Pipe die welding method

Abstract

The invention discloses a pipe die welding method which comprises the following steps: S1, carrying out rust removal operation on a to-be-welded pipe die, and polishing the port of the pipe die to have metal luster; S2, carrying out washing operation on the pipe die after rust removal operation; S3, drying the washed pipe die; S4, preheating the to-be-welded pipe die; and S5, utilizing a welding gun and adopting an R307 welding rod to weld the joint seam of two to-be-welded pipe dies. The pipe die welding method solves the problem in the prior art that the welding technology is likely to causethe pipe die to crack.

Description

technical field [0001] The invention relates to the field of welding, in particular to a pipe mold welding method. Background technique [0002] The pipe molds used in hot molds are all split, and the socket head and pipe mold body are tightly connected by flange bolts. During use, due to the huge vibration generated by the high-speed rotation of the pipe mold, the bolts of the pipe mold often break, which seriously affects the production. [0003] The thermal mold pipe mold is huge in size, and if it is made by integral casting, the cost is huge and cannot be implemented. Welding is a more feasible method. And because the material of the pipe mold is relatively special, welding is easy to crack. [0004] Therefore, it is an urgent problem to be solved in the present invention to provide a pipe mold welding method that is easy to operate during use, has high welding strength, low cost, and small thermal stress. Contents of the invention [0005] In view of the above te...

AI Technical Summary

Problems solved by technology

[0005] In view of the above technical problems, the purpose of the present invention is to overcome the problem that the welding process in the prior art is prone to pipe mold cracking, thereby providing a pipe that is easy to operate during use, has high welding strength, low cost, and small thermal stress. Die welding method