MANUFACTURING METHOD OF CASTINGS IN GAS-PERMEABLE MOULDS UNDER PRESSURE Russian patent published in 2009 - IPC B22D18/02

Abstract RU 2355509 C2

FIELD: metallurgy.

SUBSTANCE: invention relates to foundry field. Method includes filling of molds by metal melt and its hardening in forms under action of gas pressure P_gas on casting metal. On casting metal simultaneously with action of gas pressure it is implemented mechanical force effect P_mech by means of compression by piston of metal melt in compression box. Mechanical effect is implemented on the assumption of P_mech ≤ P_gas.

EFFECT: it is achieved increasing of mechanical properties of received castings.

1 dwg

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RU 2 355 509 C2

Authors

Karanik Jurij Appolinar'Evich

Dates

2009-05-20—Published

2007-04-23—Filed