Title:
METHOD OF PROLONGING GAS WASHING ROD HAVING POROUS WASHING HEAD MADE OF GRAPHITE
Document Type and Number:
Japanese Patent JPS552798
Kind Code:
A
Abstract:
The useful life is increased of gas scavenging lances having porous graphite flush heads for non-ferrous metal melts by flowing an inert gas, immediately after scavenging, through the lance in a de-energizing cage which surrounds the graphite parts of the lance while forming a narrow gap therewith until a temperature below the ignition temperature of graphite is obtained.
Inventors:
BUERUNAA BIYUTSUKAA
Application Number:
JP7245079A
Publication Date:
January 10, 1980
Filing Date:
June 11, 1979
Export Citation:
Assignee:
MESSER GRIESHEIM GMBH
International Classes:
C22B21/06; B22D1/00; C21C7/072; C22B9/05; F27D1/16; F27D3/16; F27D25/00; (IPC1-7): C22B9/05; C22B21/06