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1. 发明授权

EP3088375B1 SINTERED SIALON OBJECT AND CUTTING INSERT 有权转让
公开(公告)号：EP3088375B1
公开(公告)日：2020-02-05
申请号：EP13879251.0
申请日：2013-12-27
申请人： NGK SPARK PLUG CO., LTD.
发明人： TOYODA, Ryoji , KIKKAWA, Fumihiro
IPC分类号： C04B35/599 , B24D18/00

2. 发明公开

EP3088375A1 SINTERED SIALON OBJECT AND CUTTING INSERT 有权转让
标题翻译： SIALONGESINTERTERKÖRPERUND SCHNEIDEEINSATZ
公开(公告)号：EP3088375A1
公开(公告)日：2016-11-02
申请号：EP13879251.0
申请日：2013-12-27
申请人： NGK SPARK PLUG CO., LTD.
发明人： TOYODA, Ryoji , KIKKAWA, Fumihiro
IPC分类号： C04B35/599
摘要： The present invention is to provide a sialon sintered body and a cutting insert having breakage resistance, VB wear resistance and boundary wear resistance. The sialon sintered body includes a β-sialon (S 16-Z Al z O z N 8-Z ), and at least one polytype sialon selected from a group consisting of 12H-sialon, 15R-sialon, and 21 R-sialon, wherein a Z value is 0.4 or greater and 1.0 or less, a proportion of a total of peak intensities of each polytype sialon to a total of peak intensities of each sialon, which is obtained by X-ray diffraction analysis, is 10% or greater and 50% or less, the sialon sintered body includes at least one rare earth element B selected from a group consisting of La and Ce, and at least one rare earth element C selected from a group consisting of Y, Nd, Sm, Eu, Gd, Dy, Er, Yb, and Lu, a molar ratio of the rare earth element B and the rare earth element C is 1.0:0.06 to 1.0:3.5 in terms of an oxide, and a total content of the rare earth element B and the rare earth element C is 0.8 mol% or greater and 4.0 mol% or less in terms of an oxide.
摘要翻译：本发明提供一种赛隆烧结体和具有耐断裂性，VB耐磨性和边界耐磨性的切削刀片。赛隆烧结体包括β-赛隆（S 16-Z Al z O z N 8-Z）和至少一种选自由12H-赛隆，15R-赛隆和21R-赛隆组成的组的多型赛隆，其中Z值为0.4以上且1.0以下，通过X射线衍射分析得到的各聚合型赛隆的峰强度的合计与各赛隆的峰值强度的总和的比例为10％以上和50％以下，所述赛隆烧结体包括选自La和Ce中的至少一种稀土元素B和至少一种稀土元素C，其选自Y，Nd，Sm，Eu， Gd，Dy，Er，Yb和Lu中，稀土元素B和稀土元素C的摩尔比以氧化物换算为1.0:0.06〜1.0:3.5，稀土元素B的总含量稀土类元素C以氧化物计为0.8mol％以上且4.0mol％以下。

3. 发明公开

EP2308620A1 CUTTING INSERT AND CUTTING TOOL 审中-公开
标题翻译： SCHNEIDEEINSATZ UND SCHNEIDEWERKZEUG
公开(公告)号：EP2308620A1
公开(公告)日：2011-04-13
申请号：EP09800165.4
申请日：2009-03-30
申请人： NGK Spark Plug Co., Ltd.
发明人： ABUKAWA, Kohei , URASHIMA, Kazuhiro , SUZUKI, Yusuke , ITO, Tatsuya , TOYODA, Ryoji , KAMIKAWA, Koji
IPC分类号： B23B27/14 , B23B27/18 , C04B35/10 , C04B35/80
CPC分类号： B23B27/141 , B23B2224/04 , B23B2226/18 , B23B2226/72 , B23B2228/61 , C04B35/10 , C04B35/80 , Y10T407/27
摘要： Provided are a cutting insert and a cutting tool, capable of maintaining cutting performance for a long time . The cutting insert has a cutting blade made of a ceramic including the base and the cutting blade integrated with each other, wherein the base has a first coefficient of thermal expansion larger than a second coefficient of thermal expansion that the cutting blade has; and a difference between the first coefficient and the second coefficient is from more than 0 ppm to not more than 3 ppm.
摘要翻译：提供了能够长时间保持切割性能的切削刀片和切削工具。所述切削刀片具有由陶瓷构成的切削刀片，所述切削刀片包括所述基座和所述切割刀片彼此一体化，其中所述基座具有大于所述切割刀片具有的第二热膨胀系数的第一热膨胀系数; 并且第一系数和第二系数之间的差为大于0ppm至不大于3ppm。

4. 发明授权

EP2138252B1 INSERT AND CUTTING TOOL 有权转让
标题翻译：插入和切割工具
公开(公告)号：EP2138252B1
公开(公告)日：2017-08-09
申请号：EP08722206.3
申请日：2008-03-14
申请人： NGK Spark Plug Co., Ltd.
发明人： TOYODA, Ryoji , SUZUKI, Yusuke , HATANO, Yuki
IPC分类号： B23B27/14 , C04B35/584
CPC分类号： B23B27/148 , B23C2226/73 , C04B35/5935 , C04B35/597 , C04B2235/3206 , C04B2235/3217 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3244 , C04B2235/3869 , C04B2235/3873 , C04B2235/3878 , C04B2235/5445 , C04B2235/656 , C04B2235/6567 , C04B2235/658 , C04B2235/723 , C04B2235/75 , C04B2235/766 , C04B2235/767 , C04B2235/80 , C04B2235/85 , C04B2235/96 , C04B2235/9607 , Y10T407/27

5. 发明公开

EP2138252A1 INSERT AND CUTTING TOOL 有权转让
标题翻译： EINSATZ UND SCHNEIDWERKZEUG
公开(公告)号：EP2138252A1
公开(公告)日：2009-12-30
申请号：EP08722206.3
申请日：2008-03-14
申请人： NGK Spark Plug Co., Ltd.
发明人： TOYODA, Ryoji , SUZUKI, Yusuke , HATANO, Yuki
IPC分类号： B23B27/14 , C04B35/584
CPC分类号： B23B27/148 , B23C2226/73 , C04B35/5935 , C04B35/597 , C04B2235/3206 , C04B2235/3217 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3244 , C04B2235/3869 , C04B2235/3873 , C04B2235/3878 , C04B2235/5445 , C04B2235/656 , C04B2235/6567 , C04B2235/658 , C04B2235/723 , C04B2235/75 , C04B2235/766 , C04B2235/767 , C04B2235/80 , C04B2235/85 , C04B2235/96 , C04B2235/9607 , Y10T407/27
摘要： An insert includes a silicon nitride sintered body including β-Si 3 N 4 as a main component, Mg, and a rare-earth element Re (Y, La, Ce, Er, Dy, Yb). A content of Mg in terms of MgO is 1.0-7.0 mol%, a content of Re in terms of an oxide thereof is 0.4-1.0 mol%, and a total content of Mg and Re is from 1.7 to less than 7.5 mol%. The insert has a graded composition in which oxygen content increases from a surface of the sintered body toward an inside thereof such that 0.8-1.5 mass% of oxygen is contained in a region of less than 0.5 mm inside from the surface, 1.1-2.3 mass% of oxygen is contained in a region of 0.5 mm or more inside from the surface, and a difference in oxygen content between the regions is 0.1-1.0 mass%.
摘要翻译：插入体包括以二氧化硅烧结体为主成分的Si 3 N 4，Mg和稀土元素Re（Y，La，Ce，Er，Dy，Yb）。以MgO计的Mg含量为1.0〜7.0摩尔％，其氧化物的Re含量为0.4〜1.0摩尔％，Mg和Re的总含量为1.7〜小于7.5摩尔％。插入物具有从烧结体的表面朝向内部的氧含量增加的等级组成，使得在表面内侧的小于0.5mm的区域中含有0.8〜1.5质量％的氧，1.1-2.3质量％在表面内侧的0.5mm以上的区域含有氧的比例，区域之间的氧含量差为0.1〜1.0质量％。

6. 发明授权

EP3202751B1 SIALON SINTERED BODY AND CUTTING INSERT 有权转让
公开(公告)号：EP3202751B1
公开(公告)日：2019-11-20
申请号：EP15845846.3
申请日：2015-09-29
申请人： NGK Spark Plug Co., Ltd.
发明人： TOYODA, Ryoji , KIKKAWA, Fumihiro , KOMURA, Atsushi
IPC分类号： C04B35/599 , B23B27/14 , B23C5/16 , C04B35/626 , C04B35/638 , C04B35/645

7. 发明公开

EP2407442A1 SIALON SINTERED BODY AND CUTTING INSERT 有权转让
标题翻译： SIALONGESINTERTER身体和切削刀片
公开(公告)号：EP2407442A1
公开(公告)日：2012-01-18
申请号：EP10750595.0
申请日：2010-03-11
申请人： NGK Spark Plug Co., Ltd.
发明人： NAKAYAMA, Hiroko , TOYODA, Ryoji
IPC分类号： C04B35/599 , B23B27/14
CPC分类号： B23B27/148 , B23B2226/18 , C04B35/597 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3865 , C04B2235/3869 , C04B2235/3873 , C04B2235/5436 , C04B2235/5445 , C04B2235/766 , C04B2235/767 , C04B2235/80 , C04B2235/96
摘要： The present invention provides a technique of improving wear resistance of a Sialon sintered body. The Sialon sintered body has a Sialon phase including at least a β-Sialon and a 12H-Sialon among an α-Sialon, the β-Sialon and the 12H-Sialon. A ratio of a second Sialon total content, which is a sum of the contents of the α-Sialon and the 12H-Sialon, to a first Sialon total content, which is a sum of contents of the α-Sialon, the β-Sialon and the 12H-Sialon, is greater than 20% and not greater than 55%, and a ratio of the content of the 12H-Sialon to the first Sialon total content is not less than 2% and not greater than 55%.

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