새로운 Ti계 고용체 절삭 공구 소재
    9.
    发明公开
    새로운 Ti계 고용체 절삭 공구 소재 失效
    新型基于TI的固体切割工具材料

    公开(公告)号:KR1020060115542A

    公开(公告)日:2006-11-09

    申请号:KR1020050038163

    申请日:2005-05-06

    Abstract: A solid solution powder capable of manufacturing cutting tools with high hardness and high toughness by essentially greatly improving toughness of a cermet material and obtaining superior mechanical properties of the cermet material as a whole, thereby substituting a WC-Co hard metal material, a preparation method of the solid solution powder, a powder for cermet comprising the solid solution powder, a preparation method of the powder for cermet, sintered ceramics using the solid solution powder, and a cermet using the powder for cermet are provided. A solid solution powder is formed of carbide, carbonitride, or a mixture of the carbide and the carbonitride of at least two metals that include titanium and are selected from metals of IVa group, Va group and VIa group on the periodic table of the elements, wherein the solid solution powder is completely in a solid solution phase with a solid solution powder having nanograins of 100 nm or less. A preparing method of a solid solution powder comprises: a step(S1-1) of mixing nano-sized oxides of at least two metals with a carbon powder or a carbon source according to a desired composition, wherein the at least two metals include titanium and are selected from metals of IVa group, Va group and VIa group on the periodic table of the elements; and a step(S2) of reducing and carbonizing the mixed powder of the oxides and the carbon powder or the carbon source.

    Abstract translation: 一种能够通过基本上大大提高金属陶瓷材料的韧性并且获得金属陶瓷材料整体的优异的机械性能而能够制造具有高硬度和高韧性的切削工具的固溶粉末,由此代替WC-Co硬质金属材料,制备方法 的固溶粉末,包含固溶粉末的金属陶瓷粉末,金属陶瓷粉末的制备方法,使用固溶粉末的烧结陶瓷和使用该金属陶瓷粉末的金属陶瓷。 固体溶液粉末由碳化物,碳氮化物或至少两种包括钛的金属的碳化物和碳氮化物的混合物形成,所述金属选自元素周期表上的IVa族,Ⅴa族和Ⅵa族金属, 其中所述固溶体粉末与具有100nm或更小的纳米晶粒的固溶体粉末完全处于固溶相中。 固溶粉末的制备方法包括:根据所需组成将至少两种金属的纳米尺寸氧化物与碳粉或碳源混合的步骤(S1-1),其中所述至少两种金属包括钛 选自元素周期表中的IVa族,Va族和VIa族金属; 以及还原和碳化氧化物和碳粉或碳源的混合粉末的步骤(S2)。

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