Preparation method of thin multi-layer explosive welding composite plate

Abstract

The invention provides a preparation method of a thin multi-layer explosive welding composite board, which comprises the following steps of: reasonably sealing two ends of a gap between a thin multi-layer board (4) and a substrate (6) by using sealing strips, and vacuumizing to form a vacuum gap environment (5); and a buffer plate (3) is placed on the thin compound plate, so that the thin compound plate is prevented from being damaged by high temperature and impact force instantaneously generated by conventional explosive welding. Compared with a traditional preparation method, the method has the advantages that the thin compound plate can be effectively prevented from being broken and ablated by placing the buffer plate, and excessive energy generated by explosive explosion can be absorbed, so that the explosive velocity of the explosive can be selected more freely. And meanwhile, a local vacuum explosive welding environment is formed in the gap of the base compound plate to produce the compound plate, so that the damage or expansion breakage of the thin compound plate caused by unsmooth exhaust is avoided. Fracture and surface damage of the thin composite plate and the base plate are effectively prevented, and the bonding quality of the thin composite plate is guaranteed.

Description

technical field [0001] The invention belongs to the field of explosive welding and relates to a method for preparing a thin clad explosive welding composite plate. Background technique [0002] Explosive welding is a commonly used welding method. Its working principle is to use the impact force generated by the explosion of explosives to accelerate the cladding material, so that the cladding material collides with the base material at high speed in a short time to generate high temperature and high pressure, so as to achieve the effect of welding composite. . The characteristic of this welding method is that it can weld multiple metal materials with the same or different properties firmly and efficiently in a very short time, so as to manufacture bimetallic or even multimetal composite materials with a wide range of uses. Composite materials made of two or more different metals are called multimetal composites, which are characterized by low density, relatively high mechani...

AI Technical Summary

Problems solved by technology

However, large-scale explosive welding often uses hundreds of kilograms or even tons of explosives. If a vacuum explosion is carried out in a rigid closed space, it is unbearable in terms of production cost and production efficiency.

Images