A method for testing the wear resistance of profile surface coatings using a falling sand testing machine

Abstract

The invention discloses a method for testing the wear resistance of profile surface coatings by using a sand falling test machine. The method includes the following steps: adjusting the inclination angle of the profile plate through the rotating shaft of the sample support, loading the sand material into the sand holding funnel, The sand material flows out from the discharge port of the sand-filling funnel, falls vertically in the conduit along the sand guide needle, and falls onto the profile plate, and then slides along the profile plate to the material guide plate, and is guided into the sand material by the material guide plate box; the sand material keeps falling until the sand falling force point of the profile plate is worn through, the throttle valve is closed, the sand falling is stopped, the weighing scale measures the quality of the sand material, and the wear resistance of the surface coating of the profile plate is measured. The invention has the following advantages: 1. By grinding through the quality of the surface coating of the profile, the wear resistance of the surface coating of the profile can be accurately measured, and the concentration of the sand material is strong; 2. The conduit prevents the wind force from affecting the freely falling sand material; the lifting mechanism Lift the sand material weighing mechanism to the sand filling funnel, and the sand material in the sand material weighing mechanism flows into the sand filling funnel to realize recycling.

Description

technical field [0001] The invention relates to a method for testing the wear resistance of profile surface coatings by using a falling sand testing machine. Background technique [0002] Aluminum alloy building profiles are mainly used in the construction industry and the field of housing construction. They have the advantages of light weight, beautiful structure, corrosion resistance, and simple processing. With the change of the environment and the improvement of living standards, the requirements for the corrosion resistance of the surface of aluminum alloy building profiles are getting higher and higher, so the measurement of the wear resistance of the surface coating of aluminum alloy building profiles is particularly important. Since the specific method and scope of the determination of the sand concentration ratio are not specified in the wear resistance test method stipulated by the anodic oxide film, the results of the wear resistance test are different, and some e...

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Problems solved by technology

Since the specific method and scope of the determination of the sand concentration ratio are not specified in the wear resistance test method stipulated by the anodic oxide film, the results of the wear resistance test are different, and some even cannot detect the wear resistance of the surface coating, which is serious. It affects the accurate detection of the surface quality of profiles, and brings certain troubles to aluminum profile manufacturers and users

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