High temperature superheated steam environment creep fatigue test device

A creep fatigue test, superheated steam technology, applied in measuring devices, using repetitive force/pulse force testing material strength, instruments, etc., can solve the deterioration of equipment material performance, harsh service environment, affecting the safe operation of equipment, etc. problems, to ensure self-isolation, reasonable and reliable structure, and stable cooperation

Active Publication Date: 2015-10-07
HEFEI GENERAL MACHINERY RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Superheated steam is widely used in power generation, mechanical processing, food and other industries. Its generators, pipelines, and even application objects (such as steam turbines) serve in harsh environments and often withstand high temperatu

Method used

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  • High temperature superheated steam environment creep fatigue test device
  • High temperature superheated steam environment creep fatigue test device
  • High temperature superheated steam environment creep fatigue test device

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Embodiment Construction

[0035] For ease of understanding, here in conjunction with accompanying drawing, specific testing device of the present invention and its operation process are further described as follows:

[0036] The concrete implementation structure of the present invention, as Figure 1-5 As shown, it includes a creep fatigue testing machine loading frame 10 that provides sample a with creep fatigue loading force, and also includes an upper pull rod 11 and a lower rod 12 for fixing the sample a at both ends, wherein the upper end of the lower rod 12 The fixture passes through the lumen of the bellows 70 located under the heat-resistant transparent tube, that is, the quartz glass tube 60, and finally penetrates into the quartz glass tube 60 to clamp or screw the lower end of the sample a, and the lower end of the pull rod 12 is connected to the The loading transmission assembly 13 is connected. The clamp at the lower end of the pull-up rod 11 passes through the lumen of the bellows 70 abo...

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Abstract

The invention relates to the field of material tension loading creep fatigue test, in particular to a high temperature superheated steam environment creep fatigue test device. The device at least comprises a creep fatigue test machine loading frame, which is provided with an upper pull rod and a lower pull rod. The device also includes a heat-resistant transparent pipe, an upper ring cap and a lower ring cap are coaxially fixed on the upper pull rod body and the lower pull rod body, corrugated pipes are coaxially disposed in seal joint with the upper ring cap, the lower ring cap and the corresponding end pipe orifices of the heat-resistant transparent pipe, and the upper ring cap, the corrugated pipe walls, the heat-resistant transparent pipe wall and the lower ring cap together enclose a sealed cladding type sample test environment. The air inlet end and air outlet end of a steam generation assembly run through the upper ring cap and the lower ring cap to communicate with the seal cavity. The device also includes an induction heating assembly. The device provided by the invention can accurately detect various material performance of a to-be-tested sample in a service environment, and provides the necessary equipment for the material failure mechanism research.

Description

technical field [0001] The invention relates to the field of creep fatigue testing under tensile loading of materials, in particular to a high-temperature superheated steam environment creep fatigue testing device for testing metal materials in service environments. Background technique [0002] Superheated steam is widely used in power generation, mechanical processing, food and other industries. Its generators, pipelines, and even application objects (such as steam turbines) serve in harsh environments and often withstand high temperatures, superheated steam, static stress, and dynamic stress at the same time. Due to the effect of variable stress, it is not uncommon for equipment material performance to deteriorate or even fail, which seriously affects the safe operation of equipment. For this reason, there is an urgent need for a test device that can accurately simulate its service environment and test the performance state of materials in this environment, specifically f...

Claims

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Application Information

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IPC IPC(8): G01N3/32G01N3/02
Inventor 陈学东刘孝亮王冰范志超庄庆伟
Owner HEFEI GENERAL MACHINERY RES INST
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