JP6144925B2 - チタン及びチタンアルミナイド合金鋳造用の鋳型及び鋳型の製造方法 - Google Patents
チタン及びチタンアルミナイド合金鋳造用の鋳型及び鋳型の製造方法 Download PDFInfo
- Publication number
- JP6144925B2 JP6144925B2 JP2013031615A JP2013031615A JP6144925B2 JP 6144925 B2 JP6144925 B2 JP 6144925B2 JP 2013031615 A JP2013031615 A JP 2013031615A JP 2013031615 A JP2013031615 A JP 2013031615A JP 6144925 B2 JP6144925 B2 JP 6144925B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- calcium
- casting
- facecoat
- bulk
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
-
- 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
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/022—Casting heavy metals, with exceedingly high melting points, i.e. more than 1600 degrees C, e.g. W 3380 degrees C, Ta 3000 degrees C, Mo 2620 degrees C, Zr 1860 degrees C, Cr 1765 degrees C, V 1715 degrees C
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/407,917 US8932518B2 (en) | 2012-02-29 | 2012-02-29 | Mold and facecoat compositions |
| US13/407,917 | 2012-02-29 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013180344A JP2013180344A (ja) | 2013-09-12 |
| JP2013180344A5 JP2013180344A5 (enExample) | 2016-04-07 |
| JP6144925B2 true JP6144925B2 (ja) | 2017-06-07 |
Family
ID=47757467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013031615A Active JP6144925B2 (ja) | 2012-02-29 | 2013-02-21 | チタン及びチタンアルミナイド合金鋳造用の鋳型及び鋳型の製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (4) | US8932518B2 (enExample) |
| EP (1) | EP2659994B1 (enExample) |
| JP (1) | JP6144925B2 (enExample) |
| CN (1) | CN103286256B (enExample) |
| BR (1) | BR102013004515A2 (enExample) |
| CA (1) | CA2806844C (enExample) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101990939B1 (ko) * | 2011-02-28 | 2019-06-19 | 가부시끼가이샤 다나자와 핫꼬오샤 | 성형용 금형 및 그 제조 방법, 및 광택도를 합치시키는 방법 |
| US8579013B2 (en) | 2011-09-30 | 2013-11-12 | General Electric Company | Casting mold composition with improved detectability for inclusions and method of casting |
| US8858697B2 (en) | 2011-10-28 | 2014-10-14 | General Electric Company | Mold compositions |
| US9011205B2 (en) | 2012-02-15 | 2015-04-21 | General Electric Company | Titanium aluminide article with improved surface finish |
| US8932518B2 (en) * | 2012-02-29 | 2015-01-13 | General Electric Company | Mold and facecoat compositions |
| US8906292B2 (en) * | 2012-07-27 | 2014-12-09 | General Electric Company | Crucible and facecoat compositions |
| US8708033B2 (en) | 2012-08-29 | 2014-04-29 | General Electric Company | Calcium titanate containing mold compositions and methods for casting titanium and titanium aluminide alloys |
| US8992824B2 (en) | 2012-12-04 | 2015-03-31 | General Electric Company | Crucible and extrinsic facecoat compositions |
| US9592548B2 (en) * | 2013-01-29 | 2017-03-14 | General Electric Company | Calcium hexaluminate-containing mold and facecoat compositions and methods for casting titanium and titanium aluminide alloys |
| US9061350B2 (en) * | 2013-09-18 | 2015-06-23 | General Electric Company | Ceramic core compositions, methods for making cores, methods for casting hollow titanium-containing articles, and hollow titanium-containing articles |
| US20150078912A1 (en) * | 2013-09-18 | 2015-03-19 | General Electric Company | Ceramic core compositions, methods for making cores, methods for casting hollow titanium-containing articles, and hollow titanium-containing articles |
| US9511417B2 (en) | 2013-11-26 | 2016-12-06 | General Electric Company | Silicon carbide-containing mold and facecoat compositions and methods for casting titanium and titanium aluminide alloys |
| US9192983B2 (en) * | 2013-11-26 | 2015-11-24 | General Electric Company | Silicon carbide-containing mold and facecoat compositions and methods for casting titanium and titanium aluminide alloys |
| US20150254740A1 (en) * | 2014-03-06 | 2015-09-10 | International Business Machines Corporation | Non-Intrusive Cloud Services Billing |
| JP6299859B2 (ja) * | 2014-03-28 | 2018-03-28 | 株式会社Ihi | 鋳型及びその製造方法、並びにTiAl合金鋳造品の鋳造方法 |
| US10391547B2 (en) * | 2014-06-04 | 2019-08-27 | General Electric Company | Casting mold of grading with silicon carbide |
| US20170087626A1 (en) * | 2015-09-30 | 2017-03-30 | Crucible Intellectual Property, Llc | Investment-diecasting mold |
| CN106250636B (zh) * | 2016-08-02 | 2019-04-19 | 浙江大学 | 一种考虑应力水平的水泥基材料疲劳失效模型和疲劳应变概率模型的建立方法 |
| MX2019004103A (es) * | 2016-10-10 | 2019-07-15 | 3M Innovative Properties Co | Metodo para fabricar molde de fundicion de inversion. |
| CN106493287B (zh) * | 2016-11-28 | 2019-02-01 | 上海航天精密机械研究所 | 铸造用氧化钇型壳的制备方法 |
| US20180328371A1 (en) * | 2017-05-09 | 2018-11-15 | Borgwarner Inc. | Backplate and method of making and using the same |
| CN111542236B (zh) | 2018-01-15 | 2023-10-03 | 菲利普莫里斯生产公司 | 具有用于增强气溶胶特性的冷却的水烟装置 |
| US11648706B2 (en) | 2018-04-26 | 2023-05-16 | San Diego State University Research Foundation | Selective sinter-based fabrication of fully dense complexing shaped parts |
| US10780498B2 (en) | 2018-08-22 | 2020-09-22 | General Electric Company | Porous tools and methods of making the same |
| PL4003680T3 (pl) * | 2019-07-22 | 2026-01-05 | Foundry Lab Limited | Forma odlewnicza oraz sposób odlewania |
| DE102022101981B3 (de) * | 2022-01-28 | 2022-11-03 | Denk Keramische Werkstätten e.K. | Niederdruck-Dampfgarer |
| CN115255267A (zh) * | 2022-08-12 | 2022-11-01 | 安徽沃尔曼新材料科技有限公司 | 一种模壳的制备方法 |
Family Cites Families (225)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2048319A (en) | 1933-02-25 | 1936-07-21 | Carborundum Co | Method of producing cast refractory and similar articles |
| GB569852A (en) | 1943-03-24 | 1945-06-12 | Ernest George Whitehead | Improvements in melting pots |
| GB783411A (en) | 1952-05-23 | 1957-09-25 | Birmingham Small Arms Co Ltd | Improvements in or relating to containers for molten metal |
| US2781261A (en) | 1953-10-30 | 1957-02-12 | Nat Distillers Prod Corp | Process for the manufacture of titanium-aluminum alloys and regeneration of intermediates |
| US2912341A (en) | 1954-12-21 | 1959-11-10 | Aluminum Co Of America | Castable refractory |
| US2837426A (en) | 1955-01-31 | 1958-06-03 | Nat Distillers Chem Corp | Cyclic process for the manufacture of titanium-aluminum alloys and regeneration of intermediates thereof |
| US2911311A (en) | 1955-08-08 | 1959-11-03 | Howe Sound Co | Calcium aluminate binder |
| US3084060A (en) | 1960-04-25 | 1963-04-02 | Nat Res Corp | Process of coating a refractory body with boron nitride and then reacting with aluminum |
| US3180632A (en) | 1961-10-02 | 1965-04-27 | North American Aviation Inc | Coated crucible and crucible and mold coating method |
| US3188231A (en) | 1963-07-09 | 1965-06-08 | Zbigniew D Jastrzebski | Process of making crucibles |
| US3286312A (en) | 1965-03-29 | 1966-11-22 | Little Inc A | Refractory coated casting mold |
| US3565643A (en) | 1969-03-03 | 1971-02-23 | Du Pont | Alumina - metalline compositions bonded with aluminide and titanide intermetallics |
| US3676161A (en) | 1969-03-03 | 1972-07-11 | Du Pont | Refractories bonded with aluminides,nickelides,or titanides |
| US3660075A (en) | 1969-10-16 | 1972-05-02 | Atomic Energy Commission | CRUCIBLE COATING FOR PREPARATION OF U AND P ALLOYS CONTAINING Zr OR Hf |
| DE2021532C3 (de) | 1970-05-02 | 1974-02-21 | Metallgesellschaft Ag, 6000 Frankfurt | Werkstoff zur Herstellung von saugfähigen Arbeitsformen für keramische Erzeugnisse |
| NO140023C (no) | 1971-03-16 | 1979-06-20 | Alsacienne Atom | Anordning for konduksjonspumpe for flytende metaller |
| US4148204A (en) | 1971-05-07 | 1979-04-10 | Siemens Aktiengesellschaft | Process of mechanically shaping metal articles |
| US3969195A (en) | 1971-05-07 | 1976-07-13 | Siemens Aktiengesellschaft | Methods of coating and surface finishing articles made of metals and their alloys |
| US3743003A (en) * | 1971-06-03 | 1973-07-03 | Rem Metals Corp | Making investment shell molds inhibited against reaction with molten reactive and refractory casting metals |
| US3751788A (en) | 1971-08-20 | 1973-08-14 | Imp Metal Ind Kynoch Ltd | Method of manufacturing a refractory lined continuous casting die |
| US3734480A (en) | 1972-02-08 | 1973-05-22 | Us Navy | Lamellar crucible for induction melting titanium |
| LU67355A1 (enExample) | 1973-04-04 | 1974-11-21 | ||
| GB1517392A (en) | 1974-08-30 | 1978-07-12 | Onoda Cement Co Ltd | Moulding sand mixture |
| US3955616A (en) * | 1975-06-11 | 1976-05-11 | General Electric Company | Ceramic molds having a metal oxide barrier for casting and directional solidification of superalloys |
| US4040845A (en) | 1976-03-04 | 1977-08-09 | The Garrett Corporation | Ceramic composition and crucibles and molds formed therefrom |
| US4028096A (en) | 1976-05-13 | 1977-06-07 | The United States Of America As Represented By The United States Energy Research And Development Administration | Method of melting metals to reduce contamination from crucibles |
| DE2807982C2 (de) * | 1978-02-24 | 1983-10-13 | Gebr. Happich Gmbh, 5600 Wuppertal | Sonnenblende für Fahrzeuge |
| JPS54157780A (en) | 1978-06-02 | 1979-12-12 | Toshiba Corp | Production of silicon single crystal |
| US4356152A (en) | 1981-03-13 | 1982-10-26 | Rca Corporation | Silicon melting crucible |
| EP0096985A1 (en) | 1982-06-28 | 1983-12-28 | Trw Inc. | Crucible liner and method of making and using the same |
| JPS6012247A (ja) * | 1983-07-01 | 1985-01-22 | Agency Of Ind Science & Technol | 超合金の一方向性凝固鋳造用インベストメントシエル鋳型 |
| JPS6141740A (ja) | 1984-08-02 | 1986-02-28 | Natl Res Inst For Metals | 金属間化合物TiAl基耐熱合金 |
| US4738389A (en) | 1984-10-19 | 1988-04-19 | Martin Marietta Corporation | Welding using metal-ceramic composites |
| US4751048A (en) | 1984-10-19 | 1988-06-14 | Martin Marietta Corporation | Process for forming metal-second phase composites and product thereof |
| US4836982A (en) | 1984-10-19 | 1989-06-06 | Martin Marietta Corporation | Rapid solidification of metal-second phase composites |
| JPS61129568A (ja) | 1984-11-28 | 1986-06-17 | Horiba Ltd | るつぼ空焼き装置 |
| BR8606628A (pt) | 1985-04-26 | 1987-08-04 | Martin Marietta Corp | Composito de matriz de metal isotropico |
| DE3683086D1 (de) | 1985-06-06 | 1992-02-06 | Remet Corp | Giessen von reaktionsfaehigen metallen in keramische formen. |
| JPH069290B2 (ja) | 1985-06-25 | 1994-02-02 | 電気化学工業株式会社 | プリント回路用の金属基板 |
| US4793971A (en) | 1985-12-24 | 1988-12-27 | Aluminum Company Of America | Grain refining |
| US4808372A (en) | 1986-01-23 | 1989-02-28 | Drexel University | In situ process for producing a composite containing refractory material |
| US4723764A (en) | 1986-02-28 | 1988-02-09 | Gte Products Corporation | Crucible for melting reactive metal alloys |
| US4703806A (en) | 1986-07-11 | 1987-11-03 | Howmet Turbine Components Corporation | Ceramic shell mold facecoat and core coating systems for investment casting of reactive metals |
| JPH0240409B2 (ja) | 1986-09-09 | 1990-09-11 | Morita Mfg | Chukatazai |
| US5535811A (en) | 1987-01-28 | 1996-07-16 | Remet Corporation | Ceramic shell compositions for casting of reactive metals |
| US4746374A (en) | 1987-02-12 | 1988-05-24 | The United States Of America As Represented By The Secretary Of The Air Force | Method of producing titanium aluminide metal matrix composite articles |
| US4802436A (en) | 1987-07-21 | 1989-02-07 | Williams Gold Refining Company | Continuous casting furnace and die system of modular design |
| US4892693A (en) | 1987-07-24 | 1990-01-09 | Aluminum Company Of America | Method of making filament growth composite |
| JPH01139988A (ja) | 1987-11-26 | 1989-06-01 | Toshiba Corp | 金属溶解用るつぼ |
| JPH01184392A (ja) | 1988-01-18 | 1989-07-24 | Hitachi Ltd | 金属溶融用るつぼ |
| US4996175A (en) | 1988-01-25 | 1991-02-26 | Precision Castparts Corp. | Refractory composition and method for metal casting |
| JPH01262041A (ja) | 1988-04-13 | 1989-10-18 | Toyama Pref Gov | 鋳型及び中子の製造方法 |
| WO1989010982A1 (en) | 1988-05-05 | 1989-11-16 | Martin Marietta Corporation | Arc-melting process for forming metallic-second phase composites and product thereof |
| US4966225A (en) | 1988-06-13 | 1990-10-30 | Howmet Corporation | Ceramic shell mold for investment casting and method of making the same |
| US4951929A (en) | 1989-04-06 | 1990-08-28 | Didier-Taylor Refractories Corporation | Refractory assembly including inner and outer refractory members with interference shrink fit therebetween and method of formation thereof |
| US4919886A (en) | 1989-04-10 | 1990-04-24 | The United States Of America As Represented By The Secretary Of The Air Force | Titanium alloys of the Ti3 Al type |
| US5427173A (en) | 1989-05-01 | 1995-06-27 | Alliedsignal Inc. | Induction skull melt spinning of reactive metal alloys |
| EP0471798B1 (en) | 1989-05-01 | 1993-06-23 | AlliedSignal Inc. | Induction skull melt spinning of reactive metal alloys |
| US4893743A (en) | 1989-05-09 | 1990-01-16 | The United States Of America As Represented By The Secretary Of The Air Force | Method to produce superplastically formed titanium aluminide components |
| GB8911666D0 (en) | 1989-05-20 | 1989-07-05 | Rolls Royce Plc | Ceramic mould material |
| US5602197A (en) | 1989-05-30 | 1997-02-11 | Corning Incorporated | Reversible polymer gel binders for powder forming |
| US5429778A (en) | 1989-07-07 | 1995-07-04 | Alliedsignal Inc. | Process for preparation of metal carbide fibers |
| US5011554A (en) | 1989-12-26 | 1991-04-30 | General Electric Company | Ruthenium aluminum intermetallic compounds |
| JPH03282187A (ja) | 1990-03-30 | 1991-12-12 | Mitsubishi Materials Corp | ルツボとその製造方法 |
| FR2660237B1 (fr) | 1990-04-02 | 1992-09-04 | Savoie Refractaires | Composition de beton pour moules, moule et procede de fabrication d'un moule. |
| US5098653A (en) | 1990-07-02 | 1992-03-24 | General Electric Company | Tantalum and chromium containing titanium aluminide rendered castable by boron inoculation |
| EP0464366B1 (de) | 1990-07-04 | 1994-11-30 | Asea Brown Boveri Ag | Verfahren zur Herstellung eines Werkstücks aus einer dotierstoffhaltigen Legierung auf der Basis Titanaluminid |
| DE69131791T2 (de) | 1990-07-31 | 2000-06-15 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Titanaluminiden und daraus hergestellte Präzisionsgussteile |
| JPH0499840A (ja) | 1990-08-13 | 1992-03-31 | Ishikawajima Harima Heavy Ind Co Ltd | 精密鋳造用チタンアルミナイド基合金及びその精密鋳造法 |
| FR2666819B1 (fr) | 1990-09-19 | 1994-09-23 | Inst Aluminievoi Magnievoi | Procede et dispositif pour fabriquer un materiau composite a partir d'un metal de base. |
| RU2020042C1 (ru) | 1990-09-19 | 1994-09-30 | Акционерное общество открытого типа "Всероссийский алюминиево-магниевый институт" | Способ получения отливок из композиционного материала на металлической основе |
| US5284620A (en) | 1990-12-11 | 1994-02-08 | Howmet Corporation | Investment casting a titanium aluminide article having net or near-net shape |
| JPH0543958A (ja) | 1991-01-17 | 1993-02-23 | Sumitomo Light Metal Ind Ltd | 耐酸化性チタニウムアルミナイドの製造方法 |
| US5098484A (en) | 1991-01-30 | 1992-03-24 | The United States Of America As Represented By The Secretary Of The Air Force | Method for producing very fine microstructures in titanium aluminide alloy powder compacts |
| US5152853A (en) | 1991-02-25 | 1992-10-06 | General Electric Company | Ruthenium aluminum intermetallic compounds with scandium and boron |
| US5678298A (en) | 1991-03-21 | 1997-10-21 | Howmet Corporation | Method of making composite castings using reinforcement insert cladding |
| CA2057373A1 (en) | 1991-05-06 | 1992-11-07 | Donald E. Larsen, Jr. | Tia1 intermetallic articles and method of making same |
| US5354351A (en) | 1991-06-18 | 1994-10-11 | Howmet Corporation | Cr-bearing gamma titanium aluminides and method of making same |
| US5102450A (en) | 1991-08-01 | 1992-04-07 | General Electric Company | Method for melting titanium aluminide alloys in ceramic crucible |
| EP0529594A1 (en) | 1991-08-29 | 1993-03-03 | Ucar Carbon Technology Corporation | A glassy carbon coated graphite component for use in the production of silicon crystal growth |
| EP0530968A1 (en) | 1991-08-29 | 1993-03-10 | General Electric Company | Method for directional solidification casting of a titanium aluminide |
| US5263530A (en) | 1991-09-11 | 1993-11-23 | Howmet Corporation | Method of making a composite casting |
| US5273104A (en) | 1991-09-20 | 1993-12-28 | United Technologies Corporation | Process for making cores used in investment casting |
| US5205984A (en) | 1991-10-21 | 1993-04-27 | General Electric Company | Orthorhombic titanium niobium aluminide with vanadium |
| CN1060683A (zh) | 1991-11-07 | 1992-04-29 | 冶金工业部包头稀土研究院 | 制备金属钐用反应容器及其制造方法 |
| JP3379111B2 (ja) | 1992-02-19 | 2003-02-17 | 石川島播磨重工業株式会社 | 精密鋳造用チタンアルミナイド |
| US5269845A (en) | 1992-02-27 | 1993-12-14 | Cer-Con, Inc. | Calcium aluminate composition and process for making same |
| US5503798A (en) | 1992-05-08 | 1996-04-02 | Abb Patent Gmbh | High-temperature creep-resistant material |
| JPH069290A (ja) | 1992-06-26 | 1994-01-18 | Hitachi Cable Ltd | 化合物半導体単結晶の成長方法 |
| JPH0612247A (ja) * | 1992-06-26 | 1994-01-21 | Toshiba Corp | 用語情報表示装置 |
| US5297615A (en) | 1992-07-17 | 1994-03-29 | Howmet Corporation | Complaint investment casting mold and method |
| JPH06179930A (ja) | 1992-08-25 | 1994-06-28 | Tatsuta Electric Wire & Cable Co Ltd | 黒鉛製るつぼ又は鋳型 |
| US5287910A (en) | 1992-09-11 | 1994-02-22 | Howmet Corporation | Permanent mold casting of reactive melt |
| US5299619A (en) | 1992-12-30 | 1994-04-05 | Hitchiner Manufacturing Co., Inc. | Method and apparatus for making intermetallic castings |
| US5981083A (en) | 1993-01-08 | 1999-11-09 | Howmet Corporation | Method of making composite castings using reinforcement insert cladding |
| US5603759A (en) | 1993-02-11 | 1997-02-18 | Indresco Inc. | Stable, cement-bonded, overhead sprayed insulating mixes and resultant linings |
| US5366570A (en) | 1993-03-02 | 1994-11-22 | Cermics Venture International | Titanium matrix composites |
| JP3146731B2 (ja) | 1993-03-19 | 2001-03-19 | 石川島播磨重工業株式会社 | チタンアルミナイドの加工方法 |
| US5443892A (en) | 1993-03-19 | 1995-08-22 | Martin Marietta Energy Systems, Inc. | Coated graphite articles useful in metallurgical processes and method for making same |
| US5368657A (en) | 1993-04-13 | 1994-11-29 | Iowa State University Research Foundation, Inc. | Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions |
| GB9308363D0 (en) | 1993-04-22 | 1993-06-09 | Foseco Int | Refractory compositions for use in the casting of metals |
| US5346184A (en) | 1993-05-18 | 1994-09-13 | The Regents Of The University Of Michigan | Method and apparatus for rapidly solidified ingot production |
| US5407001A (en) | 1993-07-08 | 1995-04-18 | Precision Castparts Corporation | Yttria-zirconia slurries and mold facecoats for casting reactive metals |
| US5350466A (en) | 1993-07-19 | 1994-09-27 | Howmet Corporation | Creep resistant titanium aluminide alloy |
| JPH0789789A (ja) | 1993-09-20 | 1995-04-04 | Fujitsu Ltd | Si結晶、結晶成長方法および結晶成長装置 |
| US5424027A (en) | 1993-12-06 | 1995-06-13 | The United States Of America As Represented By The Secretary Of The Air Force | Method to produce hot-worked gamma titanium aluminide articles |
| WO1995024511A1 (en) | 1994-03-10 | 1995-09-14 | Nippon Steel Corporation | Titanium-aluminium intermetallic compound alloy material having superior high temperature characteristics and method for producing the same |
| DE59507205D1 (de) | 1994-06-09 | 1999-12-16 | Ald Vacuum Techn Gmbh | Verfahren zum Herstellen von Gussteilen aus reaktiven Metallen und wiederverwendbare Giessform zur Durchführung des Verfahrens |
| US5453243A (en) | 1994-08-17 | 1995-09-26 | The United States Of America As Represented By The Secretary Of The Interior | Method for producing titanium aluminide weld rod |
| US5643844A (en) | 1994-09-27 | 1997-07-01 | Precision Castparts Corporation | Method for stabilizing ceramic suspensions |
| GB2297285A (en) | 1995-01-25 | 1996-07-31 | T & N Technology Ltd | Investment casting mould |
| US5749937A (en) | 1995-03-14 | 1998-05-12 | Lockheed Idaho Technologies Company | Fast quench reactor and method |
| WO1996030552A1 (en) | 1995-03-28 | 1996-10-03 | Alliedsignal Inc. | Castable gamma titanium-aluminide alloy containing niobium, chromium and silicon |
| JPH08281371A (ja) * | 1995-04-12 | 1996-10-29 | Tokuyama Corp | 鋳型材 |
| CN1060683C (zh) | 1995-06-09 | 2001-01-17 | 华南理工大学 | 板式旋膜气液传质反应装置 |
| US5766329A (en) | 1996-05-13 | 1998-06-16 | Alliedsignal Inc. | Inert calcia facecoats for investment casting of titanium and titanium-aluminide alloys |
| KR100273054B1 (ko) | 1996-06-27 | 2000-12-01 | 곤도 데루히사 | 단결정 인상용 도가니 및 그 제조방법 |
| US5908516A (en) | 1996-08-28 | 1999-06-01 | Nguyen-Dinh; Xuan | Titanium Aluminide alloys containing Boron, Chromium, Silicon and Tungsten |
| DE19639514C1 (de) | 1996-09-26 | 1997-12-18 | Ald Vacuum Techn Gmbh | Verfahren und Vorrichtung zum Herstellen von gesteuert erstarrten Präzisionsgußteilen durch Schleudergießen |
| US5927379A (en) | 1996-09-26 | 1999-07-27 | Pcc Structurals, Inc. | Infiltration method for producing shells useful for investment casting |
| US5776617A (en) | 1996-10-21 | 1998-07-07 | The United States Of America Government As Represented By The Administrator Of The National Aeronautics And Space Administration | Oxidation-resistant Ti-Al-Fe alloy diffusion barrier coatings |
| US5823243A (en) | 1996-12-31 | 1998-10-20 | General Electric Company | Low-porosity gamma titanium aluminide cast articles and their preparation |
| US6024163A (en) | 1997-01-07 | 2000-02-15 | Precision Castparts Corp. | Investment casting brittle, reactive materials |
| JPH10204555A (ja) | 1997-01-17 | 1998-08-04 | Toyota Motor Corp | アルミニウム鋳造合金の結晶粒微細化剤の製造方法 |
| DE69805164T2 (de) | 1997-01-27 | 2002-10-31 | Alliedsignal Inc., Morristown | Verfahren zur herstellung eines tiegels mit integriertem form zur preiswerten herstellung von gamma-tial-gussteilen |
| JPH10211541A (ja) | 1997-01-27 | 1998-08-11 | Hitachi Metals Ltd | 耐久性鋳型 |
| DE19735841A1 (de) | 1997-08-19 | 1999-02-25 | Geesthacht Gkss Forschung | Legierung auf der Basis von Titanaluminiden |
| JPH11116399A (ja) | 1997-10-16 | 1999-04-27 | Denso Corp | 炭化タンタルのコーティング方法及びこの方法を用いて製造した単結晶製造装置 |
| US5975188A (en) | 1997-10-30 | 1999-11-02 | Howmet Research Corporation | Method of casting with improved detectability of subsurface inclusions |
| EP1034315A1 (en) | 1997-11-20 | 2000-09-13 | Tubitak-Marmara Research Center | In situ process for producing an aluminium alloy containing titanium carbide particles |
| DE19752777C2 (de) | 1997-11-28 | 1999-12-09 | Daimler Chrysler Ag | Verfahren zur Herstellung eines Al¶2¶O¶3¶/Titanaluminid-Verbundkörpers sowie Verwendung des Verfahrens zur Herstellung von tribologisch beanspruchten Systemkomponenten |
| US5997802A (en) | 1997-11-28 | 1999-12-07 | The United States Of America As Represented By The United States Department Of Energy | Directly susceptible, noncarbon metal ceramic composite crucible |
| US6030472A (en) | 1997-12-04 | 2000-02-29 | Philip Morris Incorporated | Method of manufacturing aluminide sheet by thermomechanical processing of aluminide powders |
| WO1999030854A1 (en) | 1997-12-15 | 1999-06-24 | Pcc Structurals, Inc. | Method for imaging inclusions in investment castings |
| US6619368B1 (en) | 1997-12-15 | 2003-09-16 | Pcc Structurals, Inc. | Method for imaging inclusions in investment castings |
| AT406673B (de) | 1998-03-04 | 2000-07-25 | Treibacher Auermet Prod Gmbh | Verwendung von metalloxiden zur bereitung keramischer formmassen |
| JPH11269584A (ja) | 1998-03-25 | 1999-10-05 | Ishikawajima Harima Heavy Ind Co Ltd | 精密鋳造用チタンアルミナイド |
| FR2779716B1 (fr) | 1998-06-15 | 2000-08-18 | Vesuvius France Sa | Materiau refractaire isolant, procede de preparation et pieces a base de ce materiau |
| US6352101B1 (en) | 1998-07-21 | 2002-03-05 | General Electric Company | Reinforced ceramic shell mold and related processes |
| EP1109640B1 (de) | 1998-08-18 | 2002-05-22 | Mannesmannröhren-Werke AG | Metallurgisches gefäss |
| US6174387B1 (en) | 1998-09-14 | 2001-01-16 | Alliedsignal, Inc. | Creep resistant gamma titanium aluminide alloy |
| DE19846781C2 (de) | 1998-10-10 | 2000-07-20 | Ald Vacuum Techn Ag | Verfahren und Vorrichtung zum Herstellen von Präzisionsgußteilen durch Schleudergießen |
| AU3064000A (en) | 1999-01-28 | 2000-08-18 | British Nuclear Fuels Plc | Coated graphite crucible |
| US6283195B1 (en) | 1999-02-02 | 2001-09-04 | Metal Casting Technology, Incorporated | Passivated titanium aluminide tooling |
| US6723279B1 (en) | 1999-03-15 | 2004-04-20 | Materials And Electrochemical Research (Mer) Corporation | Golf club and other structures, and novel methods for making such structures |
| US6284389B1 (en) | 1999-04-30 | 2001-09-04 | Pacific Aerospace & Electronics, Inc. | Composite materials and methods for manufacturing composite materials |
| WO2000067541A1 (en) | 1999-04-30 | 2000-11-09 | Pacific Aerospace And Electronics, Inc. | Composite electronics packages and methods of manufacture |
| US6355362B1 (en) | 1999-04-30 | 2002-03-12 | Pacific Aerospace & Electronics, Inc. | Electronics packages having a composite structure and methods for manufacturing such electronics packages |
| JP3915324B2 (ja) | 1999-06-08 | 2007-05-16 | 石川島播磨重工業株式会社 | チタンアルミナイド合金材料及びその鋳造品 |
| US6425504B1 (en) | 1999-06-29 | 2002-07-30 | Iowa State University Research Foundation, Inc. | One-piece, composite crucible with integral withdrawal/discharge section |
| GB9915394D0 (en) | 1999-07-02 | 1999-09-01 | Rolls Royce Plc | A method of adding boron to a heavy metal containung titanium aluminide alloy and a heavy containing titanium aluminide alloy |
| US6746508B1 (en) | 1999-10-22 | 2004-06-08 | Chrysalis Technologies Incorporated | Nanosized intermetallic powders |
| JP2001208481A (ja) | 2000-01-25 | 2001-08-03 | Akechi Ceramics Co Ltd | 黒鉛坩堝 |
| JP4287991B2 (ja) | 2000-02-23 | 2009-07-01 | 三菱重工業株式会社 | TiAl基合金及びその製造方法並びにそれを用いた動翼 |
| DE10024343A1 (de) | 2000-05-17 | 2001-11-22 | Gfe Met & Mat Gmbh | Bauteil auf Basis von gamma-TiAl-Legierungen mit Bereichen mit gradiertem Gefüge |
| US6390179B1 (en) | 2000-11-08 | 2002-05-21 | Pcc Structurals, Inc. | Method for processing materials to increase slurry lifetime |
| US20020108679A1 (en) | 2000-12-19 | 2002-08-15 | Chandley George D. | Titanium aluminide material resistant to molten aluminum |
| GB0031009D0 (en) * | 2000-12-20 | 2001-01-31 | Robson Brian | Ceramic core and/or mould for metal casting |
| ATE340665T1 (de) | 2001-05-15 | 2006-10-15 | Santoku Corp | Giessen von legierungen mit isotropen graphitformwerkzeugen |
| US6705385B2 (en) | 2001-05-23 | 2004-03-16 | Santoku America, Inc. | Castings of metallic alloys with improved surface quality, structural integrity and mechanical properties fabricated in anisotropic pyrolytic graphite molds under vacuum |
| US6755239B2 (en) | 2001-06-11 | 2004-06-29 | Santoku America, Inc. | Centrifugal casting of titanium alloys with improved surface quality, structural integrity and mechanical properties in isotropic graphite molds under vacuum |
| JP2003073794A (ja) | 2001-06-18 | 2003-03-12 | Shin Etsu Chem Co Ltd | 耐熱性被覆部材 |
| DE10125129B4 (de) | 2001-06-26 | 2006-01-26 | Ald Vacuum Technologies Ag | Permanentkokille für im Schleuderguß hergestellte Ventile für Hubkolbenmotore |
| JP2003056988A (ja) | 2001-08-07 | 2003-02-26 | Daihatsu Motor Co Ltd | 金属溶融用るつぼ |
| US6596963B2 (en) | 2001-08-31 | 2003-07-22 | General Electric Company | Production and use of welding filler metal |
| US6667262B2 (en) | 2001-09-07 | 2003-12-23 | The United States Of America As Represented By The Secretary Of The Navy | Self-lubricating ceramic composites |
| DE10209346B4 (de) | 2002-03-02 | 2004-02-19 | Daimlerchrysler Ag | Herstellungsverfahren für ein mehrteiliges Ventil für Verbrennungsmotoren |
| US6676381B2 (en) | 2002-04-03 | 2004-01-13 | General Electric Company | Method and apparatus for casting near-net shape articles |
| CA2426515A1 (en) | 2002-04-26 | 2003-10-26 | Ashland Inc. | Process for preparing detailed foundry shapes and castings |
| US20050084407A1 (en) | 2003-08-07 | 2005-04-21 | Myrick James J. | Titanium group powder metallurgy |
| JP2005060203A (ja) * | 2003-08-20 | 2005-03-10 | Denki Kagaku Kogyo Kk | アルミナセメント組成物及びそれを用いた不定形耐火物 |
| US7500511B2 (en) | 2003-09-24 | 2009-03-10 | Magneco/Metrel, Inc. | Molding composition and method of use |
| DE10346953A1 (de) | 2003-10-09 | 2005-05-04 | Mtu Aero Engines Gmbh | Werkzeug zum Herstellen von Gussbauteilen, Verfahren zum Herstellen des Werkzeugs und Verfahren zum Herstellen von Gussbauteilen |
| DE102004002956A1 (de) | 2004-01-21 | 2005-08-11 | Mtu Aero Engines Gmbh | Verfahren zum Herstellen von Gussbauteilen |
| DE102004035892A1 (de) | 2004-07-23 | 2006-02-16 | Mtu Aero Engines Gmbh | Verfahren zum Herstellen eines Gussbauteils |
| US7448433B2 (en) | 2004-09-24 | 2008-11-11 | Honeywell International Inc. | Rapid prototype casting |
| DE102005015862A1 (de) | 2005-04-07 | 2006-10-12 | Ald Vacuum Technologies Gmbh | Verfahren zum Herstellen einer Vielzahl von insbesondere aus Titanaluminid bestehenden Bauteilen und Vorrichtung zur Durchführung dieses Verfahrens |
| DE102005042475A1 (de) | 2005-09-07 | 2007-03-08 | Ks Aluminium-Technologie Ag | Formtrennschicht für das Gießen von Nichteisenmetallen |
| JP4451907B2 (ja) | 2005-09-07 | 2010-04-14 | 株式会社Ihi | 鋳型及びその製造方法並びに鋳型を用いた鋳造品 |
| TWI400369B (zh) | 2005-10-06 | 2013-07-01 | Vesuvius Crucible Co | 用於矽結晶的坩堝及其製造方法 |
| US7923127B2 (en) | 2005-11-09 | 2011-04-12 | United Technologies Corporation | Direct rolling of cast gamma titanium aluminide alloys |
| EP1797977A3 (en) | 2005-12-19 | 2008-08-06 | Howmet Corporation | Die casting in investment mold |
| US20070199676A1 (en) | 2006-02-27 | 2007-08-30 | Howmet Corporation | Composite mold with fugitive metal backup |
| WO2008073141A2 (en) | 2006-05-30 | 2008-06-19 | Howmet Corporation | Melting method using graphite melting vessel |
| GB2440334A (en) | 2006-06-13 | 2008-01-30 | Rolls Royce Plc | A method of controlling the microstructure of a metal |
| US20080003453A1 (en) | 2006-07-03 | 2008-01-03 | John Ogren | Brazing process and composition made by the process |
| WO2008049452A1 (en) | 2006-10-23 | 2008-05-02 | Manfred Renkel | Apparatus for centrifugal casting |
| ATE520486T1 (de) | 2006-10-23 | 2011-09-15 | Manfred Renkel | Verfahren zur herstellung von feingussteilen durch schleuderguss |
| US7582133B2 (en) | 2006-12-27 | 2009-09-01 | General Electric Company | Methods for reducing carbon contamination when melting highly reactive alloys |
| US7790101B2 (en) | 2006-12-27 | 2010-09-07 | General Electric Company | Articles for use with highly reactive alloys |
| US8235092B2 (en) | 2007-01-30 | 2012-08-07 | Minop Co. | Insulated investment casting mold and method of making |
| ATE508820T1 (de) | 2007-04-11 | 2011-05-15 | Manfred Renkel | Verfahren zur herstellung von feingussteilen durch schleuderguss |
| US8007712B2 (en) | 2007-04-30 | 2011-08-30 | General Electric Company | Reinforced refractory crucibles for melting titanium alloys |
| US20100025001A1 (en) | 2007-06-25 | 2010-02-04 | Ching-Pang Lee | Methods for fabricating gas turbine components using an integrated disposable core and shell die |
| DE102007033622B4 (de) | 2007-07-17 | 2010-04-08 | Heraeus Electro-Nite International N.V. | Verwendung einer hochtemperaturbeständigen Vorrichtung in Stahlschmelzen |
| KR101200386B1 (ko) | 2007-10-03 | 2012-11-12 | 미츠이 긴조쿠 고교 가부시키가이샤 | 산화인듐계 타깃 |
| GB0719873D0 (en) | 2007-10-12 | 2007-11-21 | Rolls Royce Plc | Shape correcting components |
| US20110094705A1 (en) | 2007-11-27 | 2011-04-28 | General Electric Company | Methods for centrifugally casting highly reactive titanium metals |
| US20090133850A1 (en) | 2007-11-27 | 2009-05-28 | General Electric Company | Systems for centrifugally casting highly reactive titanium metals |
| US8062581B2 (en) | 2007-11-30 | 2011-11-22 | Bernard Patrick Bewlay | Refractory crucibles capable of managing thermal stress and suitable for melting highly reactive alloys |
| US7761969B2 (en) | 2007-11-30 | 2010-07-27 | General Electric Company | Methods for making refractory crucibles |
| KR101570139B1 (ko) | 2008-06-19 | 2015-11-19 | 보르그워너 인코퍼레이티드 | 터보기계의 로터 샤프트, 및 터보기계의 로터의 제조 방법 |
| US8033320B2 (en) | 2008-07-25 | 2011-10-11 | General Electric Company | High emittance shell molds for directional casting |
| DE102008042375A1 (de) * | 2008-09-25 | 2010-04-15 | Manfred Renkel | Verfahren zur Herstellung einer Gussform zum Vergießen von Metallschmelzen |
| DE102008060520A1 (de) | 2008-12-04 | 2010-06-10 | Schott Ag | Ein Tiegel zur Prozessierung hochschmelzender Materialien |
| CN101829770A (zh) | 2009-03-13 | 2010-09-15 | 通用电气公司 | 用于离心铸造高活性钛金属的系统 |
| DE102009027019B4 (de) | 2009-05-13 | 2011-01-05 | Manfred Renkel | Implantat aus intermetallischen Titan-Aluminid-Legierungen |
| PL388518A1 (pl) | 2009-07-10 | 2011-01-17 | Instytut Nawozów Sztucznych | Katalizator do wysokotemperaturowego rozkładu podtlenku azotu |
| DE202009013126U1 (de) | 2009-09-29 | 2009-12-10 | Egon Evertz Kg (Gmbh & Co.) | Kokille zum Stranggießen |
| GB0918457D0 (en) | 2009-10-21 | 2009-12-09 | Doncasters Ltd | Casting long products |
| US8590595B2 (en) | 2011-03-30 | 2013-11-26 | General Electric Company | Casting methods and apparatus |
| US8579013B2 (en) | 2011-09-30 | 2013-11-12 | General Electric Company | Casting mold composition with improved detectability for inclusions and method of casting |
| US20130084190A1 (en) | 2011-09-30 | 2013-04-04 | General Electric Company | Titanium aluminide articles with improved surface finish and methods for their manufacture |
| US8858697B2 (en) | 2011-10-28 | 2014-10-14 | General Electric Company | Mold compositions |
| US9011205B2 (en) | 2012-02-15 | 2015-04-21 | General Electric Company | Titanium aluminide article with improved surface finish |
| US8932518B2 (en) | 2012-02-29 | 2015-01-13 | General Electric Company | Mold and facecoat compositions |
| US20130248061A1 (en) | 2012-03-23 | 2013-09-26 | General Electric Company | Methods for processing titanium aluminide intermetallic compositions |
| US10597756B2 (en) | 2012-03-24 | 2020-03-24 | General Electric Company | Titanium aluminide intermetallic compositions |
| US8906292B2 (en) | 2012-07-27 | 2014-12-09 | General Electric Company | Crucible and facecoat compositions |
| US8708033B2 (en) | 2012-08-29 | 2014-04-29 | General Electric Company | Calcium titanate containing mold compositions and methods for casting titanium and titanium aluminide alloys |
| US8992824B2 (en) | 2012-12-04 | 2015-03-31 | General Electric Company | Crucible and extrinsic facecoat compositions |
| US9592548B2 (en) | 2013-01-29 | 2017-03-14 | General Electric Company | Calcium hexaluminate-containing mold and facecoat compositions and methods for casting titanium and titanium aluminide alloys |
| US9721044B2 (en) | 2013-05-10 | 2017-08-01 | General Electric Company | Systems and methods for non-destructive evaluation of molds and crucibles used in investment casting |
| US9511417B2 (en) | 2013-11-26 | 2016-12-06 | General Electric Company | Silicon carbide-containing mold and facecoat compositions and methods for casting titanium and titanium aluminide alloys |
| JP6237827B2 (ja) | 2016-06-10 | 2017-11-29 | 大日本印刷株式会社 | サスペンション用基板、サスペンション、ヘッド付サスペンション、およびハードディスクドライブ |
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| US20130224066A1 (en) | 2013-08-29 |
| US9802243B2 (en) | 2017-10-31 |
| CA2806844C (en) | 2020-10-27 |
| US20190344331A1 (en) | 2019-11-14 |
| BR102013004515A2 (pt) | 2014-04-22 |
| US20150224566A1 (en) | 2015-08-13 |
| US20180029107A1 (en) | 2018-02-01 |
| EP2659994A3 (en) | 2014-10-01 |
| EP2659994A2 (en) | 2013-11-06 |
| US10695824B2 (en) | 2020-06-30 |
| EP2659994B1 (en) | 2022-07-06 |
| CN103286256A (zh) | 2013-09-11 |
| US8932518B2 (en) | 2015-01-13 |
| JP2013180344A (ja) | 2013-09-12 |
| US10589344B2 (en) | 2020-03-17 |
| CN103286256B (zh) | 2017-07-18 |
| CA2806844A1 (en) | 2013-08-29 |
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