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为了解决金属的磨损问题,延长零件的使用寿命,广州焊条厂、华南工学院和广州航道局科研所等研制出一种新型堆焊焊条——低碳马氏体耐磨堆焊焊条。其中一种《广堆012》已投产,其性能为HRc≥45;堆焊层金属主要化学成份(％)为:C 0.15、Cr5.3、Mn1、V0.2。低碳马氏体又叫板条状马氏体(位错型)。它本身不存在显微裂纹,故综合机械性能好。经生产性试验,新型焊条与常用堆焊焊条(例如堆017)相比,在硬度相同条件
In order to solve the problem of metal wear and extend the service life of parts, Guangzhou Welding Factory, South China Institute of Technology and Guangzhou Waterway Bureau Scientific Research Institute developed a new type of surfacing electrode - low carbon martensitic wear resistant surfacing electrode. One of the “Guangdui 012” has been put into operation, its performance HRc ≥ 45; surfacing metal main chemical composition (%): C 0.15, Cr5.3, Mn1, V0.2. Low carbon martensite, also known as lath martensite (dislocation type). It does not exist micro-cracks, so the overall mechanical properties. The production test, the new electrode and commonly used welding electrodes (such as heap 017) compared to the same hardness conditions