What is the secondary finishing of welded pipe mould and what is the process? In fact, this problem is very simple. The so-called secondary finishing of welded pipe mold is that the welded pipe mould is returned after hardening treatment, and then goes through a fine turning treatment. This is the secondary finishing of welded pipe mould.

For some welded pipe moulds with higher requirements, we need to go through secondary finishing. Our process requirement is to reserve 2-3 wires for the first finishing, because after the first finishing, it is sent to the annealing process manufacturer for annealing and hardening treatment, so as to improve the surface hardness of the die. In this process, the die will have the effect of thermal expansion and cold contraction, The original processing size of each sentence will change slightly. After it is sent back, it is necessary to carry out secondary finish turning treatment, and re process the holes and arc position of the mold to ensure good accuracy.

The precision of welded pipe mould is better and the use is smoother after the second finishing machining.

Key words: welded pipe mould

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