METHOD FOR MANUFACTURING COMBINED INVESTMENT PATTERN Russian patent published in 1998 - IPC

Abstract RU 2116862 C1

FIELD: foundry. SUBSTANCE: installed into hollow of mold prior to pressing-in of pattern composition is preliminarily prepared expanded polystyrene intermediate insert, then mold is heated. Model composition is pressed in, cooled and pattern is withdrawn. EFFECT: excluded warping of combined investment pattern. 1 dwg, 2 tbl

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RU 2 116 862 C1

Authors

Evstigneev A.I.

Chernomas V.V.

Dates

1998-08-10—Published

1996-01-29—Filed