Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Reexamination Certificate
2007-01-09
2007-01-09
Kerns, Kevin (Department: 1725)
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
C164S442000
Reexamination Certificate
active
10344208
ABSTRACT:
A method and strand guide for supporting, guiding and cooling casting strands (1) made of steel, especially preliminary sections (2) for girders, which are cooled by injected water (29) and are drawn, serve to prevent cracks, especially surface cracks, from appearing in the microstructure by adapting the cooling conditions of the surface of the strand in the region of the secondary cooling, and serve to prevent undercooling of the strand shell, wherein in order to avoid an undesirable solidification structure on the upper flange edges or in other cross-sectional areas, the cooling and support of the beam blank format are so adapted to the solidification range that cooling and support are provided exclusively where a crater is formed. To this end, the casting strand (1) is cooled, by guiding the temperature in a specific manner in upper supporting segments (5, 6, 7), by means of spray-water jets the width of which at least matches the length of the supporting rollers on longitudinal and transversal sides (13, 14) of the cross section (1a) of the casting strand, and is decreasingly supported in an analogous manner with respect to the length of the casting path and the cooling state in core areas (15) of the cross section (1a) of the casting strand on the transversal sides (14) of said casting strand cross-section (1a) so that cooling occurs exclusively by means of water jets (8) which are oriented towards said core areas (15).
REFERENCES:
patent: 3837392 (1974-09-01), Rossi
patent: 4476914 (1984-10-01), Wrossok
patent: 04200844 (1992-07-01), None
Michael Cygler et al., “Near Net Shape Casting and Associated Mill Developments”, Iron and Iteel Engineer, 1995, No. 1, pp. 32-38.
Patent Abstract of Japan JP-56 039 158, Apr. 1981.
Patent Abstract of Japan JP-04 200844, Jul. 1992.
Patent Abstract of Japan JP-09 174210, Jul. 1997.
Michael Cygler et al. Near Net Shape Casting and Associated Mill Developments, Iran & Steel Engineer, 1995, No. 1, pp. 32-38.
J-M Dengler et al. “Das Gissen Von Beam Blanks in Electrical Steelmaking Plant . . . ”, Stahl & Eisen, 199, pp. 89-93.
Brotzki Herbert
Fest Thomas
Fischer Lothar
Letzel Dirk
Milewski Wilfried
Abelman ,Frayne & Schwab
Kerns Kevin
Lin I.-H.
SMS Demag
LandOfFree
Method and strand guide for supporting, guiding and cooling... 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 strand guide for supporting, guiding and cooling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and strand guide for supporting, guiding and cooling... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3805694