| US 7,556,701 B2 | ||
| Method for cooling hot roller steel strip, and method for manufacturing hot rolled steel strip | ||
| Akio Fujibayashi, Fukuyama (Japan); Sadanori Imada, Fukuyama (Japan); Yoshimichi Hino, Fukuyama (Japan); Toru Minote, Fukuyama (Japan); Yoichi Motoyashiki, Fukuyama (Japan); and Shozo Ikemune, Fukuyama (Japan) | ||
| Assigned to JFE Steel Corporation, Tokyo (Japan) | ||
| Filed on Dec. 01, 2006, as Appl. No. 11/607,425. | ||
| Application 11/607425 is a division of application No. 11/333571, filed on Jan. 17, 2006, granted, now 7,357,894. | ||
| Application 11/333571 is a division of application No. 10/793480, filed on Mar. 03, 2004, granted, now 7,052,647. | ||
| Application 10/793480 is a division of application No. 10/046106, filed on Oct. 24, 2001, granted, now 6,733,720. | ||
| Application 10/046106 is a continuation of application No. PCT/JP01/01480, filed on Feb. 28, 2001. | ||
| Claims priority of application No. 2000-056211 (JP), filed on Mar. 01, 2000; application No. 2000-056218 (JP), filed on Mar. 01, 2000; application No. 2000-315277 (JP), filed on Oct. 16, 2000; and application No. 2001-038710 (JP), filed on Feb. 15, 2001. | ||
| Prior Publication US 2007/0074794 A1, Apr. 05, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C21D 8/00 (2006.01) | ||
| U.S. Cl. 148—333 [148/602] | 13 Claims |
| 1. A method for cooling a hot rolled steel strip comprising:
(a) transferring a hot rolled steel strip while ejecting cooling water from a cooling means at a specified ejecting condition;
(b) pinching a top end of the hot rolled steel strip by a pinching roll, at the inlet of the cooling means and/or just behind
the cooling means and/or at a position on the way of the cooling means; and
(c) releasing the hot rolled steel strip sequentially from a pinch roll arranged at an upstream side, concurrently with the
arrival of a top end of the steel strip to a tension adding means arranged at a downstream side.
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