BR0013491A - Composição de molde em coquilha para fundição de precisão, método para formar um molde em coquilha, e, molde em coquiha - Google Patents

Composição de molde em coquilha para fundição de precisão, método para formar um molde em coquilha, e, molde em coquiha

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Publication number
BR0013491A
BR0013491A BR0013491-0A BR0013491A BR0013491A BR 0013491 A BR0013491 A BR 0013491A BR 0013491 A BR0013491 A BR 0013491A BR 0013491 A BR0013491 A BR 0013491A
Authority
BR
Brazil
Prior art keywords
die mold
composition
mold
shell
percent
Prior art date
Application number
BR0013491-0A
Other languages
English (en)
Inventor
Ming-Jong Peter Wang
Michael J Hendricks
Original Assignee
Dentsply Int Inc
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 Dentsply Int Inc filed Critical Dentsply Int Inc
Publication of BR0013491A publication Critical patent/BR0013491A/pt

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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C04B35/6316—Binders based on silicon compounds
    • 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
    • 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
    • B22C1/167—Mixtures of inorganic and organic binding agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
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    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Mold Materials And Core Materials (AREA)
  • Materials For Medical Uses (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Glanulating (AREA)
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Abstract

"COMPOSIçãO DE MOLDE EM COQUILHA PARA FUNDIçãO DE PRECISãO, MéTODO PARA FORMAR UM MOLDE EM COQUILHA, E, MOLDE EM COQUILHA". A invenção fornece uma composição que significativamente diminui o tempo necessário para produzir um molde em coquilha de cerâmica. A composição da invenção é usada para produzir um molde em coquilha para o processo de fundição de precisão, fomecer tempos de processamento diminuidos mediante a redução do número de imersões da coquilha e melhor manuseio e remoção de cera através de resistência verde aumentada. A invenção fornece um método de formar um molde em coquilha, compreendendo fornecer uma composição de molde em coquilha para fundição de precisão compreendendo 0,1 a 70 por cento em peso de fibras inorgânicas fornecer um padrão disponível, aplicar a dita composição ao dito padrão para formar um padrão revestido com aglutinante, aplicar o farelo refratário ao dito padrão revestido com aglutinante para formar um revestimento de padrão de aglutinante e farelo, a melhora em que a dita composição aglutinante compreende. A invenção fornece um método de formar um molde em coquilha, que compreende fornecer uma composição de molde em coquilha para fundição de precisão compreendendo uma composição aglutinante que compreende uma mistura de 20 a 98 por cento em peso de um sol coloidal compreendendo partículas inorgânicas, de 1 a 20 por cento em peso de polímero orgânico, fornecer um padrão disponível, aplicar a dita composição ao dito padrão para formar um padrão revestido com aglutinante, aplicar farelo refratário ao dito padrão revestido com aglutinante para formar um revestimento de padrão de aglutinante e de farelo, a melhora em que a composição aglutinante compreende de 0,1 a 70 por cento em peso de fibras inorgânicas.
BR0013491-0A 1999-08-25 2000-05-09 Composição de molde em coquilha para fundição de precisão, método para formar um molde em coquilha, e, molde em coquiha BR0013491A (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US15062699P 1999-08-25 1999-08-25
US15183299P 1999-09-01 1999-09-01
US52704700A 2000-03-16 2000-03-16
PCT/US2000/012571 WO2001014082A1 (en) 1999-08-25 2000-05-09 Shell mold binder composition and method

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BR0013491A true BR0013491A (pt) 2002-05-14

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BR0013491-0A BR0013491A (pt) 1999-08-25 2000-05-09 Composição de molde em coquilha para fundição de precisão, método para formar um molde em coquilha, e, molde em coquiha

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DE60010721T2 (de) 2004-10-07
ES2218160T3 (es) 2004-11-16
CA2376263C (en) 2009-01-13
US20050194118A1 (en) 2005-09-08
CN1250360C (zh) 2006-04-12
CA2376263A1 (en) 2001-03-01
DE60010721D1 (de) 2004-06-17
WO2001014082A1 (en) 2001-03-01
ATE266488T1 (de) 2004-05-15
JP2003507189A (ja) 2003-02-25
EP1207975B1 (en) 2004-05-12
EP1207975A1 (en) 2002-05-29
CN1371311A (zh) 2002-09-25

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