It is writed in a new technology of roller bending force-forming after forming theory analysis and experienental study and aiming to the character of more difficulty,more stands,heavier equipment and high manufacturin...It is writed in a new technology of roller bending force-forming after forming theory analysis and experienental study and aiming to the character of more difficulty,more stands,heavier equipment and high manufacturing cost of equipment of longitudinal welded pipe with large diameter and thick wall thickness during the production.It is described the principle of forming,production process and equipment features of this technology.展开更多
文摘It is writed in a new technology of roller bending force-forming after forming theory analysis and experienental study and aiming to the character of more difficulty,more stands,heavier equipment and high manufacturing cost of equipment of longitudinal welded pipe with large diameter and thick wall thickness during the production.It is described the principle of forming,production process and equipment features of this technology.
