EP 0094926 B1 19860226 - ORIFICE FOR INJECTING A PROTECTING GAS INTO A CASTING TUBE
Title (en)
ORIFICE FOR INJECTING A PROTECTING GAS INTO A CASTING TUBE
Publication
Application
Priority
BE 208080 A 19820513
Abstract (en)
[origin: US4519438A] A casting tube 8 of a refractory material comprises at its upper end a series of openings for the injection of a protective gas, for example argon, to create an atmosphere which protects the incoming molten metal against oxidation and cools the walls of the casting tube. The injection openings are grooves 11 formed in an upper frustoconical part of the casting tube, whose outer surface defines a fixing collar. These grooves are interconnected by an annular passage 12.
IPC 1-7
IPC 8 full level
B22D 11/10 (2006.01); B22D 11/106 (2006.01); B22D 41/58 (2006.01); C21C 7/072 (2006.01); F27D 3/14 (2006.01); F27D 3/16 (2006.01)
CPC (source: EP US)
B22D 41/58 (2013.01 - EP US); C21C 7/072 (2013.01 - EP US); F27D 3/14 (2013.01 - EP US); F27D 3/16 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0094926 A1 19831123; EP 0094926 B1 19860226; BE 893168 A 19821116; DE 3362258 D1 19860403; JP H0142787 B2 19890914; JP S58209453 A 19831206; US 4519438 A 19850528
DOCDB simple family (application)
EP 83870047 A 19830511; BE 208080 A 19820513; DE 3362258 T 19830511; JP 8343183 A 19830512; US 49446583 A 19830513