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在当前的鑽探工程中,如何提高硬岩鑽进的效率,是一个急待解决的重要問題。对这个問题的解决,大家是从两个方面着手的:一个是研究冲击廻轉鑽具,設法用冲击和廻轉的复合作用,来提高硬岩鑽进的效率,目前这項工作还沒有达到实用阶段,但是大家一致認为,这是一个很有前途的工作;另一个是从改进磨料的物理机械性能和几何形状着手,以求加强軸心压力,提高鑽进速度,減少磨料消耗。这項工作,在目前看来,还是很必要而且也是很现实的。鑽粒鑽进由鑄铁鑽粒过渡到切制的钢粒这是一个重大的进步。由于使用了切制的鋼粒突出的表现出下面优点(以Ф3.5的鋼絲鑽粒和Ф3.5的鑄铁鑽粒相
In the current drilling project, how to improve the efficiency of hard rock drilling is an urgent and urgent problem. To solve this problem, we started with two aspects. One was to study the impact drilling and turning drill and try to improve the efficiency of hard rock drilling by the combination of impact and swirling. This work has not yet been achieved Practical phase, but everyone agreed that this is a promising work; the other is to improve the physical and mechanical properties of abrasive and geometry to start to enhance the axial pressure to improve drilling speed and reduce abrasive consumption. This work, at the moment, is still necessary and realistic. Drilling into diamonds from the cast iron particles to the cut of steel This is a major step forward. As a result of the use of the cut out of the steel to highlight the following advantages (with Ф3.5 wire drill and Ф3.5 cast iron phase