Φ 160 type wire drawing machinees through diamond mould are pulled to Φ 0.15mm then, moves Φ 0.05mm to through little machine drawing drawing of diamond mould again.Be designated as product P-4.
The pure copper wire of table 1 same diameter and the contrast of copper covered steel wire rolling test crack conditions.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an electronic product connecting line is with the production method of copper covered steel wire, and step comprises: surface treatment is carried out to steel core in (1); (2) steel core is carried out twice drawing; (3) steel core is heat-treated; (4) pickling of coming out of the stove; (5) steel core being put into electroplating bath electroplates; (6) copper covered steel wire after will electroplating is through three drawings.
2. electronic product connecting line according to claim 1 is characterized in that with the production method of copper covered steel wire: the surface treatment of step (1) is for taking turns the step process that decorticator scale removal, cathodic pickling are removed steel surface impurity, put into borax case borax dipping, oven dry with steel core through six.
3. electronic product connecting line according to claim 1 is characterized in that with the production method of copper covered steel wire: twice drawing of step (2) is respectively big drawing machine drawing and the drawing of finish draw machine.
4. electronic product connecting line according to claim 3 is characterized in that with the production method of copper covered steel wire: the big drawing machine drawing is that the drawing of finish draw machine is through 4 molds through 6 molds.
5. electronic product connecting line according to claim 1 is characterized in that with the production method of copper covered steel wire: the heat treatment of step (3) is annealing in process, and annealing temperature is 740-750 ℃, and the time is 7-9 hour.
6. electronic product connecting line according to claim 1 is characterized in that with the production method of copper covered steel wire: the pickling of step (4) is for carrying out cathodic pickling in sulfuric acid.
7. electronic product connecting line according to claim 1 is characterized in that with the production method of copper covered steel wire: it is 20-25% that step (5) steel core is electroplated to conductance, and electroplating current is 7200-7500A, and current density is 6-10A/dm
2, linear speed is 200-400m/min.
8. electronic product connecting line according to claim 1 is with the production method of copper covered steel wire; It is characterized in that: three drawings of step (6) are respectively the drawings of drawing for the first time, wire drawing machine drawing, little machine drawing, and wherein the diamond mould is adopted in the drawing of wire drawing machine drawing and little machine drawing.
9. electronic product connecting line according to claim 1 is with the production method of copper covered steel wire; It is characterized in that: totally five drawings of the priority in step (1) and the step (6), each drawing steel core reduced value accounts for the percentage that always dwindles value and is followed successively by 60%, 15%, 15%, 8%, 2%.
10. electronic product connecting line according to claim 1 is characterized in that with the production method of copper covered steel wire: the diameter of the copper covered steel wire of step (6) after three drawings is 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101431059A CN102810358A (en) | 2011-05-31 | 2011-05-31 | Production method of copper covered steel wire for electronic product connecting line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101431059A CN102810358A (en) | 2011-05-31 | 2011-05-31 | Production method of copper covered steel wire for electronic product connecting line |
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| CN102810358A true CN102810358A (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101431059A Pending CN102810358A (en) | 2011-05-31 | 2011-05-31 | Production method of copper covered steel wire for electronic product connecting line |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177871A (en) * | 2017-04-23 | 2017-09-19 | 唐世群 | A kind of high voltage electric transmission cable steel core preprocess method |
| CN107442972A (en) * | 2017-09-23 | 2017-12-08 | 芜湖恒泰有色线材股份有限公司 | Continuous annealing production technology is drawn by the company that a kind of welding wire continues tube reducing |
| CN108062992A (en) * | 2017-11-07 | 2018-05-22 | 邢台钢铁有限责任公司 | Copper clad steel composite shielding cable steel wire rod and its production method |
| CN116043094A (en) * | 2023-01-09 | 2023-05-02 | 鞍钢股份有限公司 | Copper-clad steel wire manufacturing method for improving heat treatment performance of intermediate wire |
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| JPS5871391A (en) * | 1981-10-21 | 1983-04-28 | Kobe Steel Ltd | Method for electroplating steel wire for welding in copper sulfate bath |
| CN2226988Y (en) * | 1995-09-22 | 1996-05-15 | 刘朝建 | Surface disposal device for double-wire wire |
| CN1300868A (en) * | 1999-12-23 | 2001-06-27 | 山东工业大学 | Hot-dip technology for producing steel-in-copper wires by flux activating method and its apparatus |
| US20040247865A1 (en) * | 2001-07-27 | 2004-12-09 | Federico Pavan | Electrolytic process for depositing a layer of copper on a steel wire |
| CN1913046A (en) * | 2006-08-03 | 2007-02-14 | 仲庆 | Preparation method of copper covered steel woven wire special for communication cable shielding layer |
| CN101303923A (en) * | 2008-07-07 | 2008-11-12 | 张荣良 | Technique for producing high-strength copper covered steel conductor for coaxial cable inner core wire |
| CN101763916A (en) * | 2009-12-30 | 2010-06-30 | 甘肃天拓冶金科技有限公司 | Production method for copper-clad steel double-metal wire |
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2011
- 2011-05-31 CN CN2011101431059A patent/CN102810358A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5871391A (en) * | 1981-10-21 | 1983-04-28 | Kobe Steel Ltd | Method for electroplating steel wire for welding in copper sulfate bath |
| CN2226988Y (en) * | 1995-09-22 | 1996-05-15 | 刘朝建 | Surface disposal device for double-wire wire |
| CN1300868A (en) * | 1999-12-23 | 2001-06-27 | 山东工业大学 | Hot-dip technology for producing steel-in-copper wires by flux activating method and its apparatus |
| US20040247865A1 (en) * | 2001-07-27 | 2004-12-09 | Federico Pavan | Electrolytic process for depositing a layer of copper on a steel wire |
| CN1913046A (en) * | 2006-08-03 | 2007-02-14 | 仲庆 | Preparation method of copper covered steel woven wire special for communication cable shielding layer |
| CN101303923A (en) * | 2008-07-07 | 2008-11-12 | 张荣良 | Technique for producing high-strength copper covered steel conductor for coaxial cable inner core wire |
| CN101763916A (en) * | 2009-12-30 | 2010-06-30 | 甘肃天拓冶金科技有限公司 | Production method for copper-clad steel double-metal wire |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177871A (en) * | 2017-04-23 | 2017-09-19 | 唐世群 | A kind of high voltage electric transmission cable steel core preprocess method |
| CN107442972A (en) * | 2017-09-23 | 2017-12-08 | 芜湖恒泰有色线材股份有限公司 | Continuous annealing production technology is drawn by the company that a kind of welding wire continues tube reducing |
| CN108062992A (en) * | 2017-11-07 | 2018-05-22 | 邢台钢铁有限责任公司 | Copper clad steel composite shielding cable steel wire rod and its production method |
| CN116043094A (en) * | 2023-01-09 | 2023-05-02 | 鞍钢股份有限公司 | Copper-clad steel wire manufacturing method for improving heat treatment performance of intermediate wire |
| CN116043094B (en) * | 2023-01-09 | 2024-09-13 | 鞍钢股份有限公司 | Copper-clad steel wire manufacturing method for improving heat treatment performance of intermediate wire |
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Application publication date: 20121205 |