公开(公告)号：US4915605A

公开(公告)日：1990-04-10

申请号：US350457

申请日：1989-05-11

申请人： Hing Chan ,  Brian L. Oslin ,  Raymond L. Anderson

发明人： Hing Chan ,  Brian L. Oslin ,  Raymond L. Anderson

IPC分类号： B22F3/14 ,  B22F3/15

CPC分类号： B22F3/15

摘要： A method of consolidating metal powders selected from the group consisting essentially of aluminum, aluminum alloys, and aluminum metal matrix composites includes: pressing the powder into a preform, and preheating the preform to elevated temperatures; providing a bed of flowable pressure transmitting particles; positioning the preform in such relation to the bed that the particles encompass the preform; and pressurizing the bed to compress the particles and cause pressure transmission via the particles to the preform, thereby to consolidate the body into desired shape. Typically, the metal powder has surface oxide, and such pressurizing is carried out to break up, partially or fully, the surface oxide.

公开(公告)号：US4980340A

公开(公告)日：1990-12-25

申请号：US160337

申请日：1988-02-22

申请人： Raymond L. Anderson ,  Brian L. Oslin

发明人： Raymond L. Anderson ,  Brian L. Oslin

IPC分类号： C04B35/00 ,  C01G1/00 ,  C04B35/45 ,  C04B35/64 ,  H01B13/00

CPC分类号： C04B35/4508 ,  C04B35/64 ,  Y10S505/739

摘要： The method of producing a superconducting product includes:(a) providing a pressed-powder preform consisting essentially of YBa.sub.2 Cu.sub.3 O.sub.7-x where 0.0

摘要翻译： 制造超导体产品的方法包括：（a）提供基本由YBa2Cu3O7-x组成的压粉预制件，其中0.0

公开(公告)号：US4853178A

公开(公告)日：1989-08-01

申请号：US272327

申请日：1988-11-17

申请人： Brian L. Oslin

发明人： Brian L. Oslin

IPC分类号： B22F3/15

CPC分类号： B30B11/002 ,  B22F3/15

摘要： A method of consolidating a body in any of initially powdered, sintered, fibrous, sponge, or other form capable of compaction, including the steps: providing a bed of flowable particles within a contained zone, the particulate including flowable and resiliently compressible carbonaceous particles; positioning the body in the bed, to be surrounded by the particles; effecting pressurization of the bed to cause pressure transmission via the particles to said body, thereby to compact the body into desired shape, increasing its density; the particles being heated to elevated temperature prior to compacting of the body into desired shape; and the heating of the particles being effected by passing electric current through same, with heat generated in the particles also to be transferred to the body.The electrically heated mass of particles may be fluidized; the particles may consist of graphite; and the body may consist of metal, ceramic, or synthetic resin.

摘要翻译： 一种将初始粉末状，烧结状，纤维状，海绵状或能够压实的其他形式中的任何一种的主体固结的方法，包括以下步骤：在容纳区内提供可流动颗粒床，所述颗粒包括可流动且可弹性压缩的碳质颗粒; 将身体放置在床上，被颗粒包围; 对床进行加压以通过颗粒将压力传递到所述主体，从而将本体压缩成所需形状，增加其密度; 在将本体压实成所需形状之前将颗粒加热到升高的温度; 并且通过使电流通过它们来实现颗粒的加热，由此在颗粒中产生的热也被传递到体内。 电加热的颗粒物质可以被流化; 颗粒可以由石墨组成; 并且主体可以由金属，陶瓷或合成树脂组成。

公开(公告)号：US4933140A

公开(公告)日：1990-06-12

申请号：US303641

申请日：1989-01-30

申请人： Brian L. Oslin

发明人： Brian L. Oslin

IPC分类号： B22F3/15

CPC分类号： B30B11/002 ,  B22F3/15

摘要： A method of consolidating a body in any of initially powdered, sintered, fibrous, sponge, or other form capable of compaction, including the steps: providing a bed of flowable particles within a contained zone, the particulate including flowable and resiliently compressible carbonaceous particles; positioning the body in the bed, to be surrounded by the particles; effecting pressurization of the bed to cause pressure transmission via the particles to said body, thereby to compact the body into desired shape, increasing its density; the particles being heated to elevated temperature prior to compacting of the body into desired shape; and the heating of the particles being effected by passing electric current through same, with heat generated in the particles also to be transferred to the body.The electrically heated mass of particles may be fluidized; the particles may consist of graphite; and the body may consist of metal, ceramic, or synthetic resin.

摘要翻译： 一种将初始粉末状，烧结状，纤维状，海绵状或能够压实的其他形式中的任何一种的主体固结的方法，包括以下步骤：在容纳区内提供可流动颗粒床，所述颗粒包括可流动且可弹性压缩的碳质颗粒; 将身体放置在床上，被颗粒包围; 对床进行加压以通过颗粒将压力传递到所述主体，从而将本体压缩成所需形状，增加其密度; 在将本体压实成所需形状之前将颗粒加热到升高的温度; 并且通过使电流通过它们来实现颗粒的加热，由此在颗粒中产生的热也被传递到体内。 电加热的颗粒物质可以被流化; 颗粒可以由石墨组成; 并且主体可以由金属，陶瓷或合成树脂组成。