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通过分析1Ni9钢各项基本性能及其焊接特性,结合风机叶轮焊接接头强韧性要求,依均匀设计法安排试验,最终确定17种碱性焊条药皮配方;按电焊条焊接评定标准判定每组焊条的焊接工艺性能。运用统计分析方法研究焊条工艺性能与药皮辅料之间的关系,给出数学模型与趋势图。结果表明:多种药皮辅料对飞溅、焊缝脱渣性等工艺性能的影响呈交互作用的形式;回归分析能够把多种药皮辅料交互作用对工艺性能的影响进行量化,并可得出辅料交互作用下各自最佳的含量范围。
By analyzing the basic properties of 1Ni9 steel and its welding characteristics, combined with the requirements of the toughness of the fan impeller welded joints, according to the uniform design method to arrange the test, and ultimately determine 17 kinds of alkaline electrode coating formula; The welding process performance. Using statistical analysis method to study the relationship between the electrode properties and the coating material, the mathematical model and the trend chart are given. The results showed that the effects of many kinds of coating materials on the process performance such as spatter and weld slag desiccation were in the form of interaction. The regression analysis could quantify the influence of the interaction of many coating materials on the process performance, Excipients interact with their best content range.