-
公开(公告)号：US20210291401A1
公开(公告)日：2021-09-23
申请号：US17136390
申请日：2020-12-29
Applicant: NGK INSULATORS, LTD.
Inventor： Keita ITO , Yuichi TAJIMA , Yoshimasa KONDO
Abstract: A method for producing a ceramic molded body, the method including: a molding step of subjecting a ceramic molding material to extrusion molding using an extrusion molding machine equipped with a temperature control portion to provide a ceramic molded body; a cutting step of cutting the ceramic molded body to have a predetermined length; and a dimension measuring step of measure a dimension of the cut ceramic molded body. A relationship between a temperature of the temperature control portion and the dimension of the cut ceramic molded body is previously obtained, and based on the relationship, an appropriate temperature of the temperature control portion is calculated from the dimension of the ceramic molded body measured in the dimension measuring step, and the temperature control portion is controlled to the appropriate temperature in the molding step.
-
12.发明申请METHOD FOR MANUFACTURING CERAMIC FORMED BODY, AND APPARATUS FOR MANUFACTURING CERAMIC FORMED BODY 审中-公开制造陶瓷成型体的方法及制造陶瓷成型体的装置公开(公告)号：US20160288367A1
公开(公告)日：2016-10-06
申请号：US15080873
申请日：2016-03-25
Applicant: NGK INSULATORS, LTD.
Inventor： Yuichi TAJIMA , Kensuke OKUMURA , Seiichiro HAYASHI
CPC classification number: B28B17/026 , B28B3/20 , B28B17/0081 , B28C3/00 , B28C7/026 , B28C7/0418 , B28C9/002 , C04B35/62625 , C04B35/62635 , C04B38/0009 , C04B2235/6021 , G01B11/24 , C04B35/00
Abstract: 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.
Abstract translation: 一种制造方法，包括：干式混合工序，通过间歇式干燥混合原料; 在干混合步骤中获得的干燥混合物中加入液体的湿混合步骤，所述液体包括至少一种类型的水，表面活性剂，润滑剂和增塑剂，同时湿混合; 捏合在湿混合步骤中获得的湿混合物的捏合步骤; 以及挤出在捏合步骤中获得的捏合混合物（成型原料）以形成陶瓷成形体的成形步骤。 在捏合步骤中，在混合湿混合物期间进一步加入液体。
-
13.发明公开公开(公告)号：US20240085105A1
公开(公告)日：2024-03-14
申请号：US18513900
申请日：2023-11-20
Applicant: NGK INSULATORS, LTD.
Inventor： Yoshimasa FUMA , Yuichi TAJIMA
CPC classification number: F26B3/347 , F26B15/18 , F26B2210/02
Abstract: A dielectric drying method for ceramic formed bodies includes drying a plurality of ceramic formed bodies placed side by side in an arrangement direction Y perpendicular to a conveying direction X on an upper surface of a drying table by conveying the ceramic formed bodies between electrodes of an upper electrode and a lower electrode, and applying a high frequency between the electrodes. The drying table is conveyed by a conveyor having at least one conveyor belt for supporting a portion of the drying table in the arrangement direction Y. At least one electric field adjusting member is arranged below the drying table that is not supported by the conveyor belt.
-
公开(公告)号：US20220234964A1
公开(公告)日：2022-07-28
申请号：US17659039
申请日：2022-04-13
Applicant: NGK Insulators, Ltd.
Inventor： Yoshimasa FUMA , Yuichi TAJIMA , Yoshimasa KONDO , Kensuke OKUMURA
Abstract: A dielectric drying method for ceramic formed bodies includes drying a plurality of ceramic formed bodies placed side by side in a direction perpendicular to a conveying direction on upper surfaces of drying tables by conveying the ceramic formed bodies between electrodes of an upper electrode and a lower electrode, and applying a high frequency between the electrodes. In the direction perpendicular to the conveying direction of the ceramic formed body, a distance between the electrodes in two end regions between which a central region is interposed is shorter than a distance between the electrodes in the central region.
-
公开(公告)号：US20220111558A1
公开(公告)日：2022-04-14
申请号：US17447476
申请日：2021-09-13
Applicant: NGK INSULATORS, LTD.
Inventor： Keita ITO , Yuichi TAJIMA , Yoshimasa KONDO
Abstract: An extrusion molding machine includes: a molding portion having one end and other end, the one end having a die, the other end being connected to an extrusion port of an extrusion portion, the molding portion also including a screen arranged therein. The molding portion includes: at least one first temperature controlling member between the screen and the die, the first temperature controlling member including a plurality of first zones divided in a circumferential direction. Temperatures of the plurality of first zones can be individually controlled.
-
Patent Agency Ranking
公开(公告)号：US20210388868A1
公开(公告)日：2021-12-16
申请号：US17445971
申请日：2021-08-26
Applicant: NGK INSULATORS, LTD.
Inventor： Yuichi TAJIMA , Yoshimasa KONDO
Abstract: A wear-resistant member that is slidingly contacted with a hard member, wherein the wear-resistant member is formed of an alloy in which hard particles having an average particle size of 10 to 150 μm are bonded by a bonding portion.
-
公开(公告)号：US20210107178A1
公开(公告)日：2021-04-15
申请号：US17132323
申请日：2020-12-23
Applicant: NGK INSULATORS, LTD.
Inventor： Keita ITO , Yuichi TAJIMA , Yoshimasa KONDO
Abstract: An extrusion molding machine 1, including: an extruding portion 10 having a screw 11 and a barrel 12 capable of housing the screw; a molding portion 20 having one end and other end, the one end having a die 21, and the other end being connected to an extruding port 13 of the extruding portion 10; and a rectifier 30 arranged between the extruding portion 10 and the molding portion 20. A heat insulating member 40 is further arranged between the molding portion 20 and the rectifier 30.
-
公开(公告)号：US20160001460A1
公开(公告)日：2016-01-07
申请号：US14851515
申请日：2015-09-11
Applicant: NGK Insulators, Ltd.
Inventor： Yuichi TAJIMA , Ryuji YAMAGUTI
CPC classification number: B28B3/269 , B28B3/22 , B28B3/224 , B28B2003/203 , B29C47/0004 , B29C47/0028 , B29C47/124 , B29C47/40 , B29C47/92 , B29C2947/92609
Abstract: An extrusion forming apparatus includes an extruding section, a chamber drum, and a forming section. The extruding section kneads a material including a ceramic raw material and extrudes a kneaded material. The chamber drum has a first space portion having a first extruding direction extending portion through which the kneaded material is allowed to flow in an extruding direction, and a second space portion which has a second extruding direction extending portion extending in the extruding direction and a direction changing portion bending from the extruding direction to a downward direction, to allow the kneaded material to flow in the downward direction changed from the extruding direction. The second space portion has a cross section obtained by isotropically decreasing a cross section of the first space portion perpendicular to a flow-through direction of the kneaded material. The forming section has a die to extrude a ceramic formed body.
Abstract translation: 挤出成形装置包括挤出部，室鼓和成形部。 挤出部揉合包含陶瓷原料的材料并挤出捏合材料。 室鼓具有第一空间部分，其具有第一挤出方向延伸部分，使捏合材料沿着挤出方向流动，第二空间部分具有沿挤出方向延伸的第二挤出方向延伸部分和方向 改变部分从挤出方向弯曲到向下的方向，以使得捏合材料沿向下的方向流动，从挤出方向改变。 第二空间部分具有通过各向同性地减小垂直于捏合材料的流通方向的第一空间部分的横截面而获得的横截面。 成型部具有挤出陶瓷成形体的模具。
-
公开(公告)号：US20150360407A1
公开(公告)日：2015-12-17
申请号：US14834618
申请日：2015-08-25
Applicant: NGK Insulators, Ltd.
Inventor： Eiji ITO , Yuji UEDA , Yuichi TAJIMA
CPC classification number: B29C47/0028 , B28B3/269 , B28B17/009 , B29C47/0811 , B29C47/0816 , B29C47/0822 , B29C47/0828 , B29C47/0838 , B29C47/0883 , B29C47/12 , B29C47/122 , B29C47/126 , B29C47/28 , B29C47/38
Abstract: An apparatus of the present invention is a continuous extrusion forming apparatus comprising: a screw which carries a forming raw material in the horizontal direction, the screw being built in the screw part; and a mouth piece structure for extrusion forming, which is provided on the downstream side of a screw part, wherein the mouth piece structure has a horizontal channel for extruding the forming raw material flowing in from the screw part in the horizontal direction, an extrusion channel orthogonal to the horizontal channel, and an extrusion port provided at a tip end of the extrusion channel, and wherein a mouth piece structure holder which holds the mouth piece structure is provided with a turning means which freely changes the opening direction of the extrusion port between the horizontal direction and a floor facing direction.
Abstract translation: 本发明的装置是一种连续挤出成型装置，包括：螺杆，其在水平方向上承载成形原料，所述螺钉内置在螺杆部分中; 以及设置在螺纹部的下游侧的用于挤压成形的口部件结构，其中，所述口部结构具有用于挤压从所述螺纹部在水平方向流入的成形原料的水平通道，挤出通道 与该水平通道垂直的挤压口，以及设置在该挤出通道的前端的挤出口，其中，保持上述口部构件的口部件结构体保持器设置有：转动装置，其使挤出口的开口方向自由地变化， 水平方向和面向地板的方向。
-
公开(公告)号：US20130078326A1
公开(公告)日：2013-03-28
申请号：US13623990
申请日：2012-09-21
Applicant: NGK Insulators, Ltd.
Inventor： Yuichi TAJIMA , Masashi ONO
IPC: B29C47/08
CPC classification number: B28B3/22 , B28B11/161 , B29C47/0028 , B29C47/0035 , B29C47/0076
Abstract: An extruder comprises an extruding section, a chamber drum, and a forming section. The extruding section kneads and extrudes a kneaded material including a ceramic raw material. The chamber drum includes a first space portion which extends from the extrusion port side of the extruding section in an extruding direction and allows the kneaded material to flow in the extruding direction, and a second space portion which extends from a downstream side of the first space portion in a downward direction, allows the kneaded material to flow in the downward direction different from the extruding direction, and has a discharge port to discharge the kneaded material. The forming section includes a die through which the kneaded material discharged through the discharge port of the chamber drum is pushed out, to extrude and form ceramic formed bodies.
Abstract translation: 挤出机包括挤出部分，室鼓和成形部分。 挤出部分捏合并挤出包括陶瓷原料的捏合材料。 室鼓包括第一空间部分，其沿挤出方向从挤出部分的挤出口侧延伸并允许捏合材料沿挤出方向流动，第二空间部分从第一空间的下游侧延伸 使捏合材料沿与挤出方向不同的向下方向流动，并且具有用于排出捏合材料的排出口。 成形部包括将从室鼓的排出口排出的混炼物推出的模具，挤出并形成陶瓷成形体。
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.019 seconds)
