C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
117/94
C23C 2/02 (2006.01) C23C 2/06 (2006.01) C23C 2/28 (2006.01)
Patent
CA 2038504
ABSTRACT OF THE DISCLOSURE A method of producing a hot-dip galvannealed steel sheet from a very-low-carbon cold-rolled steel sheet containing not less than 0.01 wt% but not more than 0.1 wt% of Ti, by subjecting the cold-rolled steel sheet to a process conducted in a continuous hot-dip galvanizing system including a heat treatment, hot-dip galvanizing and a subsequent galvannealing. The method is characterized by the steps of: subjecting the cold-rolled steel sheet to a degreasing and an acid cleaning; subjecting the degreased and acid-cleaned steel sheet to a heat treatment conducted in a reducing gas atmosphere; and cooling the heat- treated steel sheet at a temperature not lower than 380°C but not higher than the hot-dip galvanizing bath temperature, before the steel sheet is subjected to the hot-dip galvanizing. The very- low-carbon cold-rolled steel sheet contains, not less than 0.01 wt% but not more than 0.1 wt% of Ti, not more than 0.005 wt% of C, not less than 0.01 wt% but not more than 0.1 wt% of A?, and the balance substantially incidental inclusions and Fe.
Hanazawa Toshitake
Hashiguchi Koichi
Isobe Makoto
Ohori Manabu
Yamato Koji
Kawasaki Steel Corporation
Smart & Biggar
LandOfFree
Method of producing hot-dip galvannealed steel sheet does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of producing hot-dip galvannealed steel sheet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing hot-dip galvannealed steel sheet will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1822911