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How to guarantee a high quality cross-section of seamless steel pipe

A billet is hollowed by some special technical in making seamless steel pipe. What methods can we take during the production process to give guarantee for the high quality of these pipelines?

 

There are technological parameters should be taken carefully.

First of all, have you ever thought about the billet heating? What’s the basic heating temperature for the entire steel rolling?

Then, pressure concerning would be another theme for us. High pressure water descaling, thermal centering question, perforation trouble and so on, these are points we should list them out and think about twice.

Of course, inner capillary surface oxide is also playing an important role during the whole production process. As it would decide the rolling resistance quality.