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秦山核电站汽机房“H”、“”型钢柱的制作难点是保证焊缝全焊透质量、控制焊接变形量及孔群尺寸，本文介绍其焊接方法、工艺流程及控制扭曲变形的主要环节。
The difficulty in making “H” and “” steel columns in the steam turbine engine room of Qinshan Nuclear Power Station is to ensure the welding quality and control the amount of welding deformation and the size of the holes. This paper introduces the welding methods, the technological process and the key steps to control the distortion.