Improving Thin Strip Profile Using Work Roll Cross and Work Roll Shifting Methods in Cold Strip Rolling

Table 1

Work roll and backup roll specifications.

Material of work roll and backup roll
Grade	CDH25
C	0.90
Sil	0.55
Mn	0.45
P	0.012
S	0.003
Ni	0.15
Cr	3.19
Mo	0.26
Cu	0.25
V	0.009
Induction hardening, cryogenic treatment, and surface condition
Hardness	HRC 65
Depth of heat treatment layer	>1.0 mm, heat treatment is conducted after roll groove is machined
Work roll and backup roll surface roughness	0.2 μm