一、前言遵循伟大领袖毛主席关于“开发矿业”的伟大指示,我们进行了矿山设备磨损部件的堆焊试验和扩广工作。冶金矿山采掘、破碎、选冶等设备磨损均比较严重,由于磨损,经经常更换条件,这不仅消耗大量备品、备件,且由于检修停产大大影响矿石的产量。为此,耐磨堆焊对于提高设备使用寿命,发 I. INTRODUCTION Following the great instructions of the great leader Chairman Mao on “developing the mining industry”, we conducted surfacing welding tests and expanded work on wear parts of mining equipment. Metallurgical mining equipment such as excavation, crushing, and dressing and smelting are relatively serious. Due to wear and tear, the conditions are often changed. This not only consumes a large amount of spare parts and spare parts, but also greatly influences the output of ore due to overhaul. For this reason, hardfacing is used to increase the service life of the equipment.