1, removal of the welding surface of the oxide, reducing the solder melting point and the surface tension as soon as possible to reach the brazing temperature. To protect the weld metal in the liquid from the impact of harmful gases in the ambient atmosphere. 3, so that the liquid solder the appropriate flow rate to fill the brazing seam. Flux melting point should be lower than the melting point of brazing 10-30 ° C, under special circumstances allows the Welding Wire point higher than the brazing. The melting point of the flux too small solder premature melting flux composition of flux loss of activity due to evaporation, and the role of parent material so that the solder melts. The flux of choice usually depending on the nature of the oxide film. Alkaline oxide film such as: the flux of Fe, Ni and Cu oxides often acidic boron anhydride (B2O3), the acidic oxide film such as to deal with cast iron oxide film with high SiO2 commonly used with alkaline Na2CO3 of Welding Flux makes it into the slag generated fusible Na2SiO3.
Steel Corporation has developed new varieties of high-strength heat-resistant wire ER55-B2-Mn successful line of two steel rolling mill production line off the assembly line. The varieties of products per ton more than Mig Welding Wires Chuangxiao more than 500 yuan.
New varieties of high-strength heat-resistant wire ER55-B2-Mn user requirements, tailored development and production of personalized products are mainly used in the welding and fabrication of high temperature steam pipes and heat sealed container than Welding Wirestrength The 400MPa about. While meeting the requirements of equipment and product quality, plant and technology center and other departments work closely together to combine their actual development of the smelting process standards. Accurately calculate the amount of alloy material, clearly defined the timing of various elements, converter molten steel temperature and composition control, ensure product quality to customer satisfaction.