公开(公告)号：US20220258149A1

公开(公告)日：2022-08-18

申请号：US17644836

申请日：2021-12-17

Applicant: NGK INSULATORS, LTD.

Inventor： Masahiro TOKUDA ,  Takashi NORO

IPC: B01J35/04 ,  B01J37/08 ,  B01J37/00 ,  B01J21/18 ,  H05B6/62

Abstract: A method for producing a honeycomb structure includes: a forming step of extruding a forming raw material containing a ceramic raw material mainly based on silicon carbide and metal silicon to obtain a honeycomb formed body, the honeycomb formed body comprising: an outer peripheral wall; and partition walls; a drying step of drying the honeycomb formed body to obtain a honeycomb dried body; and a firing step of firing the honeycomb dried body to obtain a honeycomb fired body. The drying step includes: a first drying step of subjecting the honeycomb formed body to dielectric drying at a frequency of from 2 to 200 MHz so that a moisture scattering rate of the honeycomb formed body after dielectric drying is from 30 to 85%; and a second drying step of subjecting the honeycomb formed body having the moisture scattering rate of from 30 to 85% to hot air drying.

公开(公告)号：US20150030510A1

公开(公告)日：2015-01-29

申请号：US14496738

申请日：2014-09-25

Applicant: NGK Insulators, Ltd.

Inventor： Kazumi MASE ,  Yoshiyuki KASAI ,  Masahiro TOKUDA

IPC: B01D53/86

CPC classification number: B01D53/8678 ,  B01D2255/806 ,  B01D2255/90 ,  B01J35/0033 ,  B01J35/04 ,  F01N3/0222 ,  F01N3/027 ,  F01N3/2026 ,  F01N3/2828 ,  F01N2240/16 ,  F01N2260/10 ,  F01N2330/06 ,  Y02T10/26

Abstract: A honeycomb structure of the present invention includes a honeycomb structure body and a pair of electrode member arranged at a side surface of the honeycomb structure body. The honeycomb structure body has an electrical resistivity of 1 to 200 Ωcm, and the respective pair of electrode members is formed into a band-like shape extending in a direction in which the cells extend. In a cross section perpendicular to the cell extending direction, one of the electrode members is arranged opposite to another of the electrode members sandwiching a center of the honeycomb structure body. One or more of slits, which being open to a side surface, are formed at the honeycomb structure body. At least the one slit is formed so as not to intersect with a straight line connecting center portions of the respective pair of electrode members in the cross section perpendicular to the cell extending direction.

Abstract translation: 本发明的蜂窝结构体包括蜂窝结构体和布置在蜂窝结构体的侧面的一对电极构件。 所述蜂窝结构体的电阻率为1〜200Ω·cm，并且，所述一对电极部件形成为沿着所述电池单元延伸的方向延伸的带状。 在与电池延伸方向垂直的截面中，电极构件中的一个与夹着蜂窝结构体的中心的电极构件的另一个相对配置。 一个或多个在侧面开口的狭缝形成在蜂窝结构体上。 至少一个狭缝形成为不与垂直于电池延伸方向的截面中的连接各对电极部件的中心部分的直线相交。

公开(公告)号：US20220258377A1

公开(公告)日：2022-08-18

申请号：US17645781

申请日：2021-12-23

Applicant: NGK INSULATORS, LTD.

Inventor： Rina YOKOI ,  Masahiro TOKUDA ,  Hironori SUZUKI

IPC: B28B3/26 ,  B01J35/04 ,  B28B11/24 ,  H05B3/00

Abstract: A method for producing a honeycomb structure includes: a forming step of extruding a forming raw material containing a ceramic raw material to obtain a honeycomb formed body, the honeycomb formed body including: an outer peripheral wall; and partition walls disposed on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells, each of the plurality of cells extending from one end face to the other end face to form a flow passage; a drying step of drying the honeycomb formed body to obtain a honeycomb dried body; and a firing step of firing the honeycomb dried body to obtain a honeycomb fired body. The forming step includes extruding the forming raw material to produce a honeycomb formed body in which a part of the partition walls is lost so that some of the cells are connected to each other.

公开(公告)号：US20160153719A1

公开(公告)日：2016-06-02

申请号：US14947428

申请日：2015-11-20

Applicant: NGK INSULATORS, LTD.

Inventor： Masahiro TOKUDA ,  Tatsuo KAWAGUCHI ,  Makoto MIYAZAKI

IPC: F28D7/00 ,  F28D7/02

CPC classification number: F28D7/0066 ,  F01M5/002 ,  F28D7/0083 ,  F28D7/022 ,  F28D7/106 ,  F28D21/0003 ,  F28D2021/0089 ,  F28F7/02 ,  F28F2265/10

Abstract: A heat exchange component includes a honeycomb structure having partition walls extending through the honeycomb structure from a first end face to a second end face to define a plurality of cells forming a through channel of a first fluid, and including a ceramic material as a main component, a covering member made of a metal and fitted into a circumference of the honeycomb structure, a tubular passing portion disposed to come in contact with a circumference of the covering member and forming a through channel of a second fluid, and a circumferential passing portion disposed in a circumference of the tubular passing portion, containing the tubular passing portion, and constituting a through channel through which a third fluid is passed to come in contact with the tubular passing portion and the covering member.

Abstract translation: 热交换部件包括蜂窝结构体，其具有从第一端面向第二端面延伸穿过所述蜂窝结构体的隔壁，以限定形成第一流体的通道的多个单元，并且包括陶瓷材料作为主要部件 ，由金属制成并装配到蜂窝结构体的圆周上的覆盖部件，设置成与覆盖部件的周边接触并形成第二流体的贯通通道的管状通过部分，以及设置在 在管状通过部分的圆周上，包含管状通过部分，并且构成通过第三流体通过的通道以与管状通过部分和覆盖部件接触。

公开(公告)号：US20220281136A1

公开(公告)日：2022-09-08

申请号：US17645470

申请日：2021-12-22

Applicant: NGK INSULATORS, LTD.

Inventor： Moriaki MATOBA ,  Masahiro TOKUDA ,  Hiroki KITABAYASHI

IPC: B28B3/26 ,  B28B11/24 ,  B01D46/24 ,  C04B38/00

Abstract: A method for producing a conductive honeycomb structure includes: a forming step of extruding a forming raw material to obtain a honeycomb formed body; a drying step of drying the honeycomb formed body to obtain a honeycomb dried body; and a firing step of firing the honeycomb dried body to obtain a honeycomb fired body. The forming step includes controlling a volume fraction of a portion that can form pores of the honeycomb formed body so that an absolute value of a difference in the volume fraction of the portion that can form the pores in predetermined regions of the honeycomb formed body relative to a previously set, predetermined porosity of the honeycomb fired body is within 0.5%. The predetermined porosity is a porosity preset for each of the predetermined regions of the honeycomb fired body.

公开(公告)号：US20160003550A1

公开(公告)日：2016-01-07

申请号：US14856640

申请日：2015-09-17

Applicant: NGK Insulators, Ltd.

Inventor： Masahiro TOKUDA ,  Tatsuo KAWAGUCHI ,  Makoto MIYAZAKI

IPC: F28D7/00

CPC classification number: F28D7/0066 ,  F01N3/0205 ,  F01N3/043 ,  F01N3/10 ,  F01N3/2882 ,  F01N2240/02 ,  F01N2260/024 ,  F28D7/0083 ,  F28D7/103 ,  F28D21/0003 ,  F28D2021/0089 ,  F28D2021/0094 ,  F28F1/06 ,  F28F1/08 ,  F28F7/02 ,  F28F21/04 ,  Y02T10/20

Abstract: To provide a heat exchanger that can control temperatures of fluids to be heat-exchanged. A heat exchanger 30 includes a honeycomb structure 1, a second fluid flow through portion 26 located at an outer periphery side of the honeycomb structure 1 serving as a flow passage for a second fluid, and a third fluid flow through portion 27 located at an outer periphery side of the second fluid flow through portion 26 serving as a flow passage for a third fluid. Cells 3 of the honeycomb structure 1 serve as a first fluid flow through portion 25 through which the first fluid passes. With the heat exchanger 30, the first fluid, the second fluid, and the third fluid can be heat-exchanged without being mixed with one another. Constituting the fluid flow passage with three flow passages allows controlling temperatures of two fluids to be heat-exchanged by the residual fluid.

Abstract translation: 提供可以控制待热交换的流体的温度的热交换器。 热交换器30包括蜂窝结构体1，位于作为第二流体的流路的蜂窝结构体1的外周侧的第二流体流通部26和位于外侧的第三流体流通部27 第二流体流过部分26的外周侧用作第三流体的流动通道。 蜂窝结构体1的细胞3用作第一流体通过部分25，第一流体通过该部分。 利用热交换器30，第一流体，第二流体和第三流体可以被热交换而不彼此混合。 通过三个流动通道构成流体流动通道允许控制两种流体的温度由剩余流体进行热交换。