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龙烟铁矿修理车间在今年3月份接受了一项修制大批而又长期需要的硬质合金钻头的任务。这些钻头的硬质合金片都是用过的旧残品,大部分已崩角、斜断,当时考虑到在修制中需把崩角、斜断部分找齐、磨平后,才能将数块并起来使用。但是因为硬质合金的硬度非常高,既不能刴又不能锯,如果整块的在碳化矽砂轮上磨,磨一块就需要20—30分钟时间,并且造成硬质合金的浪费和砂轮的大量消耗,所以最后决定利用电弧磨刀的原理用电弧切割,并随即做了设备与工具的准备工作,接着鞍钢先进生产者来我矿参观,介绍了樱桃园矿已经试验成功的电弧切割先进经
The Longyan Iron Ore Repair Shop accepted the task of repairing a large number of long-term carbide drill bits in March this year. These bits of carbide are used old debris, most of them have been chipping, oblique off, taking into account the repair in the collapse of the angle, oblique part of the alignment, polished, to the number of pieces And use it up. However, because the hardness of the cemented carbide is very high, it can not be shaved nor sawed. If the entire block is ground on a silicon carbide grinding wheel, it takes 20-30 minutes to grind it and cause the waste of the cemented carbide and the heavy consumption of the grinding wheel , So the final decision to use the principle of electric arc knife with arc cutting, and then did the preparation of equipment and tools, followed by Anshan Iron and Steel Company to visit mine advanced producers, describes the Cherry Park has successfully tested the arc cutting advanced