To suppress, prevent, and eradicate the defective quality due to hole-generation of a rolling material and the operation stop of a hot rolling line due to hole-generation of the rolling material.
A cemented carbide roll having a sleeve shape outer layer 191 made of cemented carbide is used as a work roll 19, and lubricant is supplied between the work roll 19 and the rolling material 8. The cemented carbide roll having the sleeve shape outer layer 191 made of cemented carbide can be used as the work roll 19 in the rolling mills, which produces the rolling material 8 having an exit side thickness of 10 mm or less, among finishing rolling mills 18, while the lubricant is supplied between the work roll 19 and the rolling material 8. The lubricant containing 10 vol.% or more of synthetic ester can be supplied toward the surface of the cemented carbide roll at the rate of 25 to 300 cc/min/m.
WATANABE YUICHIRO
MATSUBARA YUKIHIRO
| JPH10277614A | 1998-10-20 | |||
| JP2004195518A | 2004-07-15 | |||
| JP2000351002A | 2000-12-19 |
Keisuke Matsuyama
Tsuyoshi Makino
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