Non-metallic material frictional wear test device in high-pressure hydrogen environment

Abstract

The invention relates to non-metallic property test technologies and aims to provide a non-metallic material frictional wear test device in a high-pressure hydrogen environment. The device comprises amain test machine arranged in an environment box. The main test machine comprises a base, a horizontal reciprocating motion platform, a vertical loading device, a power device, a force sensor and a displacement sensor, wherein the base comprises a first side plate, a second side plate, a bottom plate and a top plate, the first side plate and the second side plate are arranged in the vertical direction, and the bottom plate and the top plate are arranged in the horizontal direction; the horizontal reciprocating motion platform comprises a horizontal guide rail, a horizontal sliding block and asample table, and the upper surface of the sample table is used for carrying a sample; the vertical loading device comprises a vertical guide rail, a vertical sliding block and a weight seat; and thepower device comprises a stepping motor and a lead screw. The device is simple and compact in structure and can control reciprocating displacement and sliding speed conveniently and precisely; loading force can be adjusted through weights; and frictional force and wearing depth can be collected dynamically in real time, and it is convenient to analyze the evolution characteristics and the influence law of sample surface frictional damage.

Description

technical field [0001] The invention relates to non-metal performance testing technology, in particular to a non-metal material friction and wear test device under high-pressure hydrogen environment. Background technique [0002] Hydrogen energy is a green and efficient secondary energy source, and has become an important part of the development of new energy sources. As an important application field of hydrogen energy, hydrogen fuel cell vehicles have become a hot spot in the development of new energy vehicles. At present, hydrogen is mainly stored in the form of high-pressure gas, and the storage pressure is mostly above 35MPa. Non-metallic O-rings have the advantages of simple structure, compact size, convenient manufacture, and low cost, and are widely used in the sealing of hydrogen systems, such as hydrogen storage tanks, valves, pipelines, compressors, etc. However, high-pressure hydrogen can have a degrading effect on materials. Existing studies have shown that n...

AI Technical Summary

Problems solved by technology

In recent years, relevant research groups have developed environment-controllable friction and wear testing machines. For example, Pei Zhaohui and others have developed a controllable atmosphere friction and wear testing machine. Experiments under high pressure hydrogen environment

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