型轮是H56MQ—45型煤球成型机用于制造化肥原料的工作主体,是一种大型成品工件。对于需要提高表面硬度的成品大件,国内外通常采用中频或工频表面淬火。我厂因热处理设备所限,不得不用整体加热淬火。因此,型轮的淬火变形,成为现实生产上突出的质量问题。武汉材料保护研究所就如何减少和控制型轮变形问题,曾协助我厂作了 Type wheel is H56MQ-45 briquettes molding machine for the manufacture of chemical fertilizer raw materials, is a large finished workpiece. For the need to improve the surface hardness of large finished products, usually at home and abroad IF or surface frequency quenching. I plant due to heat treatment equipment limited, had to use the overall heating quenching. Therefore, the quenching and deformation of the type wheel has become a prominent quality problem in the actual production. Wuhan Institute of Materials Protection on how to reduce and control the deformation of the wheel, I have helped to plant made