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    INORGANIC FIBER BOUND CERAMICS, METHOD FOR PRODUCING THE SAME AND HIGH-SURFACE ACCURACY MEMBER USING THE SAME
    14.
    发明专利
    INORGANIC FIBER BOUND CERAMICS, METHOD FOR PRODUCING THE SAME AND HIGH-SURFACE ACCURACY MEMBER USING THE SAME 失效

    公开(公告)号：JP2001181046A

    公开(公告)日：2001-07-03

    申请号：JP36231499

    申请日：1999-12-21

    Applicant: UBE INDUSTRIES

    Inventor： MATSUNAGA KENJI ,  KAJII SHINJI ,  NUNOGAMI TOSHIHIKO ,  ISHIKAWA TOSHIHIRO

    IPC: C04B35/565 ,  D01F9/10

    Abstract: PROBLEM TO BE SOLVED: To obtain a material having high fracture resistance and excellent in surface smoothness and to provide a method for producing the material. SOLUTION: The ceramics comprise inorganic fibers containing (a) an amorphous substance composed of Si, M, C and O, (b) an aggregate of crystalline microparticles of β-SiO2, MC and C and an amorphous substance of SiO2 and MO2 (M denotes Ti or Zr) or (c) a mixture of the amorphous substance (a) with the aggregate (b) and an inorganic substance containing (d) an amorphous substance composed of Si and O, as necessary, M, (e) a crystalline substance composed of crystalline SiO2 and/or MO2 or (f) a mixture of the above amorphous substance (d) with the above crystalline substance (e) and further containing crystalline microparticles composed of MC having 100 nm to 1, 000 nm particle diameter dispersed therein and present so as to fill interstices among the inorganic fibers. The content of the inorganic fibers is >=80 vol.%.

    PRODUCTION OF HEAT-RESISTANT INORGANIC FIBER
    17.
    发明专利
    PRODUCTION OF HEAT-RESISTANT INORGANIC FIBER 失效

    公开(公告)号：JPH07145515A

    公开(公告)日：1995-06-06

    申请号：JP1427694

    申请日：1994-02-08

    Applicant: UBE INDUSTRIES

    Inventor： ISHIKAWA TOSHIHIRO ,  HARADA YOSHIKATSU ,  KAMITOKU YASUHIKO

    IPC: C04B35/571 ,  C08G77/00 ,  D01F9/10

    Abstract: PURPOSE:To obtain high-strength and high-elastic modulus heat-resistant inorganic fiber by spinning a specific polymetallocarbosilane, halogenating the resultant fiber, infusibilizing the halogenated fiber and then baking the infusibilized fiber at a high temperature. CONSTITUTION:This method for producing heat-resistant inorganic fiber is to spin a polymetallocarbosilane in which at least a part of Si in an organosilicon polymer substantially composed of a main skeleton having a structural unit expressed by formulas I and II (R to R are independently each H, a lower alkyl or phenyl and any one thereof is H) is bound directly or through O to Ti or Zr, heat the resultant spun fiber from a temperature between ambient temperature and 200 deg.C to 40-300 deg.C at 1-50 deg.C/hr, preferably 4-30 deg.C/hr heating rate in an atmosphere of an inert gas containing Cl, Br or I, convert 10-70% of Si-H bonds into Si-halogen bonds, heat the prepared halogenated fiber at 200-500 deg.C in an atmosphere of the inert gas or a vacuum, carry out the infusibilization by cross-linking of Si-Si bonds and then bake the infusibilized fiber at a high temperature in an atmosphere of the inert gas or a reducing gas.

    BRUSH DETECTING LEAKAGE CURRENT
    19.
    发明专利
    BRUSH DETECTING LEAKAGE CURRENT 失效

    公开(公告)号：JPH04117796A

    公开(公告)日：1992-04-17

    申请号：JP23560190

    申请日：1990-09-07

    Applicant: UBE INDUSTRIES

    Inventor： YAMAMURA TAKETAMI ,  ISHIKAWA TOSHIHIRO ,  SHIBUYA MASAKI

    IPC: C08G77/00 ,  D01F9/10 ,  H01R39/24 ,  H04N17/04

    Abstract: PURPOSE:To improve the wear resistance for a current detection brush and to use the brush stably for a long period by pressing and supporting inorganic fibers with a conductive calking device. CONSTITUTION:A leakage current detection brush 1 consists of inorganic fibers 2 and a caulking device 3, and elements of the inorganic fibers 2 are Si, C, Ti or Zr and O. Iron, copper or aluminum is adopted for the material of the calking device 3. The tip of the inorganic fibers 2 of the brush 1 strikes on an earth face of a CRT from every direction, a required voltage is applied to the tip and a circuit tester is used to detect whether or not a current is leaked from the earth face. Since the brush part of the current detection brush is made of the inorganic fibers only, exfoliation of carbon like a well-known synthetic resin made mono filament covered by carbon is not caused. Thus, the wear resistance of the current detection brush is improved and the brush is used stably for a long period.

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