焊接工艺规程和维修培训教材.ppt

WELDING PROCEDURES AND REPAIRS焊接工艺规程和维修 MODIFICATION TO PIPING 管道改动 All new Piping fabrication work is done either at the Contractors Workshop or in a Qenos Workshop. 所有新管道的制造工作应在承包商车间或凯诺斯车间完成。 There is often a number of “tie-in” welds that will need to be done in the field 经常有很多的“搭接”焊将需要在现场完成。 *页 第三十页，共四十七页。 WELDING PROCEDURES AND REPAIRS焊接工艺规程和维修 MODIFICATION TO PIPING 管道改动 Depending upon the Design Code and Service Conditions, either Full, Partial, or No Radiographic Inspection will be required. 哪些管道需要射线检查，那些不要？ 根据设计规范和运行条件的不同，将需要完全、部分射线探伤或不需要射线探伤。 *页 第三十一页，共四十七页。 WELDING PROCEDURES AND REPAIRS焊接工艺规程和维修 MODIFICATION TO PIPING 管道改动 All Piping Spools will be subjected to a Hydrostatic Test in accordance with Code requirements. 所有管节都需按照规范要求进行一次水压测试。 Tie-in welds may be ether “plug hydrotested” (if associated with a flange) or be deemed as a “golden-weld” and only radiographed.搭接焊缝可进行“堵管水压测试”（如果与法兰关联） 或被视为“黄金焊缝”并仅进行射线探伤。？？ *页 第三十二页，共四十七页。 WELDING PROCEDURES AND REPAIRS焊接工艺规程和维修 MODIFICATION TO PIPING 管道改动 Following Inspection and Testing, the completed pipe spools will be sent off to a Specialist Abrasive Blasting Contractor who will apply the required surface coating. 检查和测试后，完成的管段将被送到一家专业喷砂承包商， 其将涂装所需的表面涂层。 ３２页 第三十三页，共四十七页。 WELDING PROCEDURES AND REPAIRS焊接工艺规程和维修 MODIFICATION TO PIPING 管道改动 Where Field Tie-In Welds are specified the Specialist Abrasive Blasting Contractor will initially abrasive blast the whole pipe spool, then apply a tape coating around the designated weld zone. 指定现场搭接焊缝时，专业喷砂承包商将在开始时对整个管段进行喷砂，然后将在指定的焊接区域周围缠上胶带层。 *页 第三十四页，共四十七页。 WELDING PROCEDURES AND REPAIRS焊接工艺规程和维修 MODIFICATION TO PIPING 管道改动 This zone will be left un-coated to prevent weld contamination. 保持此区域无防腐层，以避免焊缝污染。 *页 第三十五页，共四十七页。 WELDING PROCEDURES AND REPAIRS焊接工艺规程和维修 MODIFICATION TO PIPING 管道改动 Pipe Coatings specifically apply to: 管道防腐层专用于： Those for Nominal Ambient Operation. 用于标称环境操作的管道。 Those associated with Hot Operation. 与动火作业相关的管道。 *页 第三十六页，共四十七页。 WELDING PROCEDUR