Metallurgical apparatus – Process – Plugging or tapping
Patent
1993-09-30
1995-09-05
Kastler, Scott
Metallurgical apparatus
Process
Plugging or tapping
501130, B22D 1500
Patent
active
054472920
ABSTRACT:
This method comprises injecting a first primary plugging mass (4), mixed with a binder, having given composition and physico-chemical properties, and allowing this primary mass to thermically solidify; after a baking of this primary mass, drilling a hole (8) of a given length and thereby achieving a degassing, and injecting in this hole a second plugging mass, termed secondary mass, having suitable composition and physico-chemical properties which is mixed with a binder and is more fluid than the primary mass and has a hardening speed lower than the hardening speed of the primary mass, so that the secondary mass can diffuse into cracks in the primary mass before solidifying. The secondary mass reinforces the zones of the primary mass which have been rendered fragile by microcracking, and thereby again provides a suitable length of the tapping hole.
REFERENCES:
patent: 3607809 (1971-09-01), Elby
patent: 3770867 (1973-11-01), Criss
patent: 4276091 (1981-06-01), Cassens, Jr.
A. Dufour et al. "Renue de Metallurgie" vol. 89, No. 1, Jan. 1992, Paris, France, pp. 37-44.
T. Yamamoto et al. "Iron and Steel Engineer", Al.sub.2 O.sub.3 mud to decrease blast furnace tapping frequency, vol. 67, No. 6, Jun. 1990, Pittsburg, Pa., pp. 56-61.
Bouttement Jean-Luc
Farda Henri
Graber Harold
Menuge Jacques
Kastler Scott
Terres Refractaires Du Boulonnais
LandOfFree
Method for the injection of a plugging mass in a tapping hole of 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 for the injection of a plugging mass in a tapping hole of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the injection of a plugging mass in a tapping hole of will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-467954