1. Precise construction
Quartz tube base material: It is made by melting natural quartz sand with a purity of 99.9%, with a tube wall thickness of 2.5-3mm. After being treated by the "low-temperature annealing" process, the coefficient of thermal expansion is as low as 5.5×10⁻⁷/℃, and it can withstand sudden temperature changes from -20 ℃ to 600℃. The light transmittance is optimized to 93% for medium waves of 3-7μm.
Heating element design:The "fine-diameter tungsten wire + helical dense-tightening" structure is adopted. The diameter of the heating zone in the middle section is 0.12mm (pitch 0.6mm), and the lead wire zones at both ends are thickened to 0.3mm. Combined with the "hydrogen bromide - argon gas" mixed gas in the tube (ratio 1:12), a stable tungsten-halogen cycle is formed at the working temperature of 300-600℃. Reduce the evaporation loss of tungsten filament.
Packaging process: Both ends adopt high-temperature resistant ceramic bases (with a temperature resistance of 800℃), the electrode pins are treated with a nickel coating (5μm thick), and the anti-oxidation performance is enhanced by 40%. The connection terminals are equipped with silicone sealing rings (with a temperature resistance of 200℃), and the protection grade reaches IP54.
2. Principle of medium-wave wavelength regulation
By adjusting the working temperature of the tungsten filament (300-700℃) and the doping composition of the quartz tube (adding 0.2% cerium oxide), the main peak of infrared radiation is precisely fixed at 3-7μm: when the temperature is below 400℃, the proportion of the 5-7μm band increases to 60%, which is suitable for low-temperature drying. When the temperature exceeds 500℃, the proportion of the 3-5μm band increases to 55%, meeting the demand for rapid heating and achieving "one tube adapted to multiple scenarios".
Performance Comparison: Why Choose Medium Wave
| Indicator | Medium-wave quartz heating tube | Short-wave halogen tube |
| Wavelength range | 4-8μm | 2-4μm |
| Heating time (up to 200℃) | 5-8 s | 1-3 s |
| Surface temperature difference | ±5℃ | ±8℃ |
| Penetration depth | 1-2mm | 3-5mm |
| Suitable material | Textiles, food | Metal, plastic |
The actual measurement data of a certain textile factory shows that the fabric shrinkage rate of the setting machine using medium-wave quartz heating tubes has decreased from 3% to 1.5%, and its energy consumption is 18% lower than that of far-infrared tubes, verifying its advantages in the processing of sensitive materials.
Customization options
Customizable "anti-corrosion version" : The tube body is made of high-purity synthetic quartz (hydroxyl content ≤5ppm), and it can be used continuously for 1000 hours without fogging in an environment with 95% humidity.
Support for "irregular bending" : Minimum bending radius of 100mm, can be processed into U and W shapes, suitable for complex Spaces inside the equipment.
Installation of reflector: Equipped with anodized aluminum reflector plate (reflectivity 85%), the directional heating efficiency is increased by 30%, suitable for single-side heating scenarios on assembly lines.
With 20 years experience, Hongtai Alloy is your trusted source for quality infrared halogen heater lamp as one of the leading suppliers of various heaters in China. Providing you with the most competitive price, we welcome you to buy the heater from our factory.
Hot Tags: infrared halogen heater lamp, China, suppliers, manufacturers, factory, wholesale, price
