Influence of Belt Furnace on Engine Valve Heat Treatment

Engine valves are essential parts for engine functioning. They are located in the cylinder head and can be classified into intake valves and exhaust valves. The intake valves bring in air/fuel into the chamber for combustion, and the exhaust valves let exhaust out after burning. Because of the high working temperature and strength required in such harsh working conditions, heat-resistant steels are often used. Besides proper material selection, proper heat treatment is essential in manufacturing high performance engine valves. It is vital to create the desired properties like strength, wear resistance, toughness, fatigue strength, hardness, and microstructure. This short article gives the insight of engine valve heat treatment and describes a modified nitrogen capable fast fire furnace that is used for such application.