基本解释：金钻麻
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In order to solve the existing problems of drilling gravel and cobble stratum,common tungsten carbide-insert drill bits,composite diamond-tungsten carbide button bits and impregnated diamond-tungsten carbide bar bits were designed and tested successively.针对卵砾石地层的钻进实践,先后设计与试验了三种类型的钻头;普通八角合金钻头、金刚石-硬质合金复合球齿钻头与孕镶金刚石-针状合金复合式钻头。
Mainly preseating the function characteristies of Ti-alloy,and the main factors that affect Ti-alloy drilling and tapping processing are analyzed.主要叙述了钛合金的性能特点,同时分析了影响钛合金钻削和攻丝加工的主要因素,并提出改进钛合金钻削和攻丝加工的工艺参数和相应措施。
In allusion to the problems existing at present, the portable aluminum alloy multi purpose rigs which are suitably used in soil and rock or their mixture formation, aluminum alloy drilling pipes, screw pump, screw air compressor and pneumatic hammer which consumes least air and whose diameter is least over China are researched and developed.首先分析了我国山地丘陵地区地震勘探钻孔技术的现状和存在的问题 ,针对目前的问题 ,研究适合我国国情的可用于土层、岩层、土岩混合地层钻进用的多功能轻便铝合金钻机 ,及配套用的铝合金钻杆、螺杆式泥浆泵、螺杆式空压机 ,研制开发出国内外直径最小耗风量最低的气动潜孔锤 ,该技术已成功用于生
The thrust and the torque of various carbide drills are studied for the high-speed drilling of fiber reinforced epoxy composites.采用多种硬质合金钻头,在高转速和不同进给速度条件下对碳纤维/环氧树脂复合材料进行孔加工正交试验,通过研究其轴向力和扭矩以分析刀具条件和切削参数的适应性。
