A new technology and equipment of annealing and bluing for finished stator and rotor of uncoated cold-rolled electric steel lamination in bell-type hydrogen furnace was introduced.

• 介绍了无涂层电工钢冲片迭片成型后的电机定子和转子在罩式炉内进行退火和发蓝处理一次完成的新工艺及装置。