Document Type and Number:
Japanese Patent JPS6243777
Kind Code:
B2
Abstract:
An improved mold for casting single crystal metallic articles is disclosed and comprises a ceramic investment mold having a main article cavity and having embedded at its lower end below the article cavity and in communication therewith a preformed ceramic single crystal starter insert. The preformed starter insert generates a plurality of single metallic crystals in a growth cavity and then selects one crystal for further propagation through the article cavity. A method for making such a mold is also disclosed.
Inventors:
DAGURASU RATSUSERU HEIZU
Application Number:
JP9354978A
Publication Date:
September 16, 1987
Filing Date:
July 31, 1978
Export Citation:
Assignee:
YUNAITETSUDO TEKUNOROJIIZU CORP
International Classes:
B22C9/02; B22C7/02; B22C9/04; B22C9/24; B22C13/08; B22D15/00; B22D27/04
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