CN101763916A - Production method for copper-clad steel double-metal wire - Google Patents
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Abstract
The invention discloses a production method for a copper-clad steel double-metal wire, which includes the steps as follows: straightening a steel core, then removing rust, cleaning and mechanically polishing; heating and melting electrolytic copper, heating the steel core, then horizontally and continuously casting a coating copper layer; heating the copper-clad steel and implementing quick solid solution treatment; continuously pulling the copper-clad steel wire for a plurality of times to lead the diameter of a product to reach 4mm-26mm; annealing the pulled copper-clad steel wire and pulling a die to a specification needed by a finished product. The steel and copper in the product are connected in a melting way by malleable metallurgy and an interface can be completely and firmly combined to become a single compound. The pulling of the double-metal wire is just like pulling of a single metal wire. The invention can coat any products with different materials and different copper layer thicknesses, can meet the requirements of relevant industries on product quality and performances, can produce products with large diameter and long length, and does not pollute the environment. The production method for the copper-clad steel double-metal wire has the advantages of less equipment investment, quick effect and stable performance; moreover, the production method for the copper-clad steel double-metal wire can meet the high requirements on industries like war industry, high-speed railway, communications, electron and electric power, etc.
Description
Technical field
The present invention relates to the material technology field, be mainly used in the copper-clad steel double-metal wire of railway, the production technology of alloy cable, be specially a kind of production method of copper-clad steel double-metal wire.
Background technology
Copper-clad steel double-metal wire (hereinafter to be referred as copper covered steel) is a kind of novel electric wire.It not only has the excellent conducting performance of copper, and has the high-strength characteristic of steel again.Especially in industries such as communication, electronics, electric power vast market is arranged, developed countries generally adopts in industries such as military project, high-speed railway, telecommunications.In China, in the manufacture of materials field, for various reasons, the production of bimetallic material producing steel-in-copper wires still belongs to blank.The annual foreign exchange of all employing some of country, the product that import is relevant.Domesticly intend to introduce the production line of high-quality bimetallic material project and production technology accordingly about industry, all because of selling at exorbitant prices, that cost is excessive, technology is not transferred the possession of etc. is former thereby can't implement.
At present, along with deeply carrying out that railway electrification is transformed, the research and development of producing steel-in-copper wires have been proposed urgent requirement with producing, relevant department of the railway system once repeatedly proposed to introduce advanced foreign technology and production line as early as possible, to guarantee to obtain volume shipment.For this reason, country classifies these purpose research and development and suitability for industrialized production as the new and high technology project of focus development and encouragement.The developing direction of railway is constantly to develop to high speed, heavy duty, electrified direction, this just proposes high-level requirement to electrification railway contact net and relevant parts, must have higher mechanical strength, better electric property and more smooth-going reliable cable, with speed-raising and the traffic safety of guaranteeing electric railway.At present, the method for production of copper Baogang mainly contains three kinds both at home and abroad: copper strips welding coating method, galvanoplastic and dip coating.
Copper strips welding coating method need adopt high-quality copper strips to be coated on the skin of steel wire, after the argon arc welding welding, draws again, and technology difficulty is big, the processing cost height.
Galvanoplastic have the energy consumption height, and pollution is arranged, the shortcoming that product quality is of low grade, the product purpose field is narrow.
More than the fatal quality problems of two kinds of technology and product be copper-clad steel double-metal wire in conjunction with insecure, in crooked and coiling number of times one timing, be easy to cause copper steel to separate, and the firm degree of a copper steel combination most important quality detecting index of this product exactly.
Dip coating is the external at present state-of-the-art method of producing steel-in-copper wires of producing, but domestic equipment and technology still do not reach the technological requirement that dip coating is produced producing steel-in-copper wires at present, if introducing external equipment then invests excessive, and abroad most company does not generally transfer the possession of this technology, causes the production of China's high-quality producing steel-in-copper wires can not to be achieved and to develop always.
Summary of the invention
Technical problem to be solved by this invention be exactly during copper covered steel is produced bimetallic in conjunction with unstable fatal quality problems, thereby provide a kind of technology to compare to have that investment is little, instant effect, cost are low, a kind of method of producing copper-clad steel double-metal wire of the quality requirement that can satisfy final products fully with dip coating.
Technical problem of the present invention adopts following technical proposals to solve:
A kind of production method of copper-clad steel double-metal wire is characterized in that step production as follows:
A, steel core is carried out the physics alignment, do rust cleaning, decontamination and mechanical polishing again and handle;
B, cathode copper is heated to 1100 ℃ of-1200 ℃ of fusings, the steel core of polishing is heated to 650 ℃--750 ℃, carry out horizontal casting and coat the copper layer, the copper layer thickness that makes coating is 0.5mm--7.5mm;
C, step b gained copper covered steel is heated to 650 ℃--carry out quick solid solution treatment in second at 5-15 after 1050 ℃, make the complete strong bonded in bimetallic interface, realize between copper and the steel metallurgical welding becoming single complex;
D, the producing steel-in-copper wires after the solid solution is carried out the continuous several times drawing, make the product diameter reach 4mm--26mm;
E, producing steel-in-copper wires is heated to 700 ℃-800 ℃ anneals, make the cable after the drawing have stable conductance, the product appearance forms the anti-oxidation protection layer;
F, the wire rod after will annealing carry out die drawn according to the required specification of product and are finished product.
Production method of the present invention is compared with galvanoplastic, dip coating, hot rolling method and copper strips coating method, has following characteristics:
(1), be the metallurgical welding of Drawability between copper and the steel, the complete strong bonded in interface becomes single complex, draws and dials bimetallic wire as drawing transfer slip one metal wire;
(2), according to the difference of purposes, can coat unlike material arbitrarily, the product of different Cu layer thickness can satisfy the requirement of relevant industries to product quality and performances, conductance is 10%-85%.
(3), can reach specifications different between the 0.3mm-26mm, through drawing to dial but production major diameter, length product;
(4), this process using novel mechanical eliminates rust environmentally safe.
(5), equipment investment is little, cost is low, instant effect, steady quality, large-scale production is out of question.
(6), high-quality copper-clad steel double-metal wire can satisfy the high request of industries such as military project, high-speed railway, communication, electronics, electric power, filled up the blank of the high-quality bimetallic wire of China.
Embodiment
Below in conjunction with embodiment the present invention is further elaborated:
Embodiment 1
With production tensile strength is 1000N/MM, and conductance is 38%-42%; Diameter is that the cable of 0.3mm is an example, and selecting diameter for use is the steel core of 7mm and the tough cathode of 40% ratio.
1, at first steel core is carried out the physics alignment on straightener, again steel core is done mechanical derusting, decontamination and mechanical polishing;
2, cathode copper is heated to 1150 ℃ of fusings in main frequency furnace, the steel core of polishing is heated to 750 ℃ carries out horizontal casting, make the copper layer of coating reach 1.5mm thickness;
3, producing steel-in-copper wires is coiled into admission machine within 15 seconds, put into cold water after disk is put into the solid solution stove and is heated to 1050 ℃ and carry out solid solution, make the complete strong bonded in bimetallic interface, thereby realize that the metallurgical welding of Drawability becomes single complex between copper and the steel;
4, the copper covered steel after the solid solution being carried out the continuous several times drawing with 850 stretching-machines and 560 stretching-machines makes the product diameter reach 4mm;
5, the wire rod after the drawing is put into the heating under 720 ℃ of vacuum gas filling induction heater and annealed half an hour, annealing is in order to guarantee that the cable after the drawing has stable conductance;
6, the wire rod after will annealing is drawn into the producing steel-in-copper wires that diameter is 0.3mm with 450 spinner block tenside equipments, and all process steps finishes.
Embodiment 2
With production tensile strength is that the 1000N/MM conductance is 10%; Diameter is that earth cable or the lightning-arrest rod of 15mm is example, and selecting diameter for use is that the steel core of 18mm and ratio are 10% tough cathode.
1, at first steel core is carried out the physics alignment on straightener, again steel core is done decontamination and mechanical polishing;
2, cathode copper is heated to 1100 ℃ of fusings in main frequency furnace, the steel core after the polishing is heated to 750 ℃ with induction heater carries out horizontal casting and make the copper layer of coating reach 0.5mm thickness;
3, producing steel-in-copper wires is coiled into admission machine within 5 seconds, put into cold water after disk is put into the solid solution stove and is heated to 650 ℃ and carry out solid solution and make the complete strong bonded in bimetallic interface, thereby realize that the metallurgical welding of Drawability becomes single complex between copper and the steel;
4, the copper covered steel after the solid solution being carried out the continuous several times drawing with 850 stretching-machines and 560 stretching-machines makes the product diameter reach 18mm;
5, the wire rod after the drawing is put into the heating under 700 ℃ of vacuum gas filling induction heater and annealed half an hour, annealing is in order to guarantee that the cable after the drawing has stable conductance;
6, the wire rod after will annealing is drawn into the producing steel-in-copper wires that diameter is 15mm with 450 spinner block tenside equipments, and all process steps finishes.
Embodiment 3
With production tensile strength is that the 900N/MM conductance is 80; Diameter is that military project or the civilian cable of 6mm is example, and selecting diameter for use is that the steel core of 4mm and ratio are 80% tough cathode.
1, at first steel core is carried out the physics alignment on straightener, again steel core is done decontamination and mechanical polishing; Steel core after the polishing is heated to 700 ℃ degrees centigrade with induction heater;
2, cathode copper is heated to 1200 ℃ of fusings in main frequency furnace, the heating steel core is carried out horizontal casting make the copper layer of coating reach 6mm thickness;
3, producing steel-in-copper wires is coiled into disk with admission machine, within 15 seconds, put into cold water after putting into the solid solution stove and being heated to 850 ℃ and carry out solid solution and make the complete strong bonded in bimetallic interface, thereby realize that the metallurgical welding of Drawability becomes single complex between copper and the steel;
4, the copper covered steel after the solid solution being carried out the continuous several times drawing with 850 stretching-machines and 560 stretching-machines makes the product diameter reach 12mm;
5, the wire rod after the drawing is put into the heating under 800 ℃ of vacuum gas filling induction heater and annealed half an hour, annealing is in order to guarantee that the cable after the drawing has stable conductance;
6, the wire rod after will annealing is drawn into the producing steel-in-copper wires that diameter is 6mm with 450 spinner block tenside equipments, and all process steps finishes.
Embodiment 4
With production tensile strength is that the 1000N/MM conductance is 38%-42%; Diameter is that the railway cable of 26mm is an example, and selecting diameter for use is the steel core of 21mm and the tough cathode of 40% ratio.
1, at first steel core is carried out the physics alignment on straightener, again steel core is done decontamination and mechanical polishing; Steel core after the polishing is heated to 650 ℃ with induction heater;
2, cathode copper is heated to 1200 ℃ of fusings in main frequency furnace, the steel core of polishing is heated to 750 ℃ carries out horizontal casting, make the copper layer of coating reach 7.5mm thickness;
3, producing steel-in-copper wires is coiled into admission machine within 15 seconds, put into cold water after disk is put into the solid solution stove and is heated to 1050 ℃ and carry out solid solution, make the complete strong bonded in bimetallic interface, thereby realize that the metallurgical welding of Drawability becomes single complex between copper and the steel;
4, the copper covered steel after the solid solution being carried out the continuous several times drawing with 850 stretching-machines and 560 stretching-machines makes the product diameter reach 26mm;
5, the wire rod after the drawing is put into the heating under 720 ℃ of vacuum gas filling induction heater and annealed half an hour, annealing is in order to guarantee that the cable after the drawing has stable conductance;
6, the wire rod after will annealing is drawn into the producing steel-in-copper wires that diameter is 22mm with 450 spinner block tenside equipments, and all process steps finishes.
Claims (3)
1. the production method of a copper-clad steel double-metal wire is characterized in that step production as follows:
A, steel core is carried out the physics alignment, do rust cleaning, decontamination and mechanical polishing again and handle;
B, cathode copper is heated to 1100 ℃ of-1200 ℃ of fusings, the steel core of polishing is heated to 650 ℃--750 ℃, carry out horizontal casting and coat the copper layer, the copper layer thickness that makes coating is 0.5mm-7.5mm;
C, step b gained copper covered steel is heated to 650 ℃--carry out quick solid solution treatment in second at 5-15 after 1050 ℃, make the complete strong bonded in bimetallic interface, realize between copper and the steel metallurgical welding becoming single complex;
D, the producing steel-in-copper wires after the solid solution is carried out the continuous several times drawing, make the product diameter reach 4mm--26mm;
E, producing steel-in-copper wires is heated to 700 ℃-800 ℃ anneals, make the cable after the drawing have stable conductance, the product appearance forms the anti-oxidation protection layer;
F, the wire rod after will annealing carry out die drawn according to the required specification of product and are finished product.
2. the production method of copper-clad steel double-metal wire according to claim 1 is characterized in that among the described step e producing steel-in-copper wires being heated to 720 ℃ carries out annealing in process.
3. the production method of copper-clad steel double-metal wire according to claim 1 is characterized in that the derusting process among the described step a is mechanical derusting.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102063968A (en) * | 2010-11-30 | 2011-05-18 | 苏州市南方欣达双金属材料有限公司 | Method for processing bimetallic conducting bar |
| CN102354580A (en) * | 2011-09-28 | 2012-02-15 | 西安理工大学 | Method for preparing copper cladding steel wire rod by utilizing casting post-heating rotary swaging technology |
| CN102601325A (en) * | 2012-04-16 | 2012-07-25 | 金川集团有限公司 | Method for preparing copper-aluminum composite bar by means of horizontally continuous casting |
| CN102810358A (en) * | 2011-05-31 | 2012-12-05 | 常州市金利特种焊丝有限公司 | Production method of copper covered steel wire for electronic product connecting line |
| CN103643131A (en) * | 2013-11-20 | 2014-03-19 | 江苏天舜金属材料集团有限公司 | Steel wire for insulation and anticorrosion steel wire mesh, and application method thereof |
| CN104240839A (en) * | 2013-06-18 | 2014-12-24 | 嘉兴嘉合电力设备有限公司 | Method and system for manufacturing copper clad steel wire |
| CN105258724A (en) * | 2015-09-30 | 2016-01-20 | 中国航空工业集团公司沈阳发动机设计研究所 | Composite armored sensor and manufacturing method thereof |
| CN110042357A (en) * | 2019-05-22 | 2019-07-23 | 河南理工大学 | Wireless charging alloy wire preparation method and the multi-target magnetic control sputtering device of preparation |
| CN113560358A (en) * | 2021-06-29 | 2021-10-29 | 鞍钢股份有限公司 | Production method of clad copper-clad steel |
Family Cites Families (3)
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| CN1095969A (en) * | 1994-04-04 | 1994-12-07 | 江阴金属制品研究所 | The manufacture method of single wire drawing high-strength copper-clad steel wire |
| CN1067613C (en) * | 1998-11-03 | 2001-06-27 | 东北大学 | Final casting-rolling method for forming steel-in-copper bimetal material |
| CN1283856A (en) * | 2000-09-08 | 2001-02-14 | 曲均绪 | Technology for making electrically conductive bimetal steel-in-copper wire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063968A (en) * | 2010-11-30 | 2011-05-18 | 苏州市南方欣达双金属材料有限公司 | Method for processing bimetallic conducting bar |
| CN102810358A (en) * | 2011-05-31 | 2012-12-05 | 常州市金利特种焊丝有限公司 | Production method of copper covered steel wire for electronic product connecting line |
| CN102354580A (en) * | 2011-09-28 | 2012-02-15 | 西安理工大学 | Method for preparing copper cladding steel wire rod by utilizing casting post-heating rotary swaging technology |
| CN102354580B (en) * | 2011-09-28 | 2012-11-07 | 西安理工大学 | Method for preparing copper cladding steel wire rod by utilizing casting post-heating rotary swaging technology |
| CN102601325A (en) * | 2012-04-16 | 2012-07-25 | 金川集团有限公司 | Method for preparing copper-aluminum composite bar by means of horizontally continuous casting |
| CN104240839A (en) * | 2013-06-18 | 2014-12-24 | 嘉兴嘉合电力设备有限公司 | Method and system for manufacturing copper clad steel wire |
| CN103643131A (en) * | 2013-11-20 | 2014-03-19 | 江苏天舜金属材料集团有限公司 | Steel wire for insulation and anticorrosion steel wire mesh, and application method thereof |
| CN103643131B (en) * | 2013-11-20 | 2015-09-09 | 江苏天舜金属材料集团有限公司 | A kind of insulating corrosion woven wire steel wire and application method thereof |
| CN105258724A (en) * | 2015-09-30 | 2016-01-20 | 中国航空工业集团公司沈阳发动机设计研究所 | Composite armored sensor and manufacturing method thereof |
| CN105258724B (en) * | 2015-09-30 | 2018-07-13 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of production method of compound armouring sensor |
| CN110042357A (en) * | 2019-05-22 | 2019-07-23 | 河南理工大学 | Wireless charging alloy wire preparation method and the multi-target magnetic control sputtering device of preparation |
| CN113560358A (en) * | 2021-06-29 | 2021-10-29 | 鞍钢股份有限公司 | Production method of clad copper-clad steel |
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| CN101763916B (en) | 2011-08-03 |
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