The diameter of the direct contact part between the roll and the workpiece during rolling. The working diameter of the roll of the plate and strip mill is the diameter of the roll body; the working diameter of the roll of the section steel mill refers to the diameter of the roll at the groove, such as the working diameter of a simple section hole (such as a box-shaped hole) is Dg=Dh-2h In the formula Dg is the working diameter of the roll, Dh is the diameter of the roll ring, and h is the depth of the groove.
Roll diameter and profile gauges When rolling sheet metal, foil and strip on a rolling mill, the working surfaces of the rolls wear faster. Therefore, a small-scale dedicated roll grinding machine section is set next to each rolling mill to regrind the worn rolls at any time.
The diameter of the rolls used on the rolling mill is 50-2500mm, and the length is up to 8000mm. The surface of the roll is often cylindrical, convex or underfield, and the precision of the surface shape is high. For example, the deviation of the longitudinal profile of the roll should not exceed 3~sum . The measurement of roll diameter and longitudinal forming is performed with manual dial calipers or with roller dial calipers that move along the surface of the roll.
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Mobile number: 13806267510
Email: sales@ytroll.com
Address: No. 1, Zhengyi Mingzhu Road, Bacheng Town,
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