Mould assembly for casting metal articles

Details Mould assembly for casting metal articles Mould assembly for casting metal articles

1982-04-02

1985-05-14

Godici, Nicholas P.

Metal founding

Means to shape metallic material

Including means to assemble mold parts

164350, 164358, 164361, 164363, 249109, 249110, 249119, 249160, B22C 908, B22C 920

Patent

active

045166218

ABSTRACT:
In a mould assembly for multiple castings each mould is fed from a source of molten metal through a thin slit the width of which lies in the range 1.25 mm to 0.25 mm. The cast articles can be easily removed from the runner and riser system after casting without a machining operation so that the casting moulds can be packed closer together and more castings can be produced from each mould assembly. The thin slit also acts as a filter. A particular mould assembly seen in FIG. 2 is cylindrical and comprises a plurality of wedge-shaped mould segments 2 having mould cavities 4 in abutting faces. A central runner passage 6 is formed when the mould segments are assembled and the metal flows into the mould cavities through narrow slits 10 in one edge of each mould. After casting and removal of the mould the narrow flashing formed in the slits can be easily broken to remove the cast articles from the metal formed in the central runner passage.

REFERENCES:
patent: 539209 (1895-05-01), Adams
patent: 1653232 (1927-12-01), Smith
patent: 2806268 (1957-09-01), Bilter
patent: 3815661 (1974-06-01), Curran et al.
patent: 4072180 (1978-02-01), Hoult
patent: 4133371 (1979-01-01), Birch et al.

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