Piston for cold chamber

Details Piston for cold chamber Piston for cold chamber

1987-05-18

1989-12-12

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164312, B22D 1710, B22D 1720

Patent

active

048861073

ABSTRACT:
An improved shot tip for a metal injecting shot sleeve wherein the rear end of the shot tip is of a reduced diameter as compared to the front end of the shot tip so as to minimize drag as the shot tip moves through the shot sleeve, and a wear resistant ring is positioned in an external groove in the enlarged diameter front end portion of the shot tip to minimize wear and preclude blowby of molten metal at the reduced length interface between the shot tip and the shot sleeve.

REFERENCES:
patent: 2932865 (1960-04-01), Bauer
patent: 3300822 (1967-01-01), Thompson
patent: 3613768 (1971-10-01), Awano et al.
patent: 3901306 (1975-08-01), Miki et al.
patent: 4334575 (1982-06-01), Miki et al.
patent: 4667729 (1987-05-01), Zecman

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