论文部分内容阅读
为了研究出一种使大型钢锭中的疏松组织能有效地锻合和压实的锻造方法,我们曾用塑料模型试验测量了钢锭在锻造过程中的内部变形、内部应力、压应力机负载和空隙变形等情况,从而弄明白了空隙锻合和压实的应力——应变条件。在最近研究成功的两种锻造方法中,均证实在采用热钢锭锻造条件下,只要每次给定一定的压下量,一定的锻造比和一定的压力机载荷,是可以有效地锻合和压实其空隙的。其中最常用的一种方法就是FM锻造法,用这种锻造方法能锻出大型锻钢件产品,如特大型锻坯和大型转子轴锻件。
In order to develop a forging method that enables forging and compaction of loose structures in large ingots, we used plastic model tests to measure internal deformation, internal stresses, compressive stress loads, and voids Deformation, etc., so as to understand the gap forging and compaction of the stress - strain conditions. In the two successful forging methods recently, it was confirmed that under the conditions of forging with hot steel ingot, as long as each given a certain amount of reduction, a certain forging ratio and a certain load on the press can be effectively forged and Compaction of its gap. One of the most common methods is the FM forging method, which allows forging of large forgings such as extra-large forgings and large rotor shaft forgings.