Self-aligning sand mold insert assembly

Details Self-aligning sand mold insert assembly Self-aligning sand mold insert assembly

1996-02-05

1998-01-06

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164354, 164355, B22D 1504

Patent

active

057044120

ABSTRACT:
A retractable metal insert assembly for a core sand mold having at least one sand core element provided with walls to define an opening communicating with a molding cavity, the walls presenting a stepped neck which is dimensionally accurate within .+-.0.002 inches, the mold further including a metal support associated with the core element. The insert assembly comprises: (a) a metal guide detachably secured to the metal support; (b) a metal chill element extendible through the opening to present a metal molding surface which insert has walls mateable with the stepped neck for accurate alignment; and (c) biasing means acting between the guide and insert to urge the mating walls together for self positioning of the insert. The insert assembly can be repeatedly reused in a method of making castings.

REFERENCES:
patent: 843679 (1907-02-01), Johns
patent: 1093443 (1914-04-01), Lester
patent: 2420003 (1947-05-01), Miller
patent: 2431879 (1947-12-01), Mebs
patent: 3045301 (1962-07-01), Webbere
patent: 3076240 (1963-02-01), Schlein
patent: 3370643 (1968-02-01), Lorenz

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