1、 Historical development of aluminum alloy
The development of aluminum alloy can be traced back to 200 years ago. Alumina was reduced to aluminum by electrolysis. In 1884, aluminum was used in Washington Monument in the United States, which is still well preserved. Since then, aluminum alloy materials synthesized by various metal elements have been widely used in all aspects of construction.
However, there are two kinds of high-quality aluminum alloy materials, 1060 and 6063, whose product performance is far higher than that of ordinary aluminum alloy bridge, and has good corrosion resistance, wind resistance, anti-interference and other properties.
1. 1060 Aluminum Alloy
1060 Aluminum alloy contains more aluminum in all aluminum alloy materials, the purity of aluminum can reach more than 99.60% (China's aluminum alloy technical standard (GB / t3880-2006) also clearly stipulates that the aluminum content of 1060 series aluminum plate must reach more than 99.6%) 1060 requires high corrosion resistance and formability, but low strength requirements. Chemical equipment is a typical application.
2. 6063 aluminum alloy
And 6063 aluminum alloy material came out in 1943. 6063 aluminum alloy marks a new era of high strength aluminum alloy. It has wind pressure resistance, assembly performance, corrosion resistance and decoration performance, and its comprehensive standard is far higher than the industrial profile standard. 6063 aluminum alloy bridge is a very high quality bridge series.
2、 Classification of aluminum alloy bridge
1. Aluminum alloy cable rack
Aluminum alloy cable rack is a kind of equipment specially used for computer room wiring. At present, China's communication industry is widely used. Most of China Mobile, China Unicom and China Telecom have purchased such cable trays. In fact, the cable rack is also called cable tray. Since there is no specific classification standard in the cable tray industry, the cable rack can also include cable tray, ladder type, grid type, trough type, tray, etc. The wide application of aluminum alloy cable rack makes the wiring in computer room more standardized, standardized and modernized. Because the aluminum cable rack has the following characteristics:
(1) Aluminum alloy cable rack width adjustable, single layer, double layer, multi-layer, vertical line, horizontal line, any combination.
(2) The average bearing capacity of aluminum alloy cable rack is more than 300kg per meter.
(3) The interval of the aluminum alloy wire rack is adjustable, generally 250mm-400mm, and the hanging interval is 1.5m-2m.
(4) Aluminum alloy cable rack is assembled on site with special parts, which is convenient for transportation.
(5) The aluminum alloy cable rack can be installed on the ceiling, ground support, along the wall, or as a ladder.
2. Aluminum alloy trough type bridge
Aluminum alloy trough type cable tray is a trough type cable tray made of aluminum alloy material. Generally, it is a closed cable tray. It is suitable for laying computer cable, communication cable, thermocouple cable and control cable of other high sensitive system. It has good effect on shielding interference of control cable and protection of cable in heavy corrosion environment.
3. Aluminum alloy ladder type bridge
Aluminum alloy ladder type cable tray is the ladder type cable tray produced by aluminum alloy material. Ladder type bridge is also called ladder type cable bridge. Because its shape is similar to the ladder, so named. The ladder type cable tray has the advantages of light weight, good heat dissipation and good air permeability. Moreover, due to the reinforcement of the cross bar in the middle of the middleware bridge, its bearing capacity is very excellent. Generally speaking, aluminum alloy ladder type cable tray is suitable for large diameter cable wiring.
4. Aluminum alloy tray type bridge
Aluminum alloy tray type cable tray is a tray type cable tray with aluminum alloy material as the original material. It has the characteristics of aluminum alloy and tray type, high strength, low cost, beautiful appearance, convenient installation and good air permeability. It is suitable for laying cables with large diameter, especially for laying high and low voltage cables with large load. Tray type cable tray is widely used in petroleum, chemical, electric power, light industry, television, telecommunications and other aspects. It is not only suitable for the installation of power cables, but also suitable for the laying of control cables.
5. Aluminum alloy raceway
Raceway is also known as raceway, wiring trough, and raceway. The raceway is not a bridge. The larger difference between aluminum alloy raceway and bridge is that the wire is laid in the raceway, power line, data line, etc., and the cable is arranged in the bridge. Aluminum alloy raceway has the characteristics of good strength and corrosion resistance.