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Φ42mm腔体高岭石-白云石质传压密封介质金刚石合成扩大试验

DOI: 10.11858/gywlxb.2013.01.004, PP. 34-39

Keywords: 高岭石,白云石,传压介质,密封介质,金刚石合成

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Abstract:

高岭石具有良好的流动密封、固体传压及机械加工等物理性能,是传统传压密封介质原料叶蜡石的替代品。采用比纯高岭石更适合作为传压密封介质原料的某地高岭石矿物,经过配料、混料、装模、压制成型以及焙烧等工序,制成了高岭石-白云石质传压密封介质,并对其进行金刚石合成扩大试验。试验结果表明:高岭石-白云石质传压密封介质能够达到与叶蜡石质传压密封介质相当的效果;合成金刚石的单产为19g,抗压强度不小于160N的晶粒占32%,晶粒尺寸大于或等于0.30mm的占82%,合成1g金刚石的顶锤消耗小于0.5g,合成过程稳定。

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