电工钢叠片

电工钢叠片是由硅钢合金制成的精密冲压或激光切割薄片，厚度通常为0.2-0.7毫米，带有绝缘涂层。它们堆叠并粘合形成电机、变压器和发电机的定子铁芯。叠片通过中断电路路径来减少涡流损耗，而其高磁导率增强了磁通传导。关键性能包括低铁损、高饱和磁感应强度和良好的机械强度以支撑绕组。

电工钢叠片的工作原理是通过层间绝缘减少涡流，并在定子铁芯中有效引导磁通。当交流电流通过定子绕组时，会产生旋转磁场。叠片铁芯为磁通提供低磁阻路径，从而将能量损耗降至最低。绝缘层（如氧化物或磷酸盐涂层）防止片间循环电流，而硅钢合金则减少磁滞损耗。

Electrical steel laminations work by reducing eddy currents through insulation between layers, directing magnetic flux efficiently in the stator core. When alternating current flows through stator windings, it creates a rotating magnetic field. The laminated core provides a low-reluctance path for this flux, minimizing energy losses as heat. The insulation (e.g., oxide or phosphate coating) prevents circulating currents between sheets, while the silicon steel alloy reduces hysteresis losses.