Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1975-12-09
1977-08-23
Baldwin, Robert D.
Metal founding
Process
Shaping liquid metal against a forming surface
164270, 164282, B22D 1112
Patent
active
040433820
ABSTRACT:
In a type of continuous casting of steel in which a straight mold is employed and a cast strand is guided while being bent, molten steel is continuously teemed into said straight mold; an unsolidified cast strand with a solidified shell formed on it is guided substantially vertically downward within a range from 3 to 7m from the meniscus of molten steel in said straight mold; then, said unsolidified cast strand being in the vertical position is guided within a range from 1 to 4m while being bent at multiple points by gradually decreasing the radius of curvature of said cast strand for each of successively arranged pairs of bending rollers; then the solidification of said unsolidified cast strand thus bent at multiple points is completed before a spot-straightening point while further guiding said cast strand along a constant curvature, the track length of said constant curvature guide being within a range from 35 to 85% of the length from said meniscus of molten steel in said straight mold up to said spot-straightening point; then, said cast strand is reduced, near its solidification completing point, at a draft of 0.1 to 2.0% per pair of reduction rolls; and then, said reduced cast strand is straightened in a substantially horizontal direction at a single point at said spot-straightening point; whereby a continuously cast strand free from or with remarkably decreased inner and outer defects is obtained.
REFERENCES:
patent: 3290741 (1966-12-01), Olsson
patent: 3656536 (1972-04-01), Colombo
patent: 3680623 (1972-08-01), Tarmann et al.
patent: 3893503 (1975-07-01), Eibl
patent: 3908744 (1975-09-01), Fastner
patent: 3974559 (1976-08-01), Kawawa et al.
Hasebe Nobuhisa
Kobatake Tatsuo
Matsumoto Toshio
Saito Katashi
Baldwin Robert D.
Nippon Kokan Kabushiki Kaisha
LandOfFree
Method and apparatus for continuously casting steel 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 and apparatus for continuously casting steel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for continuously casting steel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2310140