焊接结构课程设计任务书

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1、焊接结构课程设计任务书前言本课程是依据标准GB150—1989进行设计的。乙炔压力容器焊接结构的品种较为繁多，应用十分广泛。乙炔气瓶属于一种全焊结构，工艺严格，性能要求高。本次“乙炔气瓶的焊接结构工艺设计”涉及多种焊接相关知识，包括焊接结构、焊接材料、焊接方法及焊接工艺制定等各方面内容。其中还附有设计的结构图和总装图。本次设计理论和实践结合极为紧密。对专业的学习和以后的工作打下了良好的基础。在设计过程中，参阅了有关同类资料、书籍和网络资料。并得到老师的指导和帮助，在此致以深深的谢意！由于编者水平有限，设计难免存在某些需要进一步完善和改进的地方甚至错误，

2、恳请老师批评指正。设计者18焊接结构课程设计任务书目录前言一、乙炔气瓶焊接结构设计的简介·····················41、乙炔容器瓶的组成······························42、容器的简介及设计要求··························4二、材料的焊接性分析·······························4三、乙炔气瓶材料的选择·····························51、乙炔气瓶材料的性能要求························6（1）对强度性能的要求1

3、8焊接结构课程设计任务书····························6（2）对塑性的要求································6（3）对冲击韧度的要求····························6（4）对变形性能的要求····························7（5）对耐蚀性的要求······························71）抗氢腐蚀··································72）介质的电化学腐蚀························

4、··72、材料的确定····································818焊接结构课程设计任务书四、确定焊缝的位置·································8五、焊缝接头形式的设计·····························91、焊接接头的选择································10（1）筒体与封头的接头选择·························10（2）封头与附件的接头选择··························102、坡口的设计····

5、·································10六、焊接方法的选择·································1118焊接结构课程设计任务书1、瓶颈、易熔座与瓶体的焊接方法···············112、筒体上的环焊缝和纵焊缝的焊接方法············12七、焊接材料的选择·································12八、结构设计的工艺过程·····························13九、焊接工艺卡片的编制·························

6、····14十、课程设计总结···································14十一、参考文献·····································14附图一焊接接头及坡口的示意图····················17附图二乙炔容器的总装图··························18焊接结构课程设计任务书18附表一焊条电弧焊的工艺卡片······················19附表二二氧化碳气体保护焊焊的工艺卡片············20一、乙炔气瓶焊接结构设计的简介1、乙炔容器瓶的结构

7、组成及制造关键点（1）组成：主要有筒体（瓶体）、封头及附件（瓶颈、易熔座）等组成，其中筒体、封头是乙炔压力容器制造的关键部分。（2）制造关键点1）封头圆形封头的材料为整块钢板，在油压机上，用凸凹模一次热压成形。2）筒体本次筒体有一个筒节拼焊而成，筒节采用半自动切割下料，18焊接结构课程设计任务书下料前先划线。筒节在三辊卷板机上冷卷而成。筒节的坡口加工见下面的坡口设计部分。2、容器的简介及设计要求（1）结构名称：乙炔气瓶（见图1）（2）壁厚：10mm（3）设计压力：6Map（4）生产类型：大量生产二、材料的焊接性分析在压力容器用钢的化学成分中，碳、硫和磷

8、等元素对钢的焊接性十分有害，应将其含量控制在最低的限度以下。锰、硅、镍和钼等合金元素，在一定的