Electric heating – Metal heating – By arc
Patent
1990-07-31
1993-04-20
Paschall, Mark H.
Electric heating
Metal heating
By arc
21912138, 21912148, 21912137, B23K 900
Patent
active
052045080
ABSTRACT:
A method and apparatus is disclosed for removing chevron cracks from the corner edges of a steel billet as it advances in a hot condition from a continuous casting operation. The apparatus includes a framework which mounts four plasma arc torches which are adapted to operate in the non-transfer arc mode, and with the torches being positioned so that the heated plasma engages respective ones of the four corner edges of the billet, to melt and heal any cracks. The framework is cyclically advanced rearwardly and forwardly along the path of travel of the billet, so as to permit effective control of the level of heating and so as to assure all longitudinal portions of the advancing billet are effectively treated.
REFERENCES:
patent: 2125175 (1938-07-01), Jones
patent: 2157313 (1939-05-01), Alles et al.
patent: 2306370 (1942-12-01), Anderson
patent: 2487974 (1949-11-01), Kirk
patent: 2538074 (1951-01-01), Anderson
patent: 3337202 (1967-08-01), Gruber
patent: 3538297 (1970-11-01), Maniero et al.
patent: 3596047 (1971-07-01), Maniero et al.
patent: 3966504 (1976-06-01), Sipek et al.
patent: 4194727 (1980-03-01), Layden et al.
patent: 4318439 (1982-03-01), Hiroshima et al.
patent: 4393296 (1983-07-01), Dompas
patent: 4405382 (1983-09-01), Baier et al.
Paschall Mark H.
Plasma Energy Corporation
LandOfFree
Method and apparatus for enhancing the quality of cast billets 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 enhancing the quality of cast billets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for enhancing the quality of cast billets will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1527516