Thermal fatigue testing machine

A thermal fatigue and testing machine technology, which is applied in thermal analysis of materials, measuring devices, instruments, etc., can solve problems such as unsatisfactory thermal fatigue test results, and achieve good cooling effect, less thermal deformation, and small temperature difference between inside and outside

Inactive Publication Date: 2018-02-16
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Purpose of the invention: the present invention provides a thermal fatigue testing machine, the purpose of which is to solve the problem of unsatisfactory thermal fatigue test results in the past

Method used

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specific Embodiment approach

[0029] The specific embodiment: the present invention will be further described below in conjunction with accompanying drawing:

[0030] Such as figure 1 As shown, the present invention provides a thermal fatigue testing machine, which includes a support 1 and a thermal fatigue sample 2; the support 1 is a pillar structure with flanges up and down, and the main body of the support 1 is cylindrical. The center of the support 1 is provided with a support cooling channel 16, the upper part of the thermal fatigue sample 2 is stuck at the upper flange of the support 1 and the lower part is stuck at the lower flange of the support 1, and the outer wall of the thermal fatigue sample 2 is wound with an induction Heating coil 3.

[0031] Such as Figure 4 As shown, the thermal fatigue sample 2 is a thin-walled cylindrical structure with a central hole, and the central hole is the sample cooling channel 14 .

[0032] The thermal fatigue sample 2 has a structure with external threads ...

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Abstract

The invention provides a thermal fatigue testing machine, which is characterized in that: the testing machine includes a support and a thermal fatigue sample; the support is a pillar structure with flanges on the upper and lower sides, and a cooling channel for the support is provided in the center of the support. The upper part of the thermal fatigue sample is clamped at the upper flange of the support and the lower part is clamped at the lower flange, and an induction heating coil is wound on the outer wall of the thermal fatigue sample. The invention has reasonable structure, scientific operation and obvious effect, and is suitable for popularization and application in the field of 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): G01N25/00
Inventor 闫明朱相军王明明李鸣金昊刘栋邹斌
Owner SHENYANG POLYTECHNIC UNIV
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