Tungsten wire
comes out through the process of heating, forging of tungsten rod, and then straightened for several times.Tungsten wire applications:
Tungsten wire is universally used to make
tungsten wire resistance
for bulb, lamps. Besides, it can be used in making optical instrument, electric vacuum components, high temperature resistant parts.Properties of tungsten wire:
Tungsten wire is characterized by highest melting point, excellent electric conductivity. It has high performance in sintering and high temperature in recrystallization. For the above features, it can serve a long life in any applications.
WRe wire can be used in electron tube, cathode ray tube filament, electron gun filament, thermocouple, electron tube parts.
WTh wire can be applied in magnetic coil, HID electrode, tungsten wire used in microwave oven.
Tungsten wire dimensional tolerances lengths:
| dia(um) | min.length | ||||||
| weight(mg/200mm) | dia | ||||||
| class0 | classI | classII | classI | classII | |||
| 10<d<=18 | >0.30-0.98 | -- | ±3 | ±4 | -- | -- | |
| 18<d<=40 | >0.98-4.85 | ±2 | ±2.5 | ±3 | -- | -- | 400 |
| 40<d<=80 | >4.85-19.39 | ±1.5 | ±2.0 | ±2.5 | -- | -- | |
| 80<d<=150 | >19.39-68.18 | ±1.0 | ±1.5 | ±2.0 | -- | -- | 300 |
| 150<d<=300 | >68.18-272.71 | ±1.0 | ±1.5 | ±2.0 | -- | -- | 100 |
| 300<d<=350 | >272.71-371.19 | -- | ±1.0 | ±1.5 | -- | -- | 50 |
| 350<d<=500 | -- | ±1.5 | ±2.0 | * | |||
| 500<d<=1800 | -- | ±1.0 | ±1.5 | ||||
