Although the head is not a core component, it is only used at both ends of the pressure vessel, but it is also an irreplaceable part. In the production of the head, in addition to the performance quality is too important, but also pay great attention to the surface quality, generally have to pass the corresponding polishing process to be qualified. The focus of what we are talking about today is on this process, to see how the polishing process is carried out.

Polishing the head can also adopt different degrees of process technology according to different requirements, which are mainly divided into rough throwing, medium throwing and fine throwing. The rough throwing is relatively simple. As long as the surface of the head is ground, polished or ground with a hard wheel, some obvious defects on the surface of the head are removed to improve the overall flatness and roughness.

In the middle, the polishing wheel needs to be further processed on the basis of the rough polishing, so that some scratches on the surface of the sealing head can be removed, so that the sealing head is smooth and bright. But to really achieve the mirror effect, this is not enough, and the last process is not completed, that is fine polishing. This is a process for processing the surface of the head with a soft roller coated with a polishing paste, which can achieve the purpose of micro-leveling, but does not affect the surface material of the head.