WO2004014580A3 - Improved investment casting process - Google Patents

Improved investment casting process Download PDF

Info

Publication number
WO2004014580A3
WO2004014580A3 PCT/GB2003/003459 GB0303459W WO2004014580A3 WO 2004014580 A3 WO2004014580 A3 WO 2004014580A3 GB 0303459 W GB0303459 W GB 0303459W WO 2004014580 A3 WO2004014580 A3 WO 2004014580A3
Authority
WO
WIPO (PCT)
Prior art keywords
coating layer
shell mould
casting process
iii
investment casting
Prior art date
Application number
PCT/GB2003/003459
Other languages
French (fr)
Other versions
WO2004014580A2 (en
Inventor
Samantha Jones
Original Assignee
Univ Birmingham
Samantha Jones
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 Univ Birmingham, Samantha Jones filed Critical Univ Birmingham
Priority to AU2003255760A priority Critical patent/AU2003255760B2/en
Priority to US10/523,855 priority patent/US7594529B2/en
Priority to MXPA05001489A priority patent/MXPA05001489A/en
Priority to JP2004527039A priority patent/JP4381981B2/en
Priority to EP03784272A priority patent/EP1575721A2/en
Publication of WO2004014580A2 publication Critical patent/WO2004014580A2/en
Publication of WO2004014580A3 publication Critical patent/WO2004014580A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks

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)

Abstract

The present invention provides a method for production of a shell mould. The method comprises the sequential steps of:- (i) dipping a preformed expendable pattern into a slurry of refractory particles and colloidal liquid binder whereby to form a coating layer on said pattern, (ii) depositing particles of refractory material onto said coating, and (iii) drying, steps (i) and (iii) being repeated as often as required to produce a shell mould having a primary coating layer and at least one secondary coating layer, characterised in that during at least one performance of step (ii) a gel-forming material is also deposited onto the coating layer formed in step (i). The invention also relates to a shell mould producible by the method.
PCT/GB2003/003459 2002-08-08 2003-08-08 Improved investment casting process WO2004014580A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2003255760A AU2003255760B2 (en) 2002-08-08 2003-08-08 Improved investment casting process
US10/523,855 US7594529B2 (en) 2002-08-08 2003-08-08 Investment casting process
MXPA05001489A MXPA05001489A (en) 2002-08-08 2003-08-08 Improved investment casting process.
JP2004527039A JP4381981B2 (en) 2002-08-08 2003-08-08 Improved investment casting
EP03784272A EP1575721A2 (en) 2002-08-08 2003-08-08 Improved investment casting process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0218382.0A GB0218382D0 (en) 2002-08-08 2002-08-08 Improved investment casting process
GB0218382.0 2002-08-08

Publications (2)

Publication Number Publication Date
WO2004014580A2 WO2004014580A2 (en) 2004-02-19
WO2004014580A3 true WO2004014580A3 (en) 2005-09-22

Family

ID=9941924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/003459 WO2004014580A2 (en) 2002-08-08 2003-08-08 Improved investment casting process

Country Status (9)

Country Link
US (1) US7594529B2 (en)
EP (1) EP1575721A2 (en)
JP (1) JP4381981B2 (en)
KR (1) KR101011044B1 (en)
CN (1) CN100415410C (en)
AU (1) AU2003255760B2 (en)
GB (1) GB0218382D0 (en)
MX (1) MXPA05001489A (en)
WO (1) WO2004014580A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007008828A2 (en) * 2005-07-08 2007-01-18 Sky+, Ltd. Method for casting reactive metals and casting containers associated therewith
US20080135721A1 (en) * 2006-12-06 2008-06-12 General Electric Company Casting compositions for manufacturing metal casting and methods of manufacturing thereof
JP2008183566A (en) * 2007-01-26 2008-08-14 General Electric Co <Ge> Ceramic mold for manufacturing metal casting, and its manufacturing method
US8006744B2 (en) * 2007-09-18 2011-08-30 Sturm, Ruger & Company, Inc. Method and system for drying casting molds
EP2844839A1 (en) 2012-04-23 2015-03-11 General Electric Company Turbine airfoil with local wall thickness control
CN104289662A (en) * 2012-10-22 2015-01-21 宁波吉威熔模铸造有限公司 Casting method of round part of automobile spare tire lifter
CN104325077A (en) * 2012-10-22 2015-02-04 宁波吉威熔模铸造有限公司 Casting method of vehicle engine piston
CN103506564A (en) * 2013-09-28 2014-01-15 无锡阳工机械制造有限公司 High aluminum powder casting coating
GB202107433D0 (en) * 2021-05-25 2021-07-07 Hatton Designs Of London Ltd Improving green strength of ceramic shell

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754946A (en) * 1971-06-01 1973-08-28 Du Pont Refractory laminate based on negative sols or silicates and non polymeric organic cationic nitrogen containing compounds
US3894572A (en) * 1971-06-01 1975-07-15 Du Pont Process for forming a refractory laminate based on positive sols and refractory materials containing chemical setting agents

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616840A (en) * 1969-01-08 1971-11-02 Adam Dunlop Method of making multilayer shell molds
US4204872A (en) * 1974-07-18 1980-05-27 Stauffer Chemical Company Preparation of high temperature shell molds
JPS629739A (en) * 1985-07-05 1987-01-17 Nissan Chem Ind Ltd Binder for manufacturing precision casting mold
US5310420A (en) * 1992-09-21 1994-05-10 Precision Metalsmiths, Inc. Refractory containing investment material and method of making
US5811476A (en) * 1996-10-04 1998-09-22 Solomon; Paul Aqueous gel-filled thermoplastic pattern-forming compositions and related methods
TWI235740B (en) * 1998-02-11 2005-07-11 Buntrock Ind Inc Improved investment casting mold and method of manufacture
GB0031009D0 (en) * 2000-12-20 2001-01-31 Robson Brian Ceramic core and/or mould for metal casting

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754946A (en) * 1971-06-01 1973-08-28 Du Pont Refractory laminate based on negative sols or silicates and non polymeric organic cationic nitrogen containing compounds
US3894572A (en) * 1971-06-01 1975-07-15 Du Pont Process for forming a refractory laminate based on positive sols and refractory materials containing chemical setting agents

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DOOTZ E R ET AL: "SIMPLIFICATION OF THE CHROME-COBALT PARTIAL DENTURE CASTING PROCEDURE", JOURNAL OF PROSTHETIC DENTISTRY, vol. 17, no. 5, May 1967 (1967-05-01), pages 464 - 771, XP008036947, ISSN: 0022-3913 *
See also references of EP1575721A2 *

Also Published As

Publication number Publication date
KR20050060063A (en) 2005-06-21
AU2003255760B2 (en) 2009-02-19
JP2006504530A (en) 2006-02-09
JP4381981B2 (en) 2009-12-09
CN100415410C (en) 2008-09-03
GB0218382D0 (en) 2002-09-18
US20060108093A1 (en) 2006-05-25
WO2004014580A2 (en) 2004-02-19
MXPA05001489A (en) 2005-08-16
EP1575721A2 (en) 2005-09-21
KR101011044B1 (en) 2011-01-25
US7594529B2 (en) 2009-09-29
AU2003255760A1 (en) 2004-02-25
CN1809433A (en) 2006-07-26

Similar Documents

Publication Publication Date Title
IL177306A0 (en) Improved investment casting process
WO2006085995A3 (en) Method of producing metal article having internal passage coated with a ceramic coating
WO2006027593A3 (en) Gelcasting of a ceramic catalyst carrier
WO2004014580A3 (en) Improved investment casting process
CA2376263A1 (en) Shell mold binder composition and method
CN101041175A (en) Methods and materials for attaching casting cores
WO2003027348A3 (en) Self-cleaning ceramic layers for baking ovens and method for production of self-cleaning ceramic layers
AU5900498A (en) Method of treating metal components
WO2005116286A3 (en) Method for forming a hardened surface on a substrate
EP1772210A3 (en) Methods for making ceramic casting cores and cores
JP2005324253A (en) Lost-wax casting method
EP1375030A3 (en) Reinforced shell mold and method
GB2148760A (en) Casting metal in a sand backed shell mould
JPS61202744A (en) Lost wax mold for casting
WO2003027960A3 (en) Method and system for manufacturing a three-dimensional object
JPS61137646A (en) Manufacture of casting mold
JPH07172962A (en) Production of metal-inlaid ceramic tile
JPS55106657A (en) Forming method of mold for precision casting
JPH03106553A (en) Manufacture of hollow member having heat insulating ceramic covering layer on inside surface
JPS589740A (en) Mold coating method into multiple layers
RU2055678C1 (en) Method of making laminate shell ceramic molds with use of disposable patterns
WO2003001521A3 (en) Method for the production of an optical disk matrix
CN1077817C (en) Technology for producing perforated plate spare components such as pouring basket lid etc. using waste molten steel
JPH0818106B2 (en) Water-soluble core for high pressure die casting
CN111085662A (en) Refractory sand spraying process for surface of casting module

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1020057002226

Country of ref document: KR

Ref document number: 2004527039

Country of ref document: JP

Ref document number: PA/a/2005/001489

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 2003784272

Country of ref document: EP

Ref document number: 2003255760

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 212/KOLNP/2005

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 20038232855

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 1020057002226

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2003784272

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2006108093

Country of ref document: US

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 10523855

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 10523855

Country of ref document: US