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我队自一九五五年到三门峡工地勘探以来，在砂石料及砂砾层钻操中，一般都是采用大口径冲击钻进。为了满足地质要求利用冲击的卡簧钻头较多，过去我队修配厂在制作卡簧钻头时，共中的卡簧片都是利用废种条来改制的，但这种废钟条弹力小，在砂砾层采样钻进中所起的作用不大，同的废钟条在市场上不容易采购，因此产生制作卡簧钻头的困难，经我队修配厂技术员与工人共同研究，用废岩心管作卡簧片，工地使用一般效果良好。这样，不仅解决了工作中的困难，同时为国家节约了部分资金。
Since 1955, when our team went to Sanmenxia site for exploration, it has generally used large-diameter impact drilling in gravel and gravel drilling. In order to meet the geological requirements of the use of the impact of the spring reed more, in the past when our team repair shop in the production of spring reed drill bit, a total of reed is the use of waste seed to the restructuring, but this waste bell elastic, In the gravel layer sampling drilling play a small role, the same scrap clock in the market is not easy to purchase, resulting in the production of spring reed drill bit difficulties, by our team repair plant technicians and workers to study together with the waste core tube For the reed, site use generally good effect. In this way, not only the difficulties in the work are solved, but part of the capital is saved for the country as well.