Investigation of the kinematics of powder motion in hoppers during rolling

Summary The authors investigated the kinematics of the motion of powder in the hopper when the powder in freelypoured into a gap between stationary rollers, during rolling on mills having rollers of various diameter with varying thickness of feeding during horizontal and vertical direction of rolling and during rolling of three-layer strips.The nature of the non-uniformity of feeding of the powder into the deformation zone was established in relation to the hopper width and the nature of the displacement of the powder during the rolling of three-layer strips.The distribution of speeds in the cross section of the exit of the powder of the shell into the deformation zone during the rolling of three-layer strips is determined.