| Specifications︰ | Opaque quartz tube is a special kind of silica glass products for heating and economizing on power. It has all the good properties of quartz glass: high purity, high temperature proof, excellent chemical stability, thermal shock proof, high dielectric strength and the excellent selectively absorbed to IP spectrum.
Opaque quartz tubes after absorbing infrared spectrum at wave length lower than 4¦Ì increased thermal radiation, and the emissivity at 5--13¦Ì far infrared wave band is more than 90%. It's very important for the materials which need heating and drying (generally more absorbing at zone 3--25¦Ì). It is an ideal heating material, greatly better than the other infrared materials.
Dielectric breakdown voltage: 15KV/mm.
Visible light spectrum transmittance: <8%
Infrared emissivity: wavelength<4¦Ì, less than 40%; wavelength >4¦Ì, more than 80%; wavelength >5¦Ì, more than 90%;
Chemical stability: Nearly no corrosion in all acids and, except the hydrogen fluoride and hot phosphoric acid. The alkali and salt proof properties is better than ordinary glass.
Opaque quartz tube is made of high purity quartz sand . It was pulled out from high temperature melting furnace.
The surface of this kind of tube is smooth and the color is pearl-white. The properties of the tube are: high purity(SiO2>99.95%); fire resistance(softening point 1650 centigrade); low coefficient of thermal expansion(5.5x10-7/centigrade, heat the tube to around 1100 centigrade, then put it into ordinary temperature water, the tube won't crack); excerllent insulating property; long usable life, no contamination. It is widely used in far infrared heating field and drying equipments.
Specifications:
Outer diameter: 3-60mm
Wall thickness: 0.5-5mm
Length: 40-3000mm
Density: 2.1g/cm2
Specifications can be made by detailed requirements.
Packing: bubble plastic + carton + wooden box.
Production Capability: 500MT/year.
Inventory Items:
15x18x2500mm, 21x25x2500mm, 27x33x1500mm, 45x50x2000mm.
All above sizes can be delivered in the shortest time.
|
|
|
|
