Copper Clad Aluminum Sheet for LED Heat Dissipation
Chalco Aluminum adopts the new high-performance rare earth aluminum alloy and heat-resistant aluminum alloy materials developed by itself, and the hollow seamless tubular conductor is manufactured through special processing techniques such as hot top casting, transverse perforation hot rolling, thermomechanical heat treatment, and cold drawing at the same level.
6Z63 Aluminum heat-resistant tubular bus bar is added with rare earth and rare metal zirconium. In addition to the advantages of conventional tube bus bars, the more important thing is that 6Z63 high-strength heat-resistant aluminum alloy tube bus bars can be used at higher operating temperatures (150°C-200°C) Safe operation, its high temperature (250°C) softening mechanical properties (tensile strength) can maintain more than 88% of normal temperature, reaching more than 200MPa, and the strength coefficient of the heat affected zone after welding can reach more than 80% of normal temperature, which is more suitable It is used in ice melting device projects, large-capacity substation projects, old substation renovation projects and places with high temperature requirements.
Specs:
Implementation standard: GB/T27676-2011 aluminum and aluminum alloy bus tube pipe conductor or ASTM B 317M-07
Alloy: 6Z63
Temper: T6
Surface: The product is hollow tubular structure with glossy surface, beautiful appearance and uniform size.
Outer diameter: from 60mm to 450mm.
Wall thickness: from 3mm to 15mm.
Length: Maximum 15 meters.
Chemical composition and Mechanical properties of 6Z63 Aluminum heat-resistant tubular bus bar
| Alloy |
Chemical component(%) |
| Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
|
Ti |
Ni |
Other |
Al |
| Each |
Total |
|
6Z63
|
0.2-
0.6 |
≤0.35 |
0.1-
0.2 |
≤0.1 |
0.45-
0.9 |
- |
- |
|
- |
- |
≤0.05 |
≤0.15 |
Remain |
| Alloy |
Temper |
Mechanical properties |
| Tensile Strength(Mpa) |
Yield strength
(Mpa) |
Elongation
(%) |
| standard value |
measured value |
standard value |
measured value |
standard value |
measured value |
| 6Z63 |
T6 |
≥220 |
≥240 |
≥190 |
≥205 |
≥8 |
≥9 |
| Property / Alloy |
6Z63 |
Density(g/cm³)
(20ºC) |
2.75 |
| Melting point ºC |
640-668 |
Thermal conductivity,
(K /ºC x cm x s) |
0.51 |
| Electrical Conductivity IACS% |
55 |
| Poisson's Coefficient μ |
0.317 |
20ºC Temperature coefficient of electrical resistance
I/ºC |
0.003 |
20ºC Electrical Resistivity
β,Ω.m/m |
0.032 |
The external diameter allowable deviation and wall thickness allowable deviation of
6Z63 Aluminum heat-resistant tubular bus bar
The external diameter allowable deviation (unit: mm)
| Nominal external diameter |
>50~75 |
>75~120 |
>120~150 |
>150~200 |
>200~250 |
| Normal level ± |
0.23 |
0.30 |
0.40 |
0.60 |
0.80 |
| High Precision level ± |
0.15 |
0. 20 |
0.30 |
0.50 |
0.70 |
Wall thickness allowable deviation (unit: mm)
| Nominal Wall Thickness |
>3.0~4.0 |
>4.0~5.0 |
>5.0~8.0 |
>8.0~10 |
>10~15 |
Average wall thickness and
Nominal Wall Thickness ± |
Normal level |
0.30 |
0.40 |
0.50 |
0.70 |
0.80 |
| High Precision level |
0.15 |
0.15 |
0.20 |
0.30 |
0.40 |
Any wall Thickness and
Nominal Wall Thickness ± |
Normal level |
0.40 |
0.50 |
0.60 |
0.80 |
1.00 |
| High Precision level |
0.20 |
0.20 |
0.30 |
0.40 |
0.50 |
Application of 6Z63 Aluminum heat-resistant tubular bus bar:
6Z63 Aluminum heat-resistant tubular bus bar is mainly suitable for ice melting device engineering and large capacity substation project.
In addition,it is used as overcurrent conductor in power construction projects, such as conductor connection between power grid transmission conductor and transformer substation, jumper in transmission line, connection conductor in power equipment and high current DC ice melting device,It is a new conductor to replace the traditional rectangular, groove, bar-shaped bus and soft conductor.
It is one of the key equipment (materials) in power transmission and transformation system, and plays a vital role in the safe and reliable operation of power transmission and transformation system and power equipment.
Common tubular busbar, Liner tube & sealing ball size or sealing cover size.
| Main Bus Pipe Tube |
Liner Bus Pipe Tube |
Sealing ball or
Sealing cover |
OD
(mm) |
Wall Thickness
(mm) |
OD
(mm) |
Wall Thickness
(mm) |
OD
(mm) |
| 80 |
4 |
71 |
3 |
70 |
| 90 |
5 |
79 |
4 |
79 |
| 100 |
5 |
89 |
5 |
89 |
| 110 |
5 |
99 |
5 |
99 |
| 120 |
5 |
109 |
5 |
109 |
| 130 |
7 |
115 |
7 |
115 |
| 150 |
7 |
135 |
7 |
135 |
| 150 |
10 |
129 |
10 |
129 |
| 170 |
7 |
155 |
7 |
155 |
| 170 |
10 |
149 |
10 |
149 |
| 200 |
10 |
179 |
10 |
179 |
| 250 |
10 |
229 |
10 |
229 |
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