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31 条记录 (耗时 0.008 秒)

    CEMENTED CARBIDE AND TOOL INCLUDING SAME
    1.
    发明公开
    CEMENTED CARBIDE AND TOOL INCLUDING SAME 审中-实审

    公开(公告)号：EP4431628A1

    公开(公告)日：2024-09-18

    申请号：EP22921884.7

    申请日：2022-01-20

    申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

    发明人： KIDO, Yasuki ,  OKAMURA, Katsumi ,  SEKIYA, Takashi

    IPC分类号： C22C29/08 ,  B22F3/02 ,  B22F3/15 ,  B22F1/00

    CPC分类号： C22C29/08 ,  C22C2200/0020130101 ,  C22C1/051 ,  B22F2005/00120130101

    摘要： A cemented carbide including tungsten carbide grains and a binder phase, in which a total content of the tungsten carbide grains and the binder phase in the cemented carbide is no less than 80 vol%, a content of the binder phase in the cemented carbide is no less than 0.1 vol% and no more than 20 vol%, in a histogram showing distribution of orientation differences between adjacent pairs each consisting of two of the tungsten carbide grains adjacent to each other in the cemented carbide, a first peak is present in a class of the orientation differences of no less than 29.5° and less than 30.5°, the classes along a horizontal axis of the histogram indicate the orientation differences, and a width of the class is 1.0°, and a frequency along a vertical axis of the histogram indicates a ratio of the number of the adjacent pairs belonging to each class to the number of all of the adjacent pairs in the cemented carbide.

    CUTTING TOOL
    7.
    发明公开
    CUTTING TOOL 审中-公开

    公开(公告)号：EP4438753A1

    公开(公告)日：2024-10-02

    申请号：EP23165500.2

    申请日：2023-03-30

    申请人： AB Sandvik Coromant

    发明人： GARCIA, José Luis ,  CHYCHKO, Andrei

    IPC分类号： C22C1/051 ,  C22C29/06 ,  C22C29/08 ,  B22F5/00

    CPC分类号： C22C29/08 ,  C22C29/067 ,  B22F2005/00120130101 ,  C22C1/051

    摘要： The present invention relates to a cutting tool comprising a cemented carbide substrate with a Fe-based binder, where the cemented carbide further comprising Ni, Cr and Al so that the weight fraction Ni/(Fe+Ni) is between 0.10 and 0.25, the weight fraction Cr/(Fe+Ni+Cr+Al) is between is between 0.005 and 0.05, the weight fraction Al/(Fe+Ni+Cr+Al) is between 0.01 and 0.05; and wherein the amount of Fe in the metal binder is at least 70 wt%. The invention also relates to a method of making such cutting tool.

    A CEMENTED CARBIDE CUTTING TOOL
    8.
    发明公开
    A CEMENTED CARBIDE CUTTING TOOL 审中-公开

    公开(公告)号：EP4389923A1

    公开(公告)日：2024-06-26

    申请号：EP22214877.7

    申请日：2022-12-20

    申请人： AB Sandvik Coromant

    发明人： GARCIA, José ,  CHYCHKO, Andrei

    IPC分类号： C22C1/055 ,  C22C29/06 ,  C22C29/08 ,  B22F3/15 ,  B22F5/00

    CPC分类号： C22C29/08 ,  C22C29/067 ,  B22F2005/00120130101 ,  C22C1/055 ,  B22F2998/1020130101 ,  B22F3/15

    摘要： The invention relates to a cutting tool comprising a cemented carbide substrate where the cemented carbide comprises a hard phase comprising WC, a mixed carbide phase and a metal binder and where the where the cemented carbide comprises the elements V, Cr, Ni and Fe in such amounts so that:
    -the weight fraction V/(V+Cr+Ni+Fe) is between 0.0030 and 0.050,
    -the weight fraction Cr/(V+Cr+Ni+Fe) is between 0.010 and 0.040
    -the weight fraction Ni/(V+Cr+Ni+Fe) is between 0.030 and less than 0.050
    -the weight fraction Fe/(V+Cr+Ni+Fe) is between 0.86 and 0.967.
    The cemented carbide according to the present invention shows toughness and hardness properties comparable with cemented carbides with Co-binder.