环保型碱性低氢焊条的交流稳弧性

孟工戈; 储继君; 栾敬岳; 谷丰; 李丹

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环保型碱性低氢焊条的交流稳弧性
孟工戈¹, 储继君², 栾敬岳², 谷丰¹, 李丹¹
1.哈尔滨理工大学材料科学与工程学院, 哈尔滨 150040;2.机械科学研究院哈尔滨焊接研究所, 哈尔滨 150080

摘要:

分析了多种国内外碱性焊条药皮渣系,设计了CaO-CaF₂-BaO-TiO₂-SiO₂渣系.用均匀设计的思想方法和计算机软件来安排试验.选定9~11种药皮组分作为自变量,并把每个自变量分成5个水平,共做了29个焊条小样.把交流稳弧性能作为目标函数,利用数理统计软件分析该指标数据.得出了多种药皮组分对焊条交流稳弧性能指标的影响趋势图;建立了自变量与因变量之间的多项式数学模型.结果表明,借助趋势图和数学模型,可以探讨改善焊条交流稳弧性的方向,并进行指标的优化搜索.

关键词: 碱性焊条交流稳弧性均匀设计优化搜索

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基金项目:哈尔滨市科技攻关计划项目"环保节能型低氢焊条研制"(2009AA4G066)

AC arc stability of environmental protective type of basic and low hydrogen electrode

MENG Gongge¹, CHU Jijun², LUAN Jingyue², GU Feng¹, LI Dan¹

1.School of Material Science & Engineering, Harbin University of Science and Technology, Harbin 150040, China;2.Harbin Welding Institute, China Academy of Machinery Science and Technology, Harbin 150080, China

Abstract:

An electrode coating slag system CaO-CaF₂- BaO-TiO₂-SiO₂ has been designed base on analyzing several domestic and abroad basic slag systems. The experiments were done with uniform design method and computer aided analysis. Nine to eleven coating components were taken as independent variables and they were divided into five levels in all twenty nine experiments. The AC arc stability was taken as target function and data were analyzed with mathmatical statistic software. The results given the influencing trend figures of coating components on AC arc stability and multinomial mathematical model between independent variables and function. With these trend figures and mathematical model the improving direction of electrode for AC arc stability can be inquired and be searched target optimization.

Key words: basic electrode AC arc stability uniform design optimization searching