DE602007000443D1 - Method for removing cores from parts based on niobium - Google Patents

Method for removing cores from parts based on niobium

Info

Publication number
DE602007000443D1
DE602007000443D1 DE602007000443T DE602007000443T DE602007000443D1 DE 602007000443 D1 DE602007000443 D1 DE 602007000443D1 DE 602007000443 T DE602007000443 T DE 602007000443T DE 602007000443 T DE602007000443 T DE 602007000443T DE 602007000443 D1 DE602007000443 D1 DE 602007000443D1
Authority
DE
Germany
Prior art keywords
niobium
parts based
removing cores
cores
parts
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.)
Active
Application number
DE602007000443T
Other languages
German (de)
Inventor
Stephen Francis Bancheri
Frederic Joseph Klug
Robert Joseph Lyons
Joan Katherine Mckiever
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of DE602007000443D1 publication Critical patent/DE602007000443D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001—Removing cores
    • B22D29/002—Removing cores by leaching, washing or dissolving

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
DE602007000443T 2006-02-09 2007-02-01 Method for removing cores from parts based on niobium Active DE602007000443D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/276,002 US20070181278A1 (en) 2006-02-09 2006-02-09 Method of removal of cores from niobium-based part

Publications (1)

Publication Number Publication Date
DE602007000443D1 true DE602007000443D1 (en) 2009-02-26

Family

ID=37993638

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007000443T Active DE602007000443D1 (en) 2006-02-09 2007-02-01 Method for removing cores from parts based on niobium

Country Status (4)

Country Link
US (1) US20070181278A1 (en)
EP (1) EP1818121B1 (en)
JP (1) JP2007210032A (en)
DE (1) DE602007000443D1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7981520B2 (en) * 2007-08-08 2011-07-19 General Electric Company Oxide-forming protective coatings for niobium-based materials
US7845390B2 (en) * 2008-01-31 2010-12-07 General Electric Company Hafnia-modified rare-earth metal-based ceramic bodies and casting processes performed therewith
EP2322684A1 (en) 2009-10-16 2011-05-18 General Electric Company Oxide-forming protective coatings for niobium-based materials
US8673397B2 (en) 2010-11-10 2014-03-18 General Electric Company Methods of fabricating and coating a component
US8601691B2 (en) 2011-04-27 2013-12-10 General Electric Company Component and methods of fabricating a coated component using multiple types of fillers
DE102013109116A1 (en) 2012-08-27 2014-03-27 General Electric Company (N.D.Ges.D. Staates New York) Component with cooling channels and method of manufacture
US9238265B2 (en) 2012-09-27 2016-01-19 General Electric Company Backstrike protection during machining of cooling features
US9476306B2 (en) 2013-11-26 2016-10-25 General Electric Company Components with multi-layered cooling features and methods of manufacture
RU2557119C1 (en) * 2014-03-12 2015-07-20 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") Removal of ceramic material from parts casts
JP5905631B1 (en) * 2015-09-15 2016-04-20 三菱日立パワーシステムズ株式会社 Rotor blade, gas turbine provided with the same, and method of manufacturing rotor blade
CN105945262B (en) * 2016-05-09 2018-12-04 广东富行洗涤剂科技有限公司 It is a kind of acid except shell mold agent
US10710154B2 (en) * 2018-03-09 2020-07-14 Raytheon Technologies Corporation Casting core removal through thermal cycling
CN109175316B (en) * 2018-09-21 2021-01-22 贵州安吉航空精密铸造有限责任公司 Method for removing mold shell and mold core in investment casting process

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594118A (en) * 1968-10-30 1971-07-20 Sylvania Electric Prod Separation of yttrium and cerium
JPS53100926A (en) * 1977-02-16 1978-09-02 Riken Piston Ring Ind Co Ltd Sand removing method of casted article
US4082566A (en) * 1977-03-09 1978-04-04 General Electric Company Molten salt leach for removal of inorganic cores from directionally solidified eutectic alloy structures
US4119437A (en) * 1977-03-09 1978-10-10 General Electric Company Method for removing Y2 O3 or Sm2 O3 cores from castings
US4134777A (en) * 1977-10-06 1979-01-16 General Electric Company Method for rapid removal of cores made of Y2 O3 from directionally solidified eutectic and superalloy materials
US4141781A (en) * 1977-10-06 1979-02-27 General Electric Company Method for rapid removal of cores made of βAl2 O3 from directionally solidified eutectic and superalloy and superalloy materials
US4837187A (en) * 1987-06-04 1989-06-06 Howmet Corporation Alumina-based core containing yttria
US4799530A (en) * 1988-02-08 1989-01-24 Precision Castparts Corp. Method for recovering casting refractory compositions from investment casting slurries
JPH05263178A (en) * 1992-03-17 1993-10-12 Hitachi Ltd Manufacture of high strength niobium alloy and niobium alloy
GB2266677B (en) * 1992-05-08 1995-02-01 Rolls Royce Plc Improvements in or relating to the leaching of ceramic materials
JPH0751794A (en) * 1993-08-21 1995-02-28 Daido Steel Co Ltd Production of ceramic shell
GB2326876A (en) * 1997-07-05 1999-01-06 Rolls Royce Plc Ceramic cores
US6676381B2 (en) * 2002-04-03 2004-01-13 General Electric Company Method and apparatus for casting near-net shape articles
JP2004114060A (en) * 2002-09-24 2004-04-15 Daido Steel Co Ltd Method for melting and casting high melting point metal
JP2004174598A (en) * 2002-11-23 2004-06-24 Taiyo Machinery Co Ltd Molding sand for water-soluble core and method for making water-soluble core and water-soluble core

Also Published As

Publication number Publication date
US20070181278A1 (en) 2007-08-09
JP2007210032A (en) 2007-08-23
EP1818121B1 (en) 2009-01-07
EP1818121A1 (en) 2007-08-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition