Portable type metal wire stretching stress corrosion testing device

Abstract

The invention provides a portable type metal wire stretching stress corrosion testing device which comprises a loading body device (1), a stress corrosion container (2), a sensor system (3) and a dedicated clamp (4). A test piece is fixed through the loading body device (1), pull force is exerted on the test piece through a loading nut, the magnitude of force is measured and displayed by the sensor system (3), and the stress corrosion container (2) can perform selective and multi-point corrosion on the stretched test piece and an electrochemical test can be carried out. The dedicated clamp (4) can be connected with the test piece and an acoustic emission testing system so as to perform acoustic emission testing. The device has the advantages of being convenient to loading, convenient to carry, high in precision, capable of being repeatedly used, and capable of performing selective corrosion and multi-point simultaneous corrosion.

Description

technical field [0001] The invention relates to a portable metal wire tensile stress corrosion test device. Background technique [0002] Stress corrosion refers to the damage caused by metals in specific corrosive media under the action of tensile stress. Stress corrosion research is an important field of safety and reliability research. The metal wire tensile stress corrosion test device is mainly used to study the corrosion performance and stress corrosion mechanism of metal wire under different stresses, corrosive media, temperature, pH value, and time coupling. At present, the constant load smooth tensile stress corrosion test of metal materials needs to be completed with the help of a large special testing machine, which is bulky, expensive, difficult to move, and inconvenient to use. Although stress corrosion test devices for metal rod materials and portable stress corrosion test devices using spring loading have been developed at home and abroad, they still cannot ...

AI Technical Summary

Problems solved by technology

At present, the constant load smooth tensile stress corrosion test of metal materials needs to be completed with the help of a large special testing machine, which is bulky, expensive, difficult to move, and inconvenient to use

Although stress corrosion test devices for metal rod materials and portable stress corrosion test devices using spring loading have been developed at home and abroad, they still cannot meet the requirements of multiple loading, selective corrosion, multi-point corrosion, repeated use, and accurate measurement.

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