This ppt will introduce some details about magnet wire. i hope it is useful for you.

1. Magnet Wire
----Zhengzhou LP Industry Co., LTD
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2. Variform magnet wire
 Round wire
 Rectangular wire
 Square wire

3. Conductor material
 Aluminum
 Copper
 Aluminum alloys
 Copper clad aluminum CCA
 Copper clad magaluma CCAM

4. Application
 Normal
 Solderable
 Self-bondable

5. Standard
 W25E, W26E, W33E, W46E
 W41D, W42D, W43D, W76D, W82D,
 W92D
 TP-5, TP-7, TP-9, TP-10, TP-14, TP-101,
 TP-135, TP-273…
 PS 17-1
 IEC 60317
 GB 6109
 GB 4074
 MW 1000

6. General
 Surface condition
 – Color, class, insulation, build
 Wire lubricant
 – Dry lubricant, not oil

7. IQC control characteristic
 Bare diameter
 Overall diameter
 Continuity
 Spring back
 Coefficient of friction

8. Dimension property
 Dimension property
 Bare diameter
 Overall diameter
 Basecoat
 Topcoat
 Enamel
 Min. increase
 Eccentricity

9. Dimension property
Min. increase d (Heavy build, mil)
Lgd = o.819-AWG/44.8
Bare diameter D (in)
D=(O.0050)×(1.1229322)(36-AWG)

10. Mechanical property
 Spring back
 Elongation
 Tensile strength
 Peeling twist
 Flexibility
 Friction
 Single scrape
 Sudden jerk
 Repeat scrape

11. Thermal property
 Heat shock
 Thermal cut through
 TGA
 Solderability
 Bondability

12. Chemical property
 Solubility
 Hi pot test
 Pin hole test
 XRF check
 FTIR
 R-22 extraction
 Transformer oil

13. Dielectric property
 Resistance
– Copper: Max. ρ= 0.017241 Ω·mm²/m
– Aluminum: Max. ρ=0.027898 Ω·mm²/m
 Continuity
 Dielectric strength
 Breakdown at high temperature
 Creepage test
 Rain test

14. Coating problem

15. Rain test (copper wire)

16. Rain test (aluminum wire)

17. THANK YOU