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High temperature radial loading stress corrosion sample device

A technology of stress corrosion and test equipment, applied in the direction of applying stable tension/pressure to test material strength, test wear resistance, etc., can solve problems such as solution leakage, achieve constant concentration, avoid heat dissipation, and reduce water vapor evaporation Effect

Inactive Publication Date: 2017-02-15
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the main purpose of the present invention is to provide a high-temperature radial loading stress corrosion test device, which solves the problems in the prior art that the solution is prone to leakage and it is difficult to apply a radial load in the boiling solution to carry out the stress corrosion test. problem, the device can accurately control the heating temperature of the solution, the boiling degree of the solution and the size of the applied load

Method used

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  • High temperature radial loading stress corrosion sample device

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Embodiment

[0028] Such as figure 1 As shown, the high temperature radial loading stress corrosion test device of this embodiment mainly includes a load application system, a temperature control system and other structural components. Force frame, a drop-proof filter screen 14, a beaker 8, a stainless steel heating ring 15, a thermocouple 4 sealed with polytetrafluoroethylene, a temperature controller 17, a condensate return pipe 1 and a rubber Plug 3, the guide rail loading bracket device with scale is made up of guide rail 7 with scale, fastening nut 6, a pair of guide rail supports 12, and the reverse force frame is composed of the upper beam 2 of the reverse force frame, the lower beam 13 of the reverse force frame and Reverse force frame column 11 forms. Wherein, the upper beam 2 of the reverse force frame is fixed on two columns of the constant load testing machine, and the guide rail 7 with scale is fixed on the lower beam 13 of the reverse force frame, and the guide rail 7 with s...

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Abstract

The present invention relates to the stress corrosion measurement field, and in particular to a high temperature radial loading stress corrosion sample device, the device can be used in a pure shear or three point bending stress corrosion test, and can effectively solve the problem that in the prior art, steps for clamping a sample during high temperature radial corrosion are complicated, and under stress applied conditions, a liquid is easy to leak and a solution is too fast to boil. The device comprises a load applying system and a temperature control system, and is mainly provided with a group of opposite force racks, a guide rail object carrying device with a ruler, a drop preventing filter net, a beaker, a stainless steel heating ring, a thermocouple, a temperature controller, a condensation reflux pipe and a rubber plug. The device has the advantages of simple operation, capability of loading both rod shaped and plate shaped samples, capability of accurately controlling liquid heating temperature, boiling degree and the size of an applied load, and easiness in real-time observation of strain corrosion state of the samples.

Description

technical field [0001] The invention relates to the field of stress corrosion measurement, in particular to a high-temperature radial loading stress corrosion sample device, which is suitable for systems with high requirements on stress conditions and high-temperature solutions. [0002] technical background [0003] Stress corrosion is a phenomenon of spontaneous delayed failure of metal components carried by equipment in a specific medium environment, and is one of the main reasons for equipment failure. Stress corrosion can be summarized into two types: (1) Hydrogen-induced cracking type stress corrosion, this kind of stress corrosion has the hydrogen entering the material when the material is in service in the atmosphere or hydrogen-containing environment, and the hydrogen produced by the electrochemical cathodic reaction process or the hydrogen produced by it. (2) Anodic dissolution type stress corrosion, which is controlled by the electrochemical anodic reaction process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N3/18
Inventor 鲁金忠张文泉刘月罗开玉
Owner JIANGSU UNIV
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