welding box-section crane girder 焊接箱形吊车梁
The welding technology used for preheating flash butt welding was evaluated for workpieces with large welding section.
针对大截面工件的闪光对焊工艺特点，确定了预热闪光焊的焊接工艺。
Perform monitoring, inspection and quality control at in-house and sub-contractor steel fabrication and welding section .
在工厂内及分包商处监督并检查钢结构和焊接工作的质量。
These models not only establish a basis for the forecasting of welding section form, but also furnish a basis in the designing of welding process parameters.
为焊缝截面形态的预测及焊接规范参数的设计提供了依据。
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