Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Patent
1985-11-07
1987-09-15
Godici, Nicholas P.
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
164490, B22D 1110
Patent
active
046932968
ABSTRACT:
A break ring formed by providing a frame having a cross-section complementary to the exterior portion of the break ring, and the frame having an interior base of the cross-section of the break ring which will be in contact with the molten metal in the continuous caster is disclosed. The frame is thereafter filled with plasma sprayed boron nitride, silicon nitride, or whatever material is to immediately contact the metal in the horizontal continuous caster. This is subsequently followed by the spraying of a substrate onto the skin of the break ring, whereafter the body portion is finally filled. Detonation gun-type spraying is also contemplated, but a plasma gun forms a superior coating and gives more flexibility. Finally, the body is formed interiorly of the break ring further by plasma application or by casting. In one option, a cooling tube is laid into the body portion. The break ring itself is characterized by a continuous construction with a skin preferably of boron nitride or related materials, a substrate of zirconium oxide or aluminum oxide or silicon carbide, and a body of copper or equivalent materials. Optionally the body contains a coolant tube which can be constantly flushed during the course of casting and maintain the break ring at a temperature below that of the metal being cast.
REFERENCES:
patent: 3642058 (1972-02-01), Webbere
patent: 3726333 (1973-04-01), Goodrich
patent: 4044217 (1977-10-01), Otsuki
patent: 4357382 (1982-11-01), Lambert
Dominik Jack E.
Flo-Con Systems, Inc.
Godici Nicholas P.
Reid G. M.
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