The Important Role of Aluminum Die Casting in Automobile Engine Manufacturing (2)

This article will continue to tell you about the importance role of aluminum die casting in automobile engine manufacturing.

The cylinder head is operated at high temperature in the engine and is subject to a relatively large thermal shock and is prone to stress concentration. In addition to reducing weight, aluminum die casting automobile cylinder head has good thermal conductivity. However, because the cylinder head is a kind of inner cavity with complicated structure and uneven wall thickness, and there is pressure sealing requirement, the technical requirements are more complicated in the actual casting process. In addition to the traditional metal die casting process and low pressure die casting process, the other two much advanced technologies are gasification mold casting process and sand type low pressure die casting technology.

Piston is a very important component in the transmission of energy in the automotive power system. For the material of piston, it requires relatively low density, good thermal conductivity, small thermal expansion coefficient, enough high temperature strength, good dimensional stability, etc. The aluminum alloy castings can satisfy most of the requirements, so that the engine can be designed to reduce the gap between the cylinder and the piston, so as to improve the efficiency of the engine. At present, automotive engine pistons are all basically made by aluminum alloy die casting.

In general, in order to meet the needs of modern social development, the automobile industry is developing towards safety, energy saving and environmental protection. Light weight is one of the most effective ways to save energy, save oil and reduce pollution. The advantages of aluminum alloy as the most typical lightweight material for making automotive engine parts have been quite obvious.

At present, China's automobile industry is developing step by step, and it is of great significance to accelerate the improvement and progress of aluminum alloy materials in domestic automobile engines. In order to realize this meaning, die casting process plays an important role.

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