ROLLING ROLL OPERATION METHOD Russian patent published in 2003 - IPC

FIELD: rolled stock production, possibly method of operation of steel rolling rolls of cold rolling mills. SUBSTANCE: method comprises steps of low-temperature tempering of roll before starting its operation; soaking it at temperature 160 - 190 C during time period equal to (0.1 - 0.3)HSD hours; operation of roll in stand and forced idling of it including heating stage at rate 25 - 80 C/h , soaking stage at 170 - 250 C during 6 - 20 h and cooling stage at rate 10 -60 C/h; realizing idling after roll operation period providing rolling of 45 - 50% of normalized rolled metal quantity at preliminarily removing by working surface layer of roll with thickness equal to (0.001 -0.01)HSD mm, where HSD - hardness of roll barrel according to Shore. EFFECT: reduced number of crumblings and scalings of hardened layer of roll. 1 tbl