EP1266706A1 - Dispositif de coulage, procédé de fabrication d'un dispositif de coulage et son usage - Google Patents

Dispositif de coulage, procédé de fabrication d'un dispositif de coulage et son usage Download PDF

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Publication number
EP1266706A1
EP1266706A1 EP01114393A EP01114393A EP1266706A1 EP 1266706 A1 EP1266706 A1 EP 1266706A1 EP 01114393 A EP01114393 A EP 01114393A EP 01114393 A EP01114393 A EP 01114393A EP 1266706 A1 EP1266706 A1 EP 1266706A1
Authority
EP
European Patent Office
Prior art keywords
casting device
intermediate layer
casting
layer
front layer
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.)
Withdrawn
Application number
EP01114393A
Other languages
German (de)
English (en)
Inventor
Wolfgang Dr. Hermann
Frank Scheppe
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP01114393A priority Critical patent/EP1266706A1/fr
Priority to JP2002169519A priority patent/JP2003001367A/ja
Priority to CA002390246A priority patent/CA2390246A1/fr
Priority to US10/167,587 priority patent/US6920910B2/en
Publication of EP1266706A1 publication Critical patent/EP1266706A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
    • Y10T428/1314—Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]

Definitions

  • the invention relates to a casting device for casting a metallic component.
  • the invention also relates to a method and use of such a casting device.
  • a casting method and a casting device for manufacturing DE 198 21 770 C1 shows a metallic hollow body.
  • the casting device comprises an outer casting mold, at least has an inner core which forms the cavity of the hollow body is used.
  • the outer mold is in at least two outer parts are made divisible and the inner core is over at least one connecting element that the formation of a Passage opening in the wall into the cavity serves, connected to an outer part of the outer mold.
  • the Casting device shown is used for casting hollow gas turbine blades. Such gas turbine blades are thermal during operation very heavily loaded. Therefore, thermal often come here heavy-duty materials such as Superalloys, for use. However, such materials can be used in the production lead to difficulties in the casting process.
  • the object of the invention is to provide a casting device for casting a metallic component, with which in particular cracking is reduced.
  • Other objects of the invention are the corresponding details of manufacture and use a casting device.
  • the task of specifying a procedure is solved by a method of manufacturing a casting device according to one of the above statements, in which the Casting device is hardened by a burning process, wherein the firing temperature is below 1300 ° C.
  • Limiting the firing temperature ensures that the sandwich-like structure of the front layer and intermediate layer is sufficiently hardened, but at the same time the compliant property of the intermediate layer is not impaired becomes.
  • the casting core is preferably filled with a filling material and then hardened by a burning process, the Filling material burns during the burning process, causing the casting core is formed as a hollow core.
  • a filling material burns during the burning process, causing the casting core is formed as a hollow core.
  • polystyrene balls come considered as filler. This will the cast core stabilized. Stabilization can take place after hardening of the cast core in the burning process.
  • the task aimed at specifying a use is according to the invention solved by using a casting device according to one of the above explanations for casting a metallic Component made of an intermetallic nickel-aluminum alloy.
  • the component is preferably a gas turbine blade or a heat shield element.
  • FIG. 1 shows a casting device 1 in a longitudinal section.
  • the casting device 1 is for casting a heat shield element suitable. More detailed information on such heat shield elements follow later in connection with Figure 3.
  • the casting device 1 has a cavity 3 which is for receiving of liquid metal is provided.
  • the cavity 3 is from a wall 6 limited.
  • the wall 6 is sandwiched from several Layers built up: a front layer 7 borders on the Cavity 3.
  • the front layer 7 is surrounded by an intermediate layer 5.
  • the intermediate layer 5 is in turn connected an outer layer 9.
  • the wall 6 thus forms a molded shell 21 for casting a heat shield element. For later Receiving a retaining bolt penetrates the molded shell 21 a central, approximately cylindrical space 11 the cavity Third
  • a material is chosen as the front layer, which as a Front layer base material very fine corundum flour, corundum flour somewhat coarser type and corundum powder with a grain size up to 0.12 mm used.
  • This front layer base material is free of silicon dioxide Water-based mowilite added as a binder. There is no need for a wetting agent.
  • octanol is used as a defoamer.
  • the intermediate layer exposes itself an intermediate layer base made of fine corundum flour and Corundum powder with a grain size of up to 0.12 mm and a binder Silicon-free water-based mowiol. It Octanol is also used as a defoamer. Here too no wetting agent is used.
  • As a workpiece detachment lightening sanding material comes for the front layer Corundum with a grain size of up to 0.25 mm, for the intermediate layer up to 0.5 mm and for the outer layer up to 1 mm.
  • a casting device 1 is shown schematically, which enables the casting of a hollow component.
  • a conventional one Mold shell 21 is a cast core 23 mounted, the the structure described above from a front layer, one Has intermediate layer and an outer layer.
  • the outer layer in this case limits an internal cavity of the Cast core 23, which by burning out a polystyrene ball filling is created from polystyrene balls 25.
  • FIG. 3 shows schematically a gas turbine 51.
  • the gas turbine 51 has a compressor 53, a combustion chamber 55 and Turbine part 57.
  • the combustion chamber 55 has an inner one Combustion chamber liner 56 on.
  • the combustor liner 56 is formed from heat shield elements 33 as enlarged are also shown.
  • gas turbine blades 31 arranged in the turbine part 57 .
  • Such a gas turbine blade 31 is shown in more detail in FIG. 4. It has an airfoil 35, which has a cavity 37 for internal cooling encloses. An attachment area borders on the airfoil 35 39 on. Both the gas turbine blade 31 and the heat shield element 33 are also subjected to very high thermal loads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Mold Materials And Core Materials (AREA)
EP01114393A 2001-06-13 2001-06-13 Dispositif de coulage, procédé de fabrication d'un dispositif de coulage et son usage Withdrawn EP1266706A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP01114393A EP1266706A1 (fr) 2001-06-13 2001-06-13 Dispositif de coulage, procédé de fabrication d'un dispositif de coulage et son usage
JP2002169519A JP2003001367A (ja) 2001-06-13 2002-06-11 鋳造装置とその製造方法及び使用方法
CA002390246A CA2390246A1 (fr) 2001-06-13 2002-06-11 Dispositif de coulage, procede de fabrication, et utilisation
US10/167,587 US6920910B2 (en) 2001-06-13 2002-06-13 Casting device, process for producing a casting device and method of using the casting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01114393A EP1266706A1 (fr) 2001-06-13 2001-06-13 Dispositif de coulage, procédé de fabrication d'un dispositif de coulage et son usage

Publications (1)

Publication Number Publication Date
EP1266706A1 true EP1266706A1 (fr) 2002-12-18

Family

ID=8177719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01114393A Withdrawn EP1266706A1 (fr) 2001-06-13 2001-06-13 Dispositif de coulage, procédé de fabrication d'un dispositif de coulage et son usage

Country Status (4)

Country Link
US (1) US6920910B2 (fr)
EP (1) EP1266706A1 (fr)
JP (1) JP2003001367A (fr)
CA (1) CA2390246A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2463043A1 (fr) 2010-12-08 2012-06-13 Siemens Aktiengesellschaft Pièce de formage coulée en céramique dotée de différents facteurs de rétrécissement et procédé de coulée
WO2017121972A1 (fr) * 2016-01-15 2017-07-20 Safran Noyau réfractaire comprenant un corps principal et une coque

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004031254A1 (fr) * 2002-10-04 2004-04-15 E-Tec Co., Ltd. Liant durcissant a temperature ambiante et processus de production de moulage avec ce liant
CN101918160B (zh) * 2008-01-22 2012-11-28 旭硝子陶瓷株式会社 铸型用骨料粒子
CN106424577A (zh) * 2016-08-16 2017-02-22 浙江省机电设计研究院有限公司 一种铸钢件铁型覆砂铸造生产中防止热裂的砂芯装置和方法
US20180238173A1 (en) * 2017-02-22 2018-08-23 General Electric Company Method of manufacturing turbine airfoil and tip component thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344090A (en) * 1970-12-10 1974-01-16 Sakabe Industry Co Ltd Moulds for casting purposes
CH645283A5 (en) * 1979-12-11 1984-09-28 Kovacs Janos Process for producing a casting, use of the process for producing containers or gratings and grating according to this use
EP0370751A2 (fr) * 1988-11-21 1990-05-30 ROLLS-ROYCE plc Moules carapaces pour la coulée de métaux
JP2001071114A (ja) * 1999-08-31 2001-03-21 Asahi Tec Corp 鋳型用注湯スリーブ

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3206810A (en) * 1963-07-22 1965-09-21 Cons Foundries & Mfg Corp Monolithic investment shell casting
US3537949A (en) * 1966-10-24 1970-11-03 Rem Metals Corp Investment shell molds for the high integrity precision casting of reactive and refractory metals,and methods for their manufacture
US3862660A (en) * 1970-12-10 1975-01-28 Sakabe Industry Co Ltd Durable mold of multilayer construction
JPS5413852B2 (fr) * 1972-01-17 1979-06-02
US3903950A (en) * 1973-12-26 1975-09-09 Howmet Corp Sandwich structure mold
US4093017A (en) * 1975-12-29 1978-06-06 Sherwood Refractories, Inc. Cores for investment casting process
US4223716A (en) * 1978-12-04 1980-09-23 Caterpillar Tractor Co. Method of making and using a ceramic shell mold
US5006504A (en) * 1989-08-28 1991-04-09 At&T Bell Laboratories Preparing superconducting ceramic materials
US5335717A (en) * 1992-01-30 1994-08-09 Howmet Corporation Oxidation resistant superalloy castings
DE19602525A1 (de) * 1996-01-25 1997-08-07 Starck H C Gmbh Co Kg Sphärische Keramikformkörper, Verfahren zu ihrer Herstellung sowie deren Verwendung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344090A (en) * 1970-12-10 1974-01-16 Sakabe Industry Co Ltd Moulds for casting purposes
CH645283A5 (en) * 1979-12-11 1984-09-28 Kovacs Janos Process for producing a casting, use of the process for producing containers or gratings and grating according to this use
EP0370751A2 (fr) * 1988-11-21 1990-05-30 ROLLS-ROYCE plc Moules carapaces pour la coulée de métaux
JP2001071114A (ja) * 1999-08-31 2001-03-21 Asahi Tec Corp 鋳型用注湯スリーブ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 20 10 July 2001 (2001-07-10) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2463043A1 (fr) 2010-12-08 2012-06-13 Siemens Aktiengesellschaft Pièce de formage coulée en céramique dotée de différents facteurs de rétrécissement et procédé de coulée
WO2012076253A1 (fr) 2010-12-08 2012-06-14 Siemens Aktiengesellschaft Pièce coulée céramique présentant des facteurs de retrait différents et procédé de coulée
WO2017121972A1 (fr) * 2016-01-15 2017-07-20 Safran Noyau réfractaire comprenant un corps principal et une coque
FR3046736A1 (fr) * 2016-01-15 2017-07-21 Safran Noyau refractaire comprenant un corps principal et une coque
CN108472715A (zh) * 2016-01-15 2018-08-31 赛峰集团 包含主体和壳体的耐火芯
RU2721260C2 (ru) * 2016-01-15 2020-05-18 Сафран Огнеупорный сердечник, содержащий основной корпус и кожух
US10654098B2 (en) 2016-01-15 2020-05-19 Safran Refractory core comprising a main body and a shell

Also Published As

Publication number Publication date
US6920910B2 (en) 2005-07-26
US20030012895A1 (en) 2003-01-16
JP2003001367A (ja) 2003-01-07
CA2390246A1 (fr) 2002-12-13

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