What are the polishing processes for stainless steel plate products?

In daily life, stainless steel plate products are very common. They are actually made of stainless steel as the main raw material and then processed by corresponding sheet metal, covering daily necessities, industrial supplies, and medical supplies.

After stainless steel products are produced, appropriate polishing work is required before they can be shipped out of the factory. Grinding work includes rough grinding, semi-fine grinding and fine grinding.

Among them, rough grinding is mainly to remove the solder joints left by welding on the stainless steel plates and the bruises that occurred in the previous process. The purpose is to make the welding joint fillet initially formed, and there are basically no big scratches on the horizontal and vertical surfaces. and bruises, generally use a 600# abrasive belt to grind back and forth on three sides. After this step, the surface roughness of the workpiece should reach R0.8mm. What needs to be paid attention to during the polishing process is the inclination angle of the belt sanding machine, and the pressure of the belt sanding machine on the stainless steel workpiece should also be controlled. Generally speaking, it is more suitable to be in a straight line with the polished surface.

The second step is semi-fine grinding, which is mainly to repair the unsealing that occurred in the process, and to further fine grind the grinding marks formed in the previous step, and to repeatedly grind the marks left in the rough grinding, with the purpose of making the stainless steel plate The surface of the piece is free of scratches and brightened. Generally, an 800# abrasive belt is used to grind the three sides of the workpiece according to the previous method of grinding the workpiece back and forth. The surface roughness of this process must reach R0.4mm. During this process, new scratches and bumps cannot be formed. If this happens, it will be difficult to repair it in subsequent processes.

Next is fine grinding. The main purpose of this process is to grind the welding joints between the polished part and the unground part of the workpiece, remove all scratches and bruises on the surface of the stainless steel plate, and make the surface of the workpiece brighter. Generally, 1000 Use the # abrasive belt to correct and grind the fine lines that appeared in the previous process. The grinding method is the same as the previous step. The workpiece after grinding in this process should be basically close to the mirror effect, and the surface roughness of the workpiece should reach R0.1mm.

At present, there are many types of stainless steel plate products and they are widely used. They usually have high requirements for surface brightness, so the corresponding polishing process is very necessary.