一概况高压导电头在点火线圈中主要起导电作用,其次起接线作用(见图1)。我厂从1969年起试制点火线圈,其高压导电头用φ10黄铜棒车制,一个车工每天只能完成100件,并且浪费材料。1973年,经过反复试验,终于试制成功了高压导电头采用冷挤压工艺。插入式点火线圈高压导电头冷挤前毛坯料首先在冲床上下料(见图2),然后经过退火冷挤成型。生产效率比车制提高18倍左右,材料利用率由原来的29%提高 A general situation High-voltage conductive head in the ignition coil mainly from the conductive role, followed by wiring (see Figure 1). Our factory from 1969 pilot ignition coil, the high-voltage conductive head φ10 brass rod car system, a car can only finish 100 pieces per day, and a waste of materials. In 1973, after repeated tests, finally succeeded in the trial production of high-pressure conductive head using cold extrusion process. Plug-in ignition coil high-pressure conductive head Cold extrusion before the first blank material in the punch (Figure 2), and then annealed cold extrusion. The production efficiency is about 18 times higher than that of the vehicle system, and the material utilization rate is increased from 29%