Auto Engine Valve Turning Part

The valve is composed of valve head and the valve head. The temperature is very high (1050~1200k 570~670k intake valve, exhaust valve), but also bear the pressure of the gas valve spring force, inertial force and transmission components, lubrication, cooling conditions, valve requirements must have a certain strength, rigidity, heat resistance and wear resistance. The inlet valve is generally used for alloy steel (chrome steel, nickel chromium steel, heat-resistant alloy) exhaust valve (Gui Gegang). Sometimes in order to save the exhaust valve head with heat-resistant alloy, heat-resistant alloy, chrome and rod, and the two welding together. Gas door role is responsible for air to enter the engine and exhaust gas after combustion from the structure of the engine, divided into the intake valve and exhaust valve (intake valve) (exhaust valve). The intake valve is the role of the air into the engine, and the fuel mixed combustion; exhaust valve is the role of the exhaust gas after burning Out and heat