METHOD FOR PRODUCING SALT CORE FOR CASTING AND SALT CORE FOR CASTING

Title:

METHOD FOR PRODUCING SALT CORE FOR CASTING AND SALT CORE FOR CASTING

Document Type and Number:

WIPO Patent Application WO/2007/135995

Kind Code:

A1

Abstract:

When a salt core (2) is formed by die casting, a melt is obtained first by heating and melting a mixed salt containing at least a potassium salt and a sodium salt. Then, the temperature of the melt is decreased to have the melt in a semi-solidified (solid-liquid coexisting) state. The semi-solidified melt is cast into a mold for salt core under high pressure and solidified therein, and the thus-formed salt core is taken out of the mold after solidification.

Inventors:

YAOKAWA JUN (JP)
ANZAI KOICHI (JP)
YAMADA YOUJI (JP)

Application Number:

PCT/JP2007/060239

Publication Date:

November 29, 2007

Filing Date:

May 18, 2007

Export Citation:

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Assignee:

UNIV TOHOKU NAT UNIV CORP (JP)
YAMAHA MOTOR CO LTD (JP)
YAOKAWA JUN (JP)
ANZAI KOICHI (JP)
YAMADA YOUJI (JP)

International Classes:

B22C9/10; B22C1/00; B22C9/24; B22D29/00

Foreign References:

JPS5314618A	1978-02-09
JPS4839696B1	1973-11-26
JPS5210803B1	1977-03-26
JPS4839696A	1973-06-11
JPS50136225A	1975-10-29
JPS5210803A	1977-01-27
US3963818A	1976-06-15

Other References: