- Model NO.: IRTC
- Trademark: DL
- Origin: Nanjing City in China
- Certification: ISO 9001: 2008
- Specification: ISO 9001: 2008
- HS Code: 8539490000
For practical purposes, most infrared heaters are constructed by either using the emission of a flame (usually soot or a heated matrix) or an electrically heated filament as the emitting body. If an electrically operated infrared heater (infrared lamp) is used, the filament is usually protected by a heat-resistant quartz glass tube. Depending on the filament temperature, a filling of the quartz tube with inert gas (e. G., halogen) may be required to prevent filament degradation. These emitters use the same materials and principle as a light bulb.
The most common filament material used for electrical infrared heaters is tungsten wire, which is coiled to provide more surface area. Low temperature alternatives for tungsten are carbon, or alloys of iron, chromium and aluminum (brand name 'kanthal'). While carbon filaments are more fickle to produce, they heat up much quicker than a comparable medium-wave heater based on a FeCrAl filament.
Industrial infrared heaters sometimes use a gold coating on the quartz tube that reflects the infrared radiation and directs it towards the product to be heated. Consequently the infrared radiation impinging on the product is virtually doubled. Gold is used because of its oxidation resistance and very high IR reflectivity of approximately 95 %
2. Efficiency of infrared heaters:
For practical applications, the efficiency of the infrared heater depends on matching the emitted wavelength and the absorption spectrum of the material to be heated.
For example, the absorption spectrum for water has its peak at around 3000 nm. This means that emission from medium-wave or carbon infrared heaters are much better absorbed by water and water-based coatings than NIR or short-wave infrared radiation.
The same is true for many plastics like PVC or polyethylene. Their peak absorption is around 3500 nm. On the other hand, some metals absorb only in the short-wave range and show a strong reflectivity in the medium and far infrared. This makes a careful selection of the right infrared heater type important for energy efficiency in the heating process.
Ceramic elements operate in the temperature of 300° C to 700° C (572° F - 1292° F) producing infrared wavelengths in the 2 - 10 micron range. Most plastics and many other materials absorb infrared best in this range, which makes the ceramic heater most suited for this task.
3. DESCRIPTION OF TWIN TUBE INFRARED HEATING LAMP:
Finish: No reflector
Heated length: 455mm
Unheated length: 90mm+55mm
Ceramic cap: F1 type
Connection: One side
To order you must inform us the following features:
- Diameter of the heating emitter
- Length of the heating emitter
- Termination type how you want the heater to be connected with the electricity (screws, cable, cap etc. )
- Special Features (holes etc. )
It would be better for our understand If you could send us a drawing with all the characteristics noted.
|Format||Total length( mm)||Heated length( mm)||Voltage(V)||Watts(W)||Diameter (mm)|
|One side connection||185 - 1085||100 - 1000||110/115/120||100 - 1500||23x11/33x15|
|385 - 1585||300 - 1500||220/230/235/240||800 - 3000|
|785 - 2085||700 - 2000||380/400/415/480||1500 - 6000|
|Two side connection||185 - 1085||100 - 1000||110/115/120||200 - 3000||23x11/33x15|
|385 - 1585||300 - 1500||220/230/235/240||800 - 12000|
|785 - 2085||700 - 2000||380/400/415/480||1000 - 12000|