Corrosive wear test device and using method thereof

Abstract

The invention belongs to the field of wear, corrosion and protection of materials, and particularly relates to a corrosive wear test device. The corrosive wear test device comprises a rack, wherein a vertical type direct current carbon-free motor is arranged on the rack; an output shaft of the vertical type direct current carbon-free motor is connected with a transmission shaft longitudinally arranged on the rack; the lower end of the transmission shaft is connected with a rotating disc; the rotating disc is positioned below the rack and in a medium tank filled with corrosive liquid; a working electrode and at least one weightless test sample clamping slot are also arranged on the rotating disc; the working electrode is connected with a copper ring arranged in the middle of the transmission shaft; an auxiliary electrode which extends into the medium tank is also arranged on the lower part of the transmission shaft and is connected with the copper ring; a copper brush which is connected with the copper ring in a resisting manner and is fixed on the rack is arranged aside the copper ring and is connected with an electro-chemical work station controlled by a PC machine; a reference electrode connected with the electro-chemical work station is also arranged in the medium tank. The device is easy to operate, stable in performance and high in test repetition performance; moreover, an electro-chemical test and a weightless test on the metal materials can be carried out at the same time.

Description

technical field [0001] The invention belongs to the field of material wear, corrosion and protection, and in particular relates to a corrosion wear test device and a using method thereof. Background technique [0002] Corrosion and wear widely occur in machinery and equipment in the fields of petroleum, chemical industry, coal mine, electric power, medical treatment and ocean, which not only bring huge economic losses to the country, but also seriously endanger life safety. With the deepening of the research on the corrosion and wear mechanism, the development of the corrosion and wear testing machine is particularly important. Due to the corrosion and wear system is affected by material factors (material composition, structure, mechanical properties, physical and chemical properties, etc.), electrochemical factors (corrosion medium type, concentration, pH value, etc.), mechanical factors (load, speed, etc.) and environmental factors ( temperature and pressure, etc.), and t...

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Problems solved by technology

[0004] 1) The test method is single: the test device developed by domestic and foreign scholars can only perform a single electrochemical test or weight loss test, and cannot perform electrochemical and weight loss tests at the same time

[0005] 2) The signal of the electrochemical test is unstable: due to the fast rotation speed and chaotic liquid flow, it is difficult to collect instantaneous electrochemical information

[0006] 3) The cycle of the weight loss test is long: the weight loss test usually requires a long time to wash, and when multiple samples are tested, it takes a long time to wait

[0007] 4) Sample loading and unloading is troublesome

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