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    • 2. 发明申请
    • METHOD FOR ATTACHING A PRE-SINTERED BODY OF POLYCRYSTALLINE DIAMOND MATERIAL TO A SUBSTRATE
    • 将多晶金刚石材料的预烧结体接合到基板的方法
    • US20150000201A1
    • 2015-01-01
    • US14367148
    • 2012-12-13
    • Element Six Abrasives, S.A.
    • Kaveshini Naidoo
    • C04B37/02
    • C04B37/026B22F7/064C04B37/023C04B2237/02C04B2237/12C04B2237/122C04B2237/124C04B2237/16C04B2237/363C04B2237/401C04B2237/50C04B2237/52C04B2237/592C04B2237/60C04B2237/61C04B2237/706C04B2237/708C22C1/0433C22C19/07
    • A method of attaching a pre-sintered body of polycrystalline diamond material to a substrate along an interface therebetween, the substrate being formed of cemented carbide and a metal binder phase dispersed therein, comprises placing a layer comprising one or more elements or alloys thereof on the interface on one or other of the body of polycrystalline diamond material or substrate; the one or more elements being selected to form a eutectic mixture with the metal in the binder phase, the eutectic mixture having a lower melting point than the melting point of the metal in the binder phase of the substrate. The other of the body of polycrystalline diamond material or the substrate is then placed on the layer and the body of polycrystalline material, the layer and the substrate are then subjected to a predetermined temperature at least equal to or greater than the melting point of the eutectic mixture at substantially ambient pressure or a vacuum to melt the metal in the binder phase at the interface with the substrate so that the metal from the binder phase infiltrates into the adjacent body of polycrystalline diamond material to form a bond between the body of polycrystalline diamond material and the substrate.
    • 一种将多晶金刚石材料的预烧结体沿着它们之间的界面附着到衬底上的方法,所述衬底由硬质合金和分散在其中的金属粘合剂相形成,包括将包含一种或多种元素或其合金的层放置在 在多晶金刚石材料或衬底的一个或多个体上的界面; 所选择的一种或多种元素与粘合剂相中的金属形成共晶混合物,共晶混合物的熔点低于基底粘结相中金属的熔点。 然后将多晶金刚石材料或基底中的另一个放置在多晶材料的层和主体上,然后将该层和基底经受至少等于或大于共晶体的熔点的预定温度 混合物在基本环境压力或真空下在与基材的界面处熔融粘合剂相中的金属,使得来自粘合剂相的金属渗透到相邻的多晶金刚石材料体中以在多晶金刚石材料体之间形成结合 和基板。