JPS6479358A - Production of colored galvanized steel sheet - Google Patents

Production of colored galvanized steel sheet

Info

Publication number
JPS6479358A
JPS6479358A JP23847187A JP23847187A JPS6479358A JP S6479358 A JPS6479358 A JP S6479358A JP 23847187 A JP23847187 A JP 23847187A JP 23847187 A JP23847187 A JP 23847187A JP S6479358 A JPS6479358 A JP S6479358A
Authority
JP
Japan
Prior art keywords
steel sheet
colored
galvanized
galvanized steel
cooled
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.)
Pending
Application number
JP23847187A
Other languages
Japanese (ja)
Inventor
Hiroshi Fukutome
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP23847187A priority Critical patent/JPS6479358A/en
Publication of JPS6479358A publication Critical patent/JPS6479358A/en
Pending legal-status Critical Current

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  • Coating With Molten Metal (AREA)

Abstract

PURPOSE:To easily produce a colored galvanized steel sheet having excellent appearance and paint adhesiveness and desired color tones by spraying Zn alloy powder contg. a metal element having a coloration effect on the surface of a galvanized steel sheet in an unsolidified state right after hot dip zinc coating thereby forming a colored oxide film thereon. CONSTITUTION:The steel sheet 1 is galvanized in a hot dip zinc coating bath 2 and thereafter, the coating weight is controlled by a gas wiper 3. The Zn alloy powder contg. the metal element having the coloration or color assisting effect is then sprayed by a spraying device 4 to the steel sheet in the position where the galvanizing is not solidified. This steel sheet is oxidized in an oxidizing atmosphere in a heating furnace 5 to form the colored oxide film on the surface thereof and is cooled by a jet cooler 6. The colored steel sheet 1' is cooled with water in a water jet cooler 7 and is dried in a dryer 8; following which the steel sheet is treated by a chromate treatment device 9 and a clear treatment device 11, respectively.
JP23847187A 1987-09-22 1987-09-22 Production of colored galvanized steel sheet Pending JPS6479358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23847187A JPS6479358A (en) 1987-09-22 1987-09-22 Production of colored galvanized steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23847187A JPS6479358A (en) 1987-09-22 1987-09-22 Production of colored galvanized steel sheet

Publications (1)

Publication Number Publication Date
JPS6479358A true JPS6479358A (en) 1989-03-24

Family

ID=17030729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23847187A Pending JPS6479358A (en) 1987-09-22 1987-09-22 Production of colored galvanized steel sheet

Country Status (1)

Country Link
JP (1) JPS6479358A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432542A (en) * 1990-05-29 1992-02-04 Nikko Aen Kk Jig for colored zing plating
JPH0432543A (en) * 1990-05-29 1992-02-04 Nikko Aen Kk Jig for colored zinc plating
KR100312407B1 (en) * 1997-07-10 2001-12-12 이구택 Method of coloring hot dip galvanized steel sheet in cgl(continuous galvanizing line)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432542A (en) * 1990-05-29 1992-02-04 Nikko Aen Kk Jig for colored zing plating
JPH0432543A (en) * 1990-05-29 1992-02-04 Nikko Aen Kk Jig for colored zinc plating
KR100312407B1 (en) * 1997-07-10 2001-12-12 이구택 Method of coloring hot dip galvanized steel sheet in cgl(continuous galvanizing line)

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