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JIS H4461 Tungsten Filament For The Gas Discharge Electrode High Pressure Mercury Lamp Tungsten Wire
1. Information Of Tungsten Filament For Gas Discharge Electrode Lamp Tungsten Wire:
The tungsten wire is used in series with the quartz lamp tube in the mercury lamp. Mercury lamps are electric light sources that produce visible light by generating mercury vapor when mercury is discharged.
When the tungsten wire is applied to the high-pressure mercury lamp, the inner wall of the glass shell is not coated with fluorescent powder, but a tungsten wire is connected in series between the shell and the quartz lamp tube, which not only acts as a ballast, but also radiates what the high-pressure mercury lamp lacks. Red light to improve light color.
2. Physical Parameters Of Tungsten Filament For Gas Discharge Electrode Lamp Tungsten Wire:
| Item | Diameter(mm) | Tensile strength (N/mm2) | Tensile Strength after Heating (N/mm2) |
| Purity 99.95% | <0.025 | (3.0~4.5)*103 | (1.7~3.6)*103 |
| 0.025~0.05 | (2.4~4.0)*103 | (1.5~3.4)*103 | |
| 0.05~0.07 | (2.3~3.8)*103 | (1.1~3.0)*103 | |
| 0.07~0.13 | (2.1~3.6)*103 | (1.1~3.0)*103 | |
| 0.13~0.18 | (1.9~3.4)*103 | (1.1~3.0)*103 | |
| 0.18~0.26 | (1.9~3.4)*103 | -- |
3. Diameter Tolerance Of Tungsten Filament For Gas Discharge Electrode Lamp Tungsten Wire:
| Diameter (mm) | Tolerance (%) | |
| 99.95% tungsten wire | <0.013 | ±2 |
| 0.013~0.018 | ±1.5 | |
| >0.018 | ±1 |
4. Precautions Of Tungsten Filament For Gas Discharge Electrode Lamp Tungsten Wire:
Storage method: Sealed and stored in a cool place, avoid direct sunlight.
1). Transformers and capacitors of corresponding specifications must be equipped when using;
2). Before use, the surface of the lamp tube must be wiped clean
with absolute ethanol, and it is strictly forbidden to touch it
directly with hands;
3). The lamp is discharged by high-pressure mercury vapor to
produce strong long-wave violet radiation (the main wavelength is
365 nanometers);
4). Strong ultraviolet rays can burn eyes and skin, so avoid direct
light exposure during use;
5). The lamp tube is accidentally damaged, causing mercury vapor to
be emitted. The personnel on site must leave immediately and let
the site continue to ventilate for 20-30 minutes to prevent mercury
vapor from being inhaled into the body and cause poisoning; clean
up the site in time when it is safe, and the recovered mercury raw
materials can be Reserved for experimentation.
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