Methods for Manufacturing Vertical mill Roller

摘要

The present invention relates to a method of manufacturing a crushing roller for vertical milling, comprising the steps of: (a) forming a mounting hole of a crushing roller through punching in the center of a cylindrical ingot; A step B of forming the base material by processing the outer shape of the ingot provided in a ring shape through the step A; A step C for cutting the surface of the base material for the outer contour of the base material formed through the step B; And a step D for forming a welding layer for surface hardening by using a welding material for surface hardening on the surface of a base material provided in a predetermined outer shape through step C. In step B, the inner diameter and the outer diameter of the ingot are forged And forming the base material by expanding the base material. This makes it possible to manufacture a crushing roller having a high yield point and tensile strength by miniaturizing the degree of crystal formation of the base material constituting the base of the crushing roller.