Multidirectional precise die forging process for valve body with flange
A technology for precision die forging and flange valves, which is applied in the field of multi-directional precision die forging technology, can solve the problems affecting the quality of the valve body, inclusions, shrinkage, etc., and achieve excellent surface quality of forgings, good mechanical properties, and reduce overall costs. Effect
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[0037] Example 1
[0038] The specific implementation of the multi-directional precision die forging process of the valve body with flange provided by the present invention is:
[0039] 1) Simufact computer software for numerical simulation. See figure 1 , According to the part pattern, combined with numerical simulation technology to determine the forging pattern and forging forming method.
[0040] Table 1: Main forging technical parameters of this embodiment
[0041] model
[0042] 2) Blank preparation. According to the numerical simulation results, considering the oxidation burning loss and the forging allowance, the blank size is selected as 150mm*550mm.
[0043] 3) The billet is heated. It is heated by an intermediate frequency induction heating furnace, and the heating temperature is 1200℃; the initial forging temperature is kept above 1150℃.
[0044] 4) Mold preparation. See figure 2 , Prepare the mold according to the form of the forging, the preheating temperature of th...
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