【作者】 张存伟；

【导师】 张汉谦；

【作者基本信息】 太原理工大学 ， 材料加工工程， 2004， 硕士

【摘要】 焊接电流和电弧电压是焊接过程两个主要电参数，在焊接过程中焊接电参数的变化与焊条的工艺性有着密切的联系，过去测试焊接电参数一直是用光电示波器来进行的，得到的的电弧电压、焊接电流波形图尽管形象直观的描述了焊接过程的电参数变化，但很难对相关的电弧物理参数进行精确的定量分析和评价。 德国汉诺威大学发明的汉诺威焊接参数分析仪是当今焊接电参数测试的最新技术。本论文采用该分析仪对E4303、E5015、E5016结构钢焊条，E308不锈钢焊条等焊接材料进行了测试，准确描述了被测焊条电弧电压和焊接电流的随机变化，绘制了电弧电压、焊接电流波形曲线和电弧电压、焊接电流的概率密度分布图，得到熔滴的短路时间T1、燃弧时间T2、短路周期Tc等概率密 太旅理工大学硕士研究生学位论文度分布图以及焊接电流、电弧电压、短路时间、燃弧时间的最大值、最小值、平均值等相关数据。论文对测试的结果进行描述，对被测焊条电弧物理特性和焊接工艺性进行了分析，为建立基于汉诺威焊接参数分析仪的焊条工艺水平的评价体系做了理论和试验资料的准备。更多还原

【Abstract】 In welding process, welding current and arc voltage are two main electric parameters, and their change has close contact with usability of covered electrode. In the past welding electric parameters always were measured by photoelectric oscilloscope. Though oscillograms of arc voltage and welding current which are gotten can image and directly describe change of electric parameters in welding process, it is difficult that the related arc physics parameters are accurately quantitatively analyzed and evaluated.ANALYSATOR HANNOVER invented by University of Hanover, Germany is nowadays the latest technique of measuring welding electric parameters. In this paper, E4303, E5015, E5016 type structural steel electrodes and E308 type stainless steel electrode are measured by ANALYSATOR HANNOVER. Random change of arc voltage and welding current of covered electrodes is accurately described, oscillograms and probability density distribution diagrams of arc voltage and welding current are drawn, frequency distribution diagrams of short-circuiting timeTl, burning timeT2 and cycle time Tc of droplet and maximum values, minimum values and mean values of arc voltage, welding current, short-circuiting time, and burning time are determined. In this paper, measure results are described, arc physics characteristic and usability of covered electrode are analyzed, and preparations of theories and trail data for establishing evaluation system of usability of covered electrode on the basis of ANALYSATOR HANNOVER are made.更多还原