Process for producing core for casting

Details Process for producing core for casting Process for producing core for casting

1983-08-04

1986-08-12

Godici, Nicholas P.

Metal founding

Process

Shaping a forming surface

164520, 164529, 106 383, 106 3835, 106 389, B22C 102, B22C 900

Patent

active

046050574

ABSTRACT:
A mold for casting particularly a core, is produced by mixing refractory particles with colloidal alumina to give a slurry, filling said slurry in a pattern having water absorption properties, solidifying the slurry, followed by drying and firing. The resulting mold, particularly core, has high dimensional accuracy with no cracks.

REFERENCES:
patent: 3222737 (1965-07-01), Reuter
patent: 3692086 (1972-09-01), Michelon
patent: 3776992 (1973-12-01), Miki
patent: 3857712 (1974-12-01), Chevriot et al.
patent: 4043377 (1977-08-01), Mazdiyasni
patent: 4117055 (1978-09-01), Alexanderson
patent: 4196769 (1980-04-01), Feagin

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