copper clad aluminum flat bar is a new kind of low cost and energy saving conductor material with aluminum as the core and copper coating.Copper and aluminum are both highly conductive materials. copper clad aluminum flat bar combines the advantages of strong antioxidant property of copper, low contact resistance and low cost and light weight of aluminum.
Compared with similar products on the market, the copper clad aluminum flat bar developed by our company has the following characteristics: copper and aluminum are combined by solid-liquid fusion, and a composite layer is formed by fusion at the interface. Therefore, the interface bonding strength is high, and copper and aluminum are not layered during punching, bending and processing.The copper layer accounts for 20% of the whole section, and the cost performance is the highest.The raw materials used are high-purity cathode copper and high-precision aluminum with a purity of 99.99%.The mechanical properties meet the requirements of dynamic and thermal stability of electrical products;One-time molding, comprehensive coating, corrosion resistance.copper clad aluminum flat bar product specification is complete, can meet all the requirements of electrical equipment, widely used in high and low voltage distribution units, bus slots, high voltage closed bus, transformers, power supply units, control electrical equipment and other electrical equipment industry, is the best alternative to copper platoon products.
Table of physical performance parameters copper clad aluminum flat bar
number | performance index | copper clad aluminum flat bar | Copper flat bar | aluminum flat bar |
1 | Copper layer(%) | 20% | 100% | 0%bbs.fo |
2 |
Copper/aluminum weight ratio (%) |
45:55 | / | / |
3 | density(g/cm3) | 3.94 | 8.89 | 2.7 |
4 | Dc resistivity at 20℃(Ω·mm2/m) | 0.02469 | 0.0177 | 0.0285bbs.f |
5 | Temperature coefficient of resistance 20℃(/℃) | 4.0×10-3 | 3.93×10-3(R) | 4.03×10-3bbs.fobs |
6 | Coefficient of linear expansion at 20℃(/℃) | 2.20×10-5 | 1.7×10-5 | 2.3×10-5bbs.fobshanghai.co |
number | performance index | copper clad aluminum flat bar | Copper flat bar | aluminum flat bar |
1 | Tensile strength | 101(R) 206(R) | 68.6(R) | 118(Y) |
2 | elongation | 11 35(R) | 20(R) | 3(Y) |
3 | hardness | 65(HB,Y) | / | / |
4 | Interfacial shear strength | 35 | / | / |
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