Surface treatment methods commonly used in automobile sheet metal processing

2022-05-21 10:54:18

In recent years, we should all see that China's independent brands are constantly improving, the key core parts are also rapidly improving, the sales of China's top 100 parts enterprises are also increasing, and the R & D investment and institutions are improving, which can fully show that China has indeed made great progress in auto parts, which can not be ignored.

I believe that in the next few years, the development of auto parts industry will become a global investment industry. If it is through a global investment promotion, it can solve the contradiction between supply and demand in our domestic market. It must be the best. It can reduce the competitiveness of enterprises to a certain extent. It can also be conducive to China's overseas development in expanding auto parts, increasing a certain market share and increasing the popularity of state-owned enterprises.

There are two kinds of surface treatment methods commonly used in automobile sheet metal processing: electroplating and spraying. Electroplating is divided into zinc plating, nickel plating and chromium plating. The main purpose is to form a metal or alloy protective layer on the surface of sheet metal workpiece by using the principle of electrolysis to protect and decorate. Spraying is divided into spraying and powder spraying. After pretreatment, spray gun gas is used to disperse the coating into uniform and fine droplets, which are sprayed on the surface of sheet metal workpiece, so that the coating forms a coating on the surface of workpiece, and then heated and dried. Spraying can protect the workpiece. In addition to the above two methods, there are other surface treatment methods, such as anodic oxidation, chromate, wire drawing, sand blasting and oxidation.

The National Bureau of Statistics recently made a statistics that China has more than 10000 enterprises with a certain scale in the auto parts industry, and some small supporting enterprises are not included, so the total number of China's auto parts industry is about 100000. Therefore, not all countries can afford such a huge market scale, but why can't China develop in the auto parts industry, This is also the main reason for the uneven quality of China's auto parts.

The rapid development of China's auto industry in recent years is also due to the gradual improvement of China's standards in the auto parts industry and the subdivision of the field in recent years. In part, it is also due to the withdrawal from the executive power of the mechanism. Therefore, those suppliers who rely solely on fake and shoddy products in the market will be more difficult to integrate into the market in the future, because the market threshold of auto parts will be higher and higher, It will be phased out by the market.