Heat-resistant expanded graphite sheet
    5.
    发明专利
    Heat-resistant expanded graphite sheet 有权
    耐热膨胀石墨片

    公开(公告)号:JP2009286691A

    公开(公告)日:2009-12-10

    申请号:JP2009205957

    申请日:2009-09-07

    Abstract: PROBLEM TO BE SOLVED: To provide a heat-resistant expanded graphite sheet which demonstrates the action of suppressing the oxidation of graphite even in a high-temperature range exceeding 700°C and exhibits a high degree of oxidative wear resistance. SOLUTION: A method of manufacturing the heat-resistant expanded graphite sheet is characterized in that after an acid-treated graphite material obtained by treating a graphite material with a strong acid is compounded with a powder of an organic phosphorus compound and is agitated and mixed uniformly to obtain a mixture, this mixture is subjected to heating treatment for 1-10 seconds at temperatures of 950-1,200°C to generate a decomposition gas, the gaps between graphite layers are expanded by its gas pressure to obtain expanded graphite particles having an expansion magnification of 200-300, and these expanded graphite particles are subjected to pressure molding. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 解决的问题:提供即使在超过700℃的高温范围内也表现出抑制石墨氧化的作用的耐热膨胀石墨片,表现出高的氧化耐磨性。 解决方案:制造耐热膨胀石墨片的方法的特征在于,将用强酸处理石墨材料获得的酸处理石墨材料与有机磷化合物的粉末混合并搅拌 混合均匀,得到混合物,在950〜1200℃的温度下对该混合物进行1-10秒的加热处理,生成分解气体,通过气体压力使石墨层间的间隙膨胀,得到膨胀石墨粒子 膨胀倍率为200-300,对这些膨胀石墨颗粒进行加压成型。 版权所有(C)2010,JPO&INPIT

    Carbon crucible lining using flexible, high purity expanded graphite sheet
    6.
    发明专利
    Carbon crucible lining using flexible, high purity expanded graphite sheet 有权
    碳纤维衬里采用柔性,高透明度的石墨片

    公开(公告)号:JP2009133612A

    公开(公告)日:2009-06-18

    申请号:JP2008317408

    申请日:2008-12-12

    Abstract: PROBLEM TO BE SOLVED: To provide a carbon crucible lining using a flexible, high purity expanded graphite sheet. SOLUTION: The axisymmetric expanded graphite sheet has a bulk density of 0.7-1.3g/cm 3 , a thickness of 0.2-1.0 mm, and an impurity content of 5ppm or smaller. Natural graphite, pyrolytic graphite, kish graphite or the like is treated by a mixed liquid of a sulfuric acid, a nitric acid or the like, and after washing and drying, the expanded graphite sheet expanded in an expansion furnace at about 1,000°C is subjected to purity improvement treatment in a halogen gas atmosphere of 2,000°C or more. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:使用柔性高纯度膨胀石墨片提供碳坩埚衬里。 解决方案:轴对称膨胀石墨片的堆积密度为0.7-1.3g / cm 3,SPI = 0.2-1.0mm,杂质含量为5ppm以下。 天然石墨,热解石墨,石灰石等通过硫酸,硝酸等的混合液处理,洗涤干燥后,在膨胀炉中在约1000℃下膨胀的膨胀石墨片为 在2000℃以上的卤素气氛中进行纯度改善处理。 版权所有(C)2009,JPO&INPIT

    耐熱性膨張黒鉛シート
    8.
    发明专利

    公开(公告)号:JPWO2004028967A1

    公开(公告)日:2006-01-26

    申请号:JP2004539535

    申请日:2003-09-25

    Abstract: 本発明は、有機リン化合物が0.1〜10重量%の割合で分散含有されている耐熱性膨張黒鉛シートに関するものであり、700℃を超える高温領域においても耐酸化消耗性に優れた耐熱性膨張黒鉛シートが提供される。本発明の耐熱性膨張黒鉛シートは、黒鉛原料を強酸で処理した酸処理黒鉛原料に、有機リン化合物を所定量配合し均一に攪拌混合して混合物を得たのち、この混合物を950〜1200℃の温度で1〜10秒間加熱処理して分解ガスを発生せしめ、そのガス圧により黒鉛層間を拡張して膨張倍率200〜300倍の膨張黒鉛粒子を得、この膨張黒鉛粒子を加圧成形することにより製造できる。

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