DE68902929T2 - Verfahren zum wiedergewinnen von gegossenen feuerfesten zusammensetzungen aus schlicker, verwendet beim modellausschmelzverfahren und kerne. - Google Patents
Verfahren zum wiedergewinnen von gegossenen feuerfesten zusammensetzungen aus schlicker, verwendet beim modellausschmelzverfahren und kerne.Info
- Publication number
- DE68902929T2 DE68902929T2 DE1989602929 DE68902929T DE68902929T2 DE 68902929 T2 DE68902929 T2 DE 68902929T2 DE 1989602929 DE1989602929 DE 1989602929 DE 68902929 T DE68902929 T DE 68902929T DE 68902929 T2 DE68902929 T2 DE 68902929T2
- Authority
- DE
- Germany
- Prior art keywords
- sliper
- core
- calcined
- binder
- treated
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
-
- 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
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/165—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents in the manufacture of multilayered shell moulds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
- C01F17/218—Yttrium oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/153,063 US4799530A (en) | 1988-02-08 | 1988-02-08 | Method for recovering casting refractory compositions from investment casting slurries |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68902929D1 DE68902929D1 (de) | 1992-10-29 |
DE68902929T2 true DE68902929T2 (de) | 1993-03-25 |
Family
ID=22545623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1989602929 Expired - Fee Related DE68902929T2 (de) | 1988-02-08 | 1989-01-19 | Verfahren zum wiedergewinnen von gegossenen feuerfesten zusammensetzungen aus schlicker, verwendet beim modellausschmelzverfahren und kerne. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4799530A (de) |
EP (1) | EP0327851B1 (de) |
JP (1) | JPH01282120A (de) |
AT (1) | ATE80817T1 (de) |
DE (1) | DE68902929T2 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5535811A (en) * | 1987-01-28 | 1996-07-16 | Remet Corporation | Ceramic shell compositions for casting of reactive metals |
US4815516A (en) * | 1988-03-04 | 1989-03-28 | Precision Castparts Corp. | Method for recovering casting refractory compositions from investment casting shell molds |
US4952246A (en) * | 1989-08-23 | 1990-08-28 | Dependable Foundry Equipment Company, Inc. | Plant and method for reconditioning green foundry sand |
US5435959A (en) * | 1993-12-17 | 1995-07-25 | Nike, Inc. | Method of making a mold and parts from the mold |
US20070181278A1 (en) * | 2006-02-09 | 2007-08-09 | Bancheri Stephen F | Method of removal of cores from niobium-based part |
US8980778B2 (en) | 2006-11-10 | 2015-03-17 | Buntrock Industries, Inc. | Mold system for casting of reactive alloys |
US9334549B2 (en) * | 2013-12-20 | 2016-05-10 | General Electric Company | Systems and methods for recovery of rare-earth constituents from environmental barrier coatings |
US10041890B2 (en) * | 2015-08-04 | 2018-08-07 | United Technologies Corporation | Radiopaque protective fill for manufacture, repair, or remanufacture of cooled components |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL131569C (de) * | 1965-12-28 | 1900-01-01 | ||
US3635658A (en) * | 1969-04-02 | 1972-01-18 | Sylvania Electric Prod | Rare earth oxide process |
SU530731A1 (ru) * | 1975-05-22 | 1976-10-05 | Предприятие П/Я М-5539 | Суспензи дл изготовлени керамических литейных форм |
SU856645A1 (ru) * | 1979-11-16 | 1981-08-23 | Предприятие П/Я В-2190 | Способ регенерации порошков огнеупорных окислов из отходов суспензии при производстве лить в керамических формах |
US4386056A (en) * | 1982-07-30 | 1983-05-31 | Westinghouse Electric Corp. | Recovery of yttrium and europium from contaminated solutions |
JPS60161330A (ja) * | 1984-01-31 | 1985-08-23 | Kasei Optonix Co Ltd | 廃希土類蛍光体からの高純度希土類酸化物の回収方法 |
JPS6126513A (ja) * | 1984-07-13 | 1986-02-05 | Asahi Chem Ind Co Ltd | 希土類元素複合酸化物の製造法 |
JPS6147779A (ja) * | 1984-08-14 | 1986-03-08 | Mitsui Mining & Smelting Co Ltd | 廃家電製品からの螢光塗料回収方法 |
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 |
-
1988
- 1988-02-08 US US07/153,063 patent/US4799530A/en not_active Expired - Lifetime
-
1989
- 1989-01-19 EP EP89100903A patent/EP0327851B1/de not_active Expired - Lifetime
- 1989-01-19 DE DE1989602929 patent/DE68902929T2/de not_active Expired - Fee Related
- 1989-01-19 AT AT89100903T patent/ATE80817T1/de not_active IP Right Cessation
- 1989-01-23 JP JP1012044A patent/JPH01282120A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0327851A3 (en) | 1989-09-20 |
DE68902929D1 (de) | 1992-10-29 |
JPH01282120A (ja) | 1989-11-14 |
EP0327851B1 (de) | 1992-09-23 |
US4799530A (en) | 1989-01-24 |
EP0327851A2 (de) | 1989-08-16 |
ATE80817T1 (de) | 1992-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |