Method of preventing cracking in direct chill cast ingots

Details Method of preventing cracking in direct chill cast ingots Method of preventing cracking in direct chill cast ingots

2006-12-26

2006-12-26

Lin, Kuang Y. (Department: 1725)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S444000

Reexamination Certificate

active

07152662

ABSTRACT:
A method of casting a metal ingot having the steps of delivering molten metal to a direct chill mold, forming a solidified shell of metal, applying a coolant to a surface of the shell as it emerges from the mold, and withdrawing a solidified ingot from the mold. The coolant contains an oxidation inhibitor for increasing the rate of heat transfer from the solidifying metal compared to a coolant not containing the oxidation inhibitor to produce an ingot which is resistant to cracking.

REFERENCES:
patent: 4071072 (1978-01-01), McCubbin
patent: 5148853 (1992-09-01), Yu et al.
patent: 6066403 (2000-05-01), Sherwood et al.
patent: 6572789 (2003-06-01), Yang et al.

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