作为对传统工艺的改进，提出了一种针对气门锥形密封面的滚压加工方法。
Took to the traditional process improvement, proposed one kind in view of the tire valve cone-shape packing surface trundle processing method.
并在理论上探讨将锥形阀瓣改为球形阀瓣，提高密封面的稳定性。
It also approach theoretically to change the conical valve gag into globe valve gag to raise the stability of the seal plate.
根据权利要求1或2所述的金属塑料复合螺帽，其特征在于所述金属嵌件一端部的内表面为锥形的密封面。
The metal-plastic composite nut, according to Claim 1 and 2, is characterized in that the inner surface at one end of metal insert is cone-shaped sealing surface.
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