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Thermal fatigue testing machine

A testing machine and thermal fatigue technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of unsatisfactory test results, uneven heating of samples, etc., and achieve the effect of reasonable structure, scientific operation and obvious effect

Inactive Publication Date: 2015-04-08
SHENYANG POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Purpose of the invention: The present invention provides a thermal fatigue testing machine in which the sample can rotate at a constant speed relative to the coil, and its purpose is to solve the problem of unsatisfactory test results caused by uneven heating of the sample during the test of the previous induction heating thermal fatigue testing machine problem, optimize the effect of thermal fatigue test

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specific Embodiment approach

[0025] detailed description: Below in conjunction with accompanying drawing, the present invention will be further described:

[0026] Such as figure 1 As shown, it is a thermal fatigue testing machine of the present invention, which mainly includes: motor 1, sample clamping platform 4, cooling water connector 8, column 3, heating coil 5, fuselage 10 and upper box 11. The upper box body 11 and the fuselage 10 are connected through the column 3; the cooling water connector is divided into two upper and lower ones, the cooling water connector 8 is two upper and lower ones, and the upper cooling water connector and the motor 1 are arranged on the upper box Inside the body 11, the lower cooling water connector is installed on the column 3 through a collar; the sample clamping table 4 is also divided into upper and lower two, the upper sample clamping table is connected with the upper cooling water connector, and the upper sample There is a movable gear 12 on the clamping table...

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Abstract

The invention provides a thermal fatigue testing machine which comprises a host machine of the testing machine and a test sample. The host machine of the test machine mainly comprises a motor, drive gears, vertical columns, a test sample clamping bed, a heating coil, cooling water leading and connecting devices, a rotary bearing, a machine body and box bodies of all parts, wherein a test sample is a thin-wall hollow cylinder. The thermal fatigue testing machine provided by the invention is reasonable in structure, is scientific in operation, is obvious in effect, and is suitable for being popularized and applied in the field of a thermal fatigue test.

Description

technical field [0001] The invention relates to material testing technology, in particular to a material thermal fatigue testing machine. Background technique [0002] When a component or material is subjected to temperature change (thermal cycle), cyclic stress or cyclic strain is generated because of its free expansion or contraction, which eventually leads to cracking and destruction, which is called thermal fatigue. [0003] Thermal fatigue damage widely exists in high-temperature equipment, power machinery, and precision electronic equipment. Examples: (1) During the normal operation of a nuclear power plant, when the high-temperature water in the main pipeline is mixed with the low-temperature water in the branch pipeline, the fluid boundary layer in the branch pipeline Periodic changes occur, resulting in periodic changes in the temperature of the branch pipes, causing thermal fatigue damage; (2) When the near-earth orbiter flies around the earth, the solar panels are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/60
Inventor 闫明朱相军王世杰吕晓仁段振云
Owner SHENYANG POLYTECHNIC UNIV