核级BOSS焊缝返修处理工作涉及核电厂一、二回路管道系统开口作业，BO

Nuclear-level BOSS welding seam rework processing involves opening operations of the primary and secondary loop piping systems of nuclear power plants. BOSS welding seam processing is mainly for cutting, grinding and welding operations, and foreign objects such as iron filings and welding slag are likely to enter the pipeline system. Foreign objects entering the system or equipment will cause the equipment to degrade or malfunction, and in severe cases will directly damage the equipment and affect nuclear safety. Therefore, the foreign matter problem poses a great threat to the safe and stable operation of nuclear power plants. The BOSS weld repair project has a higher risk of introducing foreign objects, and the use of special tools for preventing foreign objects greatly reduces the risk of foreign objects entering the system and provides a guarantee for the safe and stable operation of system equipment.

Nuclear-grade BOSS weld repair treatment work involves the nuclear power plant one and two circuit pipe system opening operation, BOSS weld treatment is mainly cutting grinding, welding operations, easy to produce iron chips, welding slag and other foreign materials into the pipeline system. The entry of foreign material into the system or equipment can cause the device to be degraded or abnormally functional, and in severe cases it will directly lead to equipment damage, affecting nuclear safety. Therefore, the foreign material problem poses a great threat to the safe and stable operation of nuclear power plants. The risk of foreign material introduction in BOSS weld repair project is high, and the use of special tools for foreign objectprevention greatly reduces the risk of foreign material entering the system, and provides a guarantee for the safe and stable operation of the system equipment.

Nuclear grade boss weld repair work involves the opening operation of primary and secondary circuit piping system in nuclear power plant. Boss weld treatment mainly includes cutting, grinding and welding, which is easy to produce iron chips, welding slag and other foreign matters into the pipeline system. Foreign matter entering the system or equipment will lead to equipment degradation or abnormal function, which will directly lead to equipment damage and affect nuclear safety. Therefore, the foreign matter problem poses a great threat to the safe and stable operation of nuclear power plant. The risk of foreign body introduction in boss weld maintenance project is high, and the use of special tools to prevent foreign matters from entering the system greatly reduces the risk of foreign matters entering the system, and provides guarantee for the safe and stable operation of system equipment.<br>