Roeckner tube rolling mill
1.PROPORTIONAL CHARGE-OVER VALVE AND ITS APPLICATION TO φ140 SEAMLESS STEEL TUBE ROLLING MILL (concluded)
3.Based upon the theoretical analysis of the nonlinear deformation area during skew rolling,the calculation formula to design the roller cone angle of smooth rolling is deduced from the principle of sustained equal interstice between roll and plug at the time of tube wall smooth rolling,and the result of calculation coincides well with the parameters provided by Demag Company for Bac Steel tube rolling mill.

