Specialized metallurgical processes – compositions for use therei – Compositions – Loose particulate mixture containing metal particles
Reexamination Certificate
2003-01-21
2009-11-10
King, Roy (Department: 1793)
Specialized metallurgical processes, compositions for use therei
Compositions
Loose particulate mixture containing metal particles
C075S305000, C075S309000, C164S072000, C164S138000, C106S038270
Reexamination Certificate
active
07615095
ABSTRACT:
A powder product for the protection of centrifugal casting molds for cast iron pipes includes an inoculating metal alloy and possibly mineral powders, and a strongly reducing metal that is volatile at the temperature of the liquid cast iron. The use of products according to the invention prevents accumulation of dirt on molds and improves the surface condition of the cast iron pipes.
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Dennison, Schultz & MacDonald
King Roy
Mai Ngoclan T
Pechiney Electrometallurgie
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