共查询到14条相似文献,搜索用时 875 毫秒
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分析了多种国内外碱性焊条药皮渣系,设计了新的渣系.用均匀设计的思想方法和计算机软件来安排试验.选定9种药皮辅料作为自变量,并把每个自变量分成6个水平,共做了24个焊条小样.利用计算机统计分析脱渣性数据.结果给出了自变量与因变量之间的数学模型和趋势图.它们揭示出内在规律:多种药皮辅料对焊缝脱渣性的影响呈交互作用的形式,其中大理石与碳酸钡、硅灰石与铝镁粉、金红石与铁粉之间两两的交互作用都会使焊缝脱渣性提高;而铝镁粉与萤石、铝镁粉与碳酸钡之间两两的交互作用都会使焊缝脱渣性降低. 相似文献
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分析了多种国内外焊条药皮渣系与资料,设计了新的不锈钢焊条渣系.用均匀设计的思想方法和计算机软件来安排试验.选定 11 种药皮组分作为自变量,并把每个自变量分成 10 个水平,共做了 30 个焊条小样.把焊缝抗气孔性作为函数,利用计算机软件统计分析全部数据.分析结果给出了自变量与函数之间的数学模型和影响规律趋势图.从趋势图中可以看出,长石和云母对焊缝抗气孔性的影响呈正相关.从数学模型上可以看到多种药皮组分对抗气孔性的影响都呈交互作用的形式.利用数学模型和计算机软件可以对指标进行搜索和预报.Abstract: After analyzing some domestic and abroad electrode coating systems, a new slag system of stainless steel electrode was designed. The experiment was arranged by uniform design method and computer program. 11 coating components, each of them being divided into 10 levels, were selected as independent variables,and 30 tests were done in all. The statistical data analysis was done by using blowhole resistance as function and computer software, and then the trend diagrams of effects of every ingredient and the mathematical model between blowhole resistance of stainless steel electrode and 11 coating components were given. The effect of feldspar and muscovite on the mark of blowhole resistance is positive by trend diagrams. There are interactions between most coating components and blowhole resistance by mathematical model. The searching and forecasting can be done by using mathematical model and computer program. 相似文献
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为探索从药皮配方改善不锈钢焊条尾部发红开裂的技术路线,基于均匀设计计算机软件制作、研究了28个不锈钢焊条小样。试验中选定12种药皮辅料作为自变量,并把每个自变量分成7个水平;把焊接过程中焊条的药皮温升作为指标,并用热电偶和X—Y记录仪测定。通过数理统计给出了自变量及其交互作用对应于指标的数学模型和趋势图。它们揭示出多种药皮辅料对药皮温升影响的内在规律:①萤石或长石含量增加时(其它组分含量固定在中值),焊条药皮的温升减弱。②有些药皮辅料如云母、铁砂、白泥、大理石和金红石,对焊条药皮温升的影响呈交互作用形式。 相似文献
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基于均匀设计的思想方法安排试验,研究多种药皮辅料对焊条发尘量和发尘速率的影响规律.选定9种药皮辅料作为自变量,并把每个自变量分成6个水平,共做了24个焊条小样.记录焊接过程中焊条的发尘量和发尘速率,并在计算机上进行数据的统计处理.分析结果给出了自变量与因变量之间的数学模型和趋势图.结果表明,多种药皮辅料对发尘量的影响呈交互作用的形式,其中氟化钡与萤石、钛白粉与碳酸钡、金红石与萤石、铝镁粉与铁粉之间的交互作用都会使发尘量增加,而钛白粉与金红石的联合作用则会使发尘量降低.发尘速率也有相类似的结果. 相似文献
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焊条性能改进的研究进展 总被引:1,自引:0,他引:1
从焊条药皮组分调整、焊条冶金性能研究、熔渣结构研究三个方面综述了焊条性能改进的研究进展。指出药皮组分调整是改善焊条工艺性能、控制杂质含量的基本途径,而研究熔渣微观结构及其对焊条工艺性能的影响规律是改善焊条工艺性能的理论基础,并可从熔渣的微观结构及形成机理入手,指导焊条产品的设计。 相似文献
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In order to develop a basic electrode with low fume and good usability, a uew slag system has been designed after analyzing several basic electrode slag systems. Then in view of uniform design method, arranging the experiment points by it, the influenced laws of the uew system coating compouents on the arc stability had been searched. In the formula, niue coating compouents were taken as independent variables and they were divided into six levels in all twenty-four experiments. The arc stability was taken as function and taken down the data when welding and then put them into the computer to be processed statistically. The analysis results give the mathematical model and trend diagrams between independent variables and the function. They indicate that the effects of many coating compouents on the arc stability are in the mutual form. The mutual effects between CaCO3 and BaF2, BaF2 and BaCO3 , increases the arc stability separately. While the mutual effects between CaF2 and iron powder, the square item of iron powder itself decreases the arc stability separately. 相似文献
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镍铁型铸铁焊条工艺性能的计算机优化 总被引:3,自引:1,他引:2
在试验的基础上,应用二次混料回归设计试验方法设计计镍铁型铸铁焊药皮渣系的配方,借助计算机辅助优化,获得了综合工艺性能优良的镍铁型铸铁焊条。 相似文献