此文用塑性泥作模拟材料，进行了压扭复合锻造和不对称V型砧拔长的工艺实验。
The experiments of twist-compression forging and unsymmetrical V-shape die forging are made using plasticine.
从冶炼、浇注、锻造、热处理、机械加工等方面对复合镶套轧辊的制造过程进行了介绍。
This article has described the manufacturing process of the compound bushing rolls in the aspect of melting, pouring, forging, heat treatment and machining.
微观组织观察表明，在锻造或高温轧制状态下获得了以低碳马氏体为主，含少量贝氏体和残余奥氏体的复合组织。
Observations showed that the micro-structure of the steel after forging or high temperature rolling was composed of low-carbon martensite, a little part of bainite and residual austenite.
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