研究了不同含碳量环状零件的淬火变形规律。结果表明:随含碳量的增加,环状零件的变形率呈先升高后降低的抛物线形状,50钢淬火时变形率达到最大值;当淬火介质的冷却速度较快时,其变形率增大,低合金碳钢的变形率较小;运用该规律可以在机械加工过程中对涨大的变形量进行补偿,从而使淬火之后的零件尺寸符合技术要求。 The quenching deformation of annular parts with different carbon content was studied. The results show that with the increase of carbon content, the deformation rate of annular parts first increases and then decreases. The deformation rate reaches the maximum when quenched with 50 steel. When the cooling rate of quenching medium is faster, the deformation rate increases The deformation rate of large and low alloyed carbon steel is small. By using this law, the large amount of deformation can be compensated in the machining process, so that the size of the part after quenching can meet the technical requirements.