hermetization meaning in Chinese

闭封
密封；封闭

Magnetic head is designed by six magnetic poles in symmetrical distribution , the design of excitation loop and excitation angle makes magnetic field act on welding arc region which could control welding arc effectively . the insulation , cooling and hermetization of magnetic head avoid the influence on magnetic field of outside ; miniaturization design of magnetic head could achieve different welding process
磁头装置采用六磁极对称励磁方式设计,励磁线圈和励磁角度的设计使产生的磁场恰好作用于焊接电弧区域以实现对电弧的有效控制;磁头的绝缘,冷却,密封设计避免了焊接过程中外界因素对磁场的干扰;磁头整体的小型化使该装置可以实现多种形式的焊接工艺。