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Preparation method of copper-zinc composite plates and strips

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, achieve good mechanical properties, improve metallurgical bonding quality, and increase strength

Active Publication Date: 2014-02-05
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Preparation method of copper-zinc composite plates and strips

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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 preparation method of copper-zinc composite plates and strips. The method comprises the following steps of 1) removing surface impurities of zinc ingots and then smelting the zinc ingots at 420-480 DEG C to obtain liquid zinc; 2) manufacturing the liquid zinc obtained in the step 1) into semi-solid slurry; 3) pouring the slurry obtained in the step 2) onto preheated copper plates and then performing rolling to obtain the copper-zinc composite plates and strips. According to the preparation method of the copper-zinc composite plates and strips, firstly, the liquid zinc is made into the semi-solid slurry and then metallurgically composited with solid copper under pressure, the bonding interface layer is relatively thin and thinner than 10 mu m, so that the problems of low strength of composite plates and large thickness of the bonding interface layers due to the preparation process of directly compositing the liquid zinc with the copper plates can be solved, the metallurgical bonding quality of the copper-zinc composite plates and strips can be improved significantly, the strength of the copper-zinc composite plates and strips can be effectively improved and continuous production can be achieved.

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 Applications(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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