公开(公告)号：EP3281927A1

公开(公告)日：2018-02-14

申请号：EP16776431.5

申请日：2016-03-28

申请人： Kabushiki Kaisha Toshiba, Inc. ,  Toshiba Materials Co., Ltd.

发明人： IKEDA, Isao ,  FUNAKI, Kai ,  ABE, Yutaka

IPC分类号： C04B35/584 ,  F16C33/32

CPC分类号： C04B35/584 ,  B23K35/3601 ,  C04B35/64 ,  F16C19/00 ,  F16C33/32 ,  F16C2202/20

摘要： A sintered silicon nitride object which comprises crystal grains of silicon nitride and a grain boundary phase, characterized in that the crystal grains of silicon nitride each are covered with the grain boundary phase and the grain boundary phase has a width of 0.2 nm or greater. Preferably, the width of the grain boundary phase is 0.2-5 nm. The content of the grain boundary phase is preferably 15 mass% or less. Due to the constitution, it is possible to provide a sintered silicon nitride object in which the grain boundary phase can be inhibited from deteriorating in high-temperature environments and which has high durability at high temperatures. This sintered silicon nitride object is suitable for use as a material constituting high-temperature-durable members to be used at a surrounding temperature of 300°C or higher.

摘要翻译： 包含氮化硅晶粒和晶界相的烧结氮化硅物体，其特征在于氮化硅晶粒各自被晶界相覆盖，晶界相的宽度为0.2nm或更大。 优选地，晶界相的宽度为0.2-5nm。 晶界相的含量优选为15质量％以下。 由此，可以提供能够抑制高温环境下的晶界相的劣化，高温下的耐久性高的烧结氮化硅制物体。 该烧结氮化硅物质适合用作构成在300℃以上的环境温度下使用的耐高温部件的材料。

公开(公告)号：EP3498414A1

公开(公告)日：2019-06-19

申请号：EP17839379.9

申请日：2017-08-04

申请人： Osaka University ,  Toshiba Materials Co., Ltd.

发明人： FUJII, Hidetoshi ,  MORISADA, Yoshiaki ,  FUNAKI, Kai ,  IKEDA, Isao ,  ABE, Yutaka ,  KATO, Masahiro

IPC分类号： B23K20/12 ,  C04B35/584

摘要： The purpose of the invention is to provide an operation pedal that can be made lightweight while ensuring necessary strength, and that can also be reduced in cost. A solution is an operation pedal (10) rotatably supported by a vehicle-body-side member in a vehicle, the operation pedal comprising an arm part (13) that extends in a length direction from a base end part (11) serving as a center of rotation to a tip end part (12) to which an operation force is applied. The arm part (13) is constituted by: a trunk (130) formed in a hollow pipe shape; and reinforcement ribs (131) provided along the length direction of the trunk (130).

公开(公告)号：EP3498415A1

公开(公告)日：2019-06-19

申请号：EP17839380.7

申请日：2017-08-04

申请人： Osaka University ,  Toshiba Materials Co., Ltd.

发明人： FUJII, Hidetoshi ,  MORISADA, Yoshiaki ,  FUNAKI, Kai ,  IKEDA, Isao ,  ABE, Yutaka ,  KATO, Masahiro

IPC分类号： B23K20/12 ,  C04B35/584 ,  C04B37/02

摘要： The friction stir welding tool member according to the present invention is characterized by comprising a ceramic member in which a shoulder part and a probe are integrally formed, wherein a base section of the probe part and the end of the shoulder part both have a curved surface shape, and when a curvature radius of the end of the shoulder part is defined as R1 (mm) and the outer diameter of the shoulder is defined as D (mm), R1/D is 0.02-0.20. In addition, the ceramic member is preferably made of a silicon nitride sintered compact having a Vickers hardness of at least 1400HV1. According to this configuration, the present invention is able to provide a friction stir welding tool member that has excellent durability.

公开(公告)号：EP3199290A1

公开(公告)日：2017-08-02

申请号：EP15845445.4

申请日：2015-08-28

申请人： Kabushiki Kaisha Toshiba ,  Toshiba Materials Co., Ltd.

发明人： IKEDA, Isao ,  FUNAKI, Kai ,  ABE, Yutaka

IPC分类号： B23K20/12 ,  C04B35/58

CPC分类号： B23K20/1255 ,  B23K20/12 ,  B23K20/122 ,  B28B3/003 ,  C04B35/58 ,  C04B35/587 ,  C04B35/6261 ,  C04B35/6303 ,  C04B35/6455 ,  C04B2235/3222 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3418 ,  C04B2235/3826 ,  C04B2235/3839 ,  C04B2235/3856 ,  C04B2235/386 ,  C04B2235/3865 ,  C04B2235/3873 ,  C04B2235/3886 ,  C04B2235/5436 ,  C04B2235/6021 ,  C04B2235/6567 ,  C04B2235/6584 ,  C04B2235/661

摘要： A welding tool member for friction stir welding, which is formed from a silicon nitride sintered body, and which is characterized in that the silicon nitride sintered body contains an additional component other than silicon nitride in an amount of 15% by mass or less and the additional component contains three or more elements selected from among Y, Al, Mg, Si, Ti, Hf, Mo and C. It is preferable that the content of the additional component is from 3% by mass to 12.5% by mass (inclusive). It is also preferable that a sintering assistant component contains four or more elements selected from among Y, Al, Mg, Si, Ti, Hf, Mo and C. Due to the above-mentioned configuration, this welding tool member for friction stir welding is able to have high durability.

摘要翻译： 一种由氮化硅质烧结体构成的摩擦搅拌接合用焊接工具部件，其特征在于，氮化硅质烧结体含有15质量％以下的氮化硅以外的添加成分， 其他成分含有选自Y，Al，Mg，Si，Ti，Hf，Mo和C中的三种以上的元素。其他成分的含量优选为3质量％以上且12.5质量％以下， 。 烧结助剂成分优选含有选自Y，Al，Mg，Si，Ti，Hf，Mo和C中的四种以上的元素。根据上述构成，该摩擦搅拌接合用焊接工具部件为 能够具有高耐久性。

公开(公告)号：EP3281927B1

公开(公告)日：2020-02-19

申请号：EP16776431.5

申请日：2016-03-28

申请人： Kabushiki Kaisha Toshiba ,  Toshiba Materials Co., Ltd.

发明人： IKEDA, Isao ,  FUNAKI, Kai ,  ABE, Yutaka

IPC分类号： B23K35/36 ,  C04B35/584 ,  F16C33/32