Although both copper and aluminum have good conductivity and thermal conductivity, they are the basic materials for power transmission and heat transfer engineering, but copper resources are increasingly scarce, so replacing copper with aluminum has become an inevitable trend.
Compared with copper, aluminum has poor weldability and high surface contact resistance, so it is difficult for many parts to replace copper with aluminum directly.
Aluminum-copper composite prepared by directly compounding a layer of copper on the surface of aluminum can improve the contact resistance of aluminum surface, improve the welding performance of aluminum and the corrosion resistance of copper-aluminum contact.
Specifications for Copper clad aluminum rod busbar:
1. width: 30-200mm
2. thickness: 3-12mm
3. copper aluminum ratio: copper20%, aluminum80%
4. adopt the standard: DL/T247-2012
5. copper aluminum grade: T2 copper copper content is more than 99.95%.
1070 aluminum - aluminum content greater than 99.85%
6. state: annealing state & hard state
Note: Copper clad aluminum rod busbar can be manufactured according to user's width and thickness.
The advantages of Copper clad aluminum rod busbar are:
1. Good electrical conductivity: Copper-aluminum volume ratio of 15% copper-clad aluminum plating performance, compared with copper bars, its AC current carrying capacity is 85% of pure copper.
2. Light weight: the density of copper clad aluminum bars is only 37% - 40% of pure copper bars, the length (volume) of the same weight is 2.5-2.7 times of pure copper bars.
3. Good mechanical properties: good tensile strength, flexibility and elongation.
4. Firm bonding between copper and aluminum: two different metal materials achieve permanent atomic intergranular bonding at various ambient temperatures, and the copper layer (tin, zinc layer) is evenly distributed without any physical defects.
5. Good ductility and reliability: After a special heat treatment process, it has certain plasticity, which is conducive to punching, shearing, bending products without cracking, not separating. In order to improve corrosion resistance, tin plating and zinc plating can be applied on the surface of copper layer.
6. Optimum Selection: Save copper, greatly reduce the cost of supporting production, green environmental protection, no pollution.
Application area:
1. Copper clad aluminum rods are used in connection posts of high-voltage distribution stations; Copper clad aluminum busbar is used in chemical industry instead of copper busbar for saving.
2. Copper clad aluminum busbars are often used as important components in heat exchanger manufacturing, power transmission and electrical equipment. For example, switchgear, control cabinet, transformer, safety switch, vacuum switch, relay system, motor control, track power supply system, electrode correction coil, reactor and other windings, railway traction equipment, high and low voltage distribution cabinet, generator set and substation, all kinds of copper-aluminum transition connectors, high and low voltage distribution point cabinet conductive row, High and low voltage bus bar, bus bar, touch slide line and so on.
3. Copper clad aluminum busbars are often used in the conductive industry for the transition connection between copper and aluminum, such as motor, Transformer Outlet contact plate and power fittings, power plant and substation copper bus and aluminum bus transition connection.
Compared with copper, aluminum has poor weldability and high surface contact resistance, so it is difficult for many parts to replace copper with aluminum directly.
Aluminum-copper composite prepared by directly compounding a layer of copper on the surface of aluminum can improve the contact resistance of aluminum surface, improve the welding performance of aluminum and the corrosion resistance of copper-aluminum contact.
Specifications for Copper clad aluminum rod busbar:
1. width: 30-200mm
2. thickness: 3-12mm
3. copper aluminum ratio: copper20%, aluminum80%
4. adopt the standard: DL/T247-2012
5. copper aluminum grade: T2 copper copper content is more than 99.95%.
1070 aluminum - aluminum content greater than 99.85%
6. state: annealing state & hard state
| Copper clad aluminum rod busbar | Parameter |
| Copper aluminum ratio | 20：80 |
| Proportion | 45：55 |
| Density（g/cm3） | 3.94 |
| DC electric resistance（Ω.mm2/m） | ≤0.02488 |
| Tensile strength（MPa） | ≥110 |
| Elongation（%）） | ≥7 |
| Bonding strength（MPa） | >40 |
Note: Copper clad aluminum rod busbar can be manufactured according to user's width and thickness.
The advantages of Copper clad aluminum rod busbar are:
1. Good electrical conductivity: Copper-aluminum volume ratio of 15% copper-clad aluminum plating performance, compared with copper bars, its AC current carrying capacity is 85% of pure copper.
2. Light weight: the density of copper clad aluminum bars is only 37% - 40% of pure copper bars, the length (volume) of the same weight is 2.5-2.7 times of pure copper bars.
3. Good mechanical properties: good tensile strength, flexibility and elongation.
4. Firm bonding between copper and aluminum: two different metal materials achieve permanent atomic intergranular bonding at various ambient temperatures, and the copper layer (tin, zinc layer) is evenly distributed without any physical defects.
5. Good ductility and reliability: After a special heat treatment process, it has certain plasticity, which is conducive to punching, shearing, bending products without cracking, not separating. In order to improve corrosion resistance, tin plating and zinc plating can be applied on the surface of copper layer.
6. Optimum Selection: Save copper, greatly reduce the cost of supporting production, green environmental protection, no pollution.
Application area:
1. Copper clad aluminum rods are used in connection posts of high-voltage distribution stations; Copper clad aluminum busbar is used in chemical industry instead of copper busbar for saving.
2. Copper clad aluminum busbars are often used as important components in heat exchanger manufacturing, power transmission and electrical equipment. For example, switchgear, control cabinet, transformer, safety switch, vacuum switch, relay system, motor control, track power supply system, electrode correction coil, reactor and other windings, railway traction equipment, high and low voltage distribution cabinet, generator set and substation, all kinds of copper-aluminum transition connectors, high and low voltage distribution point cabinet conductive row, High and low voltage bus bar, bus bar, touch slide line and so on.
3. Copper clad aluminum busbars are often used in the conductive industry for the transition connection between copper and aluminum, such as motor, Transformer Outlet contact plate and power fittings, power plant and substation copper bus and aluminum bus transition connection.
