Copper-Clad Aluminum (CCA) Wire
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strong wear resistance, long life
The grinding ratio of CBN wheel can reach 3500-5500, which is 100 times higher than that of ordinary corundum wheel and 3-5 times higher than that of diamond wheel.
environmental protection, no pollution, energy saving and consumption reduction
No too much powder dust.
High work efficiency and good comprehensive economic benefits
The grinding is sharp, the grinding force is small, the dressing cycle of CBN wheel is long, the dressing amount is less, and the replacement time is long. Long service cycle, high grinding ratio, can obtain better economy, good shape retention in use, do not need to change and trim grinding wheel often, save working hours, improve working conditions, is conducive to machining operation.
Cubic boron nitride is not suitable for grinding hard metals and non-metallic materials. At high grinding temperature, CBN will react with alkaline aqueous solution. CBN grinding wheel will decompose in alkaline solution at 300℃, and can decompose in trace amount in boiling water, which will destroy the crystal shape of grinding grains. Therefore, oily coolant should be used instead of water-based coolant during grinding.
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The Copper-Clad Aluminum (CCA) Wire produced by Henan Chalco is different from the traditional hydrostatic extrusion, rolling and splicing, cladding welding and sleeve rolling. The original "horizontal continuous casting and high efficiency forming-rolling" technology is adopted to achieve a certain metallurgical bonding between the copper clad aluminium wire and the aluminium clad wire and to strengthen the two metals. The interface shear strength ensures the mechanical and electrical properties of the product, and improves the stability of the product.
Copper-clad aluminum (CCA) is composed of aluminum core wire and outer copper layer which is tightly clad. It has the advantages of good conductivity of copper and light weight of aluminum. It is the preferred material for inner conductor of coaxial cable and cable in electrical equipment. The same process cable can be used for pure copper wire.
Production standard:
1.SJ/T112233-2000 "Copper-Clad Aluminum (CCA) Wire ", American ASTMB566-93 "Copper-Clad Aluminum (CCA) Wire ".
2. Copper-Clad Aluminum (CCA) Wire can be divided into soft (A) and hard (H) according to mechanical properties, and it can be divided into 10% and 15% according to the volume ratio of copper layer.
A.Copper-Clad Aluminum (CCA)Â Â flat wire
1.Reference table for allowable deviation of straight line dimension
Diagonal dimension/mm
Permissible deviation
Advanced level
General level
0.5~1.0
0.01
0.02
>1.0~3.0
0.015
0.03
>3.0~6.0
0.02
0.03
>6.0~10.0
0.03
0.05
>10.0~15.0
0.07
0.1
2.Reference table for physical properties of flat wire at room temperature
Volume ratio of cladding layer/%
Subtense distance/mm
Temper
Density(g/cm3)
Tensile strength/MPa
Elongation/%
Maximum dc resistivity
(Ω·mm2/m)
Volume conductivity is not less than
(%IACS)
20
0.5~15
Hard
3.94
≥160
≥1.0
0.02596
66.4
Â
0.5~15
Soft
Â
≥110
≥12
0.0255
67.6
25
0.5~15
Hard
4.25
≥170
≥1.5
0.02548
67.7
Â
0.5~15
Soft
Â
≥115
≥13
0.02498
69
30
0.5~15
Hard
4.56
≥180
≥2
0.02477
69.6
Â
0.5~15
Soft
Â
≥120
≥14
0.02424
71.1
Width of flat wire/mm
Coil weight of flat wire /kg
Standard coil
Lighter coil
0.5~1.0
10±1
8±1
>1.0~3.0
22±2
20±2
>3.0~5.0
25±3,40±4
22±3,30±3
>5.0
70±5
50±5
Diameter/mm
Optimize diameter size
/mm
Acceptable tolerance
>1.0~8.25
2,3,4,5,6,7,8
±1%d
1.Reference sheet for tensile strength and elongation at break of CCA round wire
Â
Standard diameter/mm
Tensile strength/MPa
Elongation/%
Hard Y
Soft R
Hard Y
Soft R
min
max
min
max
1.00~2.05
207
138
1
15
2.06~2.30
200
138
1
15
2.31~2.59
193
138
1
15
2.60~2.91
186
138
1
15
2.92~3.26
179
138
1
15
3.27~3.67
172
138
1.5
15
3.68~4.12
166
138
1.5
15
4.13~4.62
159
138
1.5
15
4.63~5.19
152
138
1.5
15
5.20~5.83
138
138
1.5
15
5.84~6.54
124
138
1.5
15
6.55~8.25
110
138
1.5
15
2.Reference table for maximum DC resistivity and volume conductivity of CCA round wire
Cladding volume ratio
/%
Temper
Density(g/cm3)
Maximum DC resistivity(Ω·mm2/m)
Volume conductivity is not less than(%IACS)
20
Hard
3.94
0.02596
66.4
Â
Soft
Â
0.0255
67.6
25
Hard
4.25
0.02548
67.7
Â
Soft
Â
0.02498
69
30
Hard
4.56
0.02477
69.6
Â
Soft
Â
0.02424
71.1
Product performance:
1. Unique composite properties, Copper-aluminum interface for metallurgical bonding, high performance products, with copper conductivity and aluminum density characteristics of small;
2. High interfacial bonding strength, excellent electrical conductivity and excellent mechanical properties.
3. The thickness of copper layer is large and adjustable, which is suitable for transmitting large current.
4. Lightweight, easy to transport and install.
5. Obvious economic benefits: saving copper resources and reducing production costs.
The density of Copper-Clad Aluminum (CCA) Wire is only 37-40% of that of pure copper wire, and its length is 2.45-2.65 times of that of pure copper wire with the same mass and diameter, and its tensile strength is 1.6-2 times higher than that of pure copper wire. Therefore, using wire length or strength to produce wire and cable will greatly reduce the production cost.
Application of Copper-Clad Aluminum (CCA) Wire :
1. Electrical equipment manufacturing: mainly including low-voltage, medium-voltage, high-voltage distribution, bus system, rectifier, motor winding, etc.
2. Bimetal connectors in crane track supply system, vacuum switchgear, generator set, substation, aluminum foil winding transformer, etc.
3. wind power, solar photovoltaic field: mainly including reactors, inverters and so on;
4. railways, aerospace, high-speed ferry and so on.
5. high frequency signal transmission
6. preferred conductor material for cable TV coaxial cable
7.50 RF cable, flexible RF coaxial cable inner conductor material
8. leakage conductor inner conductor material
9. computer power and other data cable inner conductor materials
10. internal conductor material for micro coaxial cable
11. power transmission
12. stranded wire
13. conductor materials for power cables
14. control cable inner conductor
15. special conductors for automobiles and locomotives
16. building materials without wires and conductors
17. conductor material such as busbar.
18. fuse
19. RF shielding network.
Â
Copper-Clad Aluminum (CCA) WireÂ
The Copper-Clad Aluminum (CCA) Wire produced by Henan Chalco is different from the traditional hydrostatic extrusion, rolling and splicing, cladding welding and sleeve rolling. The original "horizontal continuous casting and high efficiency forming-rolling" technology is adopted to achieve a certain metallurgical bonding between the copper clad aluminium wire and the aluminium clad wire and to strengthen the two metals. The interface shear strength ensures the mechanical and electrical properties of the product, and improves the stability of the product.
Copper-clad aluminum (CCA) is composed of aluminum core wire and outer copper layer which is tightly clad. It has the advantages of good conductivity of copper and light weight of aluminum. It is the preferred material for inner conductor of coaxial cable and cable in electrical equipment. The same process cable can be used for pure copper wire.
Production standard:
1.SJ/T112233-2000 "Copper-Clad Aluminum (CCA) Wire ", American ASTMB566-93 "Copper-Clad Aluminum (CCA) Wire ".
2. Copper-Clad Aluminum (CCA) Wire can be divided into soft (A) and hard (H) according to mechanical properties, and it can be divided into 10% and 15% according to the volume ratio of copper layer.
A.Copper-Clad Aluminum (CCA)Â Â flat wire
1.Reference table for allowable deviation of straight line dimension
Diagonal dimension/mm
Permissible deviation
Advanced level
General level
0.5~1.0
0.01
0.02
>1.0~3.0
0.015
0.03
>3.0~6.0
0.02
0.03
>6.0~10.0
0.03
0.05
>10.0~15.0
0.07
0.1
2.Reference table for physical properties of flat wire at room temperature
Volume ratio of cladding layer/%
Subtense distance/mm
Temper
Density(g/cm3)
Tensile strength/MPa
Elongation/%
Maximum dc resistivity
(Ω·mm2/m)
Volume conductivity is not less than
(%IACS)
20
0.5~15
Hard
3.94
≥160
≥1.0
0.02596
66.4
Â
0.5~15
Soft
Â
≥110
≥12
0.0255
67.6
25
0.5~15
Hard
4.25
≥170
≥1.5
0.02548
67.7
Â
0.5~15
Soft
Â
≥115
≥13
0.02498
69
30
0.5~15
Hard
4.56
≥180
≥2
0.02477
69.6
Â
0.5~15
Soft
Â
≥120
≥14
0.02424
71.1
Width of flat wire/mm
Coil weight of flat wire /kg
Standard coil
Lighter coil
0.5~1.0
10±1
8±1
>1.0~3.0
22±2
20±2
>3.0~5.0
25±3,40±4
CBN Cutting Discs