EP 0021889 B1 19830209 - PROCESS FOR CONFINING MOLTEN METALS BY APPLYING AN ELECTROMAGNETIC FIELD
Title (en)
PROCESS FOR CONFINING MOLTEN METALS BY APPLYING AN ELECTROMAGNETIC FIELD
Publication
Application
Priority
FR 7914011 A 19790531
Abstract (en)
[origin: US4324266A] A device for confining liquid metals comprises a coil which surrounds a jet of liquid metal to be confined and means for causing an alternating current to flow through the coil. These means cause an alternating current to flow through the coil at a frequency which is less than the inverse of the product of the magnetic permeability of the liquid metal, the electrical conductivity of the metal and the square of the radius of the jet of the metal after confinement, in coherent units. The invention applies to the casting of steel, aluminium, copper and alloys thereof.
IPC 1-7
IPC 8 full level
B22D 11/01 (2006.01); B22D 39/00 (2006.01); B22D 41/08 (2006.01); B22D 41/14 (2006.01)
CPC (source: EP US)
B22D 11/015 (2013.01 - EP US); B22D 39/003 (2013.01 - EP US); B22D 41/08 (2013.01 - EP US); B22D 41/14 (2013.01 - EP US); Y10T 137/0391 (2015.04 - EP US); Y10T 137/2191 (2015.04 - EP US)
Designated contracting state (EPC)
BE DE GB IT LU NL SE
DOCDB simple family (publication)
EP 0021889 A1 19810107; EP 0021889 B1 19830209; DE 3061881 D1 19830317; FR 2457730 A1 19801226; FR 2457730 B1 19830318; US 4324266 A 19820413
DOCDB simple family (application)
EP 80400751 A 19800528; DE 3061881 T 19800528; FR 7914011 A 19790531; US 15442580 A 19800529