Water atomization of pure iron powder metallurgy is a technology for metal forming process by heating and compacting metal powder below its melting point. The automotive field is the main battlefield for powder metallurgy applications. The localization of automotive parts has brought rapid growth in the powder metallurgy industry.

Molding

According to different formulations, the tensile strength of powder metallurgy parts is between 170-1200MPa. Compared with traditional parts manufacturing processes, powder metallurgy parts are close to the final size, have good finish, reduce subsequent processing costs, and minimize waste losses; It can produce parts with complex or unique shapes that cannot be manufactured by other processes, and can control the porosity of the product to meet the needs of product self-lubrication and wear resistance.

Compared with traditional machining and cutting processes, powder metallurgy saves 60% of energy and material utilization rate is as high as 95%. It is an excellent choice for cost-effective parts. It is also an important molding process for additive manufacturing, becoming an important part of 2025 made in China.

Ten billion market space yet to be developed

At present, the average amount of powder metallurgy products per automobile in China is only about 5kg, which is far lower than 14kg in Europe and 19.5kg in the United States. On the other hand, in 2016, although the proportion of domestic powder metallurgy products in total powder metallurgy products in China increased to about 60%, it is still far lower than the 80% of developed countries.

At the same time, the types of automotive powder metallurgy products in China are not complete. At present, it is mainly used in products with lower technical content such as connecting rods and gaskets, while VVT, VCT, planetary gears, etc., with higher technical requirements, have higher technical barriers. At present, most domestic enterprises are unable to mass produce. Powder metallurgy is mainly used in engines and gearboxes in automobiles. Assuming that passenger car sales will reach 30 million by 2020, the market size of powder metallurgy components for engines will be about 4 billion yuan, and the market size of powder metallurgy components for transmissions will be about 150. 100 million yuan. In addition, the powder metallurgy parts used in automotive chassis, etc., the domestic automotive powder metallurgy market space has reached 20 billion yuan.