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针对高锰钢堆焊及补焊时出现的问题，开发、试制了EDMn－B－OO高锰钢堆焊焊条，对其配方进行了设计及优化，并且对焊条的施焊工艺及使用性能进行了测试研究。该焊条采用FeO－MnO渣系，熔渣的活度较大，熔点较低，有利于减小热裂及气孔倾向。试验结果表明：焊条的工艺性能良好，工艺适应性强；直径为4.0mm的焊条，当电流降至80A时电弧仍可稳定燃烧；熔敷金属的热裂倾向极小；加工硬化后硬度是原来的3倍多，加工硬化效果显著，耐磨性好。
In order to solve the problems of surfacing welding and repairing welding of high manganese steel, EDMn-B-OO high manganese steel surfacing electrode was developed and trial-fabricated. Its formulation was optimized and designed. The welding technology and performance of welding rod The test research. The electrode adopts FeO-MnO slag system, slag activity is larger, lower melting point, help to reduce the thermal cracking and porosity. The test results show that the electrode has good process performance and strong adaptability to the process. The electrode with the diameter of 4.0mm can still burn steadily when the current drops to 80A. The tendency of the hot cracking of the deposited metal is minimal. More than 3 times, significantly hardening effect, good wear resistance.