无压边圈封头模具的设计与应用

The Designing and Application of Sealing Mould without Pushing─down Rim

设计了一种无压边圈圆锥形拉深模具，并根据生产实践经验，给出了各项参数的设计原则和推荐值。实践证明，这种模具可以代替普通模具，优质、高效地热压椭圆形封头。

The rim is to design some sort of conical teuside mould without pushing-downrim to take the place to the common mould，and a kind of high grade， high efficient hotpressing egg-shaped sealing。