FR2609646B1 - Dispositif et procede pour ameliorer le taux de dissolution d'un materiau donne - Google Patents

Dispositif et procede pour ameliorer le taux de dissolution d'un materiau donne

Info

Publication number
FR2609646B1
FR2609646B1 FR888800346A FR8800346A FR2609646B1 FR 2609646 B1 FR2609646 B1 FR 2609646B1 FR 888800346 A FR888800346 A FR 888800346A FR 8800346 A FR8800346 A FR 8800346A FR 2609646 B1 FR2609646 B1 FR 2609646B1
Authority
FR
France
Prior art keywords
improving
dissolution rate
given material
given
dissolution
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
Application number
FR888800346A
Other languages
English (en)
Other versions
FR2609646A1 (fr
Inventor
Keerthi Devendra
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of FR2609646A1 publication Critical patent/FR2609646A1/fr
Application granted granted Critical
Publication of FR2609646B1 publication Critical patent/FR2609646B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Mold Materials And Core Materials (AREA)
FR888800346A 1987-01-17 1988-01-14 Dispositif et procede pour ameliorer le taux de dissolution d'un materiau donne Expired - Fee Related FR2609646B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8700968A GB2199822B (en) 1987-01-17 1987-01-17 Ceramic core material and method of enhancing its leaching rate.

Publications (2)

Publication Number Publication Date
FR2609646A1 FR2609646A1 (fr) 1988-07-22
FR2609646B1 true FR2609646B1 (fr) 1991-02-22

Family

ID=10610792

Family Applications (1)

Application Number Title Priority Date Filing Date
FR888800346A Expired - Fee Related FR2609646B1 (fr) 1987-01-17 1988-01-14 Dispositif et procede pour ameliorer le taux de dissolution d'un materiau donne

Country Status (5)

Country Link
US (1) US4836268A (fr)
JP (1) JPS63192553A (fr)
DE (1) DE3801075A1 (fr)
FR (1) FR2609646B1 (fr)
GB (1) GB2199822B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255334B (en) * 1991-04-30 1994-09-28 Ici Canada Ammonium nitrate density modification
US5273104A (en) * 1991-09-20 1993-12-28 United Technologies Corporation Process for making cores used in investment casting
US6241000B1 (en) * 1995-06-07 2001-06-05 Howmet Research Corporation Method for removing cores from castings
US6913064B2 (en) * 2003-10-15 2005-07-05 United Technologies Corporation Refractory metal core
US20120186768A1 (en) * 2009-06-26 2012-07-26 Donald Sun Methods for forming faucets and fixtures
US8393381B2 (en) * 2011-05-18 2013-03-12 Pcc Airfoils, Inc. Method of forming a cast metal article
CN103252477B (zh) * 2012-02-15 2015-06-10 中国科学院金属研究所 一种空心叶片陶瓷型芯高效脱除设备
US10307817B2 (en) * 2014-10-31 2019-06-04 United Technologies Corporation Additively manufactured casting articles for manufacturing gas turbine engine parts
CN106583695B (zh) * 2015-10-14 2018-10-02 沈阳铸造研究所有限公司 一种氧化铝基陶瓷型芯用高温高压脱芯装置和脱芯方法
CN110483087A (zh) * 2019-09-16 2019-11-22 郑州航空工业管理学院 燃气轮机涡轮叶片精密铸造用氧化铝基陶瓷型芯制造方法
US11813665B2 (en) 2020-09-14 2023-11-14 General Electric Company Methods for casting a component having a readily removable casting core

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3218684A (en) * 1962-08-31 1965-11-23 Dow Chemical Co Process of making cellular metal structures
US3549736A (en) * 1966-09-02 1970-12-22 Lexington Lab Inc Process for forming sintered leachable objects of various shapes
GB1281684A (en) * 1968-07-04 1972-07-12 Foseco Trading Ag Heat insulators for use in the casting of molten metal
US3563711A (en) * 1968-07-18 1971-02-16 Trw Inc Process for removal of siliceous cores from castings
GB1279628A (en) * 1969-01-17 1972-06-28 Resil Processes Ltd Improvements in or relating to refractory insulating materials suitable for use as feeder head linings
GB1279096A (en) * 1969-02-08 1972-06-21 Resil Processes Ltd Improvements in or relating to refractory compositions
US3694264A (en) * 1970-09-28 1972-09-26 Stuart L Weinland Core removal
US3701379A (en) * 1971-07-06 1972-10-31 United Aircraft Corp Process of casting utilizing magnesium oxide cores
US3743692A (en) * 1972-06-19 1973-07-03 Chemotronics International Inc Method for the removal of refractory porous shapes from mating formed materials
US4162173A (en) * 1977-03-09 1979-07-24 General Electric Company Molten salt leach for removal of inorganic cores from directionally solidified eutectic alloy structures
US4156614A (en) * 1977-10-06 1979-05-29 General Electric Company Alumina-based ceramics for core materials
US4777154A (en) * 1978-08-28 1988-10-11 Torobin Leonard B Hollow microspheres made from dispersed particle compositions and their production
GB2042951B (en) * 1978-11-08 1982-08-04 Rolls Royce Investment casting core
JPS58199747A (ja) * 1982-05-14 1983-11-21 Hoya Corp 屈折率勾配を有するガラス体の製造法
GB2139616B (en) * 1983-05-13 1987-04-01 Glaverbel Gas-filled glass beads
GB2169595B (en) * 1984-12-13 1989-06-07 Canon Kk Method of establishing a glass material in fine pores of porous glass.
US4556096A (en) * 1985-01-14 1985-12-03 Director-General Of The Agency Of Industrial Science And Technology Method for the preparation of a spongy metallic body
US4632876A (en) * 1985-06-12 1986-12-30 Minnesota Mining And Manufacturing Company Ceramic spheroids having low density and high crush resistance
DE3523961A1 (de) * 1985-07-04 1987-01-15 Licentia Gmbh Vorrichtung zum behandeln mindestens eines keramikgegenstandes in einer alkalihydroxidschmelze
US4707312A (en) * 1985-10-09 1987-11-17 Westinghouse Electric Corp. Method for producing ceramic articles of increased fracture toughness

Also Published As

Publication number Publication date
DE3801075A1 (de) 1988-07-28
GB2199822A (en) 1988-07-20
FR2609646A1 (fr) 1988-07-22
GB8700968D0 (en) 1987-02-18
US4836268A (en) 1989-06-06
GB2199822B (en) 1990-10-10
JPS63192553A (ja) 1988-08-09

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Legal Events

Date Code Title Description
ST Notification of lapse