2005•Mining & Processing EquipmentRequires access

Study to Mechanism of Rock Cut with Water Jet Aid Bit Tool and Optimal Jet Position

Lu Ping Yi

Abstract

The paper introduces a fitting method between water jet and PDC bit tool, that is, aid bit tool cut rock while water jet is directed from suitable location of bottom of bit tool. The test shows that in this way, water jet can enter the rock crack which the bit has made and impact the crack tip directly and produce pressure to extend the crack instantly, thus bit force has a substantial reduction.

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Available abstract

Key concepts: Bit (key), Water jet, Jet (fluid), Position (finance), Mechanism (biology), Engineering, Water pressure, Reduction (mathematics)