Copper/high-carbon steel composite material as well as special V-shaped gas protection cover, laser-assisted preparation method and application thereof

Abstract

The invention discloses a V-shaped gas protection cover special for a copper / high-carbon steel composite material. The V-shaped gas protection cover comprises a V-shaped shell (3) defined by a base plate (1), a covering plate (2) and side plates. The included angle between the copper strip and the high-carbon steel strip is 30-45 degrees. The invention further discloses the copper / high-carbon steel composite material, a laser-assisted preparation method of the copper / high-carbon steel composite material and application of the copper / high-carbon steel composite material in conductive springs and / or precision gaskets. According to the method, a melting layer is formed, dependence of copper / high-carbon steel rolling compounding on deformation is remarkably reduced, interface bonding of copper / high-carbon steel can be achieved under the extremely small rolling deformation, the problem of poor deformation coordination is avoided, an eddy current area is generated in the local position of the melting layer under the rolling effect, and the deformation coordination is improved. Further, a wave-shaped interface or a copper-steel transition layer is formed at the local position of the interface, which is similar to an explosive cladding transition layer, so that the interface bonding effect can be further enhanced.

Description

technical field [0001] The invention relates to a copper / high-carbon steel composite material, a special V-shaped gas shield, a laser-assisted preparation method and its application, and belongs to the technical field of metallurgical materials. Background technique [0002] Copper / steel composite materials have the advantages of both copper and steel, and are widely used in petrochemical, nuclear energy, bearings, electrical equipment and other fields. At present, the preparation methods of copper / steel composite materials mainly include explosive welding, diffusion welding, and rolling compounding. Among the above methods, the rolling compounding efficiency is high, and composite materials with stable performance and uniform thickness can be continuously produced, which has good application prospects and is the future development trend. However, due to the high deformation resistance, poor plasticity and weldability of high-carbon steel, it is difficult to directly prepar...

AI Technical Summary

Problems solved by technology

However, the amount of deformation required for rolling and compounding is relatively large, which is currently limited to copper / low carbon steel composite materials

For copper and high-carbon steel with large plasticity differences, on the one hand, high-carbon steel is difficult to deform, and on the other hand, the deformation coordination of the two is poor, so it is difficult for the two to achieve interface bonding directly through rolling, which restricts the copper / high-carbon steel Mass production and application of composite strips

In order to realize the rolling composite of copper / high carbon steel, explosive welding or diffusion welding is currently required to pre-assemble the billet, and then roll it, which adds an additional production process, the production cycle is longer, and the process is more cumbersome

Poor deformation coordination and large rolling deformation are the main technical problems faced by composite materials such as copper / high carbon steel

[0005] To sum up, due to the large amount of rolling deformation required and the poor coordination of deformation, it is difficult to directly prepare copper / high carbon steel composite materials by rolling, which limits its mass production.

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