The matters attention in pipe expanding machine production

The matters attention in the large diameter pipe expanding machine production

(1) pipe expanding machine work, according to the special pipe wall thickness specification and expand the system specifications length selection;
(2) to treat the surface of the pipe material are fine check, fold, fold, crack, external scar small shallow depth of the pipe material grinding is clean, and outside fold more or deep grinding tube material is not used as tube material.Tube material also want to ensure that wall thickness after grinding standard;
(3) after the completion of the expansion pipe interchanged to inspection on section tube inside and outside surface, not eliminate the defects in the steel pipe and make production records, can after grinding grinding clean to annealing furnace.