Method and means for drill production
    1.
    发明授权
    Method and means for drill production 失效
    钻井生产的方法和手段

    公开(公告)号:US06866889B1

    公开(公告)日:2005-03-15

    申请号:US10030906

    申请日:2000-07-14

    CPC分类号: C23C14/042 C23C14/505

    摘要: A holder (2; 22; 82) for coating drill with a ceramic coating by a vapor deposition process has a perforated outer wall (4; 24; 84) into which the drills are inserted with their tips projecting. The holder has a hollow interior in which support means locate the inserted drills parallel and with their tips projecting to the same extent. The support means may comprise a correspondingly perforated inner wall (8; 26; 86) and a back wall (10; 28; 88) against which the drills abut, the outer, inner and back walls being parallel to each other. In one configuration, the holder has a hexagonal plan form with alternate outer walls (4) perforated and each with associated inner and back walls (8, 10). The holder is provided with a lid (52) that shields the interior from ingress of the coating material but provides an air passage to assist cooling of the portions of the drills in the holder interior after the coating has been applied.

    摘要翻译: 用于通过气相沉积方法用陶瓷涂层涂覆钻头的保持器(2; 22; 82)具有穿孔的外壁(4; 24; 84),钻孔被插入其中,其尖端突出。 保持器具有中空的内部,支撑装置在其中平行定位插入的钻头并且其尖端突出到相同的程度。 支撑装置可以包括相应穿孔的内壁(8; 26; 86)和后壁(10; 28; 88),所述钻孔抵靠在所述后壁上,所述外壁,内壁和后壁彼此平行。 在一种构造中,保持器具有六边形平面形式,其具有穿孔的交替外壁(4),并且每个具有相关联的内壁和后壁(8,10)。 保持器设置有盖(52),该盖(52)屏蔽内部不受涂层材料的侵入,但是在施加涂层之后提供空气通道以辅助在保持器内部的钻头的部分的冷却。