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    • 8. 发明专利
    • Ceramic sintered body, ballast, and ballast track bed
    • 陶瓷烧结体,压板和压路板
    • JP2007186910A
    • 2007-07-26
    • JP2006006001
    • 2006-01-13
    • Central Japan Railway CoJapan Fine Ceramics Center東海旅客鉄道株式会社財団法人ファインセラミックスセンター
    • AOKI MASAJIMATSUBARA HIDEAKISEKI MASAKIFUNADA TOMOMIKITO AKITOTAMON YOSHIFUMI
    • E01B1/00C04B35/00C04B35/10E01B27/06E01B37/00
    • PROBLEM TO BE SOLVED: To provide a ceramic sintered body which has high strength and is resistant to grain refining, and to provide ballast and a ballast track bed. SOLUTION: The ceramic sintered body 3 is manufactured in the following manner. First, ethanol is added to alumina and coal ash as a solvent, and they are mixed and crushed by means of a ball mill, to thereby obtain slurry. Next, the ethanol is removed from the slurry by using a decompression type explosion-proof oscillation drier to obtain the mixed powder of alumina and coal ash. The mixed powder is then molded by a manual hydraulic press, and sintered in a large atmospheric sintering super-kanthal furnace at the highest temperature of 1,500, to thereby obtain the ceramic sintered body 3. The ceramic sintered body 3 thus manufactured satisfies all test items including bulk density, an abrasive ratio, hardness, a compression crushing ratio, and a shape, out of road bed ballast lithic tests. Further it is confirmed that items including bending strength, compressive strength, and an elastic coefficient of the ceramic sintered body exhibit values equal to or larger than those of track bed ballast in actual use. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种具有高强度并且耐晶粒细化的陶瓷烧结体,并且提供镇流器和压载轨道床。

      解决方案:陶瓷烧结体3以下列方式制造。 首先,将乙醇添加到氧化铝和煤灰作为溶剂中,并通过球磨机混合并粉碎,从而获得浆料。 接下来,使用减压型防爆振荡干燥器从浆料中除去乙醇,得到氧化铝和煤灰的混合粉末。 然后通过手动液压机将混合粉末成型,并在最高温度为1500℃的大型大气烧结超碱性炉中烧结,从而获得陶瓷烧结体3.由此制造的陶瓷烧结体3满足所有测试项目 包括堆积密度,磨料比,硬度,压缩破碎比和形状,在路床压载试验中。 此外,确认了陶瓷烧结体的弯曲强度,抗压强度,弹性系数等实际使用中的轨道床压载物的值等于或大于该值的物品。 版权所有(C)2007,JPO&INPIT