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

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

Experimental program
Comparison scheme
Effect test

Example Embodiment

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

Example Embodiment

[0045] Example 1:

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

[0047] (1) Pretreatment: The diameter of the pure titanium tube is 60mm, the wall thickness is 5mm, the diameter of the copper rod is 49.5mm, the total gap between the tube and the bar is 0.5mm, and the length is 5m. Pure titanium tube and copper rod are degreasing, pure titanium tube is pickled with 20% (mass percentage) HNO3+7% (mass percentage) HF solution, copper rod is acid washed with 12% (mass percentage) HCl solution, and then used The inner surface of the pure titanium tube and the outer surface of the copper rod are polished with a wire brush to obtain a fresh metal matrix;

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

[0049] (3) Planetary rolling compound: The combination of pure titanium tube and red copper rod is rolled by a three-roll planetary rolling mill. The temperature is...

Example Embodiment

[0052] Example 2:

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

[0054] (1) Pretreatment: The diameter of the pure titanium tube is 40mm, the wall thickness is 4mm, the diameter of the No. 20 steel bar is 31.2mm, the total gap between the tube and the bar is 0.8mm, and the length is 6m. ) solution to remove oil from pure titanium tubes and 20 gauge steel rods, and use 20% HNO for pure titanium tubes 3 (mass percent) + 7% HF (mass percent) solution for pickling, 20# steel bar with 10% H 2 SO 4 (mass percentage) solution is pickled, and then the inner surface of the pure titanium tube and the outer surface of the No. 20 steel bar are ground to a fresh metal matrix with a wire brush;

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

[0056] (3) Planetary rolling and compounding: The combination of titanium tube and No. 20 steel bar is rolled by a thre...

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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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