Influence of flux granularity on process
The more particles, the less strong welding mouth.
In simple terms, the degree of fine particle flux flux welding the weld smooth, large particle flux welding the weld rough, sometimes seen in the weld surface pits, but the flux particles too small, welding when the exhaust air is blocked, the surface or near surface gas hole to weld, so now the use of granular flux the basic 10~40 head in this range
Submerged arc welding technology occupies a large proportion in the manufacturing industry of metal structure, especially for the production line of the factory. Submerged arc automatic welding process is widely used because of its high efficiency, stable quality, safety and sanitary characteristics.At present, the automatic submerged arc welding process is mainly used in the production of low carbon steel and low alloy steel welding on the steel structure of this kind of welding process, the most prominent problem is the welding material in the water is one of the main causes of cracks of the workpiece so that the submerged arc welding process of welding the structure, must be strict screening and drying of flux!
