Method for preparing discharge plasma of metal laminated composite material

Abstract

The invention provides a method preparing discharge plasma of a metal laminated composite material and belongs to the technical field of the preparation of metal laminated composite materials. In the method, two or more types of bulk metals, of which the surfaces are simply treated, are used as raw materials to be combined, under conditions of vacuum or inert atmosphere and reasonably matched discharge plasma preparation process parameters and under an action of inverted high-speed flow of discharge shock waves generated by impulsive discharge, electrons and ions in electric fields, the surfaces to be combined of the bulk metals are punctured to a certain degree to make the surfaces to be combined quickly purified and activated and the metallurgical combination performed between the interfaces to be combined of the laminated bulk metals to make the bulk metals quickly combined and formed at a smaller pressure and at the low temperature, so that the metal laminated composite material with flat and straight interface, high combined strength and accurately controlled shape and size of products can be directly obtained. The method has the advantages of low requirement on the surface cleanliness of the metals to be combined, energy conservation and environmental protection, easy operation, strong repeatability, short flow and cycle and low cost.

Description

Technical field [0001] The invention relates to the technical field of preparation of metal layered composite materials, and in particular provides a method for preparing metal layered composite materials by discharge plasma. Background technique [0002] The metal layered composite material fully combines the respective advantages of two or more metals, has excellent physical properties, chemical properties and comprehensive mechanical properties, and has a wide range of applications in the national economy and national defense and military industries. The preparation methods of metal layered composite materials that have been publicly reported using bulk metals as raw materials include rolling + diffusion annealing, electroplating + annealing + rolling, explosive composite + heat treatment + rolling, seam welding composite + rolling + annealing Several other [Liu Xiaotao, et al. Laminated metal composite material production technology and its new progress. Materials Review, 200...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing metal layered composite material discharge plasma using bulk metal as raw material, so as to solve the problem of complex process, long cycle, serious metal waste and uniform interface size of the current metal layered composite material production. Poor performance, low interfacial bonding strength, high production cost, etc.