双介质径向隔套式冷等静压设备在陶瓷等冶金粉体坯料压制中,存在由于坯料和托架尺寸选择过大引起设备橡胶隔套被损坏的情况,研究了坯料和工作介质受压收缩后对橡胶隔套径向变形的作用机理,建立压缩物理和数学模型,推导出了最窄处径向收缩率计算公式,为该类设备压制坯料和托架尺寸的选择提供了理论依据,具有一定的现实指导意义。 Double medium radial spacer cold isostatic pressing equipment in the metallurgical and other metallurgical powder billet pressing, there is due to the billet and bracket size is too large to cause the equipment rubber spacer is damaged, studied the billet and working medium pressure After shrinkage, the mechanism of radial deformation of rubber spacer was established. Compressive physical and mathematical models were established. The formula of radial shrinkage at the narrowest point was deduced, which provided a theoretical basis for the selection of blank size and bracket size. Has a certain practical significance.