METHOD FOR OPERATION OF BACKING-UP ROLL

摘要

FIELD: rolling; may be used in quarto mill for hot and cold rolling of sheet steel. SUBSTANCE: method includes alternating of operation of backing-up roll in contact with adjacent working roll and regrinding for removal of cold work layer. Value of removal in regrinding is preset equalling 0.2-0.3 length of contact curve of backing-up roll with adjacent working roll to reduce expandable coefficient of backing-up roller cost of sheet rolled products. EFFECT: higher efficiency. 2 cl, 1 dwg , 1 tblb