METAL-BAND HOT-ROLLING METHOD AND APPARATUS USING NEAR INFRARED CAMERA

Title:

METAL-BAND HOT-ROLLING METHOD AND APPARATUS USING NEAR INFRARED CAMERA

Document Type and Number:

WIPO Patent Application WO/2008/105479

Kind Code:

A1

Abstract:

Provided are a hot-rolling line capable of performing a quality assurance of a product supply to a demander, an overall photographing method of a hot-rolled metal band, an overall width photographing result recording method, a method for a proper quality assurance, and a hot-rolled metal band manufacturing method using the assurance method. These methods are characterized in that they can detect even a portion, which has a locally low temperature, as called the black spot, without fail. The photography is done by disposing a near infrared camera (25A) capable of photographing the overall width of a hot-rolled metal band (8), on the coiler (24) entrance side of a hot-rolling line (100). The quality of the hot-rolled metal band (8) is decided by using the result of the photography of the overall width or additionally the whole length of the hot-rolled metal band (8).

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Inventors:

NISHIURA NOBUO (JP)
MURATA TAKAYUKI (JP)
YANAGINO KOJI (JP)
NITTA KAZUHIRO (JP)
SAWADA HIROSHI (JP)

Application Number:

PCT/JP2008/053457

Publication Date:

September 04, 2008

Filing Date:

February 21, 2008

Export Citation:

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Assignee:

JFE STEEL CORP (JP)
NISHIURA NOBUO (JP)
MURATA TAKAYUKI (JP)
YANAGINO KOJI (JP)
NITTA KAZUHIRO (JP)
SAWADA HIROSHI (JP)

International Classes:

B21B1/26; B21B15/00; B21C51/00

Foreign References:

JP2005288463A	2005-10-20
JPH11156424A	1999-06-15
JPH0530741U	1993-04-23
JPH067845A	1994-01-18
JP2005279665A	2005-10-13
JP2003311326A	2003-11-05
JP2000313920A	2000-11-14

Other References: