建筑钢结构工型钢焊接 毕业设计论文

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1、建筑钢结构工型钢焊接摘要本文主要针对钢结构制作当中所用到的H型钢焊接进行详细论述，由于钢结构的材料力学性能及特点决定着它的焊接性，所以在设计过程中必须选择合适的焊接顺序、焊接方法和焊接工艺参数。由于钢结构制作过程中大部分都是采用的H型钢焊接，翼板和腹板的拼接所采用的是埋弧自动焊，构件之间的连接主要是焊缝连接，所以焊接质量要十分重视。预防较长的H型钢在生产过程中产生变形，必要情况下采取二次矫正。最后对焊接过程中容易出现的缺陷进行分析，并提出有效的防止措施。关键词：H型钢翼板腹板1目录前言···········

2、·························································1第一章绪论·························································2第一节钢结构组成部分···························································2第二节H型钢的特点························································

3、··2第二章钢结构H型钢制作工艺··································3第一节H型钢焊接主要焊接前准备················································3一、开坡口双面焊································································3二、焊接收缩量加工余量的计算·················································3三、焊接

4、H型钢组对····························································3四、H型钢定位焊接·····························································3五、引弧板、收弧板的设置·····················································4六、腹板厚度小于6mm，宽度大于600mm的反变形处理············4第二节H型钢自动埋弧焊接工

5、艺及变形控制·····································4一、自动埋弧焊的焊接参数的确定·············································4二、焊接变形的控制······························································6三、焊接变形矫正·································································6第三节质量

6、检验·····································································7第三章焊接缺陷的产生危害及其防止措施·····················9一、焊缝尺寸不合要求·································································9二、裂纹危害及防止措施·························································

7、····9三、未熔合危害及防止措施·························································11四、未焊透危害及防止措施··························································11五、气孔危害及防止措施·····························································12六、夹渣危害及防止措施·······················

8、········································12参考文献······················································································14致谢········································································