公开(公告)号：US20150170846A1

公开(公告)日：2015-06-18

申请号：US14571739

申请日：2014-12-16

申请人： General Electric Company

发明人： Mohandas NAYAK ,  Nagaveni KARKADA ,  Shalini THIMMEGOWDA ,  Mallikarjuna Heggadadevanapura THAMMAIAH ,  Janakiraman NARAYANAN ,  Linda Yvonne JACOBS

IPC分类号： H01H1/021 ,  H01H1/023 ,  H01H1/0233 ,  H01H1/0237 ,  B22F5/00 ,  B22F7/00 ,  B22F7/02 ,  B22F3/04 ,  B22F3/12 ,  H01H1/025 ,  H01H11/04

CPC分类号： H01H1/021 ,  B22F3/04 ,  B22F3/105 ,  B22F3/12 ,  B22F3/14 ,  B22F3/16 ,  B22F5/00 ,  B22F7/06 ,  B22F2999/00 ,  C22C32/0021 ,  C22C32/0047 ,  C22C32/0084 ,  H01H1/0233 ,  H01H1/0237 ,  H01H1/025 ,  H01H11/048 ,  B22F3/10 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2207/01

摘要： A circuit breaker having a monolithic structure and method of making is disclosed. The monolithic structure includes an arm portion having copper and a contact portion having a composite material. The composite material has a metallic matrix and a second phase disposed in the metallic matrix. The method of making the monolithic structure includes introducing a first powder into a first region of a mold, introducing a second powder into a second region of the mold, and consolidating the first powder and the second powder together. The first region of the mold corresponds to a contact portion, and the second region corresponds to an arm portion of the monolithic structure of the circuit breaker.

摘要翻译： 公开了一种具有整体结构和制造方法的断路器。 整体结构包括具有铜的臂部分和具有复合材料的接触部分。 复合材料具有金属基体和设置在金属基体中的第二相。 制造整体结构的方法包括将第一粉末引入模具的第一区域，将第二粉末引入模具的第二区域，并将第一粉末和第二粉末固结在一起。 模具的第一区域对应于接触部分，并且第二区域对应于断路器的整体结构的臂部分。

公开(公告)号：US20150048054A1

公开(公告)日：2015-02-19

申请号：US14458296

申请日：2014-08-13

申请人： General Electric Company

发明人： Nagaveni KARKADA ,  Gopi Chandran RAMACHANDRAN ,  Thangavelu ASOKAN

IPC分类号： H01H33/10 ,  H01H11/04

CPC分类号： H01H33/10 ,  H01H1/0233 ,  H01H1/025 ,  H01H11/048 ,  Y10T29/49206

摘要： A system including a contact tip that includes an arcing surface, a base surface, and a graded structure is presented. The graded structure includes a first region comprising a first surface proximate to the arcing surface, a second region comprising a second surface proximate to the base surface, and an intermediate region disposed between the first region and the second region. A concentration of silver in the graded structure decreases from the first surface to the second surface. A method of forming a contact tip includes preparing starting materials for a first region, an intermediate region, and a second region of the contact tip. The starting materials of the first, intermediate, and second regions are sequentially added to a container to form a graded blend of starting materials. The graded blend of starting materials are compacted and heat-treated to form a contact tip having a graded structure.

摘要翻译： 提出了一种包括接触尖端的系统，其包括电弧表面，基底表面和渐变结构。 分级结构包括包括靠近电弧表面的第一表面的第一区域，包括靠近基底表面的第二表面的第二区域和设置在第一区域和第二区域之间的中间区域。 分级结构中的银浓度从第一表面减少到第二表面。 形成接触尖端的方法包括制备用于接触尖端的第一区域，中间区域和第二区域的起始材料。 将第一，中间和第二区域的起始材料依次加入到容器中以形成起始材料的分级混合物。 起始材料的分级混合物被压实和热处理以形成具有渐变结构的接触尖端。