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Performance quartz glass
1, high temperature; quartz glass softening point temperature of about 1730 ℃. at 1180 ℃ under long-term use, short-term maximum temperature up to 1450 ℃
2., confidential performance: superior mechanical properties of quartz glass and glass ceramics, several key indicators of density 2.2g/cm3, the elastic modulus of 700 * 103kg/cm3, tensile strength -500kg/cm3, dissolved hardness of 5.5-6.5, at the annealing temperature of 1180 ℃ maximum intensity, which is a major feature of quartz glass.
3,. Thermal properties: 5.4 * 10-7, the coefficient of thermal expansion of quartz glass is extremely small, equivalent to ordinary glass, 1/12-1/20, at 0-1000 ℃ The average expansion coefficient of thermal expansion of the number of very small, so it is exposed to hot and cold temperature resistant CML ability is quite strong, and can withstand the thermal shock 1200-15 ℃ Test
4 Quartz glass is a good acid material;, except hydrofluoric acid and 300 degrees above the hot phosphoric, at high temperatures, it is resistant to sulfuric acid, nitric acid, hydrochloric acid, aqua regia, neutral salts, such as erosion of carbon and sulfur, which chemical stability of acid-resistant ceramic is equivalent to 30 times compared to nickel-chromium alloys and ceramics. white stainless steel 150 times that of its high temperature, thermal shock resistance, thermal expansion coefficient, particularly small , in particular, chemical stability at high temperatures. Any other material is unmatched.,
5, quartz glass, excellent electrical insulation properties; At room temperature, its resistance is equivalent to that of ordinary glass 100 times, for all frequencies is very small dielectric loss, insulation large compressive strength. The quartz glass is an excellent insulating material,
6, optical properties: quartz glass in the ultraviolet to infrared spectral band has good cross the light transmission properties, visible light transmittance 95% or more, particularly through the ultraviolet region of the spectrum, the maximum transmittance of up to .85% more,
7, specific heat and thermal conductivity; quartz glass, the average specific heat of 0 --- 100 ℃ to 722 joules/kg, k0, 0 --- 500 ℃ to 964 joules/kg, ko, 0 --- 900 ℃ to 1052 joules/kg, k0, quartz glass tube thermal rate of 20 ℃ of 1,38 w/kg, m., 200 ℃ of 1,55 w/kg, m, 400 ℃ of 1,84 w/kg, m, 950 ℃ of 2,68 w/kg, m
2., confidential performance: superior mechanical properties of quartz glass and glass ceramics, several key indicators of density 2.2g/cm3, the elastic modulus of 700 * 103kg/cm3, tensile strength -500kg/cm3, dissolved hardness of 5.5-6.5, at the annealing temperature of 1180 ℃ maximum intensity, which is a major feature of quartz glass.
3,. Thermal properties: 5.4 * 10-7, the coefficient of thermal expansion of quartz glass is extremely small, equivalent to ordinary glass, 1/12-1/20, at 0-1000 ℃ The average expansion coefficient of thermal expansion of the number of very small, so it is exposed to hot and cold temperature resistant CML ability is quite strong, and can withstand the thermal shock 1200-15 ℃ Test
4 Quartz glass is a good acid material;, except hydrofluoric acid and 300 degrees above the hot phosphoric, at high temperatures, it is resistant to sulfuric acid, nitric acid, hydrochloric acid, aqua regia, neutral salts, such as erosion of carbon and sulfur, which chemical stability of acid-resistant ceramic is equivalent to 30 times compared to nickel-chromium alloys and ceramics. white stainless steel 150 times that of its high temperature, thermal shock resistance, thermal expansion coefficient, particularly small , in particular, chemical stability at high temperatures. Any other material is unmatched.,
5, quartz glass, excellent electrical insulation properties; At room temperature, its resistance is equivalent to that of ordinary glass 100 times, for all frequencies is very small dielectric loss, insulation large compressive strength. The quartz glass is an excellent insulating material,
6, optical properties: quartz glass in the ultraviolet to infrared spectral band has good cross the light transmission properties, visible light transmittance 95% or more, particularly through the ultraviolet region of the spectrum, the maximum transmittance of up to .85% more,
7, specific heat and thermal conductivity; quartz glass, the average specific heat of 0 --- 100 ℃ to 722 joules/kg, k0, 0 --- 500 ℃ to 964 joules/kg, ko, 0 --- 900 ℃ to 1052 joules/kg, k0, quartz glass tube thermal rate of 20 ℃ of 1,38 w/kg, m., 200 ℃ of 1,55 w/kg, m, 400 ℃ of 1,84 w/kg, m, 950 ℃ of 2,68 w/kg, m
Performance quartz glass 2017/10/31 15:38:32 Hot:
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