High-low temperature bending test device for pipe

Abstract

The invention belongs to the field of pipe testing, and discloses a high-low temperature bending test device for a pipe. The device comprises a high-low temperature test box, a support frame, a lock pipe fitting and rolling wheels; the support frame is arranged in the high-low temperature test box; the lock pipe fitting is arranged on the support frame and used for fixing a pipe; and the rolling wheels are arranged on the support frame and located below the lock pipe fitting, and the rolling wheels can move in a reciprocating mode in the first direction and are used for bending or loosening the pipe stretching out of the bottom of the lock pipe fitting. The high-low temperature cycle test and the bending fatigue test are combined, the testing period is short, the real using performance of the pipe can be reflected, and meanwhile the testing device is controllable in testing condition, easy to operate and stable in testing process.

Description

technical field

[0001] The invention relates to the field of pipe testing, in particular to a high-low temperature bending test device for pipes. Background technique

[0002] TPU (thermoplastic polyurethane elastomer rubber) pneumatic tubes are widely used in automotive interior parts, and they are the key connectors connecting the lumbar support and the airbag in the car seat. Therefore, there are certain performance requirements for the hardness, blasting performance, bending resistance, aging performance, low temperature performance and fatigue performance of TPU pneumatic tubes. At present, the above-mentioned performances of TPU pneumatic tubes are tested for each single performance through relevant experimental equipment. However, in the actual use of TPU pneumatic tubes, various conditions do not exist independently, and the existing test methods are static processes, it is difficult to simulate the real use of TPU pneumatic tubes, and cannot well reflect the perfor...

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