Molten metal filtration system and process

Details Molten metal filtration system and process Molten metal filtration system and process

1989-03-30

1990-07-10

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75412, 266227, C21C 700, B01D 3502

Patent

active

049404890

ABSTRACT:
The present invention relates to an improved molten metal filtration system. The system comprises at least one filtration assembly positioned within a filter chamber intermediate a molten metal inlet and a molten metal outlet and a dam wall positioned intermediate each filtration assembly and each molten metal outlet. Each dam wall prevents the initial molten metal used to prime the filter(s) in each filtration assembly from proceeding directly to the outlet. Instead, the dam wall collects the initial molten metal and forms it into a pool of heated molten metal. This pool has been found to reduce the amount of heat loss during the filtration process. A process for using the filtration system of the present invention is also described.

REFERENCES:
patent: 3006473 (1961-10-01), Gamber
patent: 4007923 (1977-02-01), Chia
patent: 4024056 (1977-05-01), Yarwood et al.
patent: 4087080 (1978-05-01), Steinegger et al.
patent: 4092153 (1978-05-01), Yarwood et al.
patent: 4277281 (1981-07-01), Weber et al.
patent: 4619443 (1986-10-01), Mitchell
patent: 4640497 (1987-02-01), Heamon
patent: 4667939 (1987-05-01), Luyckx

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