Quartz glass tubes are used in the manufacture of halogen, mercury, and xenon lamps, which are commonly used in lighting, stage lighting, and other fields. Due to its high temperature resistance properties, it is used in the manufacture of various heaters such as infrared heaters and ultraviolet heaters. In the laboratory, it is commonly used in tube furnaces, chemical reactors, quartz bet sample tubes and other equipment for high temperature experiments and chemical reactions. As a container for epitaxy, diffusion, oxidation, etc. in the semiconductor production process. Used in ovens, drying equipment, etc., as well as some occasions that require corrosion resistance and high temperature resistance. Daily life such as aquarium heaters, quartz tube foot warmers and so on.

Types of quartz glass tubes

Transparent quartz tubes: with an outer diameter ranging from 1.5mm to 300mm, they are the most common type.

UV Filtering Quartz Tubes: have the function of filtering ultraviolet rays.

Colored Quartz Tubes: Including milky white tubes, pink tubes, etc., with specific colors and uses.

The softening point temperature of quartz glass is about 1730°C. It can be used for a long time at 1100°C, and the maximum temperature for a short time can be up to 1450°C. In addition to hydrofluoric acid, quartz glass almost no chemical reaction with other acids, and its acid resistance is 30 times that of ceramics, 150 times that of stainless steel, especially at high temperatures, the chemical stability of any other engineering materials are incomparable. The thermal expansion coefficient of quartz glass is extremely small, can withstand drastic temperature changes, the quartz glass will be heated to about 1100 ℃, into the room temperature water will not blow up.

The production process of large diameter glass tubes mainly includes batching, melting, forming and annealing. Among them, the forming process is particularly critical, usually using mechanical forming methods such as centrifugal casting, where the molten glass is injected into a high-speed rotating mold, the centrifugal force is used to make the glass cling to the mold wall, and the rotation continues until the glass hardens. This method is capable of producing large diameter, high quality glass tubes.