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公开(公告)号：US20170274365A1
公开(公告)日：2017-09-28
申请号：US15434390
申请日：2017-02-16
Applicant: NGK INSULATORS, LTD.
Inventor： Daniel Yukichi KITAGUCHI , Toshihiro FUKUI
CPC classification number: B28B11/243 , B01J35/04 , B01J37/08 , B28B3/02 , B28B3/20 , B28B11/248 , B28B2003/203 , C04B35/64 , C04B38/0006
Abstract: The manufacturing method of the honeycomb structure includes a mounting step of mounting an extruded honeycomb formed body on a firing setter disposed on a shelf plate, and a firing step of firing the honeycomb formed body mounted on the firing setter to form the honeycomb structure, and in the mounting step, the firing setter is used in which a value obtained by dividing an area of a formed body end face of the honeycomb formed body by an area of a honeycomb mounting surface of the firing setter which faces the formed body end face and at least a part of which comes in contact with the formed body end face is in a range of 2.5 to 20.0.
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公开(公告)号：US20160243723A1
公开(公告)日：2016-08-25
申请号：US15013143
申请日：2016-02-02
Applicant: NGK INSULATORS, LTD.
Inventor： Daniel Yukichi KITAGUCHI , Takehiko WATANABE
CPC classification number: B28B3/20 , B01D46/2451 , B01J35/04 , B01J37/0009 , B01J37/08 , B28B11/08 , B28B11/12 , B28B11/243 , B28B11/248 , B28B2003/203 , C04B33/32
Abstract: A manufacturing method of the honeycomb structure has a forming step of forming a honeycomb formed body having partition walls defining a plurality of cells; a convex end portion forming step of forming a convex end portion including a convex end face in the obtained honeycomb formed body; a mounting step of directing downward one end face on which the convex end portion is formed and mounting the honeycomb formed body on a shelf plate; a firing step of firing the honeycomb formed body mounted on the shelf plate to form a honeycomb fired body; and an end face grinding step of grinding one end face of the honeycomb fired body to remove the convex end portion.
Abstract translation: 蜂窝结构体的制造方法具有形成蜂窝成形体的成形工序，所述蜂窝成形体具有限定多个单元的分隔壁; 在所获得的蜂窝成形体中形成凸起端面的凸部端部形成工序; 将形成有凸起端部的一个端面向下方引导的安装工序，将蜂窝成形体安装在搁板上; 烧制安装在搁板上的蜂窝成形体的烧成工序，形成蜂窝烧制体; 以及端面研磨工序，研磨蜂窝烧制体的一个端面以去掉凸出的端部。
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Patent Agency Ranking
公开(公告)号：US20240003627A1
公开(公告)日：2024-01-04
申请号：US18331256
申请日：2023-06-08
Applicant: NGK INSULATORS, LTD.
Inventor： Daniel Yukichi KITAGUCHI , Tatsuya KINOSHITA , Masami SATO
CPC classification number: F27B9/12 , F27D9/00 , F28C3/005 , F27B2009/126 , F27D2009/0075
Abstract: A heating furnace includes a plurality of heat storage coolers capable of introducing a cooling gas into an inside of the furnace and sucking an in-furnace gas; wherein each of the plurality of heat storage coolers includes a gas nozzle in communication with the inside of the furnace; a gas port in communication with an outside of the furnace and connected to a gas piping system that is capable of switching between supplying gas to the heat storage cooler and exhausting gas from the heat storage cooler; a gas passage communicating the gas nozzle with the gas port and having a space for filling a heat storage element; and a heat storage element filled in the space for filling the heat storage element.
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公开(公告)号：US20180215672A1
公开(公告)日：2018-08-02
申请号：US15875224
申请日：2018-01-19
Applicant: NGK INSULATORS, LTD.
Inventor： Daniel Yukichi KITAGUCHI , Nobuyuki Kashiwagi
IPC: C04B38/00 , B01J29/88 , B01J35/04 , B01J37/00 , B01J37/02 , B01J37/08 , C04B41/00 , C04B41/50 , C04B41/87 , B01D46/24 , B01D46/00
CPC classification number: C04B38/0009 , B01D46/0001 , B01D46/2429 , B01D46/2462 , B01D46/247 , B01D46/2474 , B01D2046/2433 , B01D2046/2481 , B01D2046/2485 , B01J29/88 , B01J35/04 , B01J37/0009 , B01J37/0215 , B01J37/08 , C04B41/009 , C04B41/5024 , C04B41/85 , C04B41/87 , C04B2111/00793 , C04B2111/0081 , C04B35/195 , C04B38/0074 , C04B41/4582 , C04B38/0006 , C04B41/4539 , C04B41/4572
Abstract: A manufacturing method of a honeycomb structure includes a forming step of forming a honeycomb formed body by use of a kneaded material containing a cordierite forming raw material, a slurry coating step of coating a coating layer forming slurry which contains a cordierite forming raw material on four regions in a rotation area when each of two straight lines passing through the center of gravity of the cross section and extending in a diagonal direction of main quadrangular cells is rotated in a range of ±x° of the center of gravity in a circumferential surface, and a firing step of firing the honeycomb formed body on which the slurry is coated. The value x is in a range of 7 to 45, and the slurry is adjusted so that the coating layer has a porosity higher than that of the honeycomb structure body as much as 5% or more.
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公开(公告)号：US20200300745A1
公开(公告)日：2020-09-24
申请号：US16785994
申请日：2020-02-10
Applicant: NGK INSULATORS, LTD.
Inventor： Daniel Yukichi KITAGUCHI
Abstract: A method for estimating characteristics of a ceramic fired body, the method including: preparing a ceramic fired body by firing a formed green body; measuring a color of the ceramic fired body; and with use of a correlation between the color and at least one characteristic selected from a group consisting of a porosity, a pore diameter, and a thermal expansion coefficient previously determined for a ceramic fired body having a same composition as that of the ceramic fired body, estimating the at least one characteristic of the ceramic fired body from the color of the ceramic fired body, measured in the previous step.
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公开(公告)号：US20190300444A1
公开(公告)日：2019-10-03
申请号：US16282743
申请日：2019-02-22
Applicant: NGK INSULATORS, LTD.
Inventor： Daniel Yukichi KITAGUCHI , Kouhei KATO , Shotaro MATSUMOTO
IPC: C04B38/00 , B28B11/24 , B28B11/08 , B28B11/04 , C04B35/195
Abstract: A honeycomb formed body containing a ceramics raw material, he honeycomb formed body including: a pillar shaped honeycomb structure portion having a plurality of rectangular cells, the cells being defined by partition walls and extending from a first end face to a second end face to form flow paths; an outer peripheral portion having outer peripheral portions X where the partition walls are covered with an outer peripheral wall; and outer peripheral portions Y where the partition walls are exposed. Each of the outer peripheral portions X includes a tapered portion having a gradually deceasing thickness of the outer peripheral wall toward a boundary portion with an adjacent outer peripheral portion Y. The tapered portion requires a length equal to or more than one time of an average cell pitch in the outer peripheral direction until thickness of the outer peripheral wall is halved.
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公开(公告)号：US20160243724A1
公开(公告)日：2016-08-25
申请号：US15013159
申请日：2016-02-02
Applicant: NGK INSULATORS, LTD.
Inventor： Daniel Yukichi KITAGUCHI
CPC classification number: B28B3/20 , B01D35/005 , B01J35/04 , B24B5/50 , B28B11/08 , B28B11/12 , B28B11/243 , B28B11/248 , B28B2003/203 , C04B33/32
Abstract: A manufacturing method of a honeycomb structure includes a forming step of forming a honeycomb formed body having partition walls defining a plurality of cells, a convex wall portion forming step of forming a convex wall portion in the obtained honeycomb formed body, a mounting step of directing downward one end face on which the convex wall portion is formed and mounting the honeycomb formed body on a shelf plate, a firing step of firing the honeycomb formed body mounted on the shelf plate, to form a honeycomb fired body, and a circumference grinding step of grinding a circumferential surface of the honeycomb fired body, to remove the convex wall portion.
Abstract translation: 一种蜂窝结构体的制造方法，其特征在于，包括形成蜂窝成形体的成形工序，所述蜂窝成型体具有限定多个单元的隔壁，在所述蜂窝成形体中形成凸壁部的凸壁部形成工序， 形成凸壁部的下方的一个端面，将蜂窝成形体安装在搁板上，对安装在搁板上的蜂窝成形体进行烧成，形成蜂窝烧制体的烧成工序， 研磨蜂窝烧制体的周面，去除凸壁部。
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