Method for casting a hollow camshaft for internal combustion eng

Details Method for casting a hollow camshaft for internal combustion eng Method for casting a hollow camshaft for internal combustion eng

1993-12-29

1996-01-02

Batten, Jr., J. Reed

Metal founding

Process

Shaping a forming surface

164 28, 164 30, 164132, 164137, B22C 910, B22C 924, B22D 2500

Patent

active

054799813

ABSTRACT:
A core forming mold having at least three regions is provided and a molding sand is supplied into the core forming mold. The molding sand is hardened by an amine gas, to obtain a molding core having at least one region which has a diameter smaller than that of other regions. An iron casting mold is provided having a molding cavity therein, such that the molding core is positioned within the molding cavity of the iron casting mold. A molten iron is cast within the iron casting mold to entirely enclose the molding core.

REFERENCES:
patent: 4832107 (1989-05-01), Hass et al.

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