Aiming at the problem of tensile mechanical property testing of metal materials in vacuum deep low temperature environment,a kind of tensile testing machine which can be used in vacuum deep low temperature environment is designed.The testing machine is built into the vacuum chamber.The G-M two-stage refrigerator is used as the cold source,and the sample is cooled by heat conduction.In order to verify the reliability and safety of the device,the finite element analysis software is used to analyze the strength of the device.In order to ensure that the samples can achieve the deep low temperature condition,the finite element analysis software is used to carry out the steady-state thermal analysis of the samples.The results of simulation analysis show that the structural design of the device is reasonable and the sample temperature can meet the requirements,which provides theoretical support for the design of the device.
关键词
深低温/拉伸试验机/强度分析/热分析
Key words
deep low temperature/tensile testing machine/strength analysis/thermal analysis
维普
万方数据