With the rapid development of automobile industry, people put forward higher requirements for improving the performance of automobile parts, prolonging their service life and improving economy. The failure of many parts is due to the material surface is not competent for harsh conditions such as damage resistance, corrosion and surface oxidation.
According to statistics, the annual loss of equipment failure caused by the failure of key basic parts accounts for 3% ~ 5% of the gross national economic output value, of which more than 80% is caused by the failure of local wear and corrosion on the surface, with a loss value of more than 100 billion yuan.
The surface of auto parts not only requires high wear resistance, corrosion resistance and fatigue strength, but also ensures the continuous operation of auto parts under the conditions of high speed, high pressure, load and strong corrosive medium. Therefore, from the perspective of surface strengthening technology, it is very important to further improve the service performance of auto parts.
In 2018, the scale of China's auto parts surface treatment market was 18.67 billion yuan, a year-on-year increase of 4.2%. In 2019, affected by the Sino US trade war and the decline in the prosperity of the automobile manufacturing industry, the market scale growth of the automobile parts surface treatment industry will slow down, and the overall market scale will be about 19.24 billion yuan, a year-on-year increase of 3.1%.
