EP0347344A3 - Ceramic shell mold for investment casting and method of making the same - Google Patents

Ceramic shell mold for investment casting and method of making the same Download PDF

Info

Publication number
EP0347344A3
EP0347344A3 EP19890420208 EP89420208A EP0347344A3 EP 0347344 A3 EP0347344 A3 EP 0347344A3 EP 19890420208 EP19890420208 EP 19890420208 EP 89420208 A EP89420208 A EP 89420208A EP 0347344 A3 EP0347344 A3 EP 0347344A3
Authority
EP
European Patent Office
Prior art keywords
ceramic material
shell mold
ceramic
making
same
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.)
Granted
Application number
EP19890420208
Other languages
German (de)
French (fr)
Other versions
EP0347344B1 (en
EP0347344A2 (en
Inventor
Paul Randolph Johnson
Eliot Scott Lassow
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.)
Howmet Corp
Original Assignee
Howmet Corp
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 Howmet Corp filed Critical Howmet Corp
Publication of EP0347344A2 publication Critical patent/EP0347344A2/en
Publication of EP0347344A3 publication Critical patent/EP0347344A3/en
Application granted granted Critical
Publication of EP0347344B1 publication Critical patent/EP0347344B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B22C9/061—Materials which make up the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

A ceramic shell mold and method of making the same. The ceramic shell mold includes a facecoat layer comprised of a first ceramic material. A plurality of alternating layers are formed overlaying the facecoat layer. The alternating layers are comprised of a second ceramic material and a third ceramic material, the third ceramic material having thermophysical properties different than the second ceramic material. The second ceramic material and the third ceramic material are preferably a zircon-based material and an alumina-based material, respectively. The resultant ceramic shell mold has a greater high temperature creep resistance than a shell mold formed solely from the second ceramic material or solely from the third ceramic material.
EP19890420208 1988-06-13 1989-06-12 Ceramic shell mold for investment casting and method of making the same Expired - Lifetime EP0347344B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US205731 1980-11-10
US20573188A 1988-06-13 1988-06-13

Publications (3)

Publication Number Publication Date
EP0347344A2 EP0347344A2 (en) 1989-12-20
EP0347344A3 true EP0347344A3 (en) 1991-02-27
EP0347344B1 EP0347344B1 (en) 1994-06-08

Family

ID=22763405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890420208 Expired - Lifetime EP0347344B1 (en) 1988-06-13 1989-06-12 Ceramic shell mold for investment casting and method of making the same

Country Status (3)

Country Link
EP (1) EP0347344B1 (en)
JP (1) JPH0675744B2 (en)
DE (1) DE68915861T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225329B (en) * 1988-11-21 1992-03-18 Rolls Royce Plc Shell moulds for casting metals
GB9104728D0 (en) * 1991-03-06 1991-04-17 Ae Turbine Components Casting mould
EP0789109A1 (en) * 1996-02-06 1997-08-13 Scheuchzer S.A. Rail profiling machine
JP6055963B2 (en) * 2012-08-31 2017-01-11 株式会社Ｐｃｓジャパン Mold production method
DE102020108196B4 (en) 2020-03-25 2024-05-16 Technische Universität Bergakademie Freiberg Process for producing a ceramic, silicate-free investment casting mold for the production of investment castings from higher-melting metals and use of a ceramic, silicate-free investment casting mold for the production of investment castings from higher-melting metals

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040845A (en) * 1976-03-04 1977-08-09 The Garrett Corporation Ceramic composition and crucibles and molds formed therefrom
DE2716342A1 (en) * 1976-04-22 1977-11-03 United Technologies Corp BOWL SHAPE AND PROCESS FOR IMPROVING THE SURFACE CONDITION OF OBJECTS CASTED WITH THIS SHAPE
DE3015639A1 (en) * 1979-04-23 1980-11-06 United Technologies Corp MATERIAL AND MATERIAL RESISTANT TO REFLECTABLE MELT-LIQUID METAL AND METHOD FOR IMPROVING THIS RESISTANCE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040845A (en) * 1976-03-04 1977-08-09 The Garrett Corporation Ceramic composition and crucibles and molds formed therefrom
DE2716342A1 (en) * 1976-04-22 1977-11-03 United Technologies Corp BOWL SHAPE AND PROCESS FOR IMPROVING THE SURFACE CONDITION OF OBJECTS CASTED WITH THIS SHAPE
DE3015639A1 (en) * 1979-04-23 1980-11-06 United Technologies Corp MATERIAL AND MATERIAL RESISTANT TO REFLECTABLE MELT-LIQUID METAL AND METHOD FOR IMPROVING THIS RESISTANCE

Also Published As

Publication number Publication date
DE68915861T2 (en) 1995-01-19
EP0347344B1 (en) 1994-06-08
JPH02112848A (en) 1990-04-25
EP0347344A2 (en) 1989-12-20
JPH0675744B2 (en) 1994-09-28
DE68915861D1 (en) 1994-07-14

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