gui chao cable news: mechanical properties of aluminum alloy cable-非凡电子娱乐

1, aluminum alloy cable extension

elongation is an important indicator of the mechanical properties of conductors, is an important symbol of product quality and can withstand external force size.

it is also an important index to test the mechanical properties of cable conductors. the elongation rate of annealed aluminum alloy cable can reach 30%,

the copper elongation of 25% ordinary aluminum rod elongation is 15% and is an important index to replace the aluminum core cable with copper.

2, aluminum alloy cable flexibility

torsion test: the main test metal wire toughness, toughness is better, can withstand the number of torsion.

an important disadvantage of ordinary aluminum wire is high brittleness, as long as the installation of a certain number of times a certain angle of torsion, the conductor will crack,

cracks will heat, corrosion, is an important cause of fire. the use of aluminum alloy cable, because of its good toughness,

does not produce cracks in the installation of security risks to reduce.

3, aluminum alloy cable bending performance

bending test: the main test of bending resistance of metal. material uneven or brittle material, bending resistance is poor.

according to the provisions of gb/t12706 copper installation bending radius and bending radius of cable is 10-20 times of the cable diameter,

the minimum bending radius of aluminum alloy cable is 7 times of cable diameter, the use of aluminum alloy cable can reduce the layout space, easier to lay down, reduce installation costs.

4, aluminum alloy cable rebound

practice has proved that: at room temperature under the conditions of copper and aluminum alloy bending 90 degrees, after stress, aluminum alloy rebound angle for 60% copper cable.

the aluminum alloy cable has no memory, so the performance of the rebound is better than that of the copper core cable,

increase the compactness and improve the stability of the connection.