Rolling mill with laterally different velocities

Abstract

Each of a pair of rolls has a barrel with different diameters axially of the barrel such that sum of the diameters of the barrels is substantially constant and that each of the rolls is bilaterally symmetrical. The rolls themselves have an ability to control workpiece profile.

Description

technical field [0001] The invention relates to a transverse differential rolling mill. Background technique [0002] Typically, metal workpieces are rolled by passing between upper and lower rolls in a rolling mill. [0003] It is known in the art that during rolling, such as Figure 28 As shown, rotating the upper roll 1 and the lower roll 2 with different rotational speeds or different peripheral speeds will cause the reverse frictional shear force to act on the upper and lower surfaces of the rolled piece 3 passing through the roll gap 4; Compared with the rolling operation performed by rotating the rolls 1 and 2 at the same speed, the same rolling reduction is obtained at a lower rolling force, or a higher rolling reduction is obtained at the same rolling force The amount of depression. This is known as circumferential differential rolling or differential rolling, and such rolling techniques are widely used. [0004] In the above-mentioned differential rolling, the g...

AI Technical Summary

Problems solved by technology

The object of the present invention is to provide a transverse differential rolling mill which can apply rolling force to workpieces with different or non-uniform distribution laterally, and which can quickly adjust the distribution curve during the rolling process. Therefore, compared with the traditional differential rolling mill , it basically solves the problem of edge thinning and rolled piece crown

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