文档介绍:HARBIN INSTITUTE OF TECHNO,OOY
***高等教育
本科毕业设计(论文)
题目:浅析数字超声检测技术及应用 函授站: 济南函授站
年 级: 2010级
专 业: 泡翎
姓 名: 幕
指导老师: 罗林聪
摘要
单面焊接双面成形的焊接质量受到了焊接设备、焊接工艺流程、操作 技术水平的限制。本文详细的介绍了焊接电源、焊接电流、焊接速度、电 弧电压、焊接层数、焊条类型、焊条直径等工艺因素对单面焊接双面成形 焊接技术质量的影响和造成的相关缺陷。详细的分析了单面焊接双面成形 技术焊接质量差所引起的一系列问题及造成的质量差的原因,提出了相应 的防治措施,解决单面焊接双面成形技术的缺陷,使单面焊接双面成形技 术进一步完善,加以推广,并对单面焊接双面成形作业具有一定的指导作 用。
关键词:单面焊接双面成形,焊接,质量,原因,措施
Abstract
Welding of one side soldering two-sided forming the mass was subjected to weld an equipment, soldering material process flow, operate the restriction of technique horizontal. This text introduced to weld power supply, weld current,weld velocity, give or get an electric shock are voltage and weld the impact that the craft factors, such as number, welding rod shape and welding rod diameter etc. welds mass vs the one side soldering two-sided forming technique and result in detail of related bug. Analyzed an one side soldering two-sided forming technique to weld mass in detail bad a series of problem sparked and result in bad mass reason, proposed to homologously prevent from measure, clinch technical bug of two-sided forming of one side soldering, make two-sided forming technical of one sid soldering further perfect, take into to expand, and have a certain instruction action to the one side soldering two-sided forming.
Keywords: the one side soldering Be two-sided to take shape, weld, mass,
reason, measure
刖B
1单面焊接双面成形技术的概念
2单面焊接双面成形常见的焊接缺陷
尺寸上的缺陷
结构上的缺陷
性质上的缺陷
3单面焊接双面成形质量差引起的问题
,降低结构的质量和使用寿命
,引起安全事故
4单面焊接双面成形焊接质量差的原因分析
焊接电流
电弧电压
操作因素
5防止单面焊接双面成形焊接产生焊接缺陷的措施
做好焊前准备
结论
参考文献
谢辞
、八一^
刖B
焊接技术是一门重要的金属加工技术,尽管焊接技术发展很快,自动 化程度也越来越高,但手工电弧焊仍占有不可替代的地位。尤其在小直径 容器和管道的焊接方面,单面焊接双面成形焊接技术的作用更显突出。优 质的单面焊接双面成形焊接的焊缝表面应圆滑过渡至母材,表面不得有裂 纹、未熔合、夹渣、气孔、焊瘤、咬边等缺陷,焊缝内部同样不允许有缺
陷。但焊接过程中由于设备、材料、