In the production of stainless steel tubes (titanium tubes) from stainless steel strips, a process called cold welding is sometimes employed. But cold welding can damage the surface of stainless steel tube (titanium tube) . In addition, the relative tangent velocity between the Tube and the roll is the main reason for the friction between the tube and the roll. Due to the influence of cold welding and relative linear velocity, the surface sliding property of the forming roll is necessary to obtain the surface quality of the steel tube. 
        Advantages of high aluminum bronze: Long Service life of roll, non-stick die product quality roll without heat treatment and surface coating when producing low carbon steel pipe, TS4 roller is also an important application in welding production line. The advantage of TS4 roller is that TS4 is non-magnetic. The intense induction to the pressure roller caused by the heating of the high frequency seam welding is avoided. TS4 HIGH-ALUMINUM BRONZE: non-magnetic no intense heat, easy cooling steel tube surface quality TS4 high-aluminum bronze alloy new material to get kyuli special material, Farino welded pipe and other users of high evaluation. The mould made of TS4 material has been exported to the European and American markets such as Switzerland, Germany and USA. Roll Steel, roll bearing, roll design