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公开(公告)号：US09238308B2
公开(公告)日：2016-01-19
申请号：US14519653
申请日：2014-10-21
申请人： NGK Insulators, Ltd.
发明人： Keisuke Toba , Kensuke Okumura , Seiichiro Hayashi
摘要： A cutting method of a honeycomb formed body is provided. This is a cutting method of a honeycomb formed body in which, while a kneaded material containing a ceramic raw material is extruded to form a honeycomb formed body with a honeycomb shape having partition walls defining and forming a plurality of cells, the extruded honeycomb formed body is cut before drying by a cutting blade vibrated at a frequency of 0.3 kHz or more in a direction perpendicular to a direction in which this honeycomb formed body moves. It is preferably a cutting method of a honeycomb formed body in which the cutting blade is vibrated at a high frequency of 10 kHz or more.
摘要翻译： 提供了一种蜂窝成形体的切割方法。 这是一种蜂窝成型体的切割方法，其中，当将包含陶瓷原料的捏合材料挤出以形成具有限定并形成多个单元的隔壁的蜂窝形状的蜂窝成形体时，挤出的蜂窝成形体 在通过与该蜂窝成形体移动的方向垂直的方向以0.3kHz以上的频率振动的切割刀片进行干燥前，进行切割。 优选的是切割刀片以10kHz以上的高频振动的蜂窝成形体的切断方法。
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公开(公告)号：US09486794B2
公开(公告)日：2016-11-08
申请号：US14885085
申请日：2015-10-16
申请人： NGK Insulators, Ltd.
CPC分类号： B01J35/04 , B23P15/243 , B28B3/269 , B29C47/0028 , B29C47/12
摘要： A die has two surfaces, in a forming material supplying surface which is one surface, a plurality of back holes to introduce a forming material of a honeycomb formed body into the die are formed, and in a honeycomb formed body extruding surface which is the other surface, lattice-shaped slits corresponding to cell partition walls are formed, the back holes communicate with the slits in slit intersecting portions of the slits, polygonal cell blocks defined by the slits include chamfered portions in which parts of corner portions and the like are chamfered at a chamfering angle θ of 1.0 to 8.0° to the extruding direction, from the honeycomb formed body extruding surface toward a slit depth direction, and straight portions which are not chamfered, and a ratio of a length L of the straight portion to a slit depth D is from 20 to 60%.
摘要翻译： 模具具有两个表面，在形成一个表面的成形材料供给表面上形成有将蜂窝成形体的成形材料引入模具中的多个后孔，并且在作为另一个的蜂窝成形体挤出表面 形成与单元隔壁相对应的表面的格子状的狭缝，后孔与狭缝的狭缝交叉部分中的狭缝连通，由狭缝限定的多边形单元块包括倒角部分，其中角部等的部分被倒角 以与挤出方向成1.0〜8.0°的倒角角度，从蜂窝成型体挤压面向狭缝深度方向，以及未倒角的直线部分，以及直线部分与狭缝的长度L的比 深度D为20〜60％。
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3.发明授权公开(公告)号：US10252442B2
公开(公告)日：2019-04-09
申请号：US15080873
申请日：2016-03-25
申请人： NGK INSULATORS, LTD.
IPC分类号： B28B17/02 , B28C7/02 , B28C7/04 , B28B17/00 , C04B35/626 , C04B38/00 , B28B3/20 , B28C9/00 , B28C3/00 , G01B11/24
摘要： A manufacturing method includes: a dry mixing step of dry mixing a raw material by batch processing; a wet mixing step of adding liquid to a dry mixture obtained at the dry mixing step, the liquid including at least one type of water, surfactant, lubricant and plasticizer, while wet mixing; a kneading step of kneading a wet mixture obtained at the wet mixing step; and a forming step of extruding a kneaded mixture (forming raw material) obtained at the kneading step to make a ceramic formed body. In the kneading step, the liquid is further added during kneading of the wet mixture.
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公开(公告)号：US10052790B2
公开(公告)日：2018-08-21
申请号：US15077067
申请日：2016-03-22
申请人： NGK INSULATORS, LTD.
CPC分类号： B28B11/241 , B28B11/243 , F26B3/347 , F26B2210/02 , H05B6/80 , H05B2206/046
摘要： A microwave drying method of a honeycomb formed body includes: an introduction step of disposing the honeycomb formed body while keeping an axis direction of cells of the honeycomb formed body vertically and introducing the honeycomb formed body into a drying furnace capable of irradiating with microwaves; a reflector placing step of placing a microwave reflector above the honeycomb formed body, the microwave reflector including a reflecting face having a coverage factor to an area of an end face of the honeycomb formed body that is 15% to 30%; and a microwave drying step of irradiating the honeycomb formed body with the microwaves of 915 MHz in frequency from above to dry the honeycomb formed body.
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