Rotary multi-contact corrosive wear testing apparatus

Abstract

The invention relates to a rotary multi-contact corrosive wear testing apparatus, comprising a servo motor, a fixture, a reaction container, an electrochemical test system, a loading device and a fluid impact system. The fixture is connected with a transmission shaft of the servo motor and rotates around the axis of the transmission shaft, the fixture is fitted with a specimen, and the fixture drives the specimen to rotate while rotating; a working electrode is placed in a reaction tank and reacts with the specimen for corrosive wear reaction, and a loading system comprises a loading table, a linear bearing, a pressure sensor and a hydraulic cylinder; the fluid impact system comprises a peristaltic pump, a fluid insulation tank, an impact nozzle, a feed hopper, an adjustable discharge port and a valve. The apparatus of the invention enables rotary friction in multiple contact manners to better observe grinding marks, can simulate corrosive wear behaviors of material under fluid impact and enables the addition of solid particles in a fluid when necessary; the influence of external disturbances upon testing results can be reduced, and signal stability in electrochemical testing can be guaranteed.

Description

technical field [0001] The invention relates to a test for testing the anti-wear or corrosion properties of solid materials by using mechanical stress, in particular to a rotary multi-contact corrosion wear test device. Background technique [0002] Corrosion involves a wide range of areas, from the sky to the ground, from the ocean to the land, and corrosion occurs. As big as giant ships and artificial satellites, as small as chips in computers, including petrochemical, petroleum, chemical, electric power, urban pipelines and other industries, as long as materials are involved, there will be corrosion problems, which will lead to material failure and even equipment accidents in severe cases. and casualties. Electrochemical corrosion is the most common and widespread corrosion, because as long as there is condensed water in the medium that makes up the environment, the corrosion of metals will proceed in the form of electrochemical corrosion. [0003] Corrosion wear is the...

AI Technical Summary

Problems solved by technology

[0004] At present, most similar products focus on the wear caused by the friction process. Researchers at home and abroad have developed many friction and wear testing machines, and most corrosion test simulation devices focus on static simulation, which cannot meet the data collection under complex conditions.

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