PURPOSE: To obtain a strip excellent in flatness by one pass without generating stretcher strain in a titled rolling a by restricting strip tension at the outlet and inlet sides of a skin pass mill and a limit of rolling down force for the sheet thickness at a skin pass mill roll.
CONSTITUTION: In skin pass rolling a cold-rolled ferritic stainless steel strip, a strip tension at the outlet and inlet sides of a sking pass mill is regulated to the tension expressed by an equation (where, TF; strip tension at the outlet side of a skin pass mill, TB; strip tension at the inlet side of the mill, σy; yielding stress kg/mm2 of a strip to be rolled). Further, a rolling down force of a skin pass mill roll is kept within a limit as shown by ABCD. In this way, the skin pass rolling of strip can be completed by one pass, and its productivity is remarkably improved.
KAMIYA AKIHIKO
SANAGA SHIYUUICHI
YAMAMOTO JIYUNICHI
| JPS53102857A | 1978-09-07 | |||
| JPS5226340A | 1977-02-26 |