Patent ID: 6450861
Filing Date: 2002-09-17
Classification: B21B,B24B,B24D,G05B

Abstract:
A rolling mill equipped with an on-line roll grinding system comprising:a grinding wheel positioned to face one of a pair of mill rolls for grinding said mill roll, grinding wheel moving means for pressing said grinding wheel against said mill roll, and grinding wheel traverse means for moving said grinding wheel in the axial direction of said mill roll wherein: said grinding wheel comprises a wheel disk and an abrasive layer formed on one side of said wheel disk facing said mill roll; said on-line roll grinding system further comprising control means for changing a rate of grinding of said mill roll measured by an on-line profile meter, and; said rolling mill comprising at least one of roll bender means for applying bender forces to said mill roll, roll shifting means for shifting said mill roll in the axial direction and roll cross means for making said pair of mill rolls crossed with respect to each other, and control means for controlling at least one of the bender forces by said roll bender means, a shift position by said roll shifting means and a cross angle by said roll cross means based on the profile of said mill roll measured by said on-line profile meter so that a strip crown approaches a target strip crown.