flux cored wire manufacturing process control is very strict to ensure that the filler metal from the steel skin material and the flux contained in the ingredients, manufacturing before the size and chemical composition are required to check the quality. Welding Electrodeconsumables internal space is restricted, the flux particle size is more important, the formation of particles similar to Bird's Nest-like combination of constituent elements is uneven flux. Most of the flux cored wire by a flat sheet metal strip into a U-shaped cross section, paragraph by paragraph, after the roll volume and granular flux fill the U-shaped metal tank volume steps and then the final seal roll flux tightly roll pressure in a tubular wire rolled into a tubular wire after a series of pull movements become final wire diameter, this pulling action can also be filled flux uniform fixed in the  Welding Wirethe Sipi material within. Manufacturing / production process wire internal control caused by poor part of the wire formed hollow (no flux) is the key to the flux cored wire production quality. Wire surface also need smooth ride and clean otherwise it will affect the smooth wire feed and welding current pass fast. Welding wire packaged in rolls or barrels in order to avoid wire entanglement or impairment, usually rolls of wire are plastic encapsulation and place the desiccant to avoid material moisture, encapsulation materials and then into the cardboard box sent. Section in the skin material is thicker and more for docking (BUTT,) mode welding dose less, the vast majority of carbon steel and low alloy steel, wire diameter 2.8mm and below are the cross section of such a shape, such as stainless steel high- alloy and wire diameter is large, domestic demand and a larger space of wire inclusive cross sectional shape of flux and alloying elements into a multi-spliced ??or heart-shaped (LAP and the HEART SHAPED) connector.