The wearing condition of Φ600 mm×2000 mm CVC roll made of 3.50C- 1.20Si- 1.20Mn-2. 10Cr-4.50Ni- 0.80Mo high chromium high nickel casting iron has been measured in site at CSP hot rolling mill
Lianyuan Steel. The results showed that the roll wearing presented typical box shape
the effect of temperatture on roll wearing was obvious
and the maximum cffective location was at midway of box bottom with maximum difference was 85.1 μm. Since the grinding accuracy of roll grinding machine is ≤10 μm
therefore the roll should be cooling to less than 10 ℃ before grinding.