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    • 10. 发明申请
    • METHOD OF MAKING SUPER-HARD ARTICLES
    • 制作超硬文章的方法
    • WO2016008821A1
    • 2016-01-21
    • PCT/EP2015/065869
    • 2015-07-10
    • ELEMENT SIX (UK) LIMITED
    • GHOSH, Santonu
    • C04B35/528B22F3/20B22F7/06C04B35/5831C04B35/626C04B35/634C04B35/638C04B35/645C22C26/00B28B3/20
    • C04B35/5831B22F2005/001B22F2998/10B23C2226/125B23C2226/315B23P15/34B28B3/025B28B19/00C04B35/528C04B35/62222C04B35/6263C04B35/632C04B35/634C04B35/638C04B35/64C04B35/645C04B2235/386C04B2235/427C04B2235/6021C04B2235/608C22C26/00C22C2026/003C22C2204/00B22F1/0059B22F3/20B22F3/1021B22F3/14
    • A method of making a super-hard article comprising a super-hard structure (14) bonded to a substrate (18), the super-hard structure comprising a sintered plurality of super-hard grains. The method includes providing raw material powder suitable for sintering the super-hard structure. The raw material powder is combined with organic binder material in a liquid medium to form paste. The content of the raw material powder is more than 60 and less than 85 mass per cent of the paste and the composition of the paste is such that it has a shear rate of at most 25 inverse second (s- 1 ). A substrate assembly is provided, which comprises the substrate, having a formation surface area configured for forming a boundary of the super-hard structure, the substrate comprising a recess coterminous with the formation surface area. The paste is extruded into contact with the formation surface area to provide a paste assembly. The paste assembly is heat treated to remove the binder material and provide a pre-sinter assembly. The pre-sinter assembly is subjected to a pressure and temperature sufficient to sinter the raw material powder and transform it into the super-hard structure bonded to the substrate at a boundary coterminous with the formation surface area. The super-hard material is diamond or cubic boron nitride.
    • 一种制造超硬制品的方法,所述超硬制品包括结合到基底(18)的超硬结构(14),所述超硬结构包括多个超硬晶粒的烧结体。 该方法包括提供适于烧结超硬结构的原料粉末。 将原料粉末与有机粘合剂材料在液体介质中混合以形成糊状物。 原料粉末的含量多于糊料的60%且小于85质量%,糊料的组成使其具有至多25倒数秒(s-1)的剪切速率。 提供了一种衬底组件,其包括衬底,具有构造成用于形成超硬结构的边界的形成表面区域,该衬底包括与形成表面区域相邻的凹部。 将糊料挤压成与地层表面区域接触以提供糊剂组合物。 将膏体组件热处理以除去粘合剂材料并提供预烧结组件。 将预烧结组件经受足以烧结原料粉末的压力和温度,并将其转变成与形成表面积相邻的边界处接合到基材的超硬结构。 超硬材料是金刚石或立方氮化硼。