Metal treatment – Stock – Ferrous
Patent
1993-07-01
1994-10-18
Yee, Deborah
Metal treatment
Stock
Ferrous
148518, 148537, 148663, 420126, C21P 804, C22C 3806
Patent
active
053564936
ABSTRACT:
Blister-resistant steel sheet consists essentially of 0.0005 to 0.003 wt. % C, 0.10 to 2.2 wt. % Mn, 0.6 wt. % or less Si, 0.07 wt. % or less P, 0.025 wt. % or less S, 0.02 to 0.06 wt. % of sol. Al, 0.0035 wt. % or less N, 0.003 wt. % or less O, [(48/14)N+(48/32)S+4.times.(48/12)C] wt. % or less Ti and the balance being Fe and inevitable impurities; and smaller one of either Ti (wt. %) or [(48/14)N+(48/32)S] (wt. %) being [0.002 t.sup.2 +0.003] or more, where t is a thickness (mm) of the steel sheet. Method for producing blister-resistant steel sheet comprises preparing a cold rolled steel sheet having the composition of described above, and continuously annealing or continuous hot dip galvanizing by heating the steel sheet from room temperature to 650.degree.-720.degree. C. at a rate of 20.degree. C. sec or more and further to the soaking temperature above recrystallization temperature at a rate of 1.degree.-5.degree. C./sec.
REFERENCES:
patent: 3765874 (1973-10-01), Elias et al.
patent: 4011111 (1977-03-01), Hook
patent: 4504326 (1985-03-01), Tokunaga et al.
patent: 4586966 (1986-05-01), Okamoto et al.
patent: 4750952 (1988-06-01), Sato et al.
patent: 5041166 (1991-08-01), Matsuoka et al.
Hosoya Yoshihiro
Kanetoh Shuji
Kohira Satoshi
Koyanagi Daijiro
Nakamura Hiromi
NKK Corporation
Yee Deborah
LandOfFree
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