Weld repair welding of steel demand in Hainan
1, before returning to prepare for the repair plan, agreed by the project technical director, before implementation newspaper consent Engineer.
2, repair weld process and weld quality requirements as part of the repair weld the same number should not be more than twice as still unqualified after two repair, scratch repair plan should be developed by the Engineering technical director agrees, newspaper supervision after the engineer agreed before implementation.
3, the welding arc should be in the groove, should be filled crater arc; multi-layer welding joints should be staggered between the solder layer.
4, repair parts should be continuously welded, such as aborted when welding, should take heat, insulation measures to prevent the occurrence of cracks.
5, repair welding preheat temperature should be high preheat temperatures than under normal conditions, like welding.
6, repair welds should fill NDT report rework and repair records before and after construction, as the project acceptance and archives. Hainan Steel