Product Description:Quartz glass is made by melting various pure natural quartz (such as crystal, quartz sand, etc.). The linear expansion coefficient is extremely small, which is 1/10~1/20 of ordinary glass, and has good thermal shock resistance. Its heat resistance is very high, the temperature for regular use is 1100ºC~1200ºC, and the temperature for short-term use can reach 1400ºC. Quartz glass is a silica single component glass. According to the transparency, it is divided into two categories: transparent and opaque.
Product applications:
The formation of quartz glass is the result of its high melt viscosity at high temperature. It is used in the manufacture of semiconductors, electric light sources, semiconductor communication devices, lasers, optical instruments, laboratory instruments, electrical equipment, medical equipment and high temperature and corrosion resistant chemical instruments, chemical industry, electronics, metallurgy, building materials and national defense industries. very broad.
Product features:
1) Quartz glass has extremely low thermal expansion coefficient, high temperature resistance, excellent chemical stability, excellent electrical insulation, low and stable ultrasonic delay performance, the best UV spectral performance and visible light and near Infrared spectral performance, and has higher mechanical properties than ordinary glass.
2) Quartz glass is an acidic material, except for hydrofluoric acid and hot phosphoric acid, it is inert to any other acid, and it is the best acid-resistant material. The degree of corrosion of quartz glass by alkalis and salts at room temperature is also extremely small, so the use of quartz glass in these reagents is not excluded.
3) Quartz glass does not absorb moisture and does not weather. Quartz glass is very sensitive to all alkali and alkaline earth compounds, and very slight traces of these compounds can also induce crystallization of quartz glass at high temperatures.
4) The structure of quartz glass is very relaxed, and even at high temperature, ions of some gases are allowed to diffuse through the network, among which the diffusion of sodium ions is the fastest.
5) Quartz glass has high dielectric strength and extremely low electrical conductivity, that is, it can still maintain high dielectric strength and resistance under high temperature, high pressure and high frequency, and there is almost no dielectric in the applied frequency band. Electrical losses, so quartz glass is an excellent high temperature dielectric insulating material.
6) Quartz glass has its unique optical properties. It can not only transmit far ultraviolet spectrum, which is the best of all ultraviolet transmitting materials, but also transmit visible light and near infrared spectrum.
7) The mechanical properties of quartz glass are better than that of hard glass and ceramics, but the brittleness is poor.
Product precautions:
1. Quartz glass products are precious materials, and must be handled with care when using them;
2. All kinds of quartz glass have a maximum operating temperature, which should not be exceeded during use, otherwise it will crystallize or soften and deform;
3. Quartz glass that needs to be used at high temperature must be wiped clean before use. It can be soaked with 10% hydrofluoric acid or lotion, then cleaned with high-purity water or treated with alcohol. Thin-line gloves should be worn during operation, and direct contact with quartz glass is not allowed;
4. Quartz glass products are allowed to be used continuously at high temperature, which is good for prolonging the life of quartz glass and improving temperature resistance. On the contrary, the intermittent use of quartz glass products at high temperature has a limited number of uses;
5. Although the quartz glass material has extremely high thermal stability, it can withstand severe temperature changes. However, in actual use, due to the difference in residual strain and product shape, the thermal stability has a certain difference, and attention should be paid during use;
6. Quartz glass is an acidic material. Strictly avoid contact with alkaline substances (such as water glass, asbestos, potassium-sodium compounds, etc.) when used at high temperatures, otherwise its anti-crystallization performance will be greatly reduced.
Main Cooperation Materials Manufacturers: CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETC
Main Export Countries & Areas: Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.
Raytekoptics Extra value added services offered: 1). Optical workcraft & process solution design; 2). Rough processing raw materials; 3). Semi finishing raw materials; 4). Fabricate custom sizes and shapes; 5). Design and supply custom coatings; 6). Modify and resurface customer supplied materials; 7). Drill holes, notch glass and provide beveled substrates; 8). Precision polish optics with non-standard aspect ratios;
Payment Method: by T/T or Western Union. Delivery time: 7-10 days. Quality Warranty: Ruitaiphotoelectric(Raytekoptics) offersquality warranty for our optics products with "3R" policy. For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.
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