High frequency straight seam welded pipe control quality, in order to safely carry out production operations, is also a necessary factor to ensure the safety of operators. The main application fields include large-span grid engineering, steel structure engineering construction, power and ultra-high voltage transmission and distribution engineering, mechanical engineering, bridges, bridges, railway stations, airports, stadium steel structure engineering, municipal pipeline network, foundation piling, water gas pipeline and highway construction and other supporting facilities.


1. Inspect the inaccuracy of welding wire and flux standards according to welding technical specifications to avoid misoperation of welding wire and flux quality accidents.


2. The corresponding welding measures should be taken after the monitoring of welding environment and the bad welding environment (temperature below 0 C, relative humidity above 90%).


3. Check whether pre-welding before groove scale, including gap, blunt side, observation point and wrong port meet technical requirements.


4. The technical parameters of submerged arc welding, such as welding current, welding voltage and welding speed, are inaccurate.


5. Supervising welders in submerged arc welding, making full use of the length of steel tube side arc plate, and strengthening the use of arc power source in welding platform, will help to improve the quality of pipe end welding.


6. The supervision of welders during welding is not to clean up slag, not to complete the processing of joints, grooves must not be greasy, rusty, slag, water, paint and other dirt.