Advantages of Powder Metallurgy Auto Parts

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Structural parts have low to medium strength

Some typical parts on the engine, such as camshaft pulleys, water pump pulleys, crankshaft pulleys, camshafts, crankshafts, timing gears and other parts are generally composed of Fe, Cu, C and other materials, and the density will be maintained at every cubic centimeter Between 6.4 grams and 6.8 grams, the iron powder used in metallurgical materials should have good green strength and forming properties, and the compression rebound rate should be controlled during the compression process to ensure that the quality of the iron powder is more stable. The piston and connecting rod guide seats designed and manufactured in Dongfeng Motor Manufacturing use this material.

Structural parts with medium to high strength

Parts such as gearboxes, engines, sprockets, and gears in automobiles will be smelted using Fe, Cu, C, Ni, Mo or Fe, Cu, C, Ni and other materials. In the design and manufacturing process of the synchronizer cone ring parts in the gearbox, in order to increase the service life of the parts and reduce the cost of manufacturing, iron powder is generally used to replace materials such as aluminum, manganese, brass, etc., because the atomized iron powder is more Economical, low cost, and then the use of mechanical mixing to add other alloy elements, one of the disadvantages of this kind of parts manufacturing is the need to use higher cost raw materials; the actual work of the gear oil pump in the car is mainly to increase the oil pressure to ensure Cars have enough fuel to run. The main components of fuel supply are generally not steel pumps, but pumps manufactured by powder metallurgy technology. The main material elements are C, Fe and Cu. The oil pump gears of this material have Strong wear resistance, while making full use of materials, achieving higher production efficiency through fewer production processes, while occupying less equipment, and having a strong cost performance.

High performance of powder metallurgy parts

The process used in the manufacturing of traditional automobile engine connecting rods is casting and forging steel. The connecting rod part needs to bear greater pressure and tensile loads in actual work. It is difficult for connecting rods manufactured by two methods to meet the actual requirements in actual manufacturing. Therefore, many automobile manufacturers will choose powder forging to produce engines. Connecting rods are mainly represented by Buick cars and BMW cars. With the development and advancement of engine technology, the valve seat of automobile engine faces relatively harsh conditions in actual work. In addition, the continuous promotion and popularization of unleaded gasoline will lead to a lack of lead between the valve and the seat in practical applications. The high chromium casting alloy materials used in traditional valve seats will wear severely in actual work and shorten the service life. At present, some automobile manufacturers will use immersion methods to process high alloy materials. Among them, the performance of the valve seat ring using powder metallurgy is The best, the alloy materials are mainly Me, Cr, Fe, Mo, and the immersion materials are mainly Fe, Mn, Cu. The valve seat ring formed in this way has stronger density, heat resistance, hardness and heat resistance. Automobile transmissions currently also use powder metallurgy planetary gear carriers to improve the performance of the transmission.

Shanghai Geheng Vacuum Technology Co., Ltd. is a vacuum heat treatment furnace manufacturer with many years of experience in design, manufacturing and production. Mainly produce vacuum heat treatment furnace, vacuum sintering furnace, vacuum brazing furnace, New Energy And Environmental Protection Equipment and other vacuum equipments.Provide customized services, equipment work area can be based on customer output.