Performance characteristics:
High temperature resistance: The softening point temperature of quartz glass is approximately 1730℃, allowing it to be used for extended periods at 1100℃, and for short periods at a maximum temperature of 1450℃.
Corrosion resistance: Except for hydrofluoric acid, quartz glass hardly reacts with other acidic substances. Its acid resistance is 30 times that of ceramic and 150 times that of stainless steel.
Good thermal stability: Quartz glass has an extremely low coefficient of thermal expansion, allowing it to withstand drastic temperature changes. When heated to around 1100℃, it will not crack even when placed in room temperature water.
Good light transmittance: Quartz glass exhibits good light transmittance across the entire spectral range from ultraviolet to infrared. Its visible light transmittance is over 93%, and in the ultraviolet spectral region, the maximum transmittance can reach over 80%.
Good electrical insulation performance: The resistance value of quartz glass is equivalent to 10,000 times that of ordinary glass, making it an excellent electrical insulation material, which maintains good insulation performance even at high temperatures.
Application fields:
In the laboratory field, it is often used as a high-temperature reactor and a storage container for high-purity chemicals. Its inertness ensures that experimental results are not distorted due to reactions with the container.
Optics: Due to its high transparency to ultraviolet (UV) rays, it is an essential material for UV applications such as UV water purification systems, medical disinfection equipment, and industrial curing processes.
Industrial field: It can be used as a thermocouple protection tube for high-temperature furnaces, boiler sight glasses, etc., capable of withstanding high temperatures and pressures.
Precautions for use:
Quartz glass products are fragile in nature, so they must be handled with care during use.
It should be used within the specified temperature range, avoiding exceeding its operating temperature, otherwise it may crystallize or soften and deform.
Quartz glass intended for high-temperature use must be wiped clean before use. It can be soaked in 10% hydrofluoric acid or cleaning solution, then rinsed with high-purity water or treated with alcohol. When handling, wear fine-lined gloves and do not touch it directly with your hands.
Continuous use of quartz glass products at high temperatures is beneficial for extending their lifespan and improving their temperature resistance. However, when used intermittently, the number of uses is limited.
Quartz glass is an acidic material. When used at high temperatures, it is strictly prohibited to come into contact with alkaline substances, as this will greatly reduce its resistance to crystallization.
