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Dongyang automobile gear structure generally has tooth, tooth groove, end face, normal surface, tooth top circle, root circle, base circle, division circle. The commonly used steels for manufacturing Dongyang automobile gear are tempered steel, quenched steel, carburized quenched steel and nitriding steel. The strength of cast steel is slightly lower than that of forged steel, and it is often used for large-size Dongyang automobile gear. Gray cast iron has poor mechanical properties and can be used in light-load open gear transmission. Ductile iron can partially replace steel in manufacturing Dongyang automobile gear; Plastic gears are mostly used in places with light load and low noise requirements, and the gear paired with it is generally made of steel gear with good thermal conductivity. In the future, Dongyang automobile gears are developing in the direction of heavy load, high speed and high precision, and strive to be small in size, light in weight, long in life and economical and reliable.
