箱形井架为空间框架钢结构件,既要保证焊缝质量,又要控制焊接变形,难度较大。兖州矿业(集团)公司机械制修厂通过工艺分析和试验研究后确定工艺方案,制定并严格实施工艺规程,使问题得到圆满解决。 Box-shaped derrick for the space frame steel structure, it is necessary to ensure the quality of the weld, but also to control the welding deformation, more difficult. Yanzhou Mining (Group) Co., Ltd. mechanical workshop through process analysis and experimental study to determine the process plan to develop and strictly implement the process of order, the problem was satisfactorily resolved.