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    • 10. 发明申请
    • 一种新型钎焊金刚石串珠及使用此串珠的绳锯
    • WO2008128458A1
    • 2008-10-30
    • PCT/CN2008/070682
    • 2008-04-08
    • 张小军
    • 张小军
    • B23D61/18B23D1/06B27B19/10
    • B23D61/18B23D61/185
    • A braze-welding diamond bead (8) and a wire saw using the same are disclosed. A plurality of spiral line grooves (12) are provided on the outer surface of the bead (8) in the length direction of the rope hole (11), thereby a plurality of spiral knife faces (13) are formed between the neighboring spiral line grooves (12). The diamond abrasive grains (2) are brazed on the front knife faces (131) of the spiral knife faces (13) and are multilayeredly arranged along the working direction of the beads (8). The spiral line grooves (12) of each braze-welding diamond bead (8) mounted on the same wire saw are superpositioned, and the spiral direction of the spiral line groove (12) are consistent with the twisting direction of the wire cable (9). In the invention, the diamond abrasive grains are brazed on the front knife faces, and because of the support of the front knife faces, it is convenient to orderly arrange the diamond abrasive grains and it is convenient to arrange multilayered diamond abrasive grains in the working direction of the beads, especially ensuring that the moving track of the diamond abrasive grains on the workpiece to be machined is a straight line, completely conforming to the twist of the wire cable in the working process, thereby improving the useful life of the beads and the wire saw. The beads have characteristics of high discharging force, high holding force, high exposing degree and high processing efficiency.