公开(公告)号：US20150278602A1

公开(公告)日：2015-10-01

申请号：US14663524

申请日：2015-03-20

Applicant: NGK Insulators, Ltd.

Inventor： Satoshi SAKASHITA ,  Hiroyuki NAGAOKA ,  Ayaka SAKAI

IPC: G06K9/00 ,  G06T7/00 ,  G06K9/52 ,  G06T7/20 ,  G01N15/08 ,  G01B11/24

CPC classification number: G06K9/00624 ,  C04B38/06 ,  G01B11/24 ,  G01N15/082 ,  G01N15/088 ,  G01N23/046 ,  G01N33/388 ,  G01N2015/084 ,  G01N2015/0846 ,  G01N2223/419 ,  G01N2223/649 ,  G06K9/52 ,  G06T7/12 ,  G06T7/187 ,  G06T7/20 ,  G06T2207/10081 ,  G06T2207/30108

Abstract: Plural of virtual curved surface solids, each of which is a curved surface solid formed by a combination of plural of virtual spheres, is placed so as to fill in space voxels, referring to porous-body data in which positional information is associated with voxel-type information (step S100). Information regarding a flow rate for each space voxel when a fluid passes through a porous body is derived by executing a fluid analysis based on the porous-body data (step S110). A flow-rate-weighted mean diameter Ru, which is a weighted average obtained by weighting an equivalent diameter R′i for each virtual curved surface solid with a volume Vi and an average flow rate Ui for each virtual curved surface solid, is derived based an information regarding the virtual curved surface solids and information regarding the flow rate for each space voxel (step S120).

Abstract translation: 将多个虚拟曲面固体（其中的每一个都是由多个虚拟球体的组合形成的弯曲表面固体）放置成填充空间体素，参考其中位置信息与体素相关联的多孔体数据， 类型信息（步骤S100）。 通过基于多孔体数据执行流体分析，得出当流体通过多孔体时每个空间体素的流量的信息（步骤S110）。 流量加权平均直径Ru是通过用体积Vi加权每个虚拟曲面固体的当量直径R'i得到的加权平均值，以及每个虚拟曲面固体的平均流量Ui 关于虚拟曲面固体的信息和关于每个空间体素的流量的信息（步骤S120）。

公开(公告)号：US20150278409A1

公开(公告)日：2015-10-01

申请号：US14663537

申请日：2015-03-20

Applicant: NGK Insulators, Ltd.

Inventor： Satoshi SAKASHITA ,  Hiroyuki NAGAOKA ,  Takehide SHIMODA

IPC: G06F17/50 ,  B01D46/24 ,  B28B11/24

CPC classification number: G06F17/5009 ,  B01D46/2451 ,  B01D2046/2496 ,  B28B11/243 ,  C04B28/24 ,  C04B35/195 ,  C04B35/6365 ,  C04B38/0006 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3229 ,  C04B2235/3244 ,  C04B2235/349 ,  C04B2235/5436 ,  C04B2235/6021 ,  C04B2235/606 ,  C04B14/324 ,  C04B14/4656 ,  C04B24/02 ,  C04B38/0054 ,  C04B38/0074 ,  C04B38/0645

Abstract: A porous body has a flow-rate-weighted mean diameter Ru of 10 μl or more and 24 μm or less, which is obtained as follows: with reference to porous-body data obtained by a CT scan in which positional information is associated with voxel-type information, a plurality of virtual curved surface solids, which are each a curved surface solid made up of a plurality of virtual spheres, are placed to fill space voxels (Step S100); fluid analysis is carried out to obtain information regarding the flow rates of a fluid in individual space voxels during passing of the fluid through the porous body (Step S110); and, the flow-rate-weighted mean diameter Ru is obtained, which is a weighted mean obtained by weighting the equivalent diameter R′i of each virtual curved surface solid with the volume Vi and average flow rate Ui of each virtual curved surface solid (Step S120).

Abstract translation: 多孔体的流速加权平均直径Ru为10μl以上且24μm以下，如下所述：参照通过CT扫描获得的多孔体数据，其中位置信息与体素相关联 放置多个虚拟曲面固体，它们分别由多个虚拟球形成的曲面实体，以填充空间体素（步骤S100）。 进行流体分析以获得关于流体通过多孔体时的个体空间体素中的流体的流量的信息（步骤S110）。 并且获得流量加权平均直径Ru，其是通过用虚拟曲面实体的体积Vi和平均流量Ui加权每个虚拟曲面固体的当量直径R'i获得的加权平均（ 步骤S120）。

公开(公告)号：US20150273380A1

公开(公告)日：2015-10-01

申请号：US14667998

申请日：2015-03-25

Applicant: NGK Insulators, Ltd.

Inventor： Satoshi SAKASHITA ,  Hiroyuki NAGAOKA

IPC: B01D46/24 ,  B01J35/10 ,  B01D53/94 ,  B01J35/04 ,  C04B38/00 ,  C04B38/06

CPC classification number: B01D46/2425 ,  B01D46/0001 ,  B01D46/2429 ,  B01D53/94 ,  B01D2046/2433 ,  B01D2046/2496 ,  B01J35/04 ,  B01J35/10 ,  B29D99/0089 ,  B33Y10/00 ,  B33Y80/00 ,  C04B28/24 ,  C04B35/565 ,  C04B35/62625 ,  C04B35/6365 ,  C04B38/0006 ,  C04B38/009 ,  C04B38/06 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3826 ,  C04B2235/428 ,  C04B2235/6022 ,  C04B2235/6026 ,  C04B2235/606 ,  C04B38/0054 ,  C04B38/0074 ,  C04B14/324 ,  C04B14/4656 ,  C04B24/02

Abstract: A porous body constituting a porous partition wall 44 of a honeycomb filter 30 has a porosity P of 20% to 60%, a permeability k of 1 μm2 or more and satisfies k≧0.2823 P−10.404. The porous body is obtained by a method for producing, for example, includes (a) a step of acquiring porous body data representing a temporary porous body having porosity higher than target porosity, (b) a step of deriving information about a flow rate for each space voxel during passage of a fluid through inside of the porous body, (c) a step of preferentially replacing the voxel having a low flow rate among the space voxels with the object voxel, and adjusting the porosity of the porous body data to the target porosity, and (d) a step of forming a porous body based on the porous body data after replacement.

Abstract translation: 构成蜂窝过滤器30的多孔分隔壁44的多孔体的孔隙率P为20〜60％，磁导率k为1μm以上，满足k≥0.22823P-10.404。 多孔体可以通过例如（a）获取多孔体数据的步骤来获得，所述多孔体数据表示具有高于目标孔隙率的孔隙率的临时多孔体，（b）获得关于流速的信息的步骤， 每个空间体素在流体通过多孔体的内部时，（c）优先用物体体素替换具有低流速的体素的体素的步骤，并且将多孔体数据的孔隙率调整到 目标孔隙率，（d）基于更换后的多孔体数据形成多孔体的工序。

公开(公告)号：US20140338435A1

公开(公告)日：2014-11-20

申请号：US14450589

申请日：2014-08-04

Applicant: NGK Insulators, Ltd.

Inventor： Satoshi SAKASHITA ,  Masayuki UCHIDA

IPC: F01N11/00 ,  G01L19/00 ,  B25B11/00

CPC classification number: F01N11/00 ,  B01D46/0002 ,  B25B11/00 ,  B25J15/08 ,  F01N3/28 ,  G01L19/0007

Abstract: A holding jig has a tubular jig base member, and a tubular expansion/contraction member disposed on an inner peripheral surface side of the tubular jig base member. Both end sides of the tubular expansion/contraction member are fixed to both end sides of the tubular jig base member along the whole periphery. A configuration of an inner peripheral surface of the tubular expansion/contraction member is smaller than a surface configuration of a pillar-like body (a honeycomb structure) to be held. On the other hand, a configuration of an inner peripheral surface of the tubular jig base member is larger than the surface configuration of the pillar-like body (the honeycomb structure) to be held.

Abstract translation: 保持夹具具有管状夹具基部构件和设置在管状夹具基部构件的内周面侧的管状膨胀/收缩构件。 管状膨胀收缩部件的两端部沿着整个周边固定在管状夹具基体的两端。 管状伸缩构件的内周面的构造小于要保持的柱状体（蜂窝结构体）的表面形状。 另一方面，管状夹具基体的内周面的构造大于要保持的柱状体（蜂窝结构体）的表面形状。

公开(公告)号：US20170102312A1

公开(公告)日：2017-04-13

申请号：US15258246

申请日：2016-09-07

Applicant: NGK INSULATORS, LTD.

Inventor： Yukio MIYAIRI ,  Satoshi SAKASHITA ,  Kazuya MORI ,  Naoki YOSHIDA ,  Shingo SOKAWA ,  Kenji SUZUKI

IPC: G01N15/08 ,  B01D46/24

CPC classification number: G01N15/082 ,  B01D46/2459 ,  B01D46/247 ,  B01D2273/18 ,  G01N2015/084

Abstract: A CPU of an analysis apparatus performs a fluid analysis and derives transient distribution information that represents an accumulation distribution of a particulate layer on an inflow-side inner circumferential surface of a honeycomb structure at a time point after a short time interval Δt (step S130). The CPU then repeatedly performs a fluid analysis by taking into account the transient distribution information derived previous time to repeatedly derive transient distribution information (steps S130 to S150) and then derives post-transient-analysis distribution information that represents the accumulation distribution of the particulate layer at a later time point (step S160).

公开(公告)号：US20170072589A1

公开(公告)日：2017-03-16

申请号：US15259417

申请日：2016-09-08

Applicant: NGK INSULATORS, LTD.

Inventor： Satoshi SAKASHITA ,  Masayuki UCHIDA

IPC: B28B1/00 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B28B1/001 ,  B01D46/2418 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  F01N3/0222 ,  F01N3/2828 ,  F01N2330/06

Abstract: A method for manufacturing a porous body includes a structure forming step that is repeatedly performed a plurality of times and includes: a pore-forming material placing step of placing a pore-forming material 50 for forming pores in the porous body; an aggregate placing step of placing aggregate particles 51 which are part of raw materials of the porous body; a binder placing step of placing binder particles 52 which are part of the raw materials of the porous body; and a binding step of heat-fusing at least part of the placed binder particles 52 to bind aggregate particles 51 together.

Abstract translation: 多孔体的制​​造方法包括重复进行多次的结构形成工序，其特征在于，包括：在所述多孔体中配置用于形成孔的成孔材料50的造孔材料配置工序; 聚集放置步骤，放置作为多孔体的原料的一部分的聚集粒子51; 将作为多孔体的原料的一部分的粘合剂粒子52配置的粘合剂配置工序; 以及将至少部分所放置的粘合剂颗粒52热熔融以将骨料颗粒51粘合在一起的结合步骤。

公开(公告)号：US20170072588A1

公开(公告)日：2017-03-16

申请号：US15258274

申请日：2016-09-07

Applicant: NGK INSULATORS, LTD.

Inventor： Satoshi SAKASHITA ,  Hiroyuki NAGAOKA

IPC: B28B1/00 ,  B33Y80/00 ,  B33Y30/00 ,  B33Y10/00

CPC classification number: B28B1/001 ,  B01D46/2418 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  C04B38/0006 ,  F01N3/0222 ,  F01N3/2828 ,  F01N2330/06

Abstract: A method for manufacturing a honeycomb structure according to the present invention is a method for manufacturing a honeycomb structure provided with partitions forming a plurality of cells. This manufacturing method includes a structure formation process including a pore-forming material placement step of placing a pore-forming material for forming pores in the partitions, a raw material placement step of placing tabular grains and raw material grains such that the tabular grains are arranged in a predetermined direction with respect to the partition surfaces while the tabular grains and the raw material grains constitute a raw material for forming the partitions, and a sintering step of sintering the placed raw material. The honeycomb structure is produced by repeating the structure formation process a plurality of times.

Abstract translation: 根据本发明的蜂窝结构体的制造方法是具有形成多个单元的隔壁的蜂窝结构体的制造方法。 该制造方法包括：结构形成工序，其包括在分隔壁内配置用于形成孔的成孔材料的成孔材料配置工序;将原料粒子排列成平板状的原料粒子的原料配置工序 在板状颗粒和原料颗粒构成用于形成隔壁的原料的同时相对于分隔面在预定方向上，以及烧结放置的原料的烧结步骤。 通过多次重复结构形成处理来制造蜂窝结构体。

公开(公告)号：US20160307318A1

公开(公告)日：2016-10-20

申请号：US15086684

申请日：2016-03-31

Applicant: NGK INSULATORS, LTD.

Inventor： Ayaka SAKAI ,  Satoshi SAKASHITA ,  Hiroyuki NAGAOKA

IPC: G06T7/00 ,  G06T7/60 ,  G06T15/08

CPC classification number: G06T7/0014 ,  G06T7/0004 ,  G06T7/60 ,  G06T7/74 ,  G06T15/08 ,  G06T2200/04 ,  G06T2207/30004

Abstract: A method for analyzing a microstructure of a porous body is, for example, a method using porous-body data in which positional information providing a position of a voxel of a porous body obtained by three-dimensional scanning is associated with voxel type information including information that allows determination as to whether the voxel is a spatial voxel representing a space or an object voxel representing an object. This method includes (a) a step of defining an imaginary surface that is in contact with at least one object voxel present on a surface of the porous body, and identifying, as opening-related voxels, spatial voxels that are in contact with the imaginary surface and spatial voxels that continuously lie in a linear direction from the imaginary surface; and (b) a step of analyzing a microstructure of the porous body on a basis of the opening-related voxels.

Abstract translation: 用于分析多孔体的微细结构的方法例如是使用多孔体数据的方法，其中提供通过三维扫描获得的多孔体的体素的位置的位置信息与包括信息的体素型信息相关联 这允许确定体素是表示空间的空间体素还是表示对象的对象体素。 该方法包括（a）限定与存在于多孔体的表面上的至少一个物体体素相接触的虚拟表面的步骤，并且将作为开口相关体素的体素识别为与假想面接触的空间体素 从虚拟表面连续地位于线性方向的表面和空间体素; 和（b）基于开口相关体素分析多孔体的微观结构的步骤。

公开(公告)号：US20160290943A1

公开(公告)日：2016-10-06

申请号：US15082227

申请日：2016-03-28

Applicant: NGK INSULATORS, LTD.

Inventor： Satoshi SAKASHITA ,  Shingo SOKAWA ,  Rishun KIN ,  Norihisa FUJIE

IPC: G01N25/18

Abstract: Object information representing a honeycomb structure with a plurality of meshes is obtained, and an inner-wall-surface heat transfer coefficient hs, i.e., a heat transfer coefficient between an inner wall surface of a cell and a fluid, is derived as follows. First, one of the meshes as a target for derivation of the inner-wall-surface heat transfer coefficient hs is set (S200), and a dimensionless coordinate X* is derived on the basis of position information (X-coordinate) of the set mesh and fluid state information (S210). An inner-wall-surface dimensionless heat transfer coefficient Nus corresponding to the derived dimensionless coordinate X* is then derived on the basis of the inner-wall-surface dimensionless correspondence information (S220 to S250). The inner-wall-surface heat transfer coefficient hs in the mesh set as the derivation target is then derived on the basis of the derived inner-wall-surface dimensionless heat transfer coefficient Nus (S260).

Abstract translation: 获得表示具有多个网格的蜂窝结构体的对象信息，并且导出内壁面传热系数hs，即，单元的内壁面与流体之间的传热系数如下。 首先，设定作为导出内壁面传热系数hs的目标的网格之一（S200），并且基于该集合的位置信息（X坐标）导出无量纲坐标X * 网状和流体状态信息（S210）。 然后基于内壁面无量纲对应信息（S220〜S250）导出与导出的无量纲坐标X *对应的内壁面无量纲传热系数Nus。 然后基于导出的内壁面无量纲传热系数Nus导出作为导出目标的网格中的内壁表面传热系数hs（S260）。

公开(公告)号：US20160061758A1

公开(公告)日：2016-03-03

申请号：US14836072

申请日：2015-08-26

Applicant: NGK Insulators, Ltd.

Inventor： Takahiko NAKATANI ,  Akifumi KAWAKAMI ,  Masaaki ITO ,  Yuki FUKUMI ,  Satoshi SAKASHITA

IPC: G01N25/72 ,  G01K7/02 ,  G01J5/02

CPC classification number: G01K7/02 ,  G01J5/02 ,  G01N3/60 ,  G01N2203/0062

Abstract: A ceramic body is heated to a predetermined temperature by using a furnace, and a cooling gas is ejected toward a first end face of the ceramic body so that the first end face of the ceramic body is cooled. At this time, the temperature of the first end face of the ceramic body is measured by a radiation thermometer provided on the same side from which the cooling gas is ejected, and the internal temperature is measured by a thermocouple provided in the ceramic body. Thereafter, a thermal shock resistance test in which actual use conditions are simulated is performed by obtaining the temperature gradient of the ceramic body from measurement results of the temperature of the first end face of the ceramic body and the internal temperature and checking the absence or presence of cracks that occurs to the ceramic body.

Abstract translation: 通过使用炉将陶瓷体加热至规定的温度，向陶瓷体的第一端面喷射冷却气体，使陶瓷体的第一端面冷却。 此时，陶瓷体的第一端面的温度由设置在冷却气体的同一侧的辐射温度计测定，内部温度由设置在陶瓷体中的热电偶测定。 此后，通过从陶瓷体的第一端面的温度和内部温度的测量结果获得陶瓷体的温度梯度来进行模拟实际使用条件的耐热冲击试验，并且检查不存在或存在 的陶瓷体发生裂纹。