A kind of coating wear resistance test device and test method based on conductive characteristics

Abstract

The invention discloses a coating abrasion resistance testing device and testing method based on electrical conductivity, which belong to the technical field of testing. The base is connected to the baffle, the sample is connected to the sample tray, the sample tray is connected to the height adjustment knob of the sample, the sample fastening nut is connected to the sample, the friction pair is connected to the sample, the top of the conductive sample fixing device is connected to the weight, the weight Connect the weight fastening nut, connect the shell of the conductive sample fixing device with the speed control knob, the amplitude modulation knob and the power switch; connect the resistance meter or conductance meter with over-current automatic power-off function with the test lead, power cable, and the power cable with the power supply switch. The invention accurately judges whether the coating penetrates through the real-time measurement of the resistance of the coating or the conductivity of the conductive friction pair and the conductive sample tray during the wear resistance test, and can combine the wear and penetration time of the coating within the wear penetration time. The wear resistance of the coating was quantitatively characterized by parameters such as weight loss under a certain load, friction times, and wear test time.

Description

technical field [0001] The invention relates to a coating wear resistance testing device and testing method based on electrical conductivity, belonging to the technical field of testing. Background technique [0002] Abrasion resistance is a basic performance parameter for coating materials to serve in frictional environments, and friction occurs in most coating environments, especially oil and gas pipelines or storage tanks that have been subjected to oil, gas and water media or floating plates and tank walls for a long time Frictional influences are highly susceptible to damage. Therefore, it is very important to accurately evaluate the wear resistance of coatings to ensure the protection effect of pipelines and equipment. At present, most wear tests measure the wear and tear of the coating by means of falling sand or pressure head, but the disadvantages of these methods are that they cannot automatically detect whether the coating has been worn and penetrated, and cannot...

AI Technical Summary

Problems solved by technology

At present, most wear tests measure the wear and tear of the coating by means of falling sand or pressure head, but the disadvantages of these methods are that they cannot automatically detect whether the coating has been worn and penetrated, and cannot record the exact time of the wear and penetration of the coating. (See Chinese patent: application number 201010515805.1, application date 2010.10.22; application number 201010565362.7, application date 2010.11.30)

Images