Key Anti-Friction Technology Breakthrough in Steel Collars: First Using Electro Slag Remelting in the Second Remelting of Hss Collars

This is the first time in the steel industry that the steel mill applies the electro slag remelting to high-tungsten HSS roll collars for the second remelting after centrifugal casting. Such successful innovation in high-tungsten HSS roll collars dramatically enhances the life span of HSS roll collars more than that of ordinary alloy steel cast roll collars. Besides, this technology breakthrough improves the anti-friction bearing of collars and it leads to more efficient and economical advantages. The experiments evidences are presented in this study.