A43柱制造工艺.docVIP

目录 引 言 3 1 工业厂房A4-3柱概述 4 1.1 工业厂房A4-3柱的特点 4 1.2 工业厂房A4-3柱的技术参数 4 1.3 工业厂房A4-3柱制造引用标准 5 2 工业厂房A4-3柱制造工艺设计 5 2.1 工业厂房A4-3柱材质的焊接性分析 5 2.2 预防焊接缺陷的措施 8 2.3 焊接方法和设备及焊接材料的选择 11 2.4 焊接工艺评定与焊接工艺规程 14 3 工业厂房A4-3柱制造工艺 25 3.1 工业厂房A4-3柱制造工艺流程 25 3.2 钢材的预处理 25 3.3 钢材矫正 26 3.4 划线和号料 28 3.5 下料和边缘加工 29 3.6 制孔 31 3.7柱肢H型钢装配焊接 32 3.8 槽形柱肢的装配与焊接 37 3.9 柱身装配焊接 37 3.10 柱头装配焊接 38 3.11 柱头与柱身装配焊接 39 3.12 总装配焊接 40 3.13 焊后检验 41 3.14 涂装 43 结 论 44 致 谢 45 参考文献 46 摘 要 随着我国钢结构工业的快速发展，焊接钢结构厂房在建筑工业厂房制造中应用的越来越广泛，而焊接的钢结构柱是组成工业厂房的重要构件之一。 工业厂房A4-3柱结构为格构式，通过对厂房柱的材质Q345B钢进行焊接性分析，并且根据厂房A4-3柱的结构特点从而选择了焊接方法、焊接设备及焊接材料。柱头H型钢和柱身分肢H型钢的翼缘板和腹板之间的角焊缝与柱身槽型分肢角钢和钢板之间的角焊缝均选择了埋弧焊。焊接材料选用焊丝H08MnA和焊剂HJ431,焊丝直径为Φ4mm。定位焊、柱身缀条与节点板之间的搭接焊缝以及节点板与柱身连接的对接焊缝，选用CO2气体保护焊的焊接方法，选用焊丝型号为ER50-6，焊丝直径Φ1.2mm。 根据《建筑钢结构焊接技术规程》JGJ81－2002GB50205－2001 关键词。 厂房柱；焊接性；焊接工艺；制造工艺 Abstract With the steel construction industrys development rapidly of our country,the factory building of welding steel construction has widely used in the construction of factories，and the welding steel column is one of the most important components of composing industrial factory. The A4-3 column of factory building is lattice form,welding equipment and welding method and welding materials are choosed by the weldability of the material of Q345B steel and the constucture characteristics of the A4-3 column of factory building.SAW is used to weld the fillet weld of the stigma between the H-beamand and the limb of flange plate of the column identity and the fillet weld of the stigma between the pillar groove sub-limb and steel plate.Welding wire is H08MnA and welding flux is HJ431,the diameter of wire is Φ4mm.GMAW is used to tack welding，the lap weld between the pillar batten and the gusset plate as well as the butt weld between gusset plate and the pillar. Welding wire is ER50-6 and the diameter of wire is Φ1.2mm. According to the requests of Technical specification for welding of steel structure of building (JGJ81-2002) and Code for acceptance of construction quality of