Copper and aluminum copper and aluminum wire flux cored wire │ │ │ copper and aluminum welding aluminum and copper wire copper aluminum copper aluminum welding flux cored wire │ 
 1 species: (tensile strength) is mainly used for brazing copper and aluminum welding copper and aluminum, has excellent mobility, high tensile shear strength, excellent corrosion resistance, electrical conductivity. 1, excellent liquidity and operating performance without high skills; 2, good conductivity to the conductivity of copper, 60%; 3, excellent mechanical properties: excellent toughness, and copper with a very solid, seismic impact bending, breaking through conventional copper and aluminum brazing flux cored wire solder and copper, combined with poor problem; 4, the ability of the instantaneous high temperature strength remains good, while the market for conventional copper and aluminum wire products, medicinal low melting point, softening point temperature is low, not high strength after soldering, so if a large transient short-circuit current times the risk of local high-temperature lead off. 
 2: (high conductivity) copper and aluminum flux cored wire for the electrical industry is a new generation of high-performance design and production of welding materials, environmental protection, it can be between the copper and aluminum, copper bus bar with aluminum foil between the aluminum welding between aluminum . Solder wire close to the level of imported components and more than 99%, in line with the EU RoHS green standards. Conductivity to the conductivity of copper 60%, to avoid repeated large current moments of local produce by the instantaneous high temperature fracture. Copper and aluminum solder alloy to achieve connectivity, copper and aluminum transition layer between solder, copper and aluminum to avoid generating a direct connection connections copper and aluminum compounds and brittle internal stress and eliminate hidden dangers after cracking. Of solder in copper and aluminum base metal wetting, liquid flux play a key role, is composed of a variety of fluoride molten salt eutectic elements, non-corrosive flux, stable, non-absorbent oxidation in air can be long-term storage. Powder flux can also be used distilled water into a paste with Solder. 
 Currently, small and medium power transformers and transformer manufacturing industry to reduce product costs, the use of aluminum instead of copper, but the process of making sure the product will meet the phase of aluminum and copper welding problems. As aluminum and copper (dissimilar materials), poor welding, must be a special solder, flux, the operation is also different from the welding process. 
 My company made by France (2.0MM flux solder wrapped in diameter, made of flux cored wire - cored solder) for development of tests and more than 200 transformer plant by domestic production, the effect is very good. Not only easy to operate, bonding, high strength, good wetting, and corrosion-free connectors. Wire diameter of 2.0MM, 1 公斤 wire about 75 meters. Wire melting temperature of 420-480 degrees Celsius. 
 The use of this new type of copper and aluminum wire, aluminum makes it possible to replace copper wire, the lower the price of aluminum to replace copper wire later, you can greatly reduce production costs.