Abrasion Tester
How do steel wool tests work?
Abrasion (wear) is a phenomenon that occurs when objects rub against each other, where materials are continuously lost from the surface.
They can basically be divided into the following four types: adhesive wear. Wear from scraping. Fatigue on the surface. Use the appropriate abrasion machine depending on the type of material, and apply the load-bearing friction coefficient accordingly.
Factors affecting wear resistance are shown in figure (1).
Oxide film on the surface. Stability of chemicals. Conductivity of heat. Strength and hardiness. Roughness of the surface. Factors affecting the abrasion test: contact area. Speed and temperature. Surface conditions have an effect.
Various abrasion tests are used to measure wear Pin-to-disc wear tests are frequently used to measure wear in metals and platings Rotary Abrasion Testers: commonly used to measure wear in processed plastics. Coatings. Laminates. Leather. Textiles. A glazed steel wool test is commonly used on metal surfaces. There are two vacuum suction ports, two abrasion wheel shafts, and a test piece holding a disc for the glass wool test.
Above the disc, the test piece is clamped. You can match the two wheel pressures with different loads to press on the test piece. Set the number of revolutions the machine should make. Wear steel wool or sandpaper. In addition, the weight difference between the test piece before and after it has been worn is measured as the wear resistance characteristics of the test piece. Compare the wear resistance of the test piece by visual inspection or thickness measurement.