are welded with tube sheets vertical 怎么理解? Welding Technique Position: Flat (ASME IX lG/lG rotated ) to facilitate shielding. The Contractor shall approve any other positions which shall be subject to a separate weld procedure qualification. Tube end welds of heat exchangers are frequently welded with tube sheets vertical. 问题: 1. rotated 怎么讲? 2. 换热器 的管端焊接常常是与管板立焊的? (vertical怎么理解?是指焊接方向是“立焊”还是“管板是立式”?) [ ]查看更多5个回答 . 1人已关注