This paper mainly discusses subjects such asprocessing,technology of pole coil wind ing,forming,manufacturing lead,punching,dove-tail groove,insulating,heat pr essing,encircling slot,etc.
Suitable for skeletonless and special-shaped coils, and widely applied for special electric motor, electrical appliance, apparatus, color TV deflection coil and civil electrical appliance products.
Early electrical workers used it as a coating to insulate coils, and molded it into stand-alone insulators by pressing together layers of shellac-impreg-nated paper.
By deenergizing of coil, the control air actuates the3- way valve( pos. no.29 through the pipe named“ SUPPLY” and the3- way magnet valve( pos. no.73, right frame).
Warp knitting differs from weft or filling knitting in that the loops are formed in a vertical or warpwise direction and yarns lying side by side are interloped.