网带炉油槽机构对深沟球轴承淬火锥度畸变的影响

深沟球轴承常使用网带炉进行热处理,网带炉油槽机构和淬火油的粘度及冷速对轴承的淬火畸变影响较大。基于6206/01轴承套圈,探讨了其锥度畸变的产生机理。结果表明:轴承套圈热处理锥度畸变与淬火冷却均匀性相关较大,将小网带运行翻转速度调整为15 s时,可改善该轴承套圈的淬火冷却均匀性,较好控制6206/01轴承套圈的锥度畸变。对其他规格的轴承套圈也具有借鉴意义。

Influence of oil groove mechanism of mesh belt furnace on taper distortion of deep groove ball bearings

Mesh belt furnace is often used for heat treatment of deep groove ball bearings. The structure of mesh belt furnace oil groove, viscosity of quenching oil and cooling rate have great influence on the quenching distortion of bearings. Based on 6206/01 bearing ring, the mechanism of taper distortion was discussed. The results show that the taper distortion of bearing ring in heat treatment has a great correlation with the uniformity of quenching and cooling. When the turnover speed of small mesh belt is adjusted to 15 s, the uniformity of quenching and cooling of bearing ring can be improved, and the taper distortion of 6206/01 bearing ring can be better controlled. It can also be used for reference to other specifications of bearing rings.