The forging technology of non-standard flange includes free forging, die forging and tire film forging. During production, different forging methods are selected according to the size and quantity of forging parts.
The tools and equipment used in free forging are simple, universal and low cost. Compared with casting blank, free forging makes up for shrinkage cavity, porosity and other defects, and makes blank have higher mechanical properties. Forgings are simple in shape and flexible in operation.
Therefore, it is of great significance in forging non-standard flanges. Free forging equipment includes air hammer, steam-air hammer and hydraulic press, which are suitable for the production of small, medium and large non-standard flanges. Die forging high productivity, simple operation, easy to realize mechanization and automation. Die forging has high dimensional accuracy, small machining allowance and more reasonable distribution of fiber structure, which greatly increases the service life of non-standard flange.