Metal treatment – Process of modifying or maintaining internal physical... – With casting or solidifying from melt
Reexamination Certificate
2008-05-20
2008-05-20
King, Roy (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
With casting or solidifying from melt
C148S320000
Reexamination Certificate
active
07374623
ABSTRACT:
A metallurgical product, made of carbon steel and to be galvanized, which is in the form of a strip or of a sheet obtained from a continuously cast intermediate product having the following composition by weight: 0.0005%≦C≦0.15%; 0.08%≦Mn≦2%; Si≦0.040%; Altotal≦0.010%; Alsoluable≦0.004%; 0.0050%≦Ototal≦0.0500%; P≦0.20%; S≦0.10%; each of Cu, Cr, Ni, Mo, W, Co≦1%; each of Ti, Nb, V, Zr≦0.5%; each of Sn, Sb, As≦0.1%; B≦0.1%; N≦0.0400%; and the remainder being iron and impurities. Also, a process for obtaining a metallurgical intermediate product, which includes: producing in a ladle a liquid steel the composition of which is as above, and in which the dissolved oxygen content is maintained between 0.0050 and 0.0500% by the establishment of a chemical equilibrium between the metal and the ladle slag; and casting the steel on a continuous casting machine.
REFERENCES:
patent: 3769004 (1973-10-01), Barnhardt et al.
patent: 3793000 (1974-02-01), Miltenberger
patent: 3988174 (1976-10-01), Kawano
patent: 4014683 (1977-03-01), Miltenberger
patent: 4024624 (1977-05-01), Bassett, Jr. et al.
patent: 4073643 (1978-02-01), Kumai et al.
patent: RE31251 (1983-05-01), Nakasugi et al.
patent: 4746361 (1988-05-01), Pielet et al.
patent: 4928748 (1990-05-01), Guthrie et al.
patent: 5460665 (1995-10-01), Yasuhara et al.
patent: 6767415 (2004-07-01), Sardoy et al.
patent: 2002/0174746 (2002-11-01), Gross et al.
patent: 0387786 (1990-09-01), None
patent: 578 221 (1994-01-01), None
patent: 785 283 (1997-07-01), None
patent: 792 942 (1997-09-01), None
patent: 906 960 (1999-04-01), None
patent: 361288016 (1986-12-01), None
patent: 07266005 (1995-10-01), None
Damasse Jean-Michel
Faral Michel
Le Papillon Yann
Leclercq Alain
Marchionni Christian
King Roy
Roe Jessee
Sughrue & Mion, PLLC
Usinor
LandOfFree
Metallurgical product of carbon steel, intended especially... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metallurgical product of carbon steel, intended especially..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metallurgical product of carbon steel, intended especially... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2769943