It is made of quartz glass tube processing. Quartz glass is a silica-containing substances, such as quartz, silica. Four silicon oxide as raw materials made of high temperature melting. Its silica content is much higher than ordinary glass, quartz glass, silica content generally 99.999%. Quartz glass has excellent optical properties, particularly good not only visible light transmittance, and ultraviolet through the infrared.
Quartz glass is a good acid material, in addition to more than 300 degrees of hydrofluoric acid and hot phosphoric acid at high temperatures, it is resistant to sulfuric acid, nitric acid, hydrochloric acid, aqua regia, neutral salts, carbon and sulfur corrosion, its chemical stability acid-resistant ceramic equivalent of 30 times the equivalent of a nickel-chromium alloy and ceramic 150 times, it is high temperature, thermal shock, thermal expansion coefficient very small.
Excellent electrical properties of quartz glass, at room temperature, its resistance is equivalent to 10 times that of ordinary glass, dielectric loss for all frequencies is very small, large compressive strength insulation.
Quartz glass is also resistant to cosmic radiation, nuclear fission products and impervious nature.
Range of purposes
Quartz glass is mainly used in terms of electric light, semiconductors, optical and other new technologies.
New light source areas: do high-pressure mercury lamp, a long arc xenon lamp, a halogen lamp, thallium iodide lamp, infrared lamps and light disinfection.
Semiconductor areas: semiconductor materials and devices in the production process indispensable material, such as the growth of germanium, silicon single crucible, boat furnace core tube and bell like.
In the field of new technologies: excellent performance with its sound, light, electricity, and do ultrasound delay line on the radar, infrared tracking direction finding, infrared photography, communication, spectrograph, spectrophotometer prism, lens, large windows reflecting telescope, high-temperature operation window, reactors, radioactive devices; rockets, missile nose cones, Nozzles and radome: satellite radio insulation parts, radiation; heat scales, vacuum suction device, precision casting and so on.
Quartz boats are also used: chemicals, metallurgy, electrical, scientific research and so on. In Chemicals: do hot acid gas combustion, cooling, and ventilation means, the acidic solution was evaporated, cooled absorbate receiving, storage means, distilled water, hydrochloric acid, nitric acid, sulfuric acid, etc., and other physical chemical preparation Lab Supplies. In terms of high temperatures for industry: do optical glass crucible into the phosphor polite, muffle furnace, combustion gas radiator, in optics: quartz glass and quartz glass wool can be used as rocket nozzles, heat-resistant spacecraft cover and observation windows, etc., in short, with the development of modern science and technology, quartz glass to be more widely used in various fields.