Molten metal transfer crucible with external filter

Details Molten metal transfer crucible with external filter Molten metal transfer crucible with external filter

1984-04-20

1986-01-14

Rutledge, L. Dewayne

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

By separating metal in a molten mass from undesired...

266275, 222603, 222629, 222591, C21C 704

Patent

active

045641757

ABSTRACT:
The molten metal transfer crucible of the present invention filters molten metal during transfer of the molten metal to a receptacle such as a mold. The molten metal transfer crucible of the present invention is fitted with an external removable filter blade. The removable filter blade contains a filter element and is positioned with respect to an inlet in the transfer crucible such that molten metal is filtered by passing through the filter element contained in the blade while the crucible is being filled with molten metal. During operation molten metal can be intermittently back-flushed through the filter element contained in the blade. Back-flushing molten metal through the filter element extends the life of the filter element, and thereby increases the hours the transfer crucible may be operated between blade changes.

REFERENCES:
patent: 3907962 (1975-09-01), Ogiso
patent: 4113241 (1978-09-01), Dore
patent: 4394271 (1983-07-01), Groteke
patent: 4444377 (1984-04-01), Groteke et al.

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