Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – By separating metal in a molten mass from undesired...
Patent
1999-05-26
2000-06-13
Kastler, Scott
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
By separating metal in a molten mass from undesired...
266275, 222594, C21B 714, C21B 300
Patent
active
060746009
ABSTRACT:
This invention relates to modifying the inside bottom surface of a tundish for continuous casting molten steel to minimize turbulence thereby reducing gas bubble and slag entrainment during continuous casting of steel, especially when initially filling of the tundish. Turbulence mitigation tends to avoid entrapment of oxide inclusions in a cast slab. This invention is for an elongated tundish (10) including a pair of spaced refractory lined side walls (12) disposed in a longitudinal direction, a pair of spaced refractory lined end walls (14) extending in a lateral direction between the side walls, a refractory lined floor (16), a molten metal impact pad (18) and a molten steel outlet (20). A refractory lined weir (26) is positioned between the impact pad and the steel outlet. A refractory ramp (34) is positioned between the weir and the steel outlet. The ramp is mounted to the floor and extends the full width of the floor in the lateral direction contacting each of the side walls. The ramp has first and second surfaces with a first surface (40) adjacent the outlet and inclined downwardly at an angle of 20-50.degree. and a second surface (42) facing the weir having a substantially vertical face. Liquid steel cleanliness is improved and submerged entry nozzle clogging is reduced.
REFERENCES:
patent: 4671499 (1987-06-01), Ishiyama et al.
patent: 4770395 (1988-09-01), Thanh et al.
patent: 4776570 (1988-10-01), Thanh et al.
patent: 4852632 (1989-08-01), Jackson et al.
patent: 4995592 (1991-02-01), Kegan et al.
patent: 5131635 (1992-07-01), Soofi
patent: 5511766 (1996-04-01), Vassilicos
Suer Mark A.
Wolf Donald J.
Armco Inc.
Fillnow L. A.
Kastler Scott
LandOfFree
Modification of tundish dam to minimize turbulence does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modification of tundish dam to minimize turbulence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modification of tundish dam to minimize turbulence will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2066001