Core for molds for electrically melting metals for casting hollo

Details Core for molds for electrically melting metals for casting hollo Core for molds for electrically melting metals for casting hollo

1979-07-05

1981-05-26

Baldwin, Robert D.

Metal founding

Means to apply vacuum directly to work or to hold or...

Means applying vacuum or suction directly to molten casting...

164132, 249181, B22D 2702

Patent

active

042692580

ABSTRACT:
Mold core for electrically melting metals for casting hollow ingots wherein the core wall is divided lengthwise on its periphery and is designed to be taken apart. The wall is preferably made of at least two partial cylinders between which stave-like keys are positioned which can be removed inwardly.

REFERENCES:
patent: 2405254 (1946-08-01), Hopkins

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