C ausal A nalysis and H andling on R eduction D ifficulty in 1 450mm S ingle S tand C old R olling M ill
WANG Le
Abstract：In the production of extreme thin plates (finished thickness of 0.24 mm), 1 450 mm single stand cold rolling mill presented a series of problems, including rolling force explosion, reduction difficulty and general debugging nullity. Based on the theory of minimum reliable gauge, the analysis believed that the main reason of rolling difficulties in the final pass is the lubrication performance decreasing with the increase of the emulsion stability index after eliminating the influences of WR diameter, the modulus of elasticity, rolled piece deformation resistance force and before and after tension. By means of decreasing the stirring intension, improving the heating temperature, controlling the pH value and increasing the iron powder content etc, the emulsion stability index was appropriately reduced, and the lubrication performance was boosted rapidly. In this way, rolling process was conducted successfully.
Keywords：cold-rolled sheetreduction difficultyemulsion stability indexfriction coefficientlubrication
Publication Date：2013-11-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 14-16 )