DK2845843T3 - Fremgangsmåde til fremstilling af lette, keramiske materialer - Google Patents

Fremgangsmåde til fremstilling af lette, keramiske materialer Download PDF

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Publication number
DK2845843T3
DK2845843T3 DK14196058.3T DK14196058T DK2845843T3 DK 2845843 T3 DK2845843 T3 DK 2845843T3 DK 14196058 T DK14196058 T DK 14196058T DK 2845843 T3 DK2845843 T3 DK 2845843T3
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procedure
manufacture
easy
ceramic materials
ceramic
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DK14196058.3T
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English (en)
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Rymon Lipinski Tadeusz Von
Bruno Keller
Ruth Kernke
Dirk Poppe
Frank Beissmann
Peter Neugebauer
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Evonik Roehm Gmbh
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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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62625—Wet mixtures
    • C04B35/6263—Wet mixtures characterised by their solids loadings, i.e. the percentage of solids
    • 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
    • C04B35/634—Polymers
    • 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
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/0605—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances by sublimating
    • 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
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063—Preparing or treating the raw materials individually or as batches
    • C04B38/0635—Compounding ingredients
    • C04B38/0645—Burnable, meltable, sublimable materials
    • C04B38/065—Burnable, meltable, sublimable materials characterised by physical aspects, e.g. shape, size or porosity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nanotechnology (AREA)
  • Dispersion Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Tunnel Furnaces (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fireproofing Substances (AREA)
DK14196058.3T 2011-09-20 2012-08-23 Fremgangsmåde til fremstilling af lette, keramiske materialer DK2845843T3 (da)

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EP12756674.3A EP2758356B1 (de) 2011-09-20 2012-08-23 Verfahren zur herstellung leichter, keramischer werkstoffe

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Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6073327B2 (ja) * 2011-09-20 2017-02-01 エボニック レーム ゲゼルシャフト ミット ベシュレンクテル ハフツングＥｖｏｎｉｋ Ｒｏｅｈｍ ＧｍｂＨ 軽量セラミック材料の製法
CA2830976C (en) 2012-10-24 2019-02-12 Certainteed Corporation System, method and apparatus for manufactured building panel
USD809671S1 (en) 2013-10-22 2018-02-06 Certainteed Corporation Manufactured siding panel with frame
US9784403B2 (en) * 2014-07-02 2017-10-10 Coorstek Kk Heat insulator
WO2016105385A1 (en) * 2014-12-23 2016-06-30 Multi-Chem Group, Llc Activity enhanced scale dispersant for treating inorganic sulfide scales
CN106064963A (zh) * 2016-06-08 2016-11-02 甘肃迅美节能科技股份有限公司 一种高分子材料微孔泡沫保温陶片制备方法
JP6752074B2 (ja) * 2016-07-29 2020-09-09 デンカ株式会社 耐火物用骨材、その製造方法、及びそれを用いた耐火物
WO2019035164A1 (ja) * 2017-08-14 2019-02-21 日産自動車株式会社 遮熱部品及びその製造方法
ES2817413T3 (es) * 2017-11-08 2021-04-07 Refractory Intellectual Property Gmbh & Co Kg Materia prima para la fabricación de un producto refractario, un uso de esta materia prima, así como un producto refractario que comprende dicha materia prima
EA038743B1 (ru) * 2017-12-29 2021-10-13 Акционерное Общество "Наука И Инновации" Пористая структура для медицинских имплантатов
DE102018200969B3 (de) 2018-01-23 2018-11-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung poröser anorganischer Formkörper sowie damit hergestellte Formkörper und deren Verwendung
CN110002860A (zh) * 2019-02-27 2019-07-12 鹰牌陶瓷实业（河源）有限公司 刚玉莫来石隔热砖
KR102387318B1 (ko) 2020-04-03 2022-04-14 상명대학교산학협력단 에너지 공급 효율성 향상을 위한 클라우드 기반의 발전 플랫폼 분양 시스템
KR102380659B1 (ko) 2020-04-09 2022-03-29 상명대학교산학협력단 클라우드 기반의 에너지 분양형 플랫폼 및 분양방법
KR102382627B1 (ko) * 2020-06-12 2022-04-05 주식회사 원진월드와이드 턴디쉬 댐 및 그 제작방법
CN111847888A (zh) * 2020-07-30 2020-10-30 深圳绿蓝技术有限公司 多功能陶瓷及其制造方法与应用
CN114195548B (zh) * 2021-12-30 2023-06-09 中国工程物理研究院电子工程研究所 一种轻质电瓷的制备方法及轻质电瓷
CN114702324B (zh) * 2022-04-29 2023-05-05 河南机电职业学院 一种铝灰制取的镁铝尖晶石匣钵及制取方法
CN115124367A (zh) * 2022-07-20 2022-09-30 浙江锦诚新材料股份有限公司 一种水泥窑用抗酸碱腐蚀喷涂料及其制备方法
CN115353372B (zh) * 2022-08-19 2023-06-23 湖南金铠新材料科技股份有限公司 一种锂电正极材料烧结用匣钵及其制备方法
CN115594492A (zh) * 2022-09-27 2023-01-13 郑州荣盛窑炉耐火材料有限公司（Cn） 一种垃圾焚烧炉回转窑用半轻质碳氮复合耐火砖及其制备方法

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01167283A (ja) * 1987-12-23 1989-06-30 Honda Motor Co Ltd セラミック多孔体の製造方法
JPH0788909B2 (ja) * 1987-12-28 1995-09-27 日本タングステン株式会社 ポア分散材を用いたメカニカルシール並びにポア分散超硬合金及びその製造方法
JPH01239071A (ja) * 1988-03-17 1989-09-25 Kanebo Ltd セラミック多孔体の製造方法
JPH0255273A (ja) * 1988-08-18 1990-02-23 Showa Denko Kk メカニカルシール用炭化珪素焼結体およびそれを用いたメカニカルシール
JP2788061B2 (ja) 1989-05-26 1998-08-20 鐘紡株式会社 焼成用治具及びその製造方法
JPH04367578A (ja) * 1991-06-12 1992-12-18 Mitsubishi Materials Corp 多孔質焼結体及びその製造方法
US5395807A (en) * 1992-07-08 1995-03-07 The Carborundum Company Process for making silicon carbide with controlled porosity
JP2793148B2 (ja) * 1994-06-30 1998-09-03 財団法人韓国科学技術研究院 多孔質セラミックス積層体の製造方法
JPH0971482A (ja) * 1995-09-04 1997-03-18 Mitsubishi Chem Basf Co Ltd 多孔質セラミックス成形用スラリ−、及びそれを用いた多孔質セラミックスの製造方法
JPH09299472A (ja) 1996-05-10 1997-11-25 Ngk Spark Plug Co Ltd 生体インプラント材料及びその製造方法
DE19700727A1 (de) 1997-01-11 1998-07-16 Ernst Jungk & Sohn Gmbh Porosierter Ziegel und Verfahren zu seiner Herstellung
JP3474817B2 (ja) * 1999-11-17 2003-12-08 イソライト工業株式会社 セラミックス吸音材
JP4514274B2 (ja) * 2000-02-29 2010-07-28 京セラ株式会社 多孔質セラミック構造体の製造方法
JP4822605B2 (ja) * 2001-04-19 2011-11-24 株式会社ニッカトー 耐熱性ムライト質焼結体からなるローラハースキルン用ローラ
JP5036110B2 (ja) * 2001-07-25 2012-09-26 株式会社ニッカトー 軽量セラミック焼結体
JP2003146773A (ja) * 2001-11-13 2003-05-21 Ngk Spark Plug Co Ltd 多孔質セラミック及びその製造方法
RU2209793C1 (ru) * 2001-11-21 2003-08-10 Общество с ограниченной ответственностью Производственно-инвестиционная компания "Диатомит-Инвест" Композиция для изготовления теплоизоляционного материала
JP4030426B2 (ja) 2002-12-27 2008-01-09 イーグル工業株式会社 シール用摺動部材及びその製造方法
US6864198B2 (en) * 2003-01-30 2005-03-08 Corning Incorporated Cordierite ceramic body and method
DE10355668A1 (de) * 2003-11-28 2005-06-23 Institut für Neue Materialien Gemeinnützige GmbH Isolationsmaterial
JP5053505B2 (ja) * 2004-06-14 2012-10-17 積水化学工業株式会社 加熱消滅性樹脂粒子及びその製造方法
JP4440030B2 (ja) * 2004-07-28 2010-03-24 積水化学工業株式会社 セラミック組成物
FR2873685B1 (fr) * 2004-07-28 2007-06-22 Saint Gobain Ct Recherches Procede d'obtention de ceramiques poreuses
KR100646212B1 (ko) 2005-02-01 2006-11-23 한국기계연구원 고기공율 고강도 다공질세라믹스의 제조방법 및 그세라믹스소재
JP5025923B2 (ja) * 2005-07-20 2012-09-12 積水化学工業株式会社 セラミック組成物及び多孔質セラミックフィルタの製造方法
US8158248B2 (en) * 2005-04-27 2012-04-17 Kyocera Corporation Porous ceramic for slide member, method for preparing the same, and mechanical seal ring
US20070231884A1 (en) * 2006-04-04 2007-10-04 Toshiba Ceramics Co., Ltd. Porous body and producing method thereof
US7648548B2 (en) * 2006-05-10 2010-01-19 Corning Incorporated High porosity cordierite composition
JP2010502546A (ja) * 2006-08-29 2010-01-28 コーニング インコーポレイテッド ガラス結合セラミック構造体
DE102006051661A1 (de) * 2006-11-02 2008-05-08 Evonik Degussa Gmbh Zubereitung zur Herstellung feuerfester Materialien
JP2008247630A (ja) * 2007-03-29 2008-10-16 Emulsion Technology Co Ltd 多孔質セラミックス用気孔形成材
EP2025658A1 (en) * 2007-08-08 2009-02-18 Imerys Ceramics France Porous ceramic bodies and process for their preparation
EP2030957A1 (en) * 2007-08-28 2009-03-04 Corning Incorporated Fugitive pore former for porous ceramic articles
CN101381241B (zh) * 2008-10-16 2011-06-15 武汉科技大学 一种用于上水口的多孔透气耐火材料及其生产方法
JP6073327B2 (ja) * 2011-09-20 2017-02-01 エボニック レーム ゲゼルシャフト ミット ベシュレンクテル ハフツングＥｖｏｎｉｋ Ｒｏｅｈｍ ＧｍｂＨ 軽量セラミック材料の製法

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TR201905951T4 (tr) 2019-05-21
TWI586631B (zh) 2017-06-11
RS58848B1 (sr) 2019-07-31
HRP20191021T1 (hr) 2019-08-23
TW201716356A (zh) 2017-05-16
AR087967A1 (es) 2014-04-30
BR112014006516A2 (pt) 2017-03-28
JP2014532027A (ja) 2014-12-04
RU2622557C2 (ru) 2017-06-16
RU2014115609A (ru) 2015-10-27
EP2845843A1 (de) 2015-03-11
EP2758356B1 (de) 2021-06-09
KR20140078624A (ko) 2014-06-25
ES2725885T3 (es) 2019-09-30
US20140228211A1 (en) 2014-08-14
TWI586630B (zh) 2017-06-11
KR101995184B1 (ko) 2019-07-02
EP2758356A2 (de) 2014-07-30
EP2845843B1 (de) 2019-03-06
US20160176765A1 (en) 2016-06-23
JP6312169B2 (ja) 2018-04-18
PL2758356T3 (pl) 2021-11-22
JP2017024987A (ja) 2017-02-02
PT2845843T (pt) 2019-06-04
WO2013041322A2 (de) 2013-03-28
TW201326088A (zh) 2013-07-01
PL2845843T3 (pl) 2019-09-30
IN2014CN02640A (da) 2015-08-07
BR112014006516B1 (pt) 2020-12-08
US9284230B2 (en) 2016-03-15
CN103796973A (zh) 2014-05-14
HK1197227A1 (en) 2015-01-09
HUE043637T2 (hu) 2019-08-28
AR114864A2 (es) 2020-10-21
US9701588B2 (en) 2017-07-11
ES2885759T3 (es) 2021-12-15
BR112014006516B8 (pt) 2022-07-05
KR20180128498A (ko) 2018-12-03
JP6073327B2 (ja) 2017-02-01
CA2850093C (en) 2020-03-24
CA2850093A1 (en) 2013-03-28
KR101922751B1 (ko) 2018-11-27
SI2845843T1 (sl) 2019-07-31

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