In the process of producing pressure vessel, if we know the break angle a, open the V gap with a flat edge, the edge height is h, the crack depth is H, and the gap of the weld is B. How do we calculate the total flux required for the L long bead? If detailed calculation formula is the best. Thank you
When the wire is determined (usually depends on the steel welding), supporting the use of the flux is a key material, it directly affects the mechanical properties of weld metal (especially plasticity and low temperature toughness), crack resistance, welding defect rate and welding productivity etc.. The match weight ratio between welding wire and flux is welding wire: flux =1.1 to 1.6, depending on type of welding joint, type of welding flux and welding specification parameter. Compared with the flux melting, sintering flux amount is saved, can use less about 20%.Our country uses flux at around 50 thousand tons, of which about 70% is smelting flux, and the other is non smelting flux. Developed countries in Europe and America are mainly non smelting flux, about 80% and more than 90%, but there are still smelting flux production, sale, smelting flux, this lasting productivity related to some of its inherent characteristics.
Submerged arc welding (including submerged arc welding and electroslag welding etc.) is a kind of important welding method, its inherent stable welding quality, high welding productivity, no arc and smoke rarely etc., make it become the pressure vessel and pipe manufacturing, box beam and other important steel production in the main welding method. In recent years, many new welding methods with high efficiency and high quality have appeared, but the application of submerged arc welding is still not affected. From the point of view of the proportion of deposited metal weight in various welding methods, submerged arc welding accounts for about 10%, and has not changed much over the years.
Previously, we have been submerged arc welding according to the quality of wire 1.4 times, may be a bit moreRecently, with pole overlaying welding, it has been found that the ratio of flux and welding band 0.9 is enough
