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Production method for copper-clad steel double-metal wire

A production method and technology of copper-clad steel, applied in the field of materials, can solve problems such as weak bimetal bonding, and achieve the effects of low cost, quick effect and small investment in equipment

Active Publication Date: 2010-06-30
GANSU TINTO METALLURGICAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is the fatal quality problem of weak bimetallic bonding in the production of copper-clad steel, so as to provide a process technology that has the advantages of small investment, quick effect, low cost and can fully satisfy the final product compared with the dip coating method. A method of producing copper-clad steel bimetallic wire rod according to quality requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Take the production of a cable with a tensile strength of 1000N / MM and a conductivity of 38%-42%; a diameter of 0.3mm as an example, a steel core with a diameter of 7mm and a 40% ratio of electrolytic pure copper are selected.

[0027] 1. First, the steel core is physically straightened on the straightening machine, and then the steel core is mechanically derusted, decontaminated and mechanically polished;

[0028] 2. Heat the electrolytic copper in a power frequency furnace to 1150°C to melt, and heat the polished steel core to 750°C for horizontal continuous casting, so that the coated copper layer reaches 1.5mm thickness;

[0029] 3. Coil the copper-clad steel wire into a disc with a wire take-up machine and put it in a solution furnace to heat it to 1050°C, then put it into cold water within 15 seconds for solid solution, so that the bimetallic interface is completely firmly bonded, thus achieving The ductile metallurgical welding between copper and steel becomes a single ...

Embodiment 2

[0034] Taking the production of a grounding cable or lightning rod with a tensile strength of 1000N / MM and a conductivity of 10%; a diameter of 15mm as an example, a steel core with a diameter of 18mm and a ratio of 10% electrolytic pure copper are selected.

[0035] 1. First, physically straighten the steel core on the straightening machine, and then decontaminate and mechanically polish the steel core;

[0036] 2. Heat the electrolytic copper in a power frequency furnace to 1100°C to melt, and heat the polished steel core to 750°C in an induction heating furnace for horizontal continuous casting to make the coated copper layer reach 0.5mm thickness;

[0037] 3. Coil the copper-clad steel wire into a disc with a wire take-up machine and put it in a solution furnace and heat it to 650℃, then put it in cold water within 5 seconds for solid solution, so that the bimetallic interface is completely firmly bonded, thereby achieving copper The ductile metallurgical fusion with steel become...

Embodiment 3

[0042] Taking the production of military or civilian cables with a tensile strength of 900N / MM and a conductivity of 80; a diameter of 6mm as an example, a steel core with a diameter of 4mm and a ratio of 80% electrolytic pure copper are selected.

[0043] 1. First, the steel core is physically straightened on the straightening machine, and then the steel core is decontaminated and mechanically polished; the polished steel core is heated to 700℃ with an induction heating furnace;

[0044] 2. Heat the electrolytic copper in a power frequency furnace to 1200°C to melt, and perform horizontal continuous casting on the heating steel core to make the coated copper layer reach 6mm thickness;

[0045] 3. Coil the copper-clad steel wire rod into a disc with a wire take-up machine, put it into a solution furnace and heat it to 850℃, then put it into cold water within 15 seconds for solid solution, so that the bimetallic interface is completely firmly bonded, thus achieving The ductile metallu...

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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 [0001] The invention relates to the technical field of materials, and is mainly used for the production technology of copper-clad steel bimetallic wires and alloy cables for railways, in particular to a production method of copper-clad steel bimetallic wires. Background technique [0002] Copper-clad steel bimetallic wire (hereinafter referred to as copper-clad steel) is a new type of conductive wire. It not only has the good electrical conductivity of copper, but also has the high strength characteristics of steel. Especially in the communication, electronics, power and other industries, there is a broad market, and foreign developed countries have been widely used in military industry, high-speed railway, electronic communication and other industries. In my country, in the field of material production, due to various reasons, the production of bimetallic copper-clad steel wire is still blank. The country uses a certain amount of foreign exchange every year to ...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B5/02H01B1/02C21D9/52
Inventor 张富平
Owner GANSU TINTO METALLURGICAL SCI & TECH
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