Tianjin Ruiyuan Electric Material Co,.Ltd
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Red Color 0.025mm Super Thin Enameled Copper Winding Wire Magnet Wire Copper For Watch
We are one of the pioneers in producing ultra-fine enameled wires below 0.03mm in China. Our R & D team has 20 years of marketexperience.We have achieved the goal of "zero pinholes after stretching" for ten years. In 2019, our finest diameter is 0.011mm,and mass production has been achieved.When the displays return the transformer industry, we are the No.1 Chinese brand with ashare of cake.We rival the internationally renowned enameled wire brands for production, technology, raw materialsWe surpass them in terms of "service, quick response"; 30% lower "price" is our advantage. More and more well-known customers choose us as suppliers, Bosch, Panasonic, Samsung ...
| Test Items | Requirements | Test Data | Result | |||
| 1st Sample | 2nd Sample | 3rd Sample | ||||
| Appearance | Smooth & Clean | OK | OK | OK | OK | |
| Conductor Diameter | 0.025mm ±0.001mm | 0.025 | 0.025 | 0.025 | OK | |
| Thickness of Insulation | ≥0.003 mm | 0.005 | 0.004 | 0.005 | OK | |
| Overall Diameter | ≤ 0.032 mm | 0.03 | 0.029 | 0.03 | OK | |
| DC Resistance | ≤ 38.112 Ω/m | 35.523 | 35.489 | 35.506 | OK | |
| Elongation | ≥ 9 % | 15 | 13 | 14 | OK | |
| Breakdown Voltage | ≥190V | 551 | 399 | 475 | OK | |
| Pin Hole | ≤ 8 faults/5m | 0 | 1 | 0 | OK | |
| Adherence | No cracks visible | OK | OK | OK | OK | |
| Cut-through | 200℃ 2min No breakdown | OK | OK | OK | OK | |
| Heat Shock | 175±5℃/30min No cracks | OK | OK | OK | OK | |
| Solderability | 390± 5℃ 2 Sec No slags | OK | OK | OK | OK | |
| Insulation Continuity | / | 0 | 0 | 0 | OK | |