DE3861134D1 - Kordierit-koerper mit honigwaben-struktur und ein verfahren zur herstellung desselben. - Google Patents

Kordierit-koerper mit honigwaben-struktur und ein verfahren zur herstellung desselben.

Info

Publication number
DE3861134D1
DE3861134D1 DE8888301120T DE3861134T DE3861134D1 DE 3861134 D1 DE3861134 D1 DE 3861134D1 DE 8888301120 T DE8888301120 T DE 8888301120T DE 3861134 T DE3861134 T DE 3861134T DE 3861134 D1 DE3861134 D1 DE 3861134D1
Authority
DE
Germany
Prior art keywords
producing
same
honeycomb structure
cordierite body
cordierite
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 - Lifetime
Application number
DE8888301120T
Other languages
English (en)
Inventor
Takashi Harada
Toshiyuki Hamanaka
Kunikazu Hamaguchi
Seiichi Asami
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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
Priority claimed from JP62283128A external-priority patent/JPS644249A/ja
Priority claimed from JP62283127A external-priority patent/JPS643067A/ja
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Application granted granted Critical
Publication of DE3861134D1 publication Critical patent/DE3861134D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0006Honeycomb structures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/14Silica and magnesia
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16Shaped 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 silicates other than clay
    • C04B35/18Shaped 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 silicates other than clay rich in aluminium oxide
    • C04B35/195Alkaline earth aluminosilicates, e.g. cordierite or anorthite
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149Honeycomb-like
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24744Longitudinal or transverse tubular cavity or cell

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Compositions Of Oxide Ceramics (AREA)
DE8888301120T 1987-02-12 1988-02-10 Kordierit-koerper mit honigwaben-struktur und ein verfahren zur herstellung desselben. Expired - Lifetime DE3861134D1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2836487 1987-02-12
JP2836687 1987-02-12
JP62283128A JPS644249A (en) 1987-02-12 1987-11-11 Cordierite honeycomb construction catalyst support and its production
JP62283127A JPS643067A (en) 1987-02-12 1987-11-11 Cordierite honeycomb structure and production thereof

Publications (1)

Publication Number Publication Date
DE3861134D1 true DE3861134D1 (de) 1991-01-10

Family

ID=27458862

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888301120T Expired - Lifetime DE3861134D1 (de) 1987-02-12 1988-02-10 Kordierit-koerper mit honigwaben-struktur und ein verfahren zur herstellung desselben.

Country Status (3)

Country Link
US (1) US4869944A (de)
EP (1) EP0278749B1 (de)
DE (1) DE3861134D1 (de)

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2581774B2 (ja) * 1988-07-28 1997-02-12 日本碍子株式会社 セラミックハニカム構造体およびその製造法
US5149475A (en) * 1988-07-28 1992-09-22 Ngk Insulators, Ltd. Method of producing a honeycomb structure
JPH0243955A (ja) * 1988-08-02 1990-02-14 Ngk Insulators Ltd ハニカム構造体およびその製造法
JP2578176B2 (ja) * 1988-08-12 1997-02-05 日本碍子株式会社 多孔質セラミックハニカムフィルターおよびその製法
US5145539A (en) * 1988-09-22 1992-09-08 Ngk Insulators, Inc. Method of producing a honeycomb structural body having at least one step protruded from or recessed in at least one portion of an outer circumferential surface thereof
JPH074534B2 (ja) * 1988-09-22 1995-01-25 日本碍子株式会社 ハニカム構造体およびその製造法
EP0391321A3 (de) * 1989-04-07 1991-01-16 Asahi Glass Company Ltd. Keramisches Filter für staubhaltige Gase und Verfahren zu seiner Herstellung
FR2645673B1 (fr) * 1989-04-10 1994-04-08 Sgn Bougie filtrante sans amiante pour la filtration de gaz chauds radioactifs
US5564067A (en) * 1989-07-05 1996-10-08 Alabama Cryogenic Engineering, Inc. Controlled-porosity trapping plugs for space cryogen system phase separators
JPH0738930B2 (ja) * 1990-03-30 1995-05-01 日本碍子株式会社 多孔質セラミックフィルタの製法
US5168092A (en) * 1990-04-30 1992-12-01 E. I. Du Pont De Nemours And Company Catalyst coated thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum
US5079064A (en) * 1990-04-30 1992-01-07 E. I. Du Pont De Nemours And Company Thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum
US5370920A (en) * 1990-04-30 1994-12-06 E. I. Du Pont De Nemours And Company Process for producing catalyst coated thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum
JPH0751459B2 (ja) * 1991-05-17 1995-06-05 日本碍子株式会社 コージェライト質ハニカム構造体の製造法
US5258150A (en) * 1991-12-06 1993-11-02 Corning Incorporated Fabrication of low thermal expansion, high porosity cordierite body
US5296423A (en) * 1992-01-03 1994-03-22 Corning Incorporated Cordierite substrates
US5275771A (en) * 1992-01-03 1994-01-04 Corning Incorporated Expansion reduction of cordierite
US5629067A (en) * 1992-01-30 1997-05-13 Ngk Insulators, Ltd. Ceramic honeycomb structure with grooves and outer coating, process of producing the same, and coating material used in the honeycomb structure
DE4339167B4 (de) * 1992-11-20 2006-09-14 Corning Inc. Verfahren zur Herstellung von Cordieritkörpern
US5409870A (en) * 1992-11-20 1995-04-25 Corning Incorporated Modified cordierite precursors
US5332703A (en) * 1993-03-04 1994-07-26 Corning Incorporated Batch compositions for cordierite ceramics
JP2938740B2 (ja) * 1993-12-14 1999-08-25 日本碍子株式会社 コージェライト質セラミックフィルタとその製造方法
JP2726616B2 (ja) * 1993-12-15 1998-03-11 日本碍子株式会社 多孔質セラミックハニカムフィルタ
JP2981107B2 (ja) * 1994-03-07 1999-11-22 日本碍子株式会社 コージェライトハニカムセラミックスの製造方法
JP3288536B2 (ja) * 1994-06-21 2002-06-04 日本碍子株式会社 排ガスフィルタおよびそれを使用した排ガス処理装置
US5849391A (en) * 1994-08-26 1998-12-15 Nippondenco Co., Ltd. Cordierite honeycomb structure and process for producing the same
US6045628A (en) * 1996-04-30 2000-04-04 American Scientific Materials Technologies, L.P. Thin-walled monolithic metal oxide structures made from metals, and methods for manufacturing such structures
US5814164A (en) 1994-11-09 1998-09-29 American Scientific Materials Technologies L.P. Thin-walled, monolithic iron oxide structures made from steels, and methods for manufacturing such structures
JP3806975B2 (ja) * 1995-07-12 2006-08-09 株式会社デンソー ハニカム構造体の製造方法
JPH09262484A (ja) * 1996-03-29 1997-10-07 Ngk Insulators Ltd 高耐熱衝撃性セラミックハニカム触媒
JP3789579B2 (ja) * 1996-12-19 2006-06-28 株式会社日本自動車部品総合研究所 コーディエライトハニカム構造体およびその製造方法
JP4220584B2 (ja) * 1997-06-06 2009-02-04 三菱重工業株式会社 ハニカム型触媒の製造方法
EP0894776B1 (de) * 1997-07-28 2003-09-10 Corning Incorporated Verfahren zur Herstellung von Cordierit-Körpern mittels Schnellbrand
CN1210835A (zh) * 1997-07-28 1999-03-17 康宁股份有限公司 烧成时间显著缩短的堇青石物体的制备方法
JP3150928B2 (ja) * 1997-08-29 2001-03-26 日本碍子株式会社 薄壁コージェライト質ハニカム構造体の製造方法
US6077796A (en) * 1997-12-02 2000-06-20 Corning Incorporated Low CTE-low porosity cordierite bodies and method of making same
EP1042251B1 (de) 1997-12-02 2009-04-08 Corning Incorporated Verfahren zur herstellung honigwabenkörper aus cordierit niedriger expansion
WO1999043629A1 (en) * 1998-02-25 1999-09-02 Corning Incorporated Low cte cordierite bodies with narrow pore size distribution and method of making same
US6087281A (en) * 1998-02-25 2000-07-11 Corning Incorporated Low CTE cordierite bodies with narrow pore size distribution and method of making same
DE19828491A1 (de) * 1998-06-26 1999-12-30 Degussa Formkörper auf Basis von Siliciumdioxid
ATE232511T1 (de) 1998-08-05 2003-02-15 Corning Inc Cordieritstrukturen
US5996243A (en) * 1998-09-18 1999-12-07 Chang; Chih-Chang Hair dryer
JP4453117B2 (ja) * 1998-09-29 2010-04-21 株式会社デンソー 六角ハニカム構造体の製造方法
EP1133457B1 (de) 1998-11-20 2016-04-06 Corning Incorporated Verfahren zur herstellung von porösen cordieritstrukturen mit niedriger thermischer ausdehnung und hoher stärke
DE69927052T2 (de) * 1998-12-07 2006-06-29 Corning Inc. Herstellung von codierit-strukturen mit sehr kleinem thermischen expansionskoeffizienten
US6461562B1 (en) 1999-02-17 2002-10-08 American Scientific Materials Technologies, Lp Methods of making sintered metal oxide articles
BR0001560B1 (pt) * 1999-04-09 2010-04-06 processo para produzir um corpo cerámico-catalisador, e, corpo cerámico-catalisador.
TR200103579T2 (tr) * 1999-06-11 2002-04-22 Corning Incorporated Düşük genleşmeli, yüksek gözenekli, yüksek mukavemetli kordierit cisimler ve bunların yapılış yöntemi.
AU779487B2 (en) 1999-08-17 2005-01-27 Battelle Memorial Institute Chemical reactor and method for catalytic gas phase reactions
WO2001016049A1 (en) 1999-09-01 2001-03-08 Corning Incorporated Fabrication of ultra-thinwall cordierite structures
US6206944B1 (en) * 1999-10-15 2001-03-27 Corning Incorporated Low aspect ratio diesel exhaust filter
JP3862458B2 (ja) * 1999-11-15 2006-12-27 日本碍子株式会社 ハニカム構造体
WO2001077043A1 (en) * 2000-04-07 2001-10-18 Ngk Insulators, Ltd. Method for manufacturing cordierite ceramic honeycomb
CA2399763C (en) * 2000-04-07 2007-03-13 Ngk Insulators, Ltd. Low thermal expansion cordierite ceramic honeycomb and method of producing the same
DE10024038A1 (de) * 2000-05-13 2001-11-22 Dmc2 Degussa Metals Catalysts Wabenkörper aus einem keramischen Material mit verbesserter radialer Druckfestigkeit
BR0110263A (pt) * 2000-06-01 2003-03-05 Corning Inc Corpo de cordierita
US20020077248A1 (en) * 2000-09-29 2002-06-20 Tomohiko Nakanishi Ceramic carrier and ceramic catalyst body
WO2002066370A2 (en) * 2001-02-16 2002-08-29 Battelle Memorial Institute Reforming catalysts and methods of alcohol steam reforming
JP4030320B2 (ja) * 2001-03-22 2008-01-09 株式会社デンソー セラミック体およびセラミック触媒体
US6605557B2 (en) * 2001-05-04 2003-08-12 Saint-Gobain Norpro Corporation Halogen-resistant media
US7470648B2 (en) 2002-02-13 2008-12-30 Battelle Memorial Institute Reforming catalysts
US20040152593A1 (en) * 2003-01-30 2004-08-05 Cutler Willard A. Catalyst support
US8277773B2 (en) 2004-02-13 2012-10-02 Velocys Corp. Steam reforming method
US7722854B2 (en) 2003-06-25 2010-05-25 Velocy's Steam reforming methods and catalysts
US7723250B2 (en) * 2004-03-24 2010-05-25 Ngk Insulators, Ltd. Ceramic porous body and method for producing molded body
WO2006006667A1 (ja) * 2004-07-14 2006-01-19 Ngk Insulators, Ltd. 多孔質ハニカム構造体の製造方法
JP4434050B2 (ja) * 2005-03-17 2010-03-17 日本碍子株式会社 ハニカム構造体の製造方法
WO2006137155A1 (ja) 2005-06-24 2006-12-28 Ibiden Co., Ltd. ハニカム構造体
JP5091672B2 (ja) 2005-06-24 2012-12-05 イビデン株式会社 ハニカム構造体及びその製造方法
CN100537482C (zh) 2005-06-24 2009-09-09 揖斐电株式会社 蜂窝结构体
CN101006024B (zh) 2005-06-24 2010-05-05 揖斐电株式会社 蜂窝结构体
WO2006137157A1 (ja) 2005-06-24 2006-12-28 Ibiden Co., Ltd. ハニカム構造体
WO2006137161A1 (ja) 2005-06-24 2006-12-28 Ibiden Co., Ltd. ハニカム構造体
US8038759B2 (en) * 2005-11-16 2011-10-18 Geoz Technologies, Inc. Fibrous cordierite materials
US7744980B2 (en) * 2005-12-20 2010-06-29 Corning Incorporated Low CTE cordierite honeycomb article and method of manufacturing same
US7614304B2 (en) 2006-05-16 2009-11-10 Corning Incorporated Ultrasonic testing system and method for ceramic honeycomb structures
US20070266547A1 (en) * 2006-05-16 2007-11-22 Zhiqiang Shi Pulse echo ultrasonic testing method for ceramic honeycomb structures
US8499633B2 (en) * 2006-05-16 2013-08-06 Corning Incorporated Non-contact ultrasonic testing method and device for ceramic honeycomb structures
CN101438150B (zh) * 2006-05-16 2012-06-27 康宁股份有限公司 用于陶瓷蜂窝式结构的超声测试方法和设备
US7964262B2 (en) * 2006-08-29 2011-06-21 Corning Incorporated Layered silicate modified cordierite and method
JP5010221B2 (ja) * 2006-09-11 2012-08-29 株式会社デンソー セラミック触媒体
JP2009067628A (ja) * 2007-09-13 2009-04-02 Ngk Insulators Ltd ハニカム構造体
JP5478025B2 (ja) * 2008-03-21 2014-04-23 日本碍子株式会社 コーディエライトセラミックスおよびその製造方法
JP5128989B2 (ja) * 2008-03-25 2013-01-23 日本碍子株式会社 コーディエライトセラミックスの製造方法
JP4571990B2 (ja) * 2008-03-31 2010-10-27 日本碍子株式会社 ハニカム構造体の製造方法
US20090297764A1 (en) * 2008-05-30 2009-12-03 Douglas Munroe Beall Stablized Low-Microcracked Ceramic Honeycombs And Methods Thereof
JP4798813B1 (ja) * 2010-03-24 2011-10-19 日本碍子株式会社 粒子状物質の検出方法
WO2011149744A1 (en) * 2010-05-25 2011-12-01 Corning Incorporated Cordierite membrane on a cordierite monolith
JP5808619B2 (ja) * 2011-09-06 2015-11-10 日本碍子株式会社 ハニカム構造体、及びハニカム触媒体
CN102787884A (zh) * 2012-07-03 2012-11-21 宜兴王子制陶有限公司 一种碳烟过滤器的封孔方法
JP6279504B2 (ja) * 2015-03-25 2018-02-14 日本碍子株式会社 ハニカム構造体の製造方法
CN110642613B (zh) * 2019-10-12 2021-10-29 江苏省宜兴非金属化工机械厂有限公司 一种耐热冲击性优异的堇青石质蜂窝陶瓷载体及其制备方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885977A (en) * 1973-11-05 1975-05-27 Corning Glass Works Anisotropic cordierite monolith
US3950175A (en) * 1973-11-05 1976-04-13 Corning Glass Works Pore size control in cordierite ceramic
US3958058A (en) * 1974-07-29 1976-05-18 Corning Glass Works Ultra-low expansion ceramic articles
JPS602270B2 (ja) * 1976-04-08 1985-01-21 日本碍子株式会社 コージエライト系セラミツクハニカムおよびその製法
JPS5382822A (en) * 1976-12-28 1978-07-21 Ngk Insulators Ltd Cordierite ceramics
JPS581630B2 (ja) * 1977-03-12 1983-01-12 日本碍子株式会社 耐熱衝撃性セラミツクハニカム構造体
US4268311A (en) * 1979-11-01 1981-05-19 Anchor Hocking Corporation High strength cordierite ceramic
JPS5792574A (en) * 1980-11-28 1982-06-09 Nippon Denso Co Manufacture of cordierite ceramics
JPS6035312B2 (ja) * 1982-01-14 1985-08-14 工業技術院長 低膨脹性コ−デイエライトセラミツクスの製造法
JPS5992943A (ja) * 1982-11-15 1984-05-29 Ngk Spark Plug Co Ltd 結晶化ガラス体
US4489774A (en) * 1983-10-11 1984-12-25 Ngk Insulators, Ltd. Rotary cordierite heat regenerator highly gas-tight and method of producing the same
US4722916A (en) * 1985-05-14 1988-02-02 Ngk Insulators, Ltd. Low expansion ceramics and method of producing the same
US4772580A (en) * 1985-12-27 1988-09-20 Ngk Insulators, Ltd. Catalyst carrier of cordierite honeycomb structure and method of producing the same

Also Published As

Publication number Publication date
US4869944A (en) 1989-09-26
EP0278749A1 (de) 1988-08-17
EP0278749B1 (de) 1990-11-28

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