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大港油田提供我厂一只从美国进口的钻杆打捞公锥样品,经解剖分析,供有关单位参考。一、结构特点:公锥外形如图1所示。整个公锥的长度比国产公锥长得多,也较日本公锥长。除接头部分外,全部车有打捞扣,并有退屑槽。扣形为锯齿形,其主要参数为5扣/吋,全角为100°,半角分别为33°、67°。齿高为1.44毫米,打捞扣的锥度为1:16。二、化学成分:公锥用钢成分分析结果
Dagang Oilfield to provide my factory imported from the United States drill pipe salvage Cone samples, anatomical analysis, for the relevant units for reference. First, the structural features: male cone shape shown in Figure 1. The length of the entire male cones than the domestic cone much longer, also longer than the Japanese male cone. In addition to the connector part, all the car salvage buckle, and a retreat groove. The buckle shape is zigzag, its main parameters are 5 buckle / inch, full angle is 100 °, half angle are 33 °, 67 ° respectively. Tooth height of 1.44 mm, salvage buckle taper 1:16. Second, the chemical composition: male cone steel composition analysis results