利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.021 秒)

    Drill bit blade for masonry and rock drill
    5.
    发明授权
    Drill bit blade for masonry and rock drill 失效
    钻头刀片用于石工和凿岩机

    公开(公告)号：US4984944A

    公开(公告)日：1991-01-15

    申请号：US177187

    申请日：1988-04-04

    申请人： Donald C. Pennington, Jr. ,  John D. Knox

    发明人： Donald C. Pennington, Jr. ,  John D. Knox

    IPC分类号： E21B10/46 ,  B23B51/00 ,  B23B51/02 ,  E21B10/44 ,  E21B10/58

    CPC分类号： B23B51/0009 ,  B23B51/00 ,  B23B51/02 ,  E21B10/445 ,  E21B10/58 ,  B23B2226/75 ,  B23B2251/14 ,  B23B2251/48 ,  B23B2251/50 ,  Y10T408/905 ,  Y10T408/909

    摘要： A drill bit blade for masonry and rock drills incudes first and second lateral side surfaces, first and second flank side surfaces, and converging first and second tip face surfaces. A first lateral cutting edge is defined by the intersection of the first tip face surface with the first lateral side surface, and a first lateral trailing edge is defined by the intersection of the first tip face surface with the second lateral side surface. A first lateral cutting edge is defined by the intersection of the first tip face surface with the second lateral side surface, and a second lateral trailing edge is defined by the intersection of the second tip face surface with the first lateral side surface. A chisel edge is defined at the converging intersection of the first and second tip face surfaces. A first notch is formed in the first lateral trailing edge and second lateral cutting edge at one end of the chisel edge, and a second notch is formed in the second lateral trailing edge and first lateral cutting edge at the other end of the chisel edge. In addition, notches are also formed in the first and second lateral cutting edges to divide the lateral cutting edges into cutting edge segments.

    摘要翻译： 用于砌体和凿岩钻头的钻头刀片包括第一和第二侧面，第一和第二侧面侧面，并且会聚第一和第二末端面。 第一横向切削刃由第一末端面表面与第一横向侧表面的交点限定，并且第一横向后缘由第一末端面表面与第二横向侧表面的交点限定。 第一横向切削刃由第一末端面表面与第二横向侧表面的交点限定，第二横向后缘由第二末端面表面与第一横向侧表面的交点限定。 在第一和第二末端面表面的会聚交点处限定凿边。 在凿边缘的一端的第一侧向后缘和第二横向切削刃中形成第一切口，并且在凿边缘的另一端处的第二侧向后缘和第一横向切削刃中形成第二切口。 此外，还在第一和第二横向切削刃中形成切口，以将横向切削刃划分成切削刃段。

    Boron-treated hard metal
    8.
    发明授权
    Boron-treated hard metal 失效
    硼处理硬质合金

    公开(公告)号：US5116416A

    公开(公告)日：1992-05-26

    申请号：US593999

    申请日：1990-10-09

    申请人： Jack D. Knox ,  Donald C. Pennington, Jr.

    发明人： Jack D. Knox ,  Donald C. Pennington, Jr.

    IPC分类号： C22C1/05 ,  C22C29/08

    CPC分类号： C22C29/08 ,  C22C1/051 ,  B22F2998/00

    摘要： A hard, relatively non-brittle, cemented carbide body is made by sintering pressed grade carbide powders in the presence of a boron-containing material such as boron nitride. During sintering, appreciable quantities of boron migrate or diffuse into the body to become incorporated throughout the microstructure of the carbide resulting in the formation of a third quarternary phase comprised of tungsten, nickel, boron and carbon.

    摘要翻译： 通过在诸如氮化硼的含硼材料的存在下烧结压制级碳化物粉末来制造硬质相对不脆的硬质合金体。 在烧结过程中，可观量的硼迁移或扩散到体内，从而整合到整个碳化物的微观结构中，从而形成由钨，镍，硼和碳组成的第三季度相。

    Boron-treated hard metal
    9.
    发明授权
    Boron-treated hard metal 失效
    硼处理硬质合金

    公开(公告)号：US4961780A

    公开(公告)日：1990-10-09

    申请号：US317612

    申请日：1989-03-06

    申请人： Donald C. Pennington, Jr.

    发明人： Donald C. Pennington, Jr.

    IPC分类号： C22C1/05 ,  C22C29/08

    CPC分类号： C22C29/08 ,  C22C1/051 ,  B22F2998/00

    摘要： A hard, relatively non-brittle, cemented carbide body is made by sintering pressed grade carbide powders in the presence of a boron-containing material such as boron nitride. During sintering, appreciable quantities of boron migrate or diffuse into the body to become incorporated throughout the microstructure of the carbide resulting in the formation of a third quarternary phase comprised of tungsten, cobalt, boron and carbon.

    摘要翻译： 通过在诸如氮化硼的含硼材料的存在下烧结压制级碳化物粉末来制造硬质相对不脆的硬质合金体。 在烧结过程中，可观量的硼迁移或扩散到体内，从而整合到整个碳化物的微结构中，从而形成由钨，钴，硼和碳组成的第三季度相。