Powder Metallurgy in Automotive Products

From a global perspective, the sales market of powder metallurgical parts is the automotive industry, the field is the market with high technical and quality requirements for powder metallurgical parts. The proportion of the automotive industry in the powder metallurgy market is increasing year by year, of which the United States accounts for 90%, Europe is 80%, while China is still less than 40%, the average use of powder metallurgy products per car in Europe is 14kg, Japan is 16kg, the United States has reached more than 19.5kg, while the average amount of powder metallurgy products per car in China is only about 5kg.

Powder metallurgy is mainly used in the two fields of engine and transmission in automobiles. Among them, VVT parts, variable pump, brake vacuum pump parts, these three categories of energy-saving auto parts have been a large number of development and application.

1, VVT powder metallurgy parts

VVT or VCT (variable cam timing system), is equipped with the control and implementation system, the engine cam phase adjustment, so that the valve opening and closing time with the change in engine speed, in order to improve the efficiency of inflation, increase the engine power system. -Most of the core components in the phasor sprocket, stator, rotor and end caps are made of powder metallurgy.

2, oil pump in the powder metallurgy parts

Most of the engine oil pumps and automatic transmission oil pumps are quantitative oil pumps, quantitative oil pumps are generally external gear pumps, internal mesh cycloidal pumps or internal gear pumps and other structures. The gears of these pumps are manufactured using powder metallurgy process.

3, brake power vacuum pump in the powder metallurgy parts

For diesel engine driven vehicles, because the engine is compression-ignition type, the same level of vacuum pressure cannot be provided at the intake manifold, so a vacuum pump is installed to provide a source of vacuum. The power of this vacuum pump is directly from the engine, the power through the powder metallurgy coupling drive the powder metallurgy rotor and then drive the plastic valve, the rotor and pump cavity has a certain eccentricity, the rotation of the valve plate to produce vacuum, and then complete the brake booster role.

The application of powder metallurgy technology in the automotive industry is beneficial to the green development of the automotive industry, and the VVT powder metallurgy parts produced by Jing Shi are sold all over the country and welcomed by the market.