At present, the powder metallurgy parts used in automobile manufacturing are mainly metal oil-containing self-lubricating bearings and powder metallurgy structural parts. During the period from the birth of the powder metallurgy process to the early 1960s, most of the parts produced by the powder metallurgy process were metal oil-containing self-lubricating bearings. With the progress of technology and the continuous improvement of the performance of powder metallurgy parts, after 1965, the development speed of powder metallurgy structural parts far exceeded that of sintered metal oil-impregnated bearings. At first, most of the powder metallurgy structural parts used in automobiles were concentrated in engines and transmissions, mainly parts with complex shapes, high density, high strength and high performance. Such as: engine connecting rod, camshaft, bushing, gear, ring gear and other parts.
Because the powder metallurgy process has many advantages such as saving raw materials, light weight, excellent performance, and low cost, in addition to engines, transmissions and motor bearings, the range of powder metallurgy parts used in automobiles is now more and more widely used, and more parts It is used in the chassis, body, interior, etc., and the prospect is very broad. Currently, there are more than 1,000 types of powder metallurgy parts used in automobiles. Insiders pointed out that powder metallurgy structural parts have unique advantages in replacing existing gears, cams, sprockets, castings of various shapes, forgings, cutting parts, and developing new structural parts.
In recent years, the excessive use of high-carbon energy by humans has led to frequent extreme climates and brought serious disasters to human life. In order to achieve the goal of harmonious coexistence between humans and nature, it is necessary to change the existing lifestyle, save energy, reduce CO2 emissions, protect the ecology, and welcome the arrival of the low-carbon era. New energy vehicles are gradually being used. As an important part of new energy vehicles, powder metallurgy parts and components are also developing towards the goal of energy saving and emission reduction.
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