Many people outside the industry, and plenty of newcomers inside it, share one misconception. They assume rolling means pushing a billet into a mill and letting the rolls squeeze it flat and long. That is all they see. Rolling is a precision metal forming process, and it does far more
Processus de laminage de l'acier: What Rolling Does to Steel Continuez à lire »
Roll maintenance drives three numbers on a cold rolling line: strip surface quality, roll consumption, and how often the mill stops. Three areas decide them, and this article works through each one in turn. First roll grinding, then non-destructive testing, then day-to-day service. 1. Introduction Cold rolled products have moved
Cold Roll Maintenance: Affûtage, Inspection and Service Practice Continuez à lire »
Roll crown decides whether cold-rolled strip comes out flat. The result starts with the roll you select. This article covers roll selection and surface condition, crown selection and grinding, crown distribution across the rolls, hydraulic bending for shape control, and the tension settings that hold the profile in place. 1.
Roll Selection and Roll Crown Control in Cold Rolling Mills Continuez à lire »
Rolls are core consumable components of rolling mills, directly determining the dimensional accuracy, surface quality of rolled steel and roll consumption. Different rolling processes, load conditions and product requirements need rolls made from different materials. This article systematically introduces three major roll material categories: rouleaux en fonte, rouleaux d'acier moulé
Brève introduction aux matériaux en rouleaux Continuez à lire »
The surface quality of cold rolled strip is closely related to rolls with high grinding quality. In the production practice of a cold rolling mill, straight chatter marks often appear during roll grinding. These defects will inevitably transfer to the strip surface in the rolling process, seriously damaging the appearance
