EP 0048641 B1 19841227 - MEANS FOR PROTECTING MOLTEN METAL IN A SLIDING GATE
Title (en)
MEANS FOR PROTECTING MOLTEN METAL IN A SLIDING GATE
Publication
Application
Priority
FR 8019837 A 19800915
Abstract (en)
[origin: US4480770A] This invention relates to the protection of the teeming flow or stream of molten metal contained in a vessel and passing through a plate-type valve or cut-off device of the kind comprising a stationary plate and a displaceable plate that is provided with at least one output nozzle. A gas which is substantially inert with respect to the metal and has a pressure slightly higher than atmospheric pressure is fed into the aforesaid device, and this gas surrounds the metal while the latter passes through the said device, in such manner as to isolate the same from the ambient air by an uninterrupted protective gaseous barrier.
IPC 1-7
IPC 8 full level
B22D 7/12 (2006.01); B22D 41/08 (2006.01); B22D 41/42 (2006.01); B22D 41/58 (2006.01)
CPC (source: EP US)
B22D 41/42 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0048641 A1 19820331; EP 0048641 B1 19841227; EP 0048641 B2 19890920; AR 225364 A1 19820315; AT E10915 T1 19850115; AU 543563 B2 19850426; AU 7389881 A 19820325; CA 1186146 A 19850430; DE 3167942 D1 19850207; FR 2490123 A1 19820319; FR 2490123 B1 19831209; JP S5752564 A 19820329; US 4480770 A 19841106; ZA 815454 B 19820728
DOCDB simple family (application)
EP 81401315 A 19810818; AR 28663281 A 19810902; AT 81401315 T 19810818; AU 7389881 A 19810807; CA 385354 A 19810908; DE 3167942 T 19810818; FR 8019837 A 19800915; JP 12541781 A 19810812; US 29432381 A 19810819; ZA 815454 A 19810707