A: The piston works under special conditions of high temperature, high speed and high pressure and poor lubrication conditions. It is required to choose materials with high strength, high temperature resistance, high pressure resistance, light weight, good wear resistance and corrosion resistance. A piston made of aluminum alloy. According to international standards, aluminum alloy pistons should adopt high-silicon aluminum alloy and copper-silicon aluminum alloy, hypoeutectic and eutectic aluminum-silicon alloy, and the national standard is called L0-Ex alloy. This kind of contract can comprehensively meet the use and economic performance. The requirements are the most widely used piston materials in the world, including the L0-Ex alloy of field nickel and L0-Ex without nickel. The L0-Ex alloy with nickel added has good wear resistance and heat resistance. This material is widely used in Japanese and European cars.
