自由锻造所用的工具简单,加工方法通用性强,生产准备周期短,forging哪家好,因而应用较为广泛。自由锻分为手工锻造和机器锻造两种。手工锻造只能生产小型锻件,生产率也较低。
The tool used for free forging is simple,forging价格, the versatile and the production period is short, so it is widely used. Free forging is divided i* two kind*anual forging and machine Manual forging can only produce *all forgings, and the productivity is low.
在现代工业生产中,机器自由锻已成为锻造生产的主要方法,在重型机械制造中,它具有特别重要的作用。而产生的锻件形状和尺寸主要由操作工的技术水平决定。
In modern industrial production, machine free forging has become the main method of forging production, and it plays a particularly important in he*y machinery manufacturing. The shape and size of the forgings are mainly determined by the technical level of the operator.
若因温度和变形程度选择不当而得到粗大晶粒时,可利用热处理相变细化晶粒*,但对于热处理中不发生相变的钢种,如奥氏体钢,就必须在锻造过程中获得细小而均匀的晶粒*,forging采购,因此对这样的材料在锻造时须加倍注意。
If the temperature and degree of deformation and improper selection of coarse grains, the grain refinement phase change heat treatment,盘锦forging, but for the steel phase transition does not occur in the heat treatment, such as austenitic steel, it must be in the forging process h*e fine and uniform grains, so this kind of material in the forging must pay more attentio*.