ATE110616T1 - Verfahren zum mischen und extrudieren von keramischem material. - Google Patents

Verfahren zum mischen und extrudieren von keramischem material.

Info

Publication number
ATE110616T1
ATE110616T1 AT85301120T AT85301120T ATE110616T1 AT E110616 T1 ATE110616 T1 AT E110616T1 AT 85301120 T AT85301120 T AT 85301120T AT 85301120 T AT85301120 T AT 85301120T AT E110616 T1 ATE110616 T1 AT E110616T1
Authority
AT
Austria
Prior art keywords
extrusion
mixing
centipoises
cordierite
ceramic material
Prior art date
Application number
AT85301120T
Other languages
English (en)
Inventor
Robert William Gardner
Merrill Lynn
Donald Lloyd Guile
Original Assignee
Corning Glass Works
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24419347&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE110616(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Corning Glass Works filed Critical Corning Glass Works
Application granted granted Critical
Publication of ATE110616T1 publication Critical patent/ATE110616T1/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0006—Honeycomb structures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • C04B35/6365—Cellulose or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0058—Liquid or visquous
    • B29K2105/0061—Gel or sol
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2503/00—Use of resin-bonded materials as filler
    • B29K2503/04—Inorganic materials
    • B29K2503/08—Mineral aggregates, e.g. sand, clay or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/02—Ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/14—Filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/608—Honeycomb structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Catalysts (AREA)
AT85301120T 1984-04-26 1985-02-20 Verfahren zum mischen und extrudieren von keramischem material. ATE110616T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/604,374 US4551295A (en) 1984-04-26 1984-04-26 Process for mixing and extruding ceramic materials

Publications (1)

Publication Number Publication Date
ATE110616T1 true ATE110616T1 (de) 1994-09-15

Family

ID=24419347

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85301120T ATE110616T1 (de) 1984-04-26 1985-02-20 Verfahren zum mischen und extrudieren von keramischem material.

Country Status (8)

Country Link
US (1) US4551295A (de)
EP (1) EP0165651B1 (de)
JP (1) JPH0635126B2 (de)
KR (1) KR930006206B1 (de)
AT (1) ATE110616T1 (de)
AU (1) AU565606B2 (de)
CA (1) CA1260234A (de)
DE (1) DE3587916T2 (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8709598D0 (en) * 1987-04-23 1987-05-28 Ici Plc Article of ceramic material
US5248464A (en) * 1987-04-23 1993-09-28 Imperial Chemical Industries Plc Article of ceramic material and production thereof
US4868142A (en) * 1987-12-16 1989-09-19 Stemcor Corporation Method of manufacturing a molten metal-resistant ceramic fiber composition
CA1324882C (en) * 1988-09-20 1993-12-07 Michiko Kawakami Porous ceramic sinter and process for producing same
JPH0643048B2 (ja) * 1989-03-27 1994-06-08 日本碍子株式会社 セラミック押出法およびそれに用いる装置
US4973566A (en) * 1989-05-16 1990-11-27 Coors Ceramics Company Cordierite material useful in a heat source retainer and process for making the same
CA2020453A1 (en) * 1989-07-28 1991-01-29 Bulent O. Yavuz Thermal shock and creep resistant porous mullite articles
US5281462A (en) * 1989-11-01 1994-01-25 Corning Incorporated Material, structure, filter and catalytic converter
US5316577A (en) * 1992-02-03 1994-05-31 Corning Incorporated Plastically deformable metallic mixtures and their use
US5344799A (en) * 1992-12-14 1994-09-06 Corning Incorporated Formable ceramic compositions and method of use therefor
JP3415188B2 (ja) * 1993-03-26 2003-06-09 日本碍子株式会社 セラミックス構造体用坏土
US5458834A (en) * 1993-10-07 1995-10-17 Corning Incorporated Extrusion of low viscosity batch
GB2285407A (en) * 1993-12-14 1995-07-12 Kobe Steel Ltd Apparatus for molding fibrous material containing waste paper
US5811048A (en) * 1996-06-17 1998-09-22 Corning Incorporated Process of and apparatus for homogenizing a flow stream
JP3074169B1 (ja) * 1999-03-29 2000-08-07 日本碍子株式会社 コージェライト質セラミックハニカム構造体の製造方法
AU2001230601A1 (en) 2000-02-18 2001-08-27 Ngk Insulators, Ltd. Method for producing ceramic structure
US6375450B1 (en) * 2000-03-17 2002-04-23 Corning Incorporated Extrusion apparatus for ceramic honeycomb articles
JP2002283326A (ja) * 2001-03-28 2002-10-03 Ngk Insulators Ltd ハニカム構造体成形装置及び成形方法
US20040194505A1 (en) * 2003-04-01 2004-10-07 Ji Wang Method of making a photonic crystal preform
US7276194B2 (en) * 2003-08-29 2007-10-02 Corning Incorporated Method and apparatus for extruding a ceramic material
US7940179B2 (en) * 2005-01-12 2011-05-10 British Telecommunications Public Limited Company Radio frequency identification tag security systems
EP1857421B1 (de) * 2005-02-14 2016-12-21 Shin-Etsu Quartz Products Co., Ltd. Herstellungsverfahren für ein kieselsäure-glas-produkt
US8261449B2 (en) * 2006-07-04 2012-09-11 Ngk Insulators, Ltd. Manufacturing method of plugged honeycomb structure
CN101541708A (zh) * 2006-11-29 2009-09-23 康宁股份有限公司 增塑的混合物和硬化的方法
US9174879B2 (en) * 2007-11-30 2015-11-03 Corning Incorporated Ceramic precursor batch composition and method of increasing ceramic precursor batch extrusion rate
US20090218711A1 (en) * 2008-02-28 2009-09-03 David Dasher Method of increasing ceramic paste stiffening/gelation temperature by using a salt and precursor batch
US8808601B2 (en) * 2008-05-30 2014-08-19 Corning Incorporated Method for manufacturing ceramic filter
WO2009153617A1 (en) * 2008-06-19 2009-12-23 Dow Wolff Cellulosics Gmbh Additives comprising cellulose ethers for ceramics extrusion
US20100127419A1 (en) * 2008-11-24 2010-05-27 Christopher John Malarkey Ceramic honeycomb extrusion method and apparatus
US20100217424A1 (en) * 2009-02-26 2010-08-26 Andrew Charles Gorges Ceramic contamination control processes
KR20120102079A (ko) * 2009-12-16 2012-09-17 라이온델 케미칼 테크놀로지, 엘.피. 티타니아-함유 압출물
JP5819941B2 (ja) 2010-04-26 2015-11-24 ダウ グローバル テクノロジーズ エルエルシー 押出成形体用の組成物
EP2563564B1 (de) 2010-04-26 2016-11-02 Dow Global Technologies LLC Zusammensetzung für stranggepresste körper
WO2012051034A1 (en) 2010-10-12 2012-04-19 Dow Global Technologies Llc Novel cellulose ethers and their use
EP2637836B1 (de) 2010-11-08 2017-09-13 Dow Global Technologies LLC Methylcellulose enthaltende zusammensetzung für stranggepresste körper
JP5476331B2 (ja) * 2011-03-31 2014-04-23 日本碍子株式会社 ハニカム構造体の製造方法
MX373836B (es) 2012-02-10 2020-03-25 Nutrition & Biosciences Usa 1 Llc Composición para cuerpos cerámicos moldeados por extrusión que comprende un derivado de celulosa de determinado largo medio de partícula.
JP6118001B2 (ja) * 2014-01-16 2017-04-19 ダウ グローバル テクノロジーズ エルエルシー ヒドロキシプロピルメチルセルロースを含む熱成形可能なセラミック組成物
KR101993783B1 (ko) 2016-01-20 2019-06-28 주식회사 엘지화학 카본나노튜브 펠렛 제조장치
RU2693454C1 (ru) * 2018-12-20 2019-07-03 Федеральное государственное бюджетное учреждение науки "Федеральный исследовательский центр "Институт катализа им. Г.К. Борескова Сибирского отделения Российской академии наук" (ИК СО РАН, Институт катализа СО РАН) Каталитический элемент для гетерогенных высокотемпературных реакций

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT173863B (de) * 1951-01-03 1953-02-10 Chem Fab Griesheim Verfahren und Vorrichtung zur Herstellung von grünen, durch Erhitzen in den endgültigen Zustand überzuführenden Kohleformkörpern
US3917782A (en) * 1973-05-16 1975-11-04 Us Energy Method for preparing thin-walled ceramic articles of configuration
JPS5733898B2 (de) * 1973-05-17 1982-07-20
DE2413534A1 (de) * 1974-03-21 1975-10-02 Heinz Rottner Strangpresse fuer hochviskose stoffe, insbesondere keramische massen
GB2034591B (en) * 1978-11-07 1983-03-30 Pimi Spa Compacting device for particulate material
JPS55100269A (en) * 1979-01-25 1980-07-31 Ngk Insulators Ltd Production of cordierite type ceramic honeycomb structure
JPS5792574A (en) * 1980-11-28 1982-06-09 Nippon Denso Co Manufacture of cordierite ceramics
US4411856A (en) * 1981-07-15 1983-10-25 Corning Glass Works Method and apparatus for high speed manifolding of honeycomb structures
US4432918A (en) * 1981-08-24 1984-02-21 Corning Glass Works Methods for fabricating selectively plugged honeycomb structures
US4428758A (en) * 1982-02-22 1984-01-31 Corning Glass Works Solid particulate filters

Also Published As

Publication number Publication date
DE3587916D1 (de) 1994-10-06
AU4140085A (en) 1985-10-31
KR930006206B1 (ko) 1993-07-09
JPS60239207A (ja) 1985-11-28
AU565606B2 (en) 1987-09-24
EP0165651A2 (de) 1985-12-27
EP0165651B1 (de) 1994-08-31
CA1260234A (en) 1989-09-26
EP0165651A3 (en) 1987-09-09
DE3587916T2 (de) 1995-04-27
JPH0635126B2 (ja) 1994-05-11
KR850007238A (ko) 1985-12-02
US4551295A (en) 1985-11-05

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