A process for Manufacturing a Hollow Body from a Solid Bar of Steel heated to temperature formed by perforated in an oblique Rolling Mill cylinders,Using Elements Guide closure of Caliber, and apparatus for carrying it out

摘要

It refers to the process of drilling holes on the cylinder laminate by using the diameter decimal guiding element. The process is to use a diameter decimal element and a thick steel bar heated at the forming temperature to make a hollow body. In this way, the guiding closing distance between the fixed lamination and the road surface is reduced before drilling starts.Between the steel bar structure and the closed-circuit forces with small diameter and fixed aperture, the diameter guiding elements are limited by compressing the reasonable distance with the common value of fasestacionia and by compressing the current force. It also involves a facility for carrying out this procedure.