Opposite type explosion welding device and method of metal composite materials

Abstract

The invention relates to an opposite type explosion welding device and method of metal composite materials. The opposite type explosion welding device saves two thirds of explosive load, thereby greatly reducing the processing cost; the opposite type explosion welding device reduces the adverse effect of most of shock waves on the surrounding environment, thereby successfully solving the problem of explosion welding explosion field; the opposite type explosion welding device is easy to form a standard process flow, and composite boards which are successfully welded by opposite-way explosion welding almost do not contact with the ground, thus a ground base can be singly designed, thereby the opposite type explosion welding device can not only enhance the composite quality of an interface, but also repeatedly use the ground base by multiple times; and besides, the explosive thickness can be directly controlled by the distance between two composite boards without measuring the thickness of each point when charging the explosive like a parallel way. The opposite way eliminates parameters which are difficult to control by persons during explosion welding, and thereby the invention is convenient to form a whole process flow and a normative operation mode.

Description

Technical field [0001] The invention relates to a counter-type explosive welding device and a method thereof that uses the energy generated by the explosion of an explosive as an energy source to form a solid phase bonding interface between two metal plates to be welded. It belongs to the field of metal materials and welding technology. Background technique [0002] At present, explosive welding technology and explosive composite materials have been widely used in various fields such as petroleum, chemical industry, shipbuilding, electric power, aviation, aerospace, salt production, alkali production, metallurgy, atomic energy, mining, transportation, and machinery manufacturing. The current explosive welding methods generally adopt such as figure 1 (b) shows the parallel explosive welding device, and figure 1 (a) Angle method because its device is basically the same as (b), and the operation is slightly inconvenient, so it is generally not used in production practice, but occa...

AI Technical Summary

Problems solved by technology

Defects in the parallel method of explosive welding: low energy utilization rate, the shock wave generated by the explosive detonation propagates to the surroundings, and the energy of the downward-propagating high-pressure shock wave is absorbed by the double plate to form the energy required for plastic deformation and interface bonding, while In addition, more than 1 / 2 of the energy generated by the explosive detonation is dissipated from above

Although shock waves can quickly decay into sound waves, dozens of explosive welding manufacturers in my country have proved that the sound waves attenuated by these shock waves can still reach 140db 3 kilometers away from the detonation point, which seriously affects the safety of houses and the safety of ordinary people. daily life

At present, many countries have established explosion holes, but because the design and manufacture of explosion holes involve safety issues and huge investment, the popularization and application are limited; the process parameters of parallel explosive welding are difficult to stabilize and control, and the process parameters involved in explosive welding Mainly divided into four categories: charge parameters, material parameters, foundation parameters, installation parameters

Due to the parallel method, it is difficult to accurately control its charge parameters, foundation parameters and installation parameters. A little carelessness of the operator will cause changes in the above three types of parameters and cause welding failure

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