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Jet-type rotary hydraulic impact hammer impregnated diamond bit and analysis of the practice of drilling.pdf

  Mechanical properties of diamond itself, the structural characteristics of diamond drill bits and hammer liquid jet impact characteristics of the jet with hydraulic hammer blow to diamond bit rotary drilling is feasible. By jet-type hydraulic hammer in the Scientific Drilling of the application of the pilot hole practice, proof of impact as a result of hydraulic hammer drill bit at the end of the role of dynamic load lip surface and rock surface micro-gap changes regularly to improve the bits by the force of diamond particles, broken rock, and improve the bit depth of cut of diamond particles, to improve the situation of matrix wear, bit cooling, improved double eclogite, gneiss and other hard formation drilling footage back to times, drill penetration rate and average life expectancy.

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