Plasma ablation performance test device

Abstract

The invention relates to a plasma ablation performance test device, which belongs to the technical field of ablation testing. The plasma ablation performance test device comprises a gland, a sample box inner sleeve, a sample box outer sleeve, an ejection rod and a supporting base, wherein the sample box inner sleeve and the sample box outer sleeve cooperate internally and externally, the gland isin threaded fit with the front end of the sample box outer sleeve and can compress the front end of sample box inner sleeve, the front end of the ejection rod is embedded in the sample box inner sleeve, and the rear end of the ejection rod is in threaded fit with the rear end of the sample box outer sleeve; one end of the supporting base is fixed to the sample box outer sleeve, and the other end is fixed to an ablation platform; one side, close to the pressing cover, on the sample box outer sleeve is provided with a water inlet pipeline, and one side, away from the gland, of the same is provided with a water outlet pipeline; and a water cooling circulation channel is opened between the sample box inner sleeve and the sample box outer sleeve; and a sample is placed at the front end of the sample box inner sleeve and is ejected by means of the ejection rod, and the central portion of the gland is of a hollow structure. The plasma ablation performance test device is resistant to ablation,has a good cooling circulation system, can withstand high temperature, can be reused, is convenient to disassemble and replace the sample, and can measure the back temperature of the sample during the test process.

Description

technical field [0001] The invention relates to a plasma ablation performance testing device, which belongs to the technical field of ablation testing. Background technique [0002] Composite materials (such as carbon / carbon composite materials, carbon / ceramic composite materials, etc.) have the characteristics of low ablation rate, high ablation heat, good thermal shock resistance and excellent high-temperature mechanical properties, and are commonly used heat-resistant materials for spacecraft and weapons . Plasma ablation can well simulate the low-pressure and high-enthalpy ablation state of composite materials, so it is often used to characterize and evaluate the ablation performance of composite materials. However, as the working environment of composite materials becomes more and more severe and the requirements for plasma ablation testing continue to increase, the existing plasma ablation testing equipment can no longer meet the requirements. Contents of the invent...

AI Technical Summary

Problems solved by technology

However, as the working environment of composite materials becomes more and more severe and the requirements for plasma ablation testing continue to increase, the existing plasma ablation testing equipment can no longer meet the requirements.

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