Document Type and Number:
Japanese Patent JPS541454
Kind Code:
Y2
Abstract:
A method of die casting, particularly of metals with high melting points including iron and steel, characterized by inserting in the cavity of each die a pasteboard form prefabricated in the shape of the respective cavity and containing a refractory substance, then closing the mold and casting the metal part in the usual manner. Where desired, localized tempering of the part being cast may be obtained by reducing the thickness of the prefabricated pasteboard form in that region, and conversely, soft regions may be provided by reinforcing the thickness of the forms in those locations.
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Application Number:
JP1639474U
Publication Date:
January 23, 1979
Filing Date:
February 12, 1974
Export Citation:
International Classes:
B22D15/00; B22C3/00; B22C9/06; B22C23/02; (IPC1-7): B22D15/00; B22C3/00