Metal founding – Process – Shaping a forming surface
Patent
1982-11-03
1985-11-05
Godici, Nicholas P.
Metal founding
Process
Shaping a forming surface
164138, 106 3827, B22C 104
Patent
active
045507619
ABSTRACT:
An improvement in the process for casting metal in sulphur-containing molds is disclosed. The mold is washed before casting with a compound, preferably barium dioxide. The compound reacts with gaseous sulphur compounds produced by the mold, thus lowering the diffusion of sulphur into the casting, and thereby minimizing graphite deterioration at and near the surface of the casting.
REFERENCES:
patent: 1454068 (1923-05-01), Moore et al.
patent: 1683630 (1928-09-01), Smith
patent: 3964916 (1976-06-01), Armistead et al.
Godici Nicholas P.
Seidel Richard K.
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