套圈热处理变形,是轴承制造热处理技术上存在的老问题。由于这一问题长期得不到解决,既严重影响着产品质量,造成大量的废品;还增加了热处理工序整形的很大工作量;并且为保证尺寸,迫使留磨量增大,增加了磨削工作量和金属消耗。因此,如何使套图热处理后能达到少变形,保证热处理质量(特别是套圈的尺寸稳定性),减少废 Ferrule heat treatment deformation, bearing manufacturing heat treatment technology exists in the old problem. Because of this problem has not been resolved for a long time, both seriously affect the quality of the product, resulting in a large amount of waste; also increased the heat treatment process a lot of plastic work; and to ensure that the size, forcing to increase the amount of grinding, increased grinding Workload and metal consumption. Therefore, how to make the map heat treatment to achieve less deformation, to ensure the quality of heat treatment (especially the dimensional stability of the ring), reduce waste