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In-situ testing device and method for friction and wear of material under high-temperature prestress loading

A friction and wear, prestressing technology, applied in the direction of measuring devices, analyzing materials, testing wear resistance, etc., can solve the problems of low heating rate, unfavorable modular integration, complex structure, etc., to save energy, reduce heat spread, ensure The effect of accuracy

Pending Publication Date: 2022-02-18
JILIN UNIV
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Problems solved by technology

[0004] The invention provides an in-situ testing device and method for material friction and wear under high-temperature prestressed loading to solve the existing problems of relatively complex structure, low heating rate and unfavorable modular integration

Method used

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  • In-situ testing device and method for friction and wear of material under high-temperature prestress loading
  • In-situ testing device and method for friction and wear of material under high-temperature prestress loading
  • In-situ testing device and method for friction and wear of material under high-temperature prestress loading

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Embodiment Construction

[0036] see figure 1 , including test chamber 1, prestress loading and driving module 2, friction load loading module 3, acoustic emission in-situ monitoring module 4, high temperature loading module 5, friction specimen 6 and frame 7, wherein: the top of frame 7 The middle part is fixedly connected to the test chamber 1, and the prestressed loading and driving modules 2 symmetrically arranged on both sides penetrate the test chamber 1 horizontally and are fixedly connected to the top of the frame 7. The prestressed loading and driving modules 2 are fixed by the clamp 214 Connect the friction test piece 6, the acoustic emission in-situ monitoring module 4 is installed on the friction test piece 6, the high temperature loading module 5 is fixed inside the test chamber 1 by bolts and is located under the friction test piece 6, and the friction load loading module 3 penetrates the test The upper surface of the cavity 1 is supported by the support frame 303 and connected with the t...

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Abstract

The invention relates to an in-situ testing device and method for friction and wear of a material under high-temperature prestress loading, and belongs to the field of friction and wear performance testing of the material at a high temperature. The middle of the upper portion of a rack is fixedly connected with a test cavity, prestress loading and driving modules symmetrically arranged on the two sides horizontally penetrate through the test cavity respectively and are fixedly connected with the upper portion of the rack, the prestress loading and driving modules are fixedly connected with a friction test piece, an acoustic emission in-situ monitoring module is installed on the friction test piece, a high-temperature loading module is fixed in the test cavity through a bolt and located below the friction test piece, and a friction load loading module penetrates through the upper surface of the test cavity, is supported by a supporting frame and is in bolt connection with the test cavity through a corrugated pipe. The device and method have the advantages of novel structure, modular design, simplicity in installation and maintenance, capability of researching the damage mechanism of a material under the condition of simultaneous loading of frictional wear and axial load, high heating speed, energy conservation and capability of ensuring the accuracy of experimental data.

Description

technical field [0001] The invention relates to the field of friction and wear performance testing of materials under high temperature, in particular to an in-situ testing device and method for material friction and wear under high temperature prestress loading. Background technique [0002] In the fields of material processing, hot work dies, nuclear reactors and thermoelectricity, materials such as hard alloys and hot work die steels are often used in high-temperature environments, and high-temperature wear is one of the main failure modes of such materials. High-temperature friction and wear tests The testing machine is the main means to evaluate the friction and wear properties of materials under high temperature environment, but at present this kind of testing machine has complex structure, high price, weak integration, single loading condition and single test environment. For example, Chinese patent CN103364296A discloses "A High temperature friction and wear testing m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N3/04G01N3/02
CPCG01N3/56G01N3/04G01N3/02
Inventor 张建海潘张永刘欣戴利霖李柠宇黄令帅李俊蓉王涵赵宏伟
Owner JILIN UNIV
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