Preparation method for double-metal compound wire

A composite wire and bimetal technology, applied in metal rolling and other directions, can solve the problems of uneven outer wall thickness, poor welding, radial opening, etc., to improve product quality, simple production equipment, and fast deformation speed Effect

Inactive Publication Date: 2016-06-29
有研科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process is prone to defects such as uneven wall thickness of the outer layer after extrusion, bending, triangular edges, radial openings, longitudinal scratches, and poor welding.

Method used

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  • Preparation method for double-metal compound wire
  • Preparation method for double-metal compound wire
  • Preparation method for double-metal compound wire

Examples

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Effect test

preparation example Construction

[0038] The preparation method of the bimetallic composite wire rod of the present invention, at first put together two metal pipes and rods with different materials after surface treatment, and then, as figure 1 As shown, the three-roll planetary rolling mill is used to roll the pipe 1 and the bar 2 that are nested together, pass through the roll 3, pass through the diameter reducing section I, the concentrated deformation section II, the finishing section III and the rounding section IV, so that The pipe material 1 and the bar material 2 are combined together to obtain a bimetallic composite billet. After rolling, the diameter of the composite billet is 12-40mm, and the length can reach more than 20m. The bimetallic composite billet rolled by the three-roll planetary rolling mill is rolled again with a multi-stand Y rolling mill or a vertical vertical roller mill, and rolled into a bimetallic composite wire rod with a diameter of about 5mm. Before the rolling mill, the on-line...

Embodiment 1

[0046] Preparation of pure titanium-clad copper bimetallic composite wire:

[0047] (1) Pre-treatment: the specification of pure titanium tube is 60mm in diameter, 5mm in wall thickness, the specification of copper rod is 49.5mm in diameter, the total gap between pipe and rod is 0.5mm, and the length is 5m. Use 4% (mass percentage) NaOH solution to The pure titanium tube and the red copper rod are degreased, the pure titanium pipe is pickled with 20% (mass percentage) HNO3+7% (mass percentage) HF solution, and the red copper rod is pickled with 12% (mass percentage) HCl solution, and then with A wire brush grinds the inner surface of the pure titanium tube and the outer surface of the copper rod to form a fresh metal matrix;

[0048] (2) Combination of the outer metal tube and the inner bar: insert the polished copper rod into the pure titanium tube;

[0049] (3) Planetary rolling and compounding: a three-roll planetary rolling mill is used to roll the combination of pure tit...

Embodiment 2

[0053] Preparation of pure titanium-clad No. 20 steel bimetallic composite wire:

[0054] (1) Pretreatment: the specification of pure titanium tube is 40mm in diameter, the wall thickness is 4mm, the specification of No. 20 steel rod is 31.2mm in diameter, the total gap between pipe and bar is 0.8mm, and the length is 6m, with 5% NaOH (mass percentage ) solution for degreasing pure titanium tubes and No. 20 steel rods, and pure titanium tubes with 20% HNO 3 (mass percentage)+7%HF (mass percentage) solution carries out pickling, No. 20 steel bars use 10% H 2 SO 4 (mass percentage) solution carries out pickling, then with steel wire brush the inner surface of pure titanium tube and the outer surface of No. 20 steel rods are polished out fresh metal matrix;

[0055] (2) Combination of outer layer metal tube and inner layer bar: Put the polished No. 20 steel rod into the pure titanium tube;

[0056] (3) Planetary rolling composite: use a three-roller planetary rolling mill to r...

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Abstract

The invention relates to a preparation method of a bimetal composite wire, belonging to the field of bimetal composite wire preparation. In this method, two metal pipes and bars of different materials are surface-treated and nested together, and then the pipes and bars nested together are rolled by a three-roller planetary rolling mill, so that the pipes and bars are combined together. , to obtain a bimetallic composite billet; the bimetallic composite billet is rolled again with a multi-stand Y rolling mill or a vertical roller mill, and rolled into a bimetallic composite wire rod with a diameter of 4.5-5.5mm; The metal composite wire is drawn and processed to prepare a bimetal composite wire with a diameter of 0.5 mm to 3 mm. A series of bimetallic composite wires such as titanium-clad copper bimetallic composite wires, titanium-clad steel bimetallic composite wires, and copper-clad aluminum bimetallic composite wires can be prepared. The bimetallic composite wires obtained by this method have high bonding strength between the two metals. The production equipment is simple, flexible and low in cost.

Description

technical field [0001] The invention relates to a preparation method of bimetallic composite wires, in particular to a production process applicable to titanium-clad copper, titanium-clad steel and copper-clad aluminum bimetallic composite wires, and belongs to the field of bimetallic composite wire preparations. Background technique [0002] The nature of the composite wire is that the outer layer is clad or plated with a layer of metal, and another metal material is used as the core wire to reduce the amount of scarce resources and improve the overall performance. The high strength of the core wire and the conductivity of the cladding layer are used. The purpose of reducing the weight of the wire per unit length without lowering the standard. Researchers attach great importance to the research of composite wires. No matter it is preparation technology or alternative materials, the development and application of composite wires have made rapid progress. [0003] At present...

Claims

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Application Information

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IPC IPC(8): B21C37/04B21B1/16
Inventor 梁贺李德富闫晓东陈松杨银
Owner 有研科技集团有限公司
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