Three-point bending multi-sample continuous testing device for materials in liquid helium temperature zone
A three-point bending and testing device technology, applied in the direction of using a stable bending force to test the strength of materials, can solve the problems of high testing cost, large consumption of liquid helium, low efficiency, etc., and achieve high use efficiency and consumption of liquid helium. The effect of low volume and high degree of intelligence
Active Publication Date: 2016-08-03
SOUTHWESTERN INST OF PHYSICS +1
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Problems solved by technology
[0005] The technical problem to be solved in the present invention is: the existing three-point bending test device for materials in the liquid helium temperature zone can only test a single sample at one time, the efficiency is low, the consumption of liquid helium is large, and the test cost is high
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[0024] The three-point bending multi-sample continuous testing device for materials in the liquid helium temperature zone of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.
[0025] Such as figure 1 As shown, the three-point bending multi-sample continuous testing device for materials in the liquid helium temperature zone of the present invention includes: a low-temperature three-point bending test fixture 5, an electro-hydraulic servo fatigue testing machine 1, a rigid support 2, and a multi-sample automatic sample change mechanism 3 , computer control system 4, cryogenic Dewar 6, liquid injection output pipeline 7 and liquid helium level gauge 8.
[0026] The electro-hydraulic servo fatigue testing machine 1 includes: a cross beam, a rigid base and an actuator 9 . The cross beam and the rigid base are connected by two rigid columns to form the rigid frame of the electro-hydraulic servo fatigue testing machi...
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The invention belongs to the technical field of a material mechanical property test and relates to a liquid helium temperature zone material three-point bending multi-sample continuous testing device. The device comprises a three-point bending testing clamp, an electro-hydraulic servo fatigue testing machine, a rigid support, a multi-sample automatic sample-replacement mechanism, a computer control system, a low temperature Dewar flask and liquid injection and output pipes. The liquid helium temperature zone material three-point bending multi-sample continuous testing device solves the technical problem that the existing liquid helium temperature zone material three-point bending continuous testing device can only test a single sample by a loading process and consume a large amount of liquid helium. Through cooperation of the multi-sample automatic sample-replacement mechanism and the computer control system, the device provided by the invention realizes automatic replacement of multiple samples at a low temperature, can continuously test multiple samples by a loading process, can carry out a continuous three-point bending data test, has high use efficiency, saves a liquid helium use amount, can greatly reduce a test cost, can operate stably and accurately, and has a high intelligentization degree and a reliable structure.
Description
technical field [0001] The invention belongs to the technical field of material mechanical performance testing, and in particular relates to a multi-sample continuous testing device for three-point bending mechanical performance of materials in a liquid helium temperature zone. Background technique [0002] With the development of my country's controlled nuclear fusion, aerospace, superconducting technology and other fields, there are more and more engineering projects involving materials serving in extremely low temperature environments, among which superconducting technology is the core technology in the field of nuclear fusion engineering in the future One, the demand for cryogenic materials is increasing. At the same time, for metal materials that have been used in large quantities, it is necessary to test their low-temperature performance and improve the material performance database to expand their application range. [0003] The three-point bending test device is wide...
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IPC IPC(8): G01N3/20
Inventor 李鹏远韩石磊杨淑娟潘传杰侯炳林张博王敏
Owner SOUTHWESTERN INST OF PHYSICS