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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易磨损部件的堆焊试验和推广工作。冶金矿山采掘、破碎、选冶等设备的磨损均比较严重。由于磨损,须经常更换备件,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,发挥现有设备的潜力和作用是有很大意义的。为尽快做好这项工怍,我们先着手于堆焊焊条的试验研究工作。根据矿山设备工作情况和由于构件粗大,不可能进行焊前预热、焊后缓冷及热处理等特点,再结合我国矿藏资源,我们研究试制了锰铬钼及钨铬钼合金系统及适用于直流焊机和交流焊机施焊的三个品种的焊条。在白银有色金属公司及本溪钢铁公司进行试点中,堆焊了电铲花
Preface Following the great instructions given by Chairman Mao, the great leader, on “developing the mining industry,” we conducted the overlay test and promotion of the easily worn components of mining equipment. Metallurgical mining, mining, crushing, dressing and other equipment wear and tear are more serious. Due to wear and tear, spare parts must be frequently replaced, which not only consumes a large amount of spare parts and spare parts, but also greatly affects the production of ore due to suspension of maintenance. To this end, wear-resistant surfacing for improving the service life of equipment, play the potential of existing equipment and role is of great significance. To do this work as soon as possible, we first set foot in welding test research. According to the working conditions of the mining equipment and due to the coarse components, it is impossible to conduct the preheating before welding, post-welding slow cooling and heat treatment, combined with the mineral resources in our country, we have researched and manufactured the manganese, chromium, molybdenum and tungsten-chromium-molybdenum alloy systems and the DC Welding machine and welding machine welding three varieties of welding rod. In the pilot project of Silver Nonferrous Metals Company and Benxi Steel Company, the electric shovel was deposited