Forming device of low-melting-point metal sample for light-gas gun experiment and using method

Abstract

The invention relates to the technical field of light-gas gun experiments, particularly relates to a forming device of a low-melting-point metal sample for a light-gas gun experiment and a using method. The device comprises a forming top cover, a forming cylinder and a forming base, a heating filter chamber is arranged at the bottom of the forming top cover; an electric heating unit is embedded inthe heating and filtering chamber, an overflow hole is formed in the side wall of the heating and filtering chamber, a plug is arranged on the side wall of the forming cylinder, plane barriers are symmetrically arranged on the inner wall of the forming cylinder, a replaceable base table is arranged at the top of the forming base, and a probe rod is arranged at the top of the replaceable base table. According to the invention, in the sample melting and forming process, the purification of the sample is realized; the formed sample can be fixed more easily, a probe preformed hole is reserved inthe sample, a trigger probe can be conveniently inserted into the probe preformed hole of the sample in a light-gas gun experiment, the time when a flying piece reaches the surface of the sample in the light-gas gun experiment is accurately predicted, and a later-period measuring device is assisted in setting a reasonable recording time period.

Description

technical field [0001] The invention relates to the technical field of light gas cannon experiments, in particular to a forming device and a use method for low-melting-point metal samples used in light gas cannon experiments. Background technique [0002] The earth is the home on which human beings live, and natural disasters such as earthquakes and volcanic eruptions endanger human survival. Therefore, exploring the dynamics of the earth's interior is one of the important scientific research directions. As we all know, the deep part of the earth is in a state of high temperature and high pressure, so the study of material properties (viscosity, strength) under high temperature and high pressure conditions is an important subject of geodynamics. Usually in the laboratory, based on the hydrogen cannon, the shock wave disturbance method can be used to study the visco-elasticity of materials under high temperature and high pressure conditions. In order to establish a set of exp...

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Problems solved by technology

The key link of the shock wave perturbation method is to prepare experimental samples with sinusoidal surfaces. Metals with high hardness can be processed by wire cutting technology. As far as tin is concerned, due to its soft texture, the fixture on the lathe is very easy to deform it, and it is impossible to use the lathe to process the desired shape.

[0003] In addition, in the process of preparing experimental samples, since some samples contain impurities, if no purification treatment is carried out, it will have a great impact on the light gas cannon experiment. It is carried out separately from sample purification, which increases the experimental preparation time, prolongs the experimental cycle, and reduces the efficiency of experimental research

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