Metal material low-temperature tensile test device and test method
A technology for tensile testing and metal materials, which is applied in the direction of measuring devices, analyzing materials, and using stable tension/pressure to test the strength of materials, etc., can solve the problem of high production costs, affecting the operability of low-temperature tensile tests, and the inability to guarantee tensile testing. The uniformity of the temperature of the stretched specimens and other issues can be achieved to reduce the cost of the test, reduce the cost of the tensile test, and achieve the effect of good temperature control ability
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[0040] The present invention will be further described below in conjunction with the drawings and embodiments.
[0041] Such as figure 1 , figure 2 As shown, the metal material low-temperature tensile testing device of the present invention includes a temperature measuring device 3, a low-temperature box 1, a low-temperature box refrigeration device 2 connected to the low-temperature box 1, and a tensile test fixture 4 connected to a tensile testing machine, The low temperature box 1 includes a box body 101, a working space 102 in the box, and a box door 103 arranged on the box body 101. The box body 101 is composed of an inner shell 104, an outer shell 105, and an insulation layer 106 arranged between the inner shell 104 and the outer shell 105. Composition; The tensile test fixture 4 includes an upper fixture 401 and a lower fixture 402. The upper fixture 401 is set on the top of the box 101 and extends into the working space 102 in the box, and the lower fixture 402 is set on ...
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