Global Patent Index - EP 0663249 A1

EP 0663249 A1 19950719 - Method for the production of ceramic shell moulds for casting with a lost mould.

Title (en)

Method for the production of ceramic shell moulds for casting with a lost mould.

Title (de)

Verfahren zur Herstellung keramischer Giessmasken zum Giessen mit verlorenem Modell.

Title (fr)

Procédé de fabrication d'un moule carapace en matériau céramique pour fonderie à modèle perdu.

Publication

EP 0663249 A1 19950719 (FR)

Application

EP 95400050 A 19950111

Priority

FR 9400242 A 19940112

Abstract (en)

A process is claimed for the fabrication of a ceramic shell mould for an investment casting foundry, consisting of: producing a model (1) in two parts (2,4) in a material that will be eliminated by fusion, sublimation or thermal degradation; assembling the two parts (2,4) of the model (1) by sticking them together to form a model (1) with an internal hollow or cavity (12); filling the internal cavity (12) with a ceramic material; simultaneous or subsequent prodn. of a shell mould in a ceramic material including the filled model which can be eliminated to leave a foundry mould with an internal core produced in situ.

IPC 1-7

B22C 7/02; B22C 9/04

IPC 8 full level

B22C 7/02 (2006.01); B22C 9/04 (2006.01)

CPC (source: EP US)

B22C 7/02 (2013.01 - EP US); B22C 9/04 (2013.01 - EP US)

Citation (search report)

  • [A] WO 8505583 A1 19851219 - COSWORTH RES & DEV LTD [GB]
  • [A] DE 3300968 A1 19840802 - SCHMIDT PFEIL BERND W
  • [A] GB 440296 A 19351224 - ERIK GUSTAF AKERLUND, et al
  • [A] DONALD R. DREGER: "FULL-MOLD CASTING GOES MASS PRODUCTION", MACHINE DESIGN VOL.54 (1982) NOV., NO.27, CLEVELAND, OHIO, USA, PAGE 47-51
  • [A] R. F. SMART: "Investment casting for the future", FOUNDRY TRADE JOURNAL 161(1987) 12 MARS, NO. 3344, REDHILL, SURREY, GR. BRITAIN, PAGE 184, 187, 189, 190
  • [A] PATENT ABSTRACTS OF JAPAN vol. 4, no. 105 (M - 23) 26 July 1980 (1980-07-26)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 17, no. 675 (M - 1526) 13 December 1993 (1993-12-13)
  • [A] RICHARD SOUTHGATE: "PRECISION CASTING SUPPLEMENT", FOUNDRY TRADE JOURNAL VOL.154 (1983) MAR., NO. 3258, BRIGHTON, GREAT BRITAIN. PAGE 315-318, 321, 322

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0663249 A1 19950719; EP 0663249 B1 19990310; DE 69508122 D1 19990415; DE 69508122 T2 19990826; FR 2714858 A1 19950713; FR 2714858 B1 19960209; US 5503218 A 19960402

DOCDB simple family (application)

EP 95400050 A 19950111; DE 69508122 T 19950111; FR 9400242 A 19940112; US 37186795 A 19950112