●Product introduction: This product is made of oxygen-free copper rod or electric round aluminum rod after being extruded or drawn by a certain size of the mold, and then 2-3 layers of polyimide film are evenly wrapped on the copper-aluminum conductor. As the winding wire of the insulation layer, the product has excellent withstand voltage performance and thin insulation thickness, heat resistance up to 220 ° C, mainly used for winding of motor, reactor, electric welder or other similar electrical products. The bare copper (aluminum) wire produced by the extrusion process is the most ideal material for producing polyimide film covered wires.
●Executive standards: GB/T7673-2008 and corporate standards
●Transparent polyester film covered aluminum wire
1.class220 top quality
3.Film thickness:according to custormers' requirements
4.Film overlap:according to custormers' requirements
6.over 25 years experience
7.Test result:No Cracking
8.Nomex covered wire,polyester covered wire and polyimide covered wire.
Aluminum flat wire
Narrow edge size a: 1.00mm—8.00mm
Wide side size b: 3.00mm - 25.00mm
Copper flat wire
Narrow edge size a: 0.90mm - 5.60mm
Wide side size b: 2.00mm - 16.00mm
Copper and aluminum round wire
Nominal diameter of conductor: φ1.7—φ6.0
If the selection specification is beyond the above range, please contact us.
The resistivity of aluminum wire at 20 ° C is not more than 0.028010 Ωmm2 / m
The resistivity of copper wire at 20 ° C is not more than 0.017241 Ωmm2 / m
After the polyimide film line is subjected to wide-side bending and narrow-side bending on the round bars specified in the following table, the wrapping layer should be free from cracking to the bare conductor.
Round rod diameter
Puncture voltage of polyimide film wrapped copper (aluminum) wire (company standard)
Breakdown voltage is not less than
Two-layer polyimide self-locking package
Two layers of polyimide in the opposite direction
Three layers of polyimide in the opposite direction