JPS6457905A - Steel sheet for painting and its manufacturing method and method for forming dull spots on work roll - Google Patents

Steel sheet for painting and its manufacturing method and method for forming dull spots on work roll

Info

Publication number
JPS6457905A
JPS6457905A JP63119316A JP11931688A JPS6457905A JP S6457905 A JPS6457905 A JP S6457905A JP 63119316 A JP63119316 A JP 63119316A JP 11931688 A JP11931688 A JP 11931688A JP S6457905 A JPS6457905 A JP S6457905A
Authority
JP
Japan
Prior art keywords
steel sheet
roll
work roll
painting
spots
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP63119316A
Other languages
Japanese (ja)
Other versions
JPH0518643B2 (en
Inventor
Kusuo Furukawa
Shunji Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP63119316A priority Critical patent/JPS6457905A/en
Publication of JPS6457905A publication Critical patent/JPS6457905A/en
Publication of JPH0518643B2 publication Critical patent/JPH0518643B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys

Abstract

PURPOSE:To improve the brightness of a steel sheet for painting by forming dull spots on a work roll by high energy beam irradiation meeting specific requirements and forming dull spot train titled at a prescribed deviation angle to both the orthogonal direction and the rolling direction on the steel sheet surface. CONSTITUTION:Transferable dull spots are formed on the surface of a work roll by shifting high energy beams such as laser beams in many places on the roll surface. In that time, the number of irradiations Q of beams per unit time is controlled based on a set pinch SmLo between adjacent dull spots in the roll peripheral direction so as to meet the inequality I. Then, a steel sheet for painting is rolled by use of the spotted work roll to correctly transfer the roll dull spots onto the sheet surface. In that case, the central line of adjacent dull spots has both deviation angles of alpha and beta tilting to the sheet rolling direction and to the orthogonal direction to the rolling direction and being set to be <=20 deg.. Hence, the brightness of the sheet is remarkably improved.
JP63119316A 1987-05-19 1988-05-18 Steel sheet for painting and its manufacturing method and method for forming dull spots on work roll Granted JPS6457905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63119316A JPS6457905A (en) 1987-05-19 1988-05-18 Steel sheet for painting and its manufacturing method and method for forming dull spots on work roll

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12021287 1987-05-19
JP63119316A JPS6457905A (en) 1987-05-19 1988-05-18 Steel sheet for painting and its manufacturing method and method for forming dull spots on work roll

Publications (2)

Publication Number Publication Date
JPS6457905A true JPS6457905A (en) 1989-03-06
JPH0518643B2 JPH0518643B2 (en) 1993-03-12

Family

ID=26457078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63119316A Granted JPS6457905A (en) 1987-05-19 1988-05-18 Steel sheet for painting and its manufacturing method and method for forming dull spots on work roll

Country Status (1)

Country Link
JP (1) JPS6457905A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03204103A (en) * 1989-12-29 1991-09-05 Nippon Steel Corp Steel plate and sheet excellent in brightness of reflectivity of painting and press workability
WO2008136082A1 (en) * 2007-04-20 2008-11-13 Nhk Spring Co., Ltd. Metal member, position detection device, drive device, object detection device, and method of processing metal member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03204103A (en) * 1989-12-29 1991-09-05 Nippon Steel Corp Steel plate and sheet excellent in brightness of reflectivity of painting and press workability
WO2008136082A1 (en) * 2007-04-20 2008-11-13 Nhk Spring Co., Ltd. Metal member, position detection device, drive device, object detection device, and method of processing metal member

Also Published As

Publication number Publication date
JPH0518643B2 (en) 1993-03-12

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees