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偏心割管器是604队在1958年技术革新技术革命运动中创造并坚持下来的成果之一,几年来已在我公司各队推广使用。实践证明,它是切割套管的有效工具。它与水压割管器、齿轮割管器比较,具有结构简单、容易制作、使用方便、效果良好等优点,适用于70°—90°之间的钻孔。结构如图1。偏心割管器是利用一端丝扣完好的旧钻杆接手与扇形钢板焊接而成。扇形的半径等于所割套管内径之半径,弧面上镶焊5×5×10或5×5×13的方片合金8—10颗。接手上钻一通水孔,便于冷却。
Eccentric Pipe Cutter is one of the achievements made and persisted by the 604 team during the technological revolution in 1958, which has been promoted in our teams for several years. Practice has proved that it is an effective tool for cutting the sleeve. Compared with hydraulic pipe cutter and gear cutting pipe, it has the advantages of simple structure, easy manufacture, convenient use, good effect and the like, and is suitable for drilling between 70 ° -90 °. Structure shown in Figure 1. Eccentric pipe cutter is the use of one end of a good old drill pipe to take over and fan-shaped steel plate welded together. The radius of the sector is equal to the radius of the inner diameter of the casing to be cut, and 8-10 square pieces of alloy 5 × 5 × 10 or 5 × 5 × 13 are inlaid on the surface of the arc. Take over a hole drilled, easy to cool.