公开(公告)号：US20180272428A1

公开(公告)日：2018-09-27

申请号：US15781670

申请日：2016-12-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Elizaveta Y. Plotnikov ,  Douglas E. Johnson ,  Colin McCullough ,  Jason D. Anderson ,  Gang Qi ,  Yong K. Wu ,  Sandeep K. Singh ,  Gareth A. Hughes ,  David M. Wilson ,  Anatoly Z. Rosenflanz ,  Douglas P. Goetz ,  Jordan A. Campbell ,  Fabian Stolzenburg ,  Jean A. Tangeman

IPC: B22F3/11

CPC classification number: B22F3/1118 ,  B22F3/11 ,  B22F3/1112 ,  B22F2003/1106 ,  B22F2301/052 ,  B22F2301/058 ,  C22C32/00 ,  C22C32/0089 ,  C22C47/14 ,  C22C49/04 ,  C22C49/06 ,  C22C49/14

Abstract: A method of making a porous metal matrix composite is provided. The method includes mixing a metal powder, a plurality of inorganic particles, and a plurality of discontinuous fibers to form a mixture, wherein the metal powder comprises aluminum, magnesium, an aluminum alloy, or a magnesium alloy. The method further includes sintering the mixture to form the porous metal matrix composite. Typically, the inorganic particles comprise porous particles or ceramic bubbles or glass bubbles, and the inorganic particles and the discontinuous fibers are dispersed in the metal. The metal matrix composite has a lower density than the metal and an acceptable yield strength.

公开(公告)号：US20150325337A1

公开(公告)日：2015-11-12

申请号：US14795939

申请日：2015-07-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Colin McCullough ,  Herve E. Deve ,  Michael F. Grether

IPC: H01B9/00 ,  H01B7/14 ,  H01B13/22 ,  H01B1/02 ,  H01B3/42

CPC classification number: H01B9/006 ,  H01B1/02 ,  H01B3/427 ,  H01B7/045 ,  H01B7/14 ,  H01B7/182 ,  H01B9/003 ,  H01B13/00 ,  H01B13/22 ,  Y10T29/49117 ,  Y10T29/49195 ,  Y10T29/49201

Abstract: An insulated composite power cable having a wire core defining a common longitudinal axis, a multiplicity of composite wires around the wire core, and an insulative sheath surrounding the composite wires. In some embodiments, a first multiplicity of composite wires is helically stranded around the wire core in a first lay direction at a first lay angle defined relative to a center longitudinal axis over a first lay length, and a second multiplicity of composite wires is helically stranded around the first multiplicity of composite wires in the first lay direction at a second lay angle over a second lay length, the relative difference between the first lay angle and the second lay angle being no greater than about 4°. The insulated composite cables may be used for underground or underwater electrical power transmission. Methods of making and using the insulated composite cables are also described.

Abstract translation: 一种绝缘复合电力电缆，其具有限定公共纵向轴线的线芯，围绕所述线芯的多个复合线以及围绕所述复合线的绝缘护套。 在一些实施例中，第一多个复合线在第一铺设方向上以相对于中心纵向轴线在第一铺设长度上限定的第一铺设角度在丝芯周围螺旋绞合，并且第二多个复合线材螺旋绞合 围绕第一铺设方向的第一多个复合布线以第二铺设长度的第二铺设角度，第一铺设角度和第二施加角度之间的相对差不大于约4°。 绝缘复合电缆可用于地下或水下电力传输。 还描述了制造和使用绝缘复合电缆的方法。

公开(公告)号：US20200299815A1

公开(公告)日：2020-09-24

申请号：US16060290

申请日：2016-11-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gareth A. Hughes ,  Elizaveta Y. Plotnikov ,  David M. Wilson ,  Anatoly Z. Rosenflanz ,  Douglas P. Goetz ,  Jordan A. Campbell ,  Fabian Stolzenburg ,  Colin McCullough ,  Gang Qi ,  Yong K. Wu ,  Jean A. Tangeman ,  Jason D. Anderson ,  Sandeep K. Singh

IPC: C22C32/00 ,  C22C21/00 ,  B22F3/11 ,  B22F7/00 ,  C22C47/14 ,  C22C49/06 ,  C22C49/14

Abstract: A metal matrix composite is provided, including a metal, inorganic particles, and discontinuous fibers. The inorganic particles and the discontinuous fibers are dispersed in the metal. The metal includes aluminum, magnesium, or alloys thereof. The inorganic particles have an envelope density that is at least 30% less than a density of the metal. The metal matrix composite has a lower envelope density than the matrix metal while retaining a substantial amount of the mechanical properties of the metal.