Temperature-stress coupling aging treatment device and use method thereof

Abstract

The invention discloses a temperature-stress coupling aging treatment device and a use method thereof. The device comprises a basic frame structure, a stress traction structure, a tress loading control structure and a temperature loading control structure. The basic frame structure comprises a base, a lower bottom plate, a supporting plate and a stand column. The lower end of the stand column is in threaded connection with the lower bottom plate, and the upper end of the stand column is in sliding connection with the supporting plate. The stand column is in threaded connection with a large nut. The stress traction structure comprises a lower screw rod fixing plate, an upper screw rod fixing plate and a screw rod. The upper end of the screw rod is in threaded connection with the upper screwrod fixing plate, and the lower end of the screw rod is in sliding connection with the lower screw rod fixing plate. The lower end of the screw rod is in threaded connection with a small nut. The stress loading control structure is used for carrying out constant tension stress loading on a tensile sample. The temperature loading control structure is used for carrying out constant temperature heating on the tensile sample. According to the temperature-stress coupling aging treatment device and the use method thereof, an aging experiment can be carried out on a material needing temperature-stress coupling aging, and temperature, stress and other influence factors can be adjusted.

Description

Technical field [0001] The invention relates to a material aging treatment method, in particular to a temperature-stress coupling aging treatment device and a use method thereof. Background technique [0002] Artificial aging and stress aging are not only a material processing technology, but also a material research method. They can have a non-negligible impact on the microstructure and mechanical properties of materials. On the one hand, materials and parts mainly made of non-ferrous metals such as aluminum alloy will undergo the process of aging treatment in the process of forming. The dispersed second phase precipitated in the material matrix can effectively improve the strength and hardness of the material. Indicators; on the other hand, certain parts will be simultaneously affected by temperature and stress under service conditions, such as high-speed precision machine tool bearings, etc., stress aging experiments are usually used to simulate its working conditions, so as t...

AI Technical Summary

Problems solved by technology

[0003] Stress aging Due to the introduction of an external force field, the experimental conditions need to meet the temperature and stress coupling loading at the same time, but there is no experimental equipment dedicated to stress aging

The commonly used temperature-controlled incubator can only provide the temperature field, which can be used for artificial aging, but it is difficult to put the stress loading device in it for stress aging; the electronic universal testing machine with an incubator can perform temperature-stress loading at the same time, but it usually only It is used for high-temperature tensile experiments, and long-term stress-aging experiments will damage the testing machine; while the high-temperature creep testing machine that best meets the stress-aging conditions is mostly used for creep performance testing of materials, and is rarely used for aging treatment experiments of materials. Moreover, the equipment is expensive, occupies a large area, and has high experimental costs.

[0004] Therefore, for the stress aging research of materials, the lack of a suitable stress aging device is the current problem. If a simple and convenient stress aging device can be designed to meet the temperature-stress coupled loading conditions, it can be used in the stress aging research of materials , very realistic

Images