文档介绍：西安技师学院 10 届焊接预备技师班毕业论文题目:钨极氩弧焊管- 管对接操作要点姓名: 蒋国祥专业: 焊接技术及自动化学号: 10JHG117 指导教师: 贾靖马江涛时间: 2010/4/30 目录摘要.............................................................................................................................. 1 关键词............................................................................................................................ 1 一、引言........................................................................................................................ 1 二、焊接材料分析........................................................................................................ 1 ...................................................................................................... 1 ...................................................................................................... 1 .................................................................................................... 1 三、焊前准备................................................................................................................ 2 .................................................................................................... 2 .................................................................................................. 2 ...................................................................................................... 2 .............................................................................................................. 3 四、焊接过程.............................................................................................................. 3 .................................................................................................................. 3 .............................................................................................. 3 ...................................................................................................... 4 .................