Формоизменение утяжины на заготовке при прошивке на стане винтовой прокатки

Abstract

In the TPA-80 JSC "SinTZ" triple roll mill was set to compress the helical rolling billets. With the development of new process has been identified the problem of increasing the marriage of pipes for dents. In the report the reasons for the formation of dents in the tubes during rolling. The results of mathematical modeling of flash pieces on the piercing mill screw rolling. The recommendation to reduce the surface defects in the pipes at the box office on the TPA-80 with compression mill.