With a thin strip rolled into round or shaped steel tubing. Fill certain components within the powder, made by pulling seam cored wire. Steel tube filled with powder or drawn into seamless flux cored wire. This flux cored welding with high deposition efficiency. Steel adaptability, the trial period is short, so it's usage and scope has expanded. This wire is mainly used for carbon dioxide gas shielded arc welding, submerged arc welding and electroslag welding. The powder flux cored electrode coating composition generally similar. Flux cored wire containing slag, gas-making ingredients and stable arc welding does not require shielding gas, called Flux Cored Wire Self-shielded, suitable for the construction of large welded structures engineering.
In the early 1950s,
Flux Cored Wire Self-shielded already asked the city began to develop. But in 1957 began to be widely used commercially. This method can be said to be taken advantage of
submerged arc welding with CO2 (referring to solid) of the combination. Solder wire and wrapped in protective perimeter by CO2 gas can produce softer and stable arc and low spatter welding of its features. Early stage of development only large wire diameter wire (2.0-4.0mm). Flat welding for major artifacts and horizontal welding. Until 1972 began to develop a small wire diameter wire was greatly expanded the field of flux cored wire used.
Flux Cored Wire Self-shielded, is asking the city shortly after the gas shielded flux cored wire, it was developed, but also soon be widely recognized in the industry on a specific purpose.
