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公开(公告)号:US08283282B2
公开(公告)日:2012-10-09
申请号:US12200611
申请日:2008-08-28
申请人: Yasushi Noguchi , Kyoko Makino , Takehiko Watanabe
发明人: Yasushi Noguchi , Kyoko Makino , Takehiko Watanabe
IPC分类号: C04B35/00 , C04B35/01 , C04B35/16 , C04B35/18 , C04B35/195
CPC分类号: B01D46/2474 , B01D46/2429 , B01D46/2444 , B01D46/2466 , B01D46/247 , B01D2046/2433 , B01D2046/2437 , B01D2046/2496 , B01D2275/30 , B01J35/04 , C04B35/195 , C04B38/0006 , C04B2111/00793 , C04B2111/0081 , C04B2235/3217 , C04B2235/3222 , C04B2235/3232 , C04B2235/3234 , C04B2235/3244 , C04B2235/3418 , C04B2235/3427 , C04B2235/3445 , C04B2235/3463 , C04B2235/3481 , C04B2235/349 , C04B2235/3826 , C04B2235/5436 , C04B2235/5472 , C04B2235/80 , C04B2235/9607 , F01N3/0222 , F01N2330/06 , F01N2330/30 , Y02T10/20 , Y10T428/24149 , C04B38/0054 , C04B38/0064
摘要: There is disclosed a ceramic structure which comprises a material having a controlled pore distribution and including cordierite as the main crystal phase. In the pore distribution, the volume of pores having pore diameters smaller than 20 μm accounts for 15% or less of the total pore volume, and the volume of pores having pore diameters of 20 to 100 μm accounts for 70% or more of the total pore volume. This ceramic structure is suitable for realizing a ceramic catalyst body which has excellent purification efficiency, is reduced in pressure loss, and is mountable even in a limited space.
摘要翻译: 公开了一种陶瓷结构,其包括具有受控孔分布并且包括堇青石作为主晶相的材料。 在孔分布中,孔径小于20μm的孔的体积占总孔体积的15%以下,孔径为20〜100μm的孔的体积占总孔数的70%以上 孔体积。 该陶瓷结构体适用于实现具有优异的净化效率,降低压力损失的陶瓷催化剂体,即使在有限的空间也能够安装。
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公开(公告)号:US06797205B2
公开(公告)日:2004-09-28
申请号:US10203784
申请日:2002-08-14
申请人: Kyoko Makino , Yasushi Noguchi
发明人: Kyoko Makino , Yasushi Noguchi
IPC分类号: B28B320
CPC分类号: C04B38/0006 , B28B3/20 , C04B35/111 , C04B35/185 , C04B35/195 , C04B35/478 , C04B35/486 , C04B35/5611 , C04B35/5622 , C04B35/563 , C04B35/565 , C04B35/581 , C04B35/584 , C04B35/597 , C04B35/632 , C04B35/63416 , C04B35/6365 , C04B2111/00129 , C04B2235/3218 , C04B2235/3418 , C04B2235/3445 , C04B2235/349 , C04B2235/449 , C04B2235/94
摘要: A process for producing a ceramic structure, which comprises adding an organic assistant to a ceramic raw material mixture, kneading them to obtain a readily formable bullet, and extruding the readily formable bullet to obtain a ceramic structure, wherein the organic assistant is composed mainly of an organic compound giving a haze of 10 to 90% when made into a 5 weight % aqueous dispersion. According to the process, the load to the extruder is small and a ceramic structure can be produced at high shapability and a high productivity.
摘要翻译: 一种陶瓷结构体的制造方法,其特征在于,在陶瓷原料混合物中添加有机助剂,将其捏合,得到容易成型的子弹,挤出易成型的子弹,得到陶瓷结构体,其中,有机助剂主要由 当制成5重量%的水分散体时,有机化合物的雾度为10〜90%。 根据该方法,挤出机的负荷小,能够以高成形性和高生产率制造陶瓷结构体。
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公开(公告)号:US06783724B2
公开(公告)日:2004-08-31
申请号:US09980940
申请日:2002-03-04
申请人: Yasushi Noguchi , Kyoko Makino
发明人: Yasushi Noguchi , Kyoko Makino
IPC分类号: B28B320
CPC分类号: B01D39/2086 , B01D39/2075 , C04B35/195 , C04B38/0006 , C04B2111/00129
摘要: A method of producing a cordierite ceramic honeycomb including the steps of: preparing raw materials becoming cordierite and forming agents; adding the forming agents into the raw materials for cordierite generation; mixing the forming agents and the raw materials to obtain a raw material batch; extruding the raw material batch to obtain a formed body; drying the formed body; and sintering the formed body after drying; so as to obtain a honeycomb structural body having a cordierite crystal phase as a main ingredient. In this method, at the sintering step, a temperature descending rate at least from a maximum temperature to 1300° C. is not larger than 100° C./hour.
摘要翻译: 一种生产堇青石陶瓷蜂窝体的方法,包括以下步骤:将原料制成堇青石和成型剂; 将成型剂加入堇青石生成原料中; 混合成型剂和原料以获得原料批料; 挤出原料批料以获得成形体; 干燥成型体; 干燥后烧成成形体; 以获得具有堇青石晶相作为主要成分的蜂窝结构体。 在该方法中,在烧结工序中,至少从最高温度至1300℃的温度下降率不大于100℃/小时。
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公开(公告)号:US06878337B2
公开(公告)日:2005-04-12
申请号:US10333608
申请日:2001-05-25
申请人: Yasushi Noguchi , Kyoko Makino
发明人: Yasushi Noguchi , Kyoko Makino
IPC分类号: B01D39/20 , C04B35/10 , C04B35/565 , C04B35/632 , C04B35/634 , C04B35/636 , C04B38/00 , B22F5/00
CPC分类号: C04B35/195 , C04B35/10 , C04B35/565 , C04B35/62625 , C04B35/6263 , C04B35/62655 , C04B35/63 , C04B35/6303 , C04B35/632 , C04B35/63416 , C04B35/636 , C04B35/6365 , C04B38/0006 , C04B2111/00793 , C04B2235/3206 , C04B2235/3217 , C04B2235/3225 , C04B2235/3234 , C04B2235/3244 , C04B2235/3272 , C04B2235/3418 , C04B2235/3445 , C04B2235/3463 , C04B2235/3481 , C04B2235/349 , C04B2235/36 , C04B2235/3821 , C04B2235/3826 , C04B2235/3839 , C04B2235/3843 , C04B2235/386 , C04B2235/3865 , C04B2235/3869 , C04B2235/3873 , C04B2235/402 , C04B2235/405 , C04B2235/407 , C04B2235/428 , C04B2235/449 , C04B2235/80 , C04B40/0218
摘要: A process for producing a honeycomb structure, which comprises adding water to a mixed raw material of a raw material powder and a binder, kneading the mixture to obtain a plastic mixture, molding the plastic mixture into a honeycomb shape to obtain a green honeycomb structure, drying the structure by a step including hot-air drying, and firing the resulting dried honeycomb structure, wherein the binder contains hydroxypropyl methyl cellulose as a major component. The process can produce a crack-free high-quality honeycomb structure rapidly at a low cost.
摘要翻译: 一种蜂窝结构体的制造方法,其特征在于,在原料粉末和粘合剂的混合原料中加入水,混合所述混合物,得到塑料混合物,将所述塑料混合物成型为蜂窝状,得到绿色蜂窝结构体, 通过包括热风干燥的步骤干燥结构,并焙烧所得干燥的蜂窝结构体,其中粘合剂含有羟丙基甲基纤维素作为主要成分。 该工艺可以以低成本快速生产无裂纹的高品质蜂窝结构。
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5.
公开(公告)号:US06649244B2
公开(公告)日:2003-11-18
申请号:US09959211
申请日:2002-01-17
IPC分类号: B32B312
CPC分类号: B28B11/0818 , B01D53/885 , B01D53/94 , B01J35/04 , B01J35/10 , F01N3/2828 , Y10T428/131 , Y10T428/24149 , Y10T428/24628 , Y10T428/24744 , Y10T428/249953
摘要: A ceramic honeycomb catalyst carrier wherein a porosity is 20% or less and an average surface roughness (Ra) of a partition wall of the carrier is 0.5 &mgr;m or more is obtained by forming ceramic raw materials to obtain a ceramic honeycomb formed body; drying the ceramic honeycomb formed body to obtain a ceramic honeycomb dried-up body; roughening a surface of the partition wall of the ceramic honeycomb dried-up body by exposing the ceramic honeycomb dried-up body in an airflow in which polishing powders are included; and sintering the ceramic honeycomb dried-up body after a surface treatment, or, by forming ceramic raw materials to obtain a ceramic honeycomb formed body; drying and sintering the ceramic honeycomb formed body to obtain a ceramic honeycomb sintered body; and roughening a surface of the partition wall of the ceramic honeycomb sintered body by exposing the ceramic honeycomb sintered body in an airflow or a water flow in which polishing powders are included.
摘要翻译: 通过形成陶瓷原料得到陶瓷蜂窝成形体,得到孔隙率为20%以下,载体隔壁的平均表面粗糙度(Ra)为0.5μm以上的陶瓷蜂窝状催化剂载体, 干燥陶瓷蜂窝成型体,得到陶瓷蜂窝干燥机; 通过在包含抛光粉末的气流中使陶瓷蜂窝干燥机体露出,使陶瓷蜂窝干燥机的分隔壁的表面粗糙化; 在表面处理后烧结陶瓷蜂窝状干燥体,或者通过形成陶瓷原料,得到陶瓷蜂窝成形体; 干燥并烧结陶瓷蜂窝成形体,得到陶瓷蜂窝烧结体; 通过将陶瓷蜂窝烧结体暴露在包含研磨粉末的气流或水流中,使陶瓷蜂窝状烧结体的隔壁的表面粗糙化。
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6.
公开(公告)号:US06291379B1
公开(公告)日:2001-09-18
申请号:US09493206
申请日:2000-01-28
申请人: Yasushi Noguchi , Kyoko Makino , Wataru Kotani
发明人: Yasushi Noguchi , Kyoko Makino , Wataru Kotani
IPC分类号: C04B35195
CPC分类号: B01J21/14
摘要: A process for producing a cordierite-based ceramic honeycomb structure, includes kneading raw materials for cordierite with a forming aid to obtain a raw material batch, subjecting the raw material batch to obtain a honeycomb structure, and subjecting the honeycomb structure to drying and firing in this order to obtain a ceramic honeycomb structure whose crystal phase is composed mainly of cordierite. The raw material batch contains 65% by weight or more of raw materials for cordierite, comprising talc, kaolin and aluminum hydroxide and having crystal water. The kaolin has an average particle diameter of 5 &mgr;or more and a BET specific surface area of 10 m2/g or less and is contained in the raw material batch in an amount of 10% or more by weight. Formability during extruding, particularly lubricity and shape stability, are improved, for producing cordierite-based ceramic honeycomb structure having thin partition walls and high cell density, and improved mechanical strength (isostatic fracture strength) and improved catalyst coatability.
摘要翻译: 一种堇青石系陶瓷蜂窝结构体的制造方法,其特征在于,将堇青石的原料与成形助剂混炼,得到原料批料,对原料批料进行处理,得到蜂窝结构体,使蜂窝结构物进行干燥烧成 这是为了得到其结晶相主要由堇青石组成的陶瓷蜂窝结构体。 原料批料含有65重量%以上的堇青石原料,包括滑石,高岭土和氢氧化铝,并具有结晶水。 所述高岭土的平均粒径为5μm以上,BET比表面积为10m 2 / g以下,原料成分含有10重量%以上。 改善挤出时的成形性,特别是润滑性和形状稳定性,用于生产具有薄隔壁和高泡孔密度以及改进的机械强度(等静压断裂强度)和改进的催化剂涂覆性的堇青石基陶瓷蜂窝结构体。
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公开(公告)号:US20090014925A1
公开(公告)日:2009-01-15
申请号:US10584943
申请日:2005-01-11
申请人: Yasushi Noguchi , Kyoko Makino , Shuuji Ueda
发明人: Yasushi Noguchi , Kyoko Makino , Shuuji Ueda
IPC分类号: C04B38/08
CPC分类号: C04B16/085 , C04B35/195 , C04B35/565 , C04B38/0006 , C04B2111/00793 , C04B2235/3217 , C04B2235/3218 , C04B2235/3418 , C04B2235/349 , C04B2235/6021 , C04B38/0054 , C04B38/0625
摘要: A method for manufacturing a porous ceramic structure which comprises: mixing a ceramic material, a foamed resin and, if necessary, a forming auxiliary; forming the mixture; and then firing the thus formed body, wherein: a resin of an outer shell of the foamed resin is constituted of a copolymer containing 60 wt % or more of acrylonitrile and 40 wt % or less of methyl methacrylate.
摘要翻译: 一种多孔陶瓷结构体的制造方法,其特征在于,包括:将陶瓷材料,发泡树脂和必要时的成形助剂混合; 形成混合物; 然后焙烧这样形成的本体,其中:发泡树脂的外壳的树脂由含有60重量%以上的丙烯腈和40重量%以下的甲基丙烯酸甲酯的共聚物构成。
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公开(公告)号:US07704442B2
公开(公告)日:2010-04-27
申请号:US12209866
申请日:2008-09-12
CPC分类号: C04B35/195 , B01J35/04 , B01J35/10 , C04B38/0006 , C04B2111/00793 , C04B2111/0081 , C04B2111/10 , C04B2235/3217 , C04B2235/3218 , C04B2235/3222 , C04B2235/3418 , C04B2235/3445 , C04B2235/349 , C04B2235/5436 , C04B2235/5463 , C04B2235/77 , F01N3/0222 , Y10T428/24149 , C04B38/00 , C04B38/0054 , C04B38/0074
摘要: A process for producing a honeycomb structure by obtaining clay from a cordierite-forming raw material containing an alumina source, a silica source, and a magnesia source; and forming the clay into a honeycomb shape, wherein a material having, in its volume particle size distribution, a 50 volume % particle size (V50) [μm] of 1 to 25 μm is used, as each of alumina source, silica source, and magnesia source; and a material having, in the volume particle size distribution of the whole cordierite-forming raw material, a ratio of 90 volume % particle size (Vall90) [μm] to 10 volume % particle size (Vall10) [μm] [a volume particle size distribution ratio (Vall90/Vall10)] of 10 or less and a difference (Vall90−Vall10) between 90 volume % particle size (Vall90) [μm] and 10 volume % particle size (Vall10) [μm] of 25 μm or less is used, as the cordierite-forming raw material.
摘要翻译: 一种通过从含有氧化铝源,二氧化硅源和氧化镁源的堇青石形成原料获得粘土来生产蜂窝结构的方法; 并将所述粘土形成为蜂窝状,其中使用其体积粒径分布为50体积%的粒径(V50)[μm]为1〜25μm的材料,作为氧化铝源,二氧化硅源, 和氧化镁来源; 以及在整个堇青石形成原料的体积粒度分布中具有90体积%的粒径(Vall90)[μm]至10体积%的粒径(Vall10)[μm]的比例[体积粒径 尺寸分布比(Vall90 / Vall10)]为10以下,和90体积%粒径(Vall90)[μm]与10体积%粒径(Vall10)[μm]之间的差(Vall90-Vall10)为25μm以下 被用作形成堇青石的原料。
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公开(公告)号:US07468156B2
公开(公告)日:2008-12-23
申请号:US11496236
申请日:2006-07-31
IPC分类号: B28B1/00
CPC分类号: B28B11/006 , C04B35/195 , C04B2235/6562 , C04B2235/6584
摘要: There is provided a method for manufacturing a porous ceramic structure, including: firing a formed body containing ceramic particles and a combustible powder functioning as a pore former, and burning off the combustible powder to obtain the porous ceramic structure. The combustible powder has an exothermic rate of 0 to 35 μV·min./mg, which is obtained from a differential thermal analysis. The method for manufacturing a porous ceramic structure can inhibit a crack from being generated during firing even without slowing down the temperature rise rate at the combustion range of the pore former or without lowering an oxygen content in the firing atmosphere.
摘要翻译: 提供一种多孔陶瓷结构体的制造方法,其特征在于,包括:烧成含陶瓷粒子的成形体和作为成孔剂的可燃粉末,烧掉所述可燃性粉末,得到所述多孔质陶瓷结构体。 可燃粉末的放热速率为0〜35μV·min·min,由差热分析得到。 制造多孔陶瓷结构体的方法可以抑制在焙烧期间产生裂纹,即使不降低成孔剂的燃烧范围内的升温速率或不降低烧制气氛中的氧含量。
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公开(公告)号:US08974723B2
公开(公告)日:2015-03-10
申请号:US12367879
申请日:2009-02-09
IPC分类号: C04B35/64 , C04B35/195 , C04B26/28 , C04B33/10 , C04B35/626 , C04B38/00 , C04B111/00 , C04B111/10 , F01N3/035
CPC分类号: C04B35/195 , C04B26/285 , C04B33/10 , C04B35/62635 , C04B38/0006 , C04B38/0012 , C04B2111/00793 , C04B2111/10 , C04B2235/3217 , C04B2235/3418 , C04B2235/3427 , C04B2235/3445 , C04B2235/349 , C04B2235/5436 , C04B2235/72 , F01N3/035 , F01N2330/06 , F01N2330/20 , C04B38/0054 , C04B38/0074 , C04B38/0645 , C04B14/042 , C04B14/06 , C04B14/106 , C04B14/303 , C04B2103/40
摘要: A process for producing a honeycomb structure includes: a mixing step where forming raw materials including a ceramic raw material are mixed to obtain a forming blended material, a kneading step where the forming blended material is kneaded to obtain kneaded clay, a forming step where the kneaded clay is formed into a honeycomb shape to obtain a honeycomb formed article, and a firing step where the honeycomb formed article is fired to obtain a honeycomb structure. The ceramic raw material is a cordierite forming raw material, and a magnetic powder contained in the kneaded clay is at a ratio of 400 ppm or less with respect to solid content conversion mass of the whole kneaded clay. There is provided a honeycomb structure capable of improving trapping efficiency, in particular, initial trapping efficiency by reducing the number of coarse pores in the partition walls.
摘要翻译: 一种蜂窝结构体的制造方法,其特征在于,包括:混合包含陶瓷原料的原料的混合工序,得到成形混合材料,混炼工序,使所述成形混合材料混炼,得到混炼粘土,形成工序, 将捏合的粘土形成为蜂窝形状以获得蜂窝成形体,并且烧制步骤,其中焙烧蜂窝成形体以获得蜂窝结构体。 陶瓷原料是堇青石形成原料,混合粘土中含有的磁性粉末相对于整个混炼粘土的固体成分转化质量为400ppm以下。 提供一种能够通过减少分隔壁中的粗孔数来提高捕集效率,特别是初始捕集效率的蜂窝结构体。
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