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介绍了等通道转角挤压实验模具的设计 ,利用该模具可以在实验室制备具有超细尺度晶粒的块状材料 ,是实现晶粒超细化的一种新方法。
The design of equal channel corner extrusion die is introduced. Using this die, it is possible to prepare a massive material with ultrafine scale in the laboratory, which is a new method to realize the grain refinement.