二、工法内容材料目 录1 前言...........................................................................................................................12 特点...........................................................................................................................13 适用范围...................................................................................................................14 工艺原理...................................................................................................................15 工艺流程及操作要点..................................................................................................25.1 施工流程.............................................................................................................................................................25.2 主要施工方法及技术要求.................................................................................................................................25.2.1 制定方案、施工准备......................................................................................................................................25.2.2 钢板裁剪下料..................................................................................................................................................35.2.3 翻边、折方......................................................................................................................................................35.2.4 角钢下料、加固框预制..................................................................................................................................35.2.5 风管组对、套加固框......................................................................................................................................35.2.6 风管纵向焊接成型..........................................................................................................................................45.2.7 风管横向焊接.....................
