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59 条记录 (耗时 0.018 秒)

    Process for producing silicon carbide fibers
    51.
    发明公开
    Process for producing silicon carbide fibers 失效
    一种用于生产碳化硅纤维处理

    公开(公告)号：EP0744390A3

    公开(公告)日：1997-01-22

    申请号：EP96108094.2

    申请日：1996-05-21

    申请人： NIPPON CARBON CO., LTD.

    发明人： Ichikawa, Hiroshi ,  Takeda, Michio ,  Sakamoto, Junichi ,  Saeki, Akinori

    IPC分类号： C04B35/571

    CPC分类号： C04B35/571

    摘要： The present invention provides a process for producing silicon carbide fibers having a C/Si molar ratio of from 0.85 to 1.39 and excellent in heat resistance and strength at high temperatures, while conventional processes have not been able to produce the fibers having the ratio of less than 1.56. The process of the present invention comprises the steps of rendering infusible precursory fibers made from an organosilicon polymer compound to obtain infusible fibers, then primarily baking the infusible fibers in a hydrogen gas-containing atmosphere while raising the temperature thereof to obtain primarily baked fibers, and further secondarily baking the primarily baked fibers to obtain final fibers. The secondary baking is performed in the atmosphere of a mixed gas of an inert gas with hydrogen chloride gas at 1,500 to 2,200 °C.

    Process for producing silicon carbide fibers
    52.
    发明公开
    Process for producing silicon carbide fibers 失效
    Verfahren zur Herstellung von Silicium carbidfasern。

    公开(公告)号：EP0653391A1

    公开(公告)日：1995-05-17

    申请号：EP94117853.5

    申请日：1994-11-11

    申请人： NIPPON CARBON CO., LTD.

    发明人： Ichikawa, Hiroshi ,  Imai, Yoshikazu ,  Takeda, Michio ,  Sakamoto, Junichi

    IPC分类号： C04B35/571 ,  D01F9/10

    CPC分类号： D01F9/10 ,  C04B35/571

    摘要： A process for producing silicon carbide fibers, comprising the steps of spinning an organosilicon high-molecular compound to obtain precursory fibers, rendering infusible the precursory fibers to obtain infusible fibers, and baking the infusible fibers thereby to obtain silicon carbide fibers, characterized in that the baking is performed in an atmosphere selected from the group consisting of a hydrogen gas atmosphere, a dilute hydrogen gas atmosphere and an inert gas atmosphere, with the proviso that the baking at any temperature in at least a part of a temperature range from 500 to 950 °C is carried out in a hydrogen gas or dilute hydrogen gas atmosphere.

    摘要翻译： 一种制造碳化硅纤维的方法，包括以下步骤：使有机硅高分子化合物旋转以获得前体纤维，使前体纤维不熔融以获得不熔融纤维，并烘焙不熔纤维，从而获得碳化硅纤维，其特征在于， 在选自氢气气氛，稀氢气气氛和惰性气体气氛的气氛中进行烘烤，条件是在至少部分温度范围为500至950℃的任何温度下烘烤 DEG在氢气或稀氢气氛中进行。

    GASKET FOR INTERNAL COMBUSTION ENGINE
    57.
    发明公开
    GASKET FOR INTERNAL COMBUSTION ENGINE 无效
    DICHTUNGSRINGFÜRVERBRENNUNGSMOTOR。

    公开(公告)号：EP0328675A1

    公开(公告)日：1989-08-23

    申请号：EP88906877.1

    申请日：1988-07-28

    申请人： NIPPON CARBON CO., LTD.

    发明人： YAMAOKA, Hidenori ,  KOBAYASHI, Yoshinao ,  SUGA, Kuri

    IPC分类号： F16J15/12 ,  F02F11/00 ,  C09K3/10

    CPC分类号： F16J15/122 ,  Y10T428/25 ,  Y10T428/26 ,  Y10T428/269 ,  Y10T428/30

    摘要： A gasket for internal combustion engine is disclosed, which comprises a metal or non-metal sheet having on either one side or both sides thereof a coating material composed of 20 to 60 wt % of expansive graphite of 10 to 300 cc/g in spe­cific volume and 40 to 80 wt % of a binder of synthetic resin, etc.

    摘要翻译： 公开了一种用于内燃机的垫圈，其包括金属或非金属片，其在其一侧或两侧上具有由20至60重量％的比例容积为10至300cc / g的膨胀石墨组成的涂层材料 和40〜80重量％的合成树脂粘合剂等

    METHOD OF MELTING AND REFINING METALS, AND AN APPARATUS FOR COOLING ELECTRODES USED THEREFOR
    58.
    发明公开
    METHOD OF MELTING AND REFINING METALS, AND AN APPARATUS FOR COOLING ELECTRODES USED THEREFOR 失效
    熔化和金属用于冷却铅精炼和设备。

    公开(公告)号：EP0309583A1

    公开(公告)日：1989-04-05

    申请号：EP87904111.9

    申请日：1987-06-24

    申请人： NIPPON CARBON CO., LTD.

    发明人： NAKAMOTO, Yakka ,  MORI, Toshihiko

    IPC分类号： H05B7/12

    CPC分类号： H05B7/12

    摘要： Referring to Figs. 2, 3 and 4, reference numeral (10) refers to a graphite electrode among three graphite electrodes that correspond to a three-phase AC power source. A graphite electrode is connected to each of the graphite electrodes (10) via a nipple. An electric current is supplied to these electrodes in an arc furnace of melt and refine metals. The invention deals with a method of refining and melting metals and a cooling apparatus used therefor, wherein, during the refining, a cooling liquid (11) which substantially consists of water is continuously sprayed onto the outer periphery (10a) of at least one graphite electrode (10) among the three graphite electrodes or, more particularly, onto the outer periphery (10a) of the graphite electrode (10) between an electrode holder and a furnace cover. In this case, the cooling liquid (11) is sprayed not in parallel with a horizontal level L-L, but upward or downward at an angle of 10° to 35° with respect to the level L-L to cool the electrode.

    摘要翻译： 的石墨电极被连接到每个经由乳头石墨电极（10）的。 电流被提供给合成电极到熔体的电弧炉和精炼金属。 一种方法，精炼和金属熔化和冷却appts F-的。 用于它，worin，炼制哎，冷却LIQ期间。 （11）由水在3个石墨电极之间连续喷射到至少一个石墨电极（10）的外周（10a）中，或ESP。 到在电极保持器之间的石墨电极（10）的外周面（10a）和炉盖。 冷却LIQ。 （11）不被喷洒在平行于水平面L-L，但向上或向下在以10度的角度。 到35度。 WRT电平L-L来冷却电极。