公开(公告)号：US20170368538A1

公开(公告)日：2017-12-28

申请号：US15695065

申请日：2017-09-05

申请人： HITACHI METALS, LTD.

发明人： Shunji OKAZAKI

IPC分类号： B01J29/70 ,  C04B38/00 ,  B01J23/63 ,  B01J35/04 ,  B01J35/10 ,  B01J37/00 ,  B01J37/04 ,  B01D46/24 ,  B01J37/08

CPC分类号： B01J29/70 ,  B01D46/2429 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01J23/63 ,  B01J35/04 ,  B01J35/10 ,  B01J37/0018 ,  B01J37/04 ,  B01J37/082 ,  C04B35/195 ,  C04B38/0006 ,  C04B38/0054 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3418 ,  C04B2235/3463 ,  C04B2235/3481 ,  C04B2235/349 ,  C04B2235/5436 ,  C04B2235/5463 ,  C04B2235/6021 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/80 ,  C04B2235/96 ,  C04B2235/9607 ,  Y10T428/24149 ,  C04B38/0074

摘要： A ceramic honeycomb structure comprising large numbers of cells partitioned by porous cell walls, the cell walls having (a) porosity of 50-80%, and when measured by mercury porosimetry, (b) a median pore diameter being 25-50 μm, (c) (i) a cumulative pore volume in a pore diameter range of 20 μm or less being 25% or less of the total pore volume, (ii) a cumulative pore volume in a pore diameter range of more than 20 μm and 50 μm or less being 50% or more of the total pore volume, and (iii) a cumulative pore volume in a pore diameter range of more than 50 μm being 12% or more of the total pore volume.

公开(公告)号：US20140333000A1

公开(公告)日：2014-11-13

申请号：US14339596

申请日：2014-07-24

申请人： HITACHI METALS, LTD.

发明人： Shunji OKAZAKI ,  Toshitaka ISHIZAWA

IPC分类号： B01D46/00 ,  C04B38/00 ,  C04B38/06 ,  B01D46/24

CPC分类号： B01D46/0001 ,  B01D46/2418 ,  B01D46/2429 ,  B01D2046/2433 ,  B01D2046/2496 ,  B01D2279/30 ,  B01J35/04 ,  C04B35/195 ,  C04B38/0009 ,  C04B38/0054 ,  C04B38/0067 ,  C04B38/06 ,  C04B2111/00793 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/5436 ,  C04B2235/6021 ,  C04B2235/9607 ,  F01N3/0222 ,  F01N2330/60 ,  Y02T10/20 ,  C04B38/0074

摘要： A ceramic honeycomb filter including a ceramic honeycomb structure having large numbers of flow paths partitioned by porous cell walls, and plugs disposed in the flow paths alternately on the exhaust gas inlet or outlet side, to remove particulate matter from an exhaust gas passing through the porous cell walls; the porous cell walls having porosity of 45-75%, the median pore diameter A (μm) of the cell walls measured by mercury porosimetry, and the median pore diameter B (μm) of the cell walls measured by a bubble point method meeting the formula of 35

摘要翻译： 一种陶瓷蜂窝过滤器，包括具有由多孔孔壁分隔的大量流路的陶瓷蜂窝结构体，以及在排气入口或出口侧交替设置在流路中的塞子，以从通过多孔孔的废气中除去颗粒物质 细胞壁; 多孔孔壁的孔隙率为45-75％，通过水银孔率法测量的孔壁的中值孔径A（μm）和通过泡点法测量的孔壁的中值孔径B（μm）满足 35 <（A-B）/ B×100＆nlE; 70，通过泡点法测定的孔壁的最大孔径为100μm以下。

公开(公告)号：US20160250577A1

公开(公告)日：2016-09-01

申请号：US14896808

申请日：2014-09-24

申请人： HITACHI METALS, LTD.

发明人： Shunji OKAZAKI

IPC分类号： B01D46/24 ,  B01J35/04 ,  C04B38/00 ,  F01N3/28 ,  B01D53/94

CPC分类号： F01N3/2828 ,  B01D46/2429 ,  B01D53/9418 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01D2046/2496 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/915 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01D2258/012 ,  B01J23/42 ,  B01J29/70 ,  B01J35/04 ,  B01J37/0018 ,  B01J37/08 ,  B28B3/20 ,  B28B2003/203 ,  C04B16/082 ,  C04B35/195 ,  C04B35/66 ,  C04B38/0006 ,  C04B38/06 ,  C04B2111/0081 ,  C04B38/0054 ,  C04B38/0074 ,  C04B38/067 ,  C04B20/1055

摘要： A cordierite-type ceramic honeycomb structure having large numbers of flow paths partitioned by porous cell walls; the cell walls having (a) porosity of more than 65% and 75% or less, (b) in a pore diameter distribution measured by mercury porosimetry, (i) a pore diameter d10 at a cumulative pore volume corresponding to 10% of the total pore volume being less than 50 μm, a pore diameter (median pore diameter) d50 at 50% being 18-27 μm, a pore diameter d90 at 90% being 10 μm or more, and (d10−d90)/d50 being 2.3 or less; (ii) σ[=log(d20)−log(d80)] being 0.25 or less, wherein σ represents the difference between a logarithm of a pore diameter d20 at a cumulative pore volume corresponding to 20% of the total pore volume and a logarithm of a pore diameter d80 at a cumulative pore volume corresponding to 80% of the total pore volume; and (iii) the maximum of the inclination Sn=−(Vn−Vn-1)/[log(dn)−log(dn-1)] of a curve of a cumulative pore volume to a pore diameter being 3 or more, wherein dn and Vn are respectively a pore diameter and a cumulative pore volume at an n-th measurement point, and dn-1 and Vn-1 are respectively a pore diameter and a cumulative pore volume at a (n−1)-th measurement point.

摘要翻译： 一种堇青石型陶瓷蜂窝结构体，具有多孔细胞壁分隔的大量流路; （a）孔隙率大于65％和75％以下，（b）在通过水银孔率法测定的孔径分布中，（i）孔径d10在累积孔体积对应于10％ 总孔体积小于50μm，50％的孔径（中值孔径）d50为18-27μm，90％的孔径d90为10μm以上，（d10-d90）/ d50为2.3 或更少; （ii）σ[= log（d20）-log（d80）]为0.25以下，其中σ表示对应于总孔体积的20％的累积孔体积的孔径d20的对数与 孔径d80对应于总孔体积的80％的累积孔体积的对数; 和（iii）累积孔体积对孔径的曲线为3以上的倾斜度Sn = - （Vn-Vn-1）/ [log（dn）-log（dn-1）]的最大值， 其中dn和Vn分别为第n个测量点的孔径和累积孔体积，dn-1和Vn-1分别为第（n-1）次测量时的孔径和累积孔体积 点。

公开(公告)号：US20150251124A1

公开(公告)日：2015-09-10

申请号：US14718665

申请日：2015-05-21

申请人： HITACHI METALS, LTD.

发明人： Shunji OKAZAKI

IPC分类号： B01D46/24 ,  C04B38/00 ,  B01D46/00 ,  C04B35/195 ,  B01D39/20 ,  F01N3/022

CPC分类号： B01D46/2429 ,  B01D39/2068 ,  B01D46/0001 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01D2239/1208 ,  B01D2239/1216 ,  B01D2239/125 ,  B01D2239/1258 ,  C04B35/195 ,  C04B38/0006 ,  C04B38/0009 ,  C04B38/067 ,  C04B38/068 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3418 ,  C04B2235/3445 ,  F01N3/0222 ,  F01N2330/06 ,  Y02T10/20 ,  Y10T428/24149 ,  C04B38/0054

摘要： A ceramic honeycomb structure having a large number of flow paths partitioned by porous cell walls, the cell walls having porosity of 40-60%; pores opening on the cell wall surface having an opening area ratio (total opening area of pores opening on cell wall surface per unit area) of 15% or more; the median opening diameter of the opening pores being 10 μm or more and less than 40 μm, when the opening diameter of each pore opening on the cell wall surface is expressed by an equivalent circle diameter (diameter of a circle having the same area as the opening area of each pore); the density of pores having equivalent circle diameters of 10 μm or more and less than 40 μm being 350/mm2 or more; and the average circularity of pores having equivalent circle diameters of 10 μm or more and less than 40 μm being 1-2.

摘要翻译： 一种陶瓷蜂窝结构，其具有多孔细胞壁分隔的大量流动路径，孔隙率为40-60％; 细胞壁表面上开口的孔隙开口面积比（单位面积的细胞壁表面开孔数量的总开口面积）为15％以上; 当细孔壁表面上的每个孔口的开口直径由等效圆直径（具有相同面积的圆的直径）表示时，开口孔的中孔开口直径为10μm以上且小于40μm 每个孔的开口面积）; 等效圆直径为10μm以上且小于40μm的孔的密度为350 / mm 2以上; 具有等效圆直径为10μm以上且小于40μm的孔的平均圆形度为1-2。

公开(公告)号：US20180016955A1

公开(公告)日：2018-01-18

申请号：US15706794

申请日：2017-09-18

申请人： HITACHI METALS, LTD.

发明人： Shunji OKAZAKI

IPC分类号： F01N3/022 ,  B28B3/26 ,  C04B38/06 ,  B01D46/24 ,  C04B35/20 ,  C04B38/00

CPC分类号： F01N3/0222 ,  B01D39/20 ,  B01D46/2429 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01D2046/2481 ,  B01D2275/30 ,  B01D2279/30 ,  B28B3/269 ,  C04B35/195 ,  C04B35/20 ,  C04B38/00 ,  C04B38/0006 ,  C04B38/0054 ,  C04B38/06 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3418 ,  C04B2235/3445 ,  C04B2235/349 ,  C04B2235/5296 ,  C04B2235/5436 ,  C04B2235/5463 ,  C04B2235/6021 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/9607 ,  F01N2330/06 ,  Y02T10/20 ,  C04B38/0051 ,  C04B38/0074 ,  C04B38/0655

摘要： A ceramic honeycomb structure having pluralities of flow paths partitioned by porous cell walls; (a) the cell walls having porosity of 50-60%; and (b) in a pore diameter distribution in the cell walls measured by mercury porosimetry, (i) pore diameters at cumulative pore volumes corresponding to particular percentages of the total pore volume being within specific ranges and having specific relationships; and (ii) the difference between a logarithm of the pore diameter at a cumulative pore volume corresponding to 20% of the total pore volume and a logarithm of the pore diameter at 80% being 0.39 or less, and its production method.

公开(公告)号：US20170216747A1

公开(公告)日：2017-08-03

申请号：US15515184

申请日：2015-09-30

申请人： HITACHI METALS, LTD.

发明人： Shunji OKAZAKI

IPC分类号： B01D39/20 ,  B01D46/24

CPC分类号： B28B3/269 ,  B01D39/2068 ,  B01D46/2455 ,  B01D46/247 ,  B01D46/2474 ,  B01D2046/2481 ,  B01D2046/2485 ,  B01D2046/2492 ,  B01D2046/2496 ,  B01D2279/30 ,  B28B3/20 ,  B28B3/26 ,  C04B38/0006 ,  C04B2235/6021

摘要： A ceramic honeycomb structure comprising a ceramic honeycomb body having pluralities of longitudinal flow paths partitioned by square-lattice-cross-sectioned cell walls, and an outer peripheral wall formed on an outer periphery of the ceramic honeycomb body; the outermost peripheral cell wall of the ceramic honeycomb body having an outer peripheral surface shape reflecting the square lattice shapes of the cell walls; the thickness of the outer peripheral cell wall being larger than the thickness of the cell walls; and the outer peripheral wall being formed to cover an outer peripheral surface of the outer peripheral cell wall.

公开(公告)号：US20150360162A1

公开(公告)日：2015-12-17

申请号：US14762071

申请日：2014-09-18

申请人： HITACHI METALS,LTD.

发明人： Shunji OKAZAKI

IPC分类号： B01D46/24 ,  F01N3/022 ,  C04B35/195 ,  C04B38/00 ,  C04B38/06

CPC分类号： B01D46/2429 ,  B01D39/2068 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01D2046/2496 ,  B01D2279/30 ,  C04B33/04 ,  C04B33/30 ,  C04B35/195 ,  C04B38/0006 ,  C04B38/06 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3418 ,  C04B2235/349 ,  C04B2235/5418 ,  C04B2235/5436 ,  C04B2235/6021 ,  C04B2235/606 ,  F01N3/0222 ,  F01N2330/48 ,  Y02T10/20 ,  C04B35/00 ,  C04B38/007 ,  C04B38/0074

摘要： A ceramic honeycomb structure including large numbers of flow paths partitioned by porous cell walls; (a) the cell walls having porosity of 55-65%; and (b) in a pore diameter distribution in the cell walls measured by mercury porosimetry, (i) pore diameters at cumulative pore volumes corresponding to specific percentages of the total pore volume being within specific ranges and satisfying specific relationships; (ii) the difference of a logarithm of the pore diameter at a cumulative pore volume corresponding to 20% of the total pore volume and a logarithm of the pore diameter at 80% being 0.39 or less; and (iii) the volume of pores of more than 100 μm being 0.05 cm3/g or less.

摘要翻译： 一种陶瓷蜂窝结构，其包括多孔细胞壁分隔的大量流路; （a）孔隙率为55-65％的孔壁; 和（b）在通过水银孔率法测量的细胞壁中的孔径分布中，（i）累积孔体积下的孔径对应于总孔体积的特定百分比在特定范围内并满足特定关系; （ii）相当于总孔体积的20％，孔径在80％的对数为0.39以下的累积孔体积的孔径的对数差为0.39以下。 和（iii）大于100μm的孔的体积为0.05cm 3 / g以下。

公开(公告)号：US20180050333A1

公开(公告)日：2018-02-22

申请号：US15555759

申请日：2016-01-26

申请人： HITACHI METALS, LTD.

发明人： Shunji OKAZAKI

IPC分类号： B01J35/04 ,  C04B38/00 ,  F01N3/28 ,  B01D53/94 ,  C04B35/195

CPC分类号： B01J35/04 ,  B01D46/2429 ,  B01D46/2451 ,  B01D53/94 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01J32/00 ,  C04B35/195 ,  C04B38/00 ,  C04B38/0006 ,  C04B38/0074 ,  C04B38/06 ,  F01N3/28

摘要： A ceramic honeycomb structure comprising porous cell walls defining large numbers of flow paths, the cell walls having (a) porosity of 55% or more and less than 65%, and (b) 35,000/mm3 or more of substrate branches, wherein the number of substrate branches is defined by the number of branch points (including connecting points of 3 or more branches and connecting points of different-width branches) per a unit volume, in a network structure obtained by the skeletonization of the three-dimensional structure of cell wall substrates determined by X-ray CT.

公开(公告)号：US20180044250A1

公开(公告)日：2018-02-15

申请号：US15728674

申请日：2017-10-10

申请人： HITACHI METALS, LTD.

发明人： Shunji OKAZAKI

IPC分类号： C04B38/00 ,  B01D46/00 ,  C04B41/52 ,  C04B41/89 ,  C04B41/00 ,  F01N3/28 ,  C04B111/00

CPC分类号： C04B38/0009 ,  B01D46/0001 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C04B2111/0081 ,  F01N3/2825 ,  F01N3/2828 ,  Y10T428/24149 ,  C04B35/00 ,  C04B38/0006 ,  C04B35/195 ,  C04B41/5089 ,  C04B41/508 ,  C04B41/522 ,  C04B41/5035 ,  C04B41/5024

摘要： A method for producing a ceramic honeycomb structure comprising a ceramic honeycomb body having large numbers of longitudinal cells partitioned by porous cell walls having porosity of 50% or more, and a peripheral wall formed on a peripheral surface of the ceramic honeycomb body, comprising the steps of extruding moldable ceramic material to form a honeycomb-structured ceramic green body; machining a peripheral portion of the green body or a sintered body obtained from the green body to remove part of cell walls in the peripheral portion to obtain a ceramic honeycomb body having longitudinal grooves on a peripheral surface; applying colloidal metal oxide to a peripheral surface of the ceramic honeycomb body and drying it, and then applying a coating material comprising ceramic aggregate having an average particle size of 1 μm or more to form the peripheral wall.

公开(公告)号：US20170304762A1

公开(公告)日：2017-10-26

申请号：US15516545

申请日：2016-03-17

申请人： HITACHI METALS, LTD.

发明人： Shunji OKAZAKI

IPC分类号： B01D46/24 ,  B01J35/10 ,  F01N3/022 ,  C04B38/00

CPC分类号： B01D46/2429 ,  B01D39/20 ,  B01D46/2425 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01D2046/2496 ,  B01D2275/30 ,  B01J35/10 ,  B01J35/1033 ,  B01J35/1052 ,  C04B35/195 ,  C04B38/0009 ,  C04B2111/00793 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3418 ,  C04B2235/349 ,  C04B2235/5296 ,  C04B2235/5436 ,  C04B2235/5463 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/72 ,  F01N3/022 ,  C04B38/0054 ,  C04B38/0074 ,  C04B38/0655 ,  C04B38/067

摘要： A ceramic honeycomb structure having pluralities of flow paths partitioned by porous cell walls, (a) the cell walls having porosity of 50-63%; and (b) in a pore diameter distribution in the cell walls measured by mercury porosimetry, (i) pore diameters at cumulative pore volumes corresponding to particular percentages of the total pore volume being within specific ranges and having specific relationships; (ii) the difference between a logarithm of the pore diameter at a cumulative pore volume corresponding to 20% of the total pore volume and a logarithm of the pore diameter at 80% being 0.39 or less; and (iii) the volume of pores of more than 100 μm being 0.03 cm3/g or less.