Computer-controlled cold rolling process for steel strip involves using tension regulation assembly which calculates tension in accordance with weld seam width

摘要

A sheet strip metal (4) rolling mill has draw tension measuring rollers (6, 7) between two pairs of feed rollers (1-3) and determining the actual tension (Z1, Z2) in the strip. The values (Z1, Z2) are fed to a tension regulation assembly (8, 9) which calculates target tension values (Z1asterisk, Z2asterisk) using a pre-determined process making adjustments ((sasterisk, (vasterisk) for each roller unit. The pre-determined adjustment process is dependent upon the length (4) of a seam weld within the rolling mill. An Independent claim is given for computer-controlled software for the process.