Introduction to Testing Methods for Wear Resistance and Scratch Resistance of Stainless Steel Decora
Wear resistance and scratch resistance are important performance indicators of the film layer. The most common form of studying the wear resistance of stainless steel coloring film is to use rubber wheels or bottle stoppers to rub against the surface of the coloring film layer, usually with a load of 500 g, which can be manually operated or worn using a testing machine. The stainless steel coloring film that has undergone cathodic hardening has the highest scratch resistance with a dark brown and black color; Secondly, it is purple red or green, with gold and blue being the most prone to scratches.
There are two methods to uate the wear resistance of the film layer. One is to directly compare the number of friction times when the color of the film layer changes or when the substrate is exposed. The wiping frequency of colored specimens is generally 12-25 times, and the wiping frequency of colored and hardened specimens can reach 250-350 times, increasing the wear resistance by about 10 times. Jia Falong et al. used a 500 g load bottle stopper rubber to rub back and forth on the surface of the colored film, with a contact area of 50mm2, until the color changed, and recorded the number of test frictions when the substrate was exposed. Yang Xiyun conducted wear resistance inspection in accordance with the national standard GB1768-79. The rubber wheel was loaded with 500g and the coloring film could remain unchanged up to 200 times.
The second method is to compare the average wear amount, which is represented by measuring the weight or thickness change of the sample before and after friction. This method does not require friction until the substrate is exposed, and a fixed number of friction cycles can be used. The thickness can be measured using a thickness gauge, but it is not suitable for thinner film layers. Ouyang Gui et al. obtained an average wear rate of 0.13 for flat stainless steel coloring film μ G/time. When studying the wear resistance of aluminum coloring film, Wang Bing used a 7503 eddy current thickness gauge to measure the thickness, requiring the film thickness to be maintained at 15 μ Above m.
There are two methods to uate the wear resistance of the film layer. One is to directly compare the number of friction times when the color of the film layer changes or when the substrate is exposed. The wiping frequency of colored specimens is generally 12-25 times, and the wiping frequency of colored and hardened specimens can reach 250-350 times, increasing the wear resistance by about 10 times. Jia Falong et al. used a 500 g load bottle stopper rubber to rub back and forth on the surface of the colored film, with a contact area of 50mm2, until the color changed, and recorded the number of test frictions when the substrate was exposed. Yang Xiyun conducted wear resistance inspection in accordance with the national standard GB1768-79. The rubber wheel was loaded with 500g and the coloring film could remain unchanged up to 200 times.
The second method is to compare the average wear amount, which is represented by measuring the weight or thickness change of the sample before and after friction. This method does not require friction until the substrate is exposed, and a fixed number of friction cycles can be used. The thickness can be measured using a thickness gauge, but it is not suitable for thinner film layers. Ouyang Gui et al. obtained an average wear rate of 0.13 for flat stainless steel coloring film μ G/time. When studying the wear resistance of aluminum coloring film, Wang Bing used a 7503 eddy current thickness gauge to measure the thickness, requiring the film thickness to be maintained at 15 μ Above m.
