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    74.
    发明专利
    未知

    公开(公告)号：DE69127719T2

    公开(公告)日：1998-03-05

    申请号：DE69127719

    申请日：1991-05-30

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： TANAKA SABURO ,  NAKANISHI HIDENORI ,  ITOZAKI HIDEO ,  MATSUURA TAKASHI

    IPC: H01L39/24 ,  H01L39/22

    Abstract: Improvement in a process for fabricating a superconducting junction by depositing successively a first oxide superconductor thin layer, a non-superconducting intermediate thin film layer and a second oxide superconductor thin film layer on a substrate in this order. In the ivention, the non-superconducting intermediate thin film layer is composed of MgO and the substrate is heated at a temperature between 200 and 400 DEG C during the non-superconducting intermediate thin film layer is deposited.

    Silicon Nitride Ceramic Sliding Member and Process for Producing the Same
    77.
    发明专利
    Silicon Nitride Ceramic Sliding Member and Process for Producing the Same 未知

    公开(公告)号：CA2169862A1

    公开(公告)日：1996-08-21

    申请号：CA2169862

    申请日：1996-02-20

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： YAMAGIWA MASAMICHI ,  YAMAKAWA AKIRA ,  NISHIOKA TAKAO ,  MATSUURA TAKASHI

    IPC: F16C33/24 ,  C04B35/584 ,  C04B35/593 ,  C04B41/80 ,  F01L1/14 ,  F01L3/02 ,  F16C33/04

    Abstract: A silicon nitride ceramic sliding member which comprises Si3N4 grains as a main component and is shaped or controlled in dimensions through hot plastic working wherein the Si3N4 particles mainly comprises .beta.-type columnar crystal grains. The ceramic sliding member is produced by the step (I) of preparing a preform made of silicon nitride ceramic sintered body comprising Si3N4 grains as a main component wherein the average grain size (average grain size in minor axis in the case of .beta.-type columnar crystal grains) of the Si3N4 grains is at most 0.5 .mu.m, and the hot plastic working step (II) of placing the preform in a mold and effecting hot plastic deformation of the preform for shaping or dimensional control thereof while simultaneously increasing the average aspect ratio of the .beta.-type columnar crystal grains. The resultant sliding member has excellent sliding properties, a high mechanical strength and a high reliability at a low cost without resort to grinding or the like for shaping thereof.

    Sliding Component and Method of Manufacturing the Same
    78.
    发明专利
    Sliding Component and Method of Manufacturing the Same 未知

    公开(公告)号：CA2182896A1

    公开(公告)日：1996-07-04

    申请号：CA2182896

    申请日：1995-12-25

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： MATSUURA TAKASHI ,  YAMAKAWA AKIRA

    IPC: B23K20/00 ,  C04B37/02 ,  F01L1/14 ,  F01L1/16 ,  F01L1/18 ,  F01L3/20 ,  F16C33/14

    Abstract: Object: to provide a part having a plurality of abrasion resistant sliding surfaces including engine parts, such as a tappet and a rocker arm, and a bearing. Constitution: a sliding part having a part body (3) of steel and a member (A), for example, of Si3N4 forming at least one sliding surface (1) out of the sliding surfaces of the body and thermally combined with the part body (3). A method of manufacturing this part comprising the steps of subjecting a part body of steel to a cementation process, hardening the resultant part body, and thermally combining a sliding surface-forming member (A) with the part body thus obtained. Effect: the manufacturing of the sliding part can be done easily, and the reduction of the manufacturing cost can be attained.

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