EP0237400B1 - Verfahren zur Präparation von keramischen Kernen - Google Patents

Verfahren zur Präparation von keramischen Kernen Download PDF

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Publication number
EP0237400B1
EP0237400B1 EP87400415A EP87400415A EP0237400B1 EP 0237400 B1 EP0237400 B1 EP 0237400B1 EP 87400415 A EP87400415 A EP 87400415A EP 87400415 A EP87400415 A EP 87400415A EP 0237400 B1 EP0237400 B1 EP 0237400B1
Authority
EP
European Patent Office
Prior art keywords
core
wax
ceramic cores
mold
mould
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP87400415A
Other languages
English (en)
French (fr)
Other versions
EP0237400A1 (de
Inventor
Jacky Pierre Tabardin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Aircraft Engines SAS
Original Assignee
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Publication of EP0237400A1 publication Critical patent/EP0237400A1/de
Application granted granted Critical
Publication of EP0237400B1 publication Critical patent/EP0237400B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/18—Finishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns

Claims (3)

1. Verfahren zum Präparieren von keramischen Kernen für das Gießen von Präzisionsteilen nach Verfahren der verlorenen Wachsform, dadurch gekennzeichnet, daß vor einem Umhüllen des Kerns (11) mit dem Modellwachs ein Füllen der Hohlräume des Kerns (11) mit Wachs durchgeführt wird, währenddessen der Kern (11) von einer weichen Form (6) umschlossen ist und flüssiges Wachs mit Hilfe einer Einspritzpresse (7) mit angepaßter Leistung in die Form gespritzt wird.
2. Verfahren zum Präparieren von keramischen Kernen nach Anspruch 1, dadurch gekennzeichnet, daß die verwendete weiche Form (6) aus einem Silikonkautschuk besteht und durch Umgießen eines Musters des keramischen Kerns (10) gewonnen wird, dessen Gestalt mit derjenigen des herzustellenden Kerns (11) identisch ist.
3. Verfahren zum Präparieren von keramischen Kernen nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß der Einspritzdruck der Presse (10) zwischen 1 und 5 bar geregelt wird und daß auf die Form (6) ein Schließdruck ausgeübt wird, der in Abhängigkeit von dem Einspritzdruck festgelegt ist.
EP87400415A 1986-02-27 1987-02-25 Verfahren zur Präparation von keramischen Kernen Expired EP0237400B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8602700A FR2594727B1 (fr) 1986-02-27 1986-02-27 Procede de preparation de noyaux ceramiques
FR8602700 1986-02-27

Publications (2)

Publication Number Publication Date
EP0237400A1 EP0237400A1 (de) 1987-09-16
EP0237400B1 true EP0237400B1 (de) 1989-01-18

Family

ID=9332574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87400415A Expired EP0237400B1 (de) 1986-02-27 1987-02-25 Verfahren zur Präparation von keramischen Kernen

Country Status (7)

Country Link
US (1) US4732204A (de)
EP (1) EP0237400B1 (de)
JP (1) JPS62220244A (de)
DE (1) DE3760041D1 (de)
FR (1) FR2594727B1 (de)
IL (1) IL81696A (de)
IN (1) IN168394B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2823455A1 (fr) * 2001-04-17 2002-10-18 Howmet Res Corp Procede et dispositif pour former des elements positionneurs sur un noyau ceramique

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205261B (en) * 1987-06-03 1990-11-14 Rolls Royce Plc Method of manufacture and article manufactured thereby
JPH01118334A (ja) * 1987-10-31 1989-05-10 Morikawa Sangyo Kk 鋳造用消失性模型の接着方法及びそれに用いる装置
JPH02253912A (ja) * 1989-03-28 1990-10-12 Aisin Chem Co Ltd ドアチェック用レバーの製造方法
US5028239A (en) * 1989-05-12 1991-07-02 Nalco Chemical Company Fuel dewatering additives
US5524695A (en) * 1993-10-29 1996-06-11 Howmedica Inc. Cast bone ingrowth surface
US5773039A (en) * 1996-04-01 1998-06-30 Jones; Earl S. Apparatus for multiple wax castings
US6561428B2 (en) * 1997-10-17 2003-05-13 Hand Held Products, Inc. Imaging device having indicia-controlled image parsing mode
DE10310987B3 (de) * 2003-03-07 2004-04-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Werkzeugmaschine und Verfahren zur Herstellung von dreidimensionalen Bauteilen
US7296615B2 (en) * 2004-05-06 2007-11-20 General Electric Company Method and apparatus for determining the location of core-generated features in an investment casting
CA2567936C (en) 2006-11-14 2016-01-05 Atomic Energy Of Canada Limited Device and method for surface replication
EP1930096A1 (de) * 2006-12-07 2008-06-11 Siemens Aktiengesellschaft Verfahren zum Herstellen eines Modells für die feingusstechnische Darstellung einer wenigstens einen Hohlraum aufweisenden Komponente
US20110132564A1 (en) * 2009-12-08 2011-06-09 Merrill Gary B Investment casting utilizing flexible wax pattern tool
CN102802834B (zh) * 2010-12-07 2016-06-22 西门子能源有限公司 使用柔性蜡模工具的熔模铸造
US20130333855A1 (en) * 2010-12-07 2013-12-19 Gary B. Merrill Investment casting utilizing flexible wax pattern tool for supporting a ceramic core along its length during wax injection
WO2014175940A2 (en) * 2013-03-01 2014-10-30 United Technologies Corporation Gas turbine engine component manufacturing method and core for making same
US10189186B2 (en) * 2014-05-16 2019-01-29 Ford Global Technologies, Llc Method for finishing matching surfaces in forming tool components
CN107790644A (zh) * 2017-11-09 2018-03-13 东方电气集团东方汽轮机有限公司 一种防止空心叶片蜡模变形的方法
CN110340286B (zh) * 2019-07-16 2021-07-16 北京航空材料研究院有限公司 一种高表面光洁度钛合金熔模精密铸件的制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR789721A (fr) * 1935-05-08 1935-11-05 Indicateur de direction pour bicyclettes, motocyclettes et charrettes
GB789721A (en) * 1954-03-09 1958-01-29 Rolls Royce Improvements relating to casting processes for metals
DE1508663B1 (de) * 1966-02-02 1970-06-25 Howe Sound Company, New York, N y (V.St.A.) Verfahren und Vorrichtung zum Herstellen von Ausschmelzmodellen für das Präzisionsgießverfahren
GB2053047B (en) * 1979-07-07 1983-01-26 Rolls Royce Cores for lost wax casting
US4283835A (en) * 1980-04-02 1981-08-18 United Technologies Corporation Cambered core positioning for injection molding
GB2150874B (en) * 1983-12-07 1986-07-09 Rolls Royce Investment casting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2823455A1 (fr) * 2001-04-17 2002-10-18 Howmet Res Corp Procede et dispositif pour former des elements positionneurs sur un noyau ceramique

Also Published As

Publication number Publication date
FR2594727A1 (fr) 1987-08-28
IL81696A (en) 1990-02-09
FR2594727B1 (fr) 1988-05-06
US4732204A (en) 1988-03-22
IN168394B (de) 1991-03-23
EP0237400A1 (de) 1987-09-16
JPS62220244A (ja) 1987-09-28
DE3760041D1 (en) 1989-02-23
IL81696A0 (en) 1987-09-16
JPH0438498B2 (de) 1992-06-24

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