Polishing refers to a machining method that uses mechanical, chemical, or electrochemical effects to reduce the surface roughness of a workpiece to obtain a bright, flat surface. It is used to modify the surface of the workpiece by using polishing tools and abrasive particles or other polishing media.
During polishing, the high-speed rotating polishing wheel (circumferential speed is above 20 meters/second) is pressed against the workpiece, so that the abrasive rolls and micro-cuts the workpiece surface, so as to obtain a bright processed surface. The surface roughness can generally reach Ra0.63 ~ 0.01 micron; when non-greasy matting polishing agent is used, it can matt bright surfaces to improve appearance.
Polishing is very important for the tank, we do all the polishing/pickling treatment on the inside and outside of the tank; Polishing precision 0.2-0.4um, internal mirror polishing.
Many factors affect the surface finish, such as:
• Abrasive size and type
• Polishing cloth weaving method
• Polishing time
• Sample load
• turn around
• Rotating speed
Our argon central welding system provides 100% pure argon to prevent tank distortion during welding.
Raw material stainless steel 304 material raw material and parts meet the food standard, there will be quality testing, pressure testing, leakage testing, pipeline testing.
So every process will go through a certain amount of testing, and all parts and components, etc. We have passed the formal testing.