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A kind of preparation method of copper-zinc composite strip

A composite strip, copper-zinc technology, applied in the direction of metal rolling, etc., can solve the problems of insufficient bonding strength and low composite sheet strength, and achieve the effects of good mechanical properties, improved metallurgical bonding quality, and simple and convenient operation

Active Publication Date: 2016-06-08
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing copper-zinc composite strips, which solves the problem of low strength of the composite strip caused by insufficient bonding strength when the zinc sheet is directly combined with the copper sheet

Method used

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  • A kind of preparation method of copper-zinc composite strip

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Embodiment 1

[0022] The preparation method of the copper-zinc composite strip of the present embodiment comprises the following steps:

[0023] 1) After the surface impurities are removed from the zinc ingot, it is smelted at 480°C to form a zinc liquid;

[0024] 2) making the zinc liquid obtained in step 1) into a semi-solid slurry;

[0025] 3) Preheat the surface-treated copper plate at 400°C, pour the slurry obtained in step 2) on the preheated copper plate, and roll it with a roll with a reduction of 50% at a rolling speed of 75mm / min, that is.

[0026] The composite strip continuous casting device realizing the above-mentioned preparation method of the present embodiment, such as figure 1 As shown, it includes a crucible 1, a vibrating pulping device 9, a heat conduction roller 8 and a rolling device 5, the bottom of the crucible 1 is provided with a liquid outlet, and the liquid outlet communicates with the liquid inlet of the vibrating pulping device 9, The slurry outlet of the ...

Embodiment 2

[0029] The preparation method of the copper-zinc composite strip of the present embodiment comprises the following steps:

[0030] 1) After the surface impurities are removed from the zinc ingot, it is smelted at 420°C to form a zinc liquid;

[0031] 2) making the zinc liquid obtained in step 1) into a semi-solid slurry;

[0032] 3) Preheat the surface-treated copper plate at 500°C, pour the slurry obtained in step 2) on the preheated copper plate, and roll it with a roll with a reduction of 35% at a rolling speed of 100mm / min, that is.

[0033] The composite strip continuous casting device for realizing the above preparation method in this embodiment is the same as that in Embodiment 1.

Embodiment 3

[0035] The preparation method of the copper-zinc composite strip of the present embodiment comprises the following steps:

[0036] 1) After the surface impurities are removed from the zinc ingot, it is smelted at 450°C to form a zinc liquid;

[0037] 2) making the zinc liquid obtained in step 1) into a semi-solid slurry;

[0038] 3) Preheat the surface-treated copper plate at 600°C, pour the slurry obtained in step 2) on the preheated copper plate, and roll it with a roll with a reduction of 20% at a rolling speed of 50mm / min, that is.

[0039] The composite strip continuous casting device for realizing the above preparation method in this embodiment is the same as that in Embodiment 1.

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Abstract

The invention discloses a method for preparing a copper-zinc composite strip, which comprises the following steps: 1) melting the zinc ingot at 420-480°C to form zinc liquid after removing surface impurities; 2) melting the zinc ingot obtained in step 1). The zinc liquid is made into a semi-solid slurry; 3) The slurry obtained in step 2) is poured on the preheated copper plate, rolled and pulled out, and the product is obtained. In the preparation method of the copper-zinc composite strip of the present invention, the zinc liquid is first made into a semi-solid slurry, and then metallurgically compounded with solid copper under pressure conditions, so that the formed bonding interface layer is relatively thin, and the thickness is lower than 10 μm; The problem of thick bonding interface layer and low strength of the clad plate caused by directly compounding the zinc liquid with the copper plate significantly improves the metallurgical bonding quality of the copper-zinc clad strip, effectively improves the strength of the copper-zinc clad strip, and realizes continuous Production.

Description

technical field [0001] The invention belongs to the technical field of composite plates, and in particular relates to a preparation method of copper-zinc composite plates and strips. Background technique [0002] Double (multi-layer) metal composite material is a new type of material prepared by using composite technology to make two or more metals with different physical, chemical and mechanical properties realize firm metallurgical bonding at the interface. The original performance characteristics of each layer of material make its physical, chemical and mechanical properties superior to those of a single material, improving the overall performance of the material. The rolling methods of clad plates and strips include hot rolling cladding method, cold rolling cladding method, powder rolling cladding method, asynchronous rolling cladding method, cladding rolling method, explosive cladding method, etc. Problems such as long production process, unstable composite quality, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/46B22D11/114
Inventor 周志红赵培峰张亚李红霞宋克兴张学宾贾淑果周延军张彦敏国秀花
Owner HENAN UNIV OF SCI & TECH
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