Physical and chemical properties of quartz tube Quartz glass tube is made of silica [1] special industrial technical glass, which is a very good basic material. Quartz glass has a series of excellent physical and chemical properties,
such as:
The softening point temperature of high temperature resistant quartz glass is about 1730°C, it can be used for a long time at 1100°C, and the maximum use temperature can reach 1450°C in a short time.
2. Corrosion In addition to hydrofluoric acid, quartz glass has almost no chemical reaction with other acid substances, its acid resistance is 30 times that of ceramics and 150 times that of stainless steel, especially its chemical stability at high temperature, which is the best of any other engineering material. incomparable.
3. Good thermal stability The thermal expansion coefficient of quartz glass is extremely small, and it can withstand severe temperature changes. When the quartz glass is heated to about 1100 ℃, it will not burst into normal temperature water.
4. Good light transmission performance Quartz glass has good light transmission performance in the entire spectral band from ultraviolet to infrared, and the visible light transmittance is above 93%, especially in the ultraviolet spectral region, the maximum transmittance can reach more than 80.
5. Good electrical insulation performance The resistance value of quartz glass is equivalent to 10,000 times that of ordinary glass. It is an excellent electrical insulation material and has good electrical properties even at high temperatures. Because of its excellent physical and chemical properties, quartz glass is widely used in various fields such as electric light sources, semiconductors, optical communications, military industry, metallurgy, building materials, chemistry, machinery, electricity, and environmental protection. (The information is for reference only!) Types of quartz tubes Quartz tubes can be roughly divided into the following categories: transparent quartz tubes (outer diameter 1.5mm--300mm), UV filter quartz tubes, colored quartz tubes, etc.