Overview
| brand | Sailing Wire | model | JL3/LB20A |
| Packaging/Specifications | packing | ||
| Minimum packaging quantity | Product name | Aluminum clad steel core aluminum stranded wire | |
| Cable outer diameter | 21.6mm | Steel ratio | 13% |
| Theoretical weight | 883.6kg/km | Rated tensile force | 77.09kn |
| Cross-sectional area | 276mm2 | Standard cross-section | 240/30 |
| DC resistance | 0.1105 Ω/km | Wire structure | 24/3.6+7/2.4n/mm |
| Weighting method | Tons, meters | Sellable region | nationwide |
| Shipping method | Logistics or special vehicle delivery | quantity | one million |
| encapsulation | Iron wood shaft | Batch number | twenty-three thousand six hundred and twenty-three |
Product Details
Aluminum clad steel wire is a bimetallic wire that is evenly, continuously, and tightly wrapped with a layer of aluminum outside a round steel wire. Aluminum has relatively low strength but is relatively light, with a density of approximately copper
1/3 of aluminum has a relatively high conductivity, second only to silver and copper, ranking third. Aluminum has better corrosion resistance: steel has higher strength, but its conductivity and corrosion resistance are better than
Lower. Therefore, aluminum clad steel wire is a product of the strong combination and strong and weak complementarity of aluminum and steel. It has the following characteristics:
(1) The size and performance of aluminum clad steel wire can be adjusted over a wide range.
(2) Steel and aluminum belong to metallurgical bonding, so the bonding strength is good, which is conducive to the strength advantage of aluminum clad steel wire.
(3) Compared to galvanized steel wire, it has better heat resistance because the melting point of aluminum is higher than that of zinc, and the melting point of steel is even higher.
(4) Baotou steel wire has good corrosion resistance. If aluminum clad steel wire is twisted together with aluminum wire or aluminum alloy wire and applied on overhead transmission lines, there is no electrochemical corrosion
The issue of. But there is this question with galvanized steel wire. Therefore, anti-corrosion isolation protection is used.
(5) The cross-section of a wire can be made into complex shapes. For example, aluminum clad steel contact wire (trolley wire) for Railway electrification. Its shape is in an "8" shape, and its manufacturing process
One method is to use the "Conform" continuous extrusion method to form a single extrusion.
(6) Aluminum plated steel wire, like galvanized steel wire, is manufactured using the pre hot dip method and is a reinforcing material, not a conductive material. Aluminized steel wire due to the higher temperature of hot-dip galvanizing compared to galvanized steel wire
High, so the strength is lower than that of zinc plated steel wire, and the plating process requires high requirements, which is prone to causing discontinuous "pinhole" defects. This actually accelerates corrosion. 1960s
In the future, relevant units in China have carried out some work on the development of aluminum plated steel wires. But in fact, industrial production has not been achieved, which has not been promoted and applied in China.
In addition, aluminum coated steel wires have faced strong competition from aluminum clad steel wires during the same period, and the linear energy advantage of aluminum clad steel wires is obvious. Looking forward to the future, aluminum coated steel wires will be applied at least in transmission lines
There won't be any improvement.