What are the causes of pitting on the surface of mirror stainless steel plates?

https://www.sakysteel.com/mirror-stainless-steel-sheet.html

1. Material problem. Stainless steel is a type of steel formed by smelting and depositing iron ore, metal element materials (different materials add elements with different compositions and proportions), and it also undergoes several processes such as cold rolling or hot rolling. During these processes, some impurities may be accidentally added, and these impurities are very small and integrated with the steel. They cannot be seen from the surface. After grinding and polishing, these impurities appear, forming a very Obvious pitting is usually caused by 2B materials, which are matte materials. After grinding, the brighter the surface, the more obvious the pitting.) There is no way to remove the pitting caused by this material problem.

2. An unqualified polishing wheel is used. If there is a problem with the polishing wheel, the problem will not only be pitting, but also grinding heads. [There are too many polishing wheels on the machine. Find out the problem. Wherever, the polishing master needs to check and replace one by one. If the quality of the polishing wheel is not up to par, then all of them need to be replaced! There are also unbalanced polishing wheels, which cause uneven stress on the material, and these problems will also occur!

https://www.sakysteel.com/mirror-stainless-steel-sheet.html
https://www.sakysteel.com/mirror-stainless-steel-sheet.html
3. There are fine particles in the machine (this is the surface of stainless steel that is worn away during the polishing process). Generally, mechanically polished machines have filters for fine particles. However, if the filter is not replaced frequently, the fine particles will It will flow to the plate surface with the flow of water, and these small particles will cause great damage to the stainless steel plate material on the pin surface, and may cause problems such as pitting and scratches. If there are problems caused by this situation, generally Secondary grinding is required! Secondary grinding not only costs a lot of manpower and material resources, but also costs a lot of time! We also need to take preventive measures and replace the filter frequently to avoid this problem!

 


Post time: Nov-13-2023