EP 0293961 B1 19910814 - CASTING METHOD AND APPARATUS THEREFOR
Title (en)
CASTING METHOD AND APPARATUS THEREFOR
Publication
Application
Priority
GB 8712743 A 19870530
Abstract (en)
[origin: EP0293961A1] A method and apparatus are described for the casting of components requiring equiaxed grain structure and low porosity and having widely different section thicknesses. The method comprises the steps of filling a mould (22) of the desired component with molten metal in a first chamber (11), withdrawing the filled mould (22) into a second chamber (34), isolating the second chamber (34) from the first chamber (11) with regard to pressure, pressurising the second chamber (34) with a fluid up to a maximum presssure of 7 MPa and oscillating the filled mould (22) whilst under pressure until at least partial solidification has occurred. Examples of apparatus are given inthe casting of turbine discs having integrally formed blades.
IPC 1-7
IPC 8 full level
B22D 27/08 (2006.01); B22D 27/13 (2006.01)
CPC (source: EP)
B22D 27/08 (2013.01); B22D 27/13 (2013.01)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0293961 A1 19881207; EP 0293961 B1 19910814; DE 3864194 D1 19910919; GB 2205262 A 19881207; GB 2205262 B 19910306; GB 8712743 D0 19870701; GB 8810632 D0 19880608
DOCDB simple family (application)
EP 88200895 A 19880506; DE 3864194 T 19880506; GB 8712743 A 19870530; GB 8810632 A 19880505