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我队在五五年的砂石料钻探中,需要用大量的各种规格的螺旋钻头,过去我队所用的螺旋钻头都从外地订购,可是规格与数量上不适应我队的需要,同时价格较高,特别是当紧急任务或地质要求变更时,则在钻探工具的供应上带来了困难,直接影响着任务的胜利完成。这时由修配厂技术员及有关工人同志共同研究提出用厚15公厘与12公厘的铁板自制螺旋钻头经过工地的使用证明效果良好,现将自制的方法介绍如后,提供钻探工作者参考。
Our team needs a large number of spiral drill bits of various specifications in the gravel drilling of five or five years. In the past, the spiral drill bits used by our team were all ordered from the outside world, but their specifications and quantities did not meet the needs of our team. At the same time, High, especially when the urgent task or geological requirements change, it brings difficulties in the supply of drilling tools, a direct impact on the completion of the task of victory. This time by the repair shop technicians and workers comrades jointly proposed with 15 mm thick and 12 mm iron-made spiral drill bit through the use of the site proved to be good, now introduced after the homemade method such as drilling workers to provide reference .