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The US Department of Commerce recently announced the results of its first round of "sunset review" of forged steel parts from Chinese mainland, Italy and Taiwan: if existing anti-dumping measures are lifted, Chinese mainland's goods will be taxed continuously or repeatedly by 142.72, while Italian g
The forging process of ring forgings mainly consists of the following processes: pier thickening, drawing, punching, and hole expansion. The difference between free forging and ring rolling processes mainly lies in the hole expansion process. In the production of ring forgings, free forging is usually used to expand the holes, while rolling rings are mainly used to expand the holes.
The forging and heat treatment process of free forgings adopts the following raw materials in percentage by weight: CR0 5%-1.0%, Mg5. 0%-7.5%, Zn0. 05%-0.10%, Ti0. 03%-0.05%, Cu1. 5%-2.0%, Fe0. 10%-0.15%, slag remover 3.5%-5.0%, and the rest is al. The slag remover can remove hydrogen and floating o
The tools and equipment used for free forgings are simple, universal and low in cost. Compared with the casting blank, free forging eliminates the defects such as shrinkage cavity, porosity and air hole, and makes the blank have higher mechanical properties. The forging is simple in shape and flexib
