Influence of strip tension on strip thickness defects and offcut length

摘要

A detailed investigation by the research staff of the Australian Company IAS has analysed the impact of threading tensions on the thickness errors and disturbance lengths. An important performance measure of hot and cold rolling mills is the material, which has to be cropped oft the coil head and tail ends because it fails to meet the desired thickness tolerances. Typically the sum of these end lengths may be between 0.5 and 3.0 percent of the total coil length, a significant production cost. Thickness errors arise as a direct result ot the lack of tension on the exit or entry side of each stand as it threads or de-threads respectively at the coil ends.