The symmetry rolling technology for taperring is suggested.
成功开发了圆锥套圈对称辗扩的新工艺。
2
Cold ring rolling is a new technology to produce high-tech seamless rings. The asymmetry of the metal distribution in the taperring causes large axial force, as well as sunken side faces.
Some relative equations which are deriveted from the general calculation formula of residence time of plastic melt in the taperring channel, could be applied to other configurations of channel.