Process for direct chill casting of metals

Details Process for direct chill casting of metals Process for direct chill casting of metals

1977-07-29

1979-06-12

Spicer, Jr., Robert L.

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164 73, 164 66, 164124, 164126, B22D 1112, B22D 1116

Patent

active

041577280

ABSTRACT:
A direct chill casting of metals, particularly hot top casting of aluminum and its alloy, is improved by applying a gas pressure to the metals from directly below the overhang of a feed reservoir for receiving a melt to be cast.
The direct chill casting is further improved by supplying a lubricating oil from a slit for conveying the gas to the inner wall of the mold.
By using the process and the apparatus according to the invention, ingots having excellent smooth surfaces and reduced segregation can be reliably produced with a reduction in the amount of the lubricating oil used.

REFERENCES:
patent: 3329200 (1967-07-01), Craig
patent: 3702155 (1972-11-01), Getselev
patent: 3773101 (1973-11-01), Getselev
patent: 4004631 (1977-01-01), Goodrich et al.

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