Flat or square wire is made from base copper with rectangular or square shape, it has high advantages compare with round wire, and applied in many field.
1,High space factor. Higher density of conductor makes component smaller or makes component with high efficiency, save material cost.
2,The coil made from flat wire has better cooling efficiency.
3,Flat wire can be wound with different mode.
1, Special design of conductor shape
Special corner design with irregular shape;
Special R angle;
The space ratio of conductor more than 97%;
"the resistance"is 2-3% lower than round wire.
2, Fully automatic rolling process;
Fully automatic multi roller equipment;
Online laser monitor for dimension;
Digital controlled takeup process.
Low fluctuation of dimension.
3, special enamel application technology on corner;
Developed new applying device with our own patent;
Solved the problem of corner enamel application;
The tolerance of the thickness of insulation is less than 0.003mm;
The insulation thickness at thickness side is 1.0-1.3times of it at width side.
4,Established complete product standard and inspection method.
There is no international standard for small and fine rectangular wire. The existing international standard is not apply to small and fine rectangular wire. Based on customers experience in application, Transmo developed enterprise standard for small and fine rectangular wire.
1,High breakdown voltage. Transmo corner enamel application technology ensured the uniform of insulation, avoided weak point at corner. The breakdown voltage can be meet the requirement of customers.
Conductor size (mm) | Thickness of insulation (mm) | Breakdown Voltage (V) | Thickness of insulation (mm) | Breakdown Voltage(V) |
---|---|---|---|---|
0.06×0.60 | 0.015 | 1500 | 0.008 | 800 |
0.10×2.20 | 0.015 | 1700 | 0.008 | 900 |
0.50×2.40 | 0.020 | 2500 | 0.012 | 1500 |
1.0×4.0 | 0.030 | 3000 | 0.014 | 1800 |
2,Thin and uniform insulation
Thickness of conductor: 0.03 - 0.06 mm; width of conductor: 0.2-0.4 mm
Thickness of insulation (single side): 0.002-0.004 mm, thickness of self-bonding layer:(single side): 0.001-0.003mm
Special enamel applying device matches special production process.
Breakdown voltage: ≥200 V, Pin hole: ≤5/m
4,Very good adherence
Special surface treatment;
Advanced quantitative enamel applying technology;
The adherence feature is better than the product of competitors;
No crack with different winding method.
Conductor cross section (mm²) | 0.003~0.03 | 0.03~0.30 | 0.30~3.0 | 3.0~6.0 |
Equivalent size of round wire (mm) | Φ0.06~Φ0.20 | Φ0.20~Φ0.60 | Φ0.60~Φ2.0 | Φ2.0~Φ3.0 |
Thickness (mm) | 0.02~0.06 | 0.06~0.20 | 0.20~0.50 | 0.50~1.20 |
Ratio of T/W | 1:1.2~1:15 | 1:1.2~1:30 | 1:1.2~1:20 | |
Typical size | 0.03×0.2 | 0.08×1.0 | 0.24×2.4 | 1.0×4.0 |
Type of insulation | UEW、AIW、PIW | |||
Thermal class | 180℃、200℃、220℃、240℃ | |||
Self-bonding | Available |
Inductors, transformers, filters, mutual inductors, motors, voice coils, solenoid valves.