本科论文目录摘要............................................................................................................................IAbstract.....................................................................................................................II引言...........................................................................................................................11 绪论........................................................................................................................21.1 课题背景.....................................................................................................21.2 拉管机国内外发展状况.............................................................................21.2.1 国内外拉管机的发展史..................................................................21.2.2 国内外拉管机的发展趋势..............................................................22 拉管机简介............................................................................................................42.1 拉管机的基本结构.....................................................................................42.2 拉管机初步方案论证.........................................................................42.2.1 设计拉管机运行路线......................................................................52.3 管材拉拔时所需要的润滑.........................................................................52.3.1 各种管材拉拔时锁用的润滑剂......................................................52.4 钢管生产质量的影响因素.........................................................................62.4.1 空拔时钢管产生纵裂的影响因素..................................................62.4.2 防止空拔时钢管纵裂的方法..........................................................62.4.3 空拔时钢管产生横裂的影响因素..................................................72.4.4 防止空拔时钢管横裂的方法..........................................................72.5 ...
