Flux cored Wire

- Aug 30, 2017 -

With thin steel strips rolled into a circular or profiled steel tube, filled with a certain component of the powder, the tension made of slotted flux-cored wire, or filled with steel tube to pull the powder made of seamless flux-cored wire (see FIG). With this welding wire weld The high efficiency, good adaptability to the steel, trial-production cycle is short, thus its use and use of the scope of expanding. This kind of welding wire is mainly used for carbon dioxide gas shielded welding, submerged arc welding and electroslag welding. The powder composition in flux cored wire is generally similar to that of electrode. The flux cored wire, which contains slag, gas-making and ARC-stabilized components, does not need to be protected when welding, and the self shielded flux-cored wire is suitable for the construction of large-scale welded structural engineering.

Early in the 1950, the gas shielded flux cored wire has begun to develop and asked the city, but it was not widely commercially available until 1957. This method can be said to be taken from the combination of the advantages of submerged arc welding and CO2 welding (refers to solid), the flux is wrapped in the wire and by the protection of the peripheral CO2 gas to produce a softer and more stable arc and low splash characteristics. At the beginning of the development, only large wire diameter wire (2.0-4.0mm) is used for flat and transverse welding of major workpieces. Until 1972, small wire diameter welding wire began to develop greatly expanded the field of flux-cored wire used.


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