The quartz glass tube is made of silica manufacturing [1 ] special industrial technology glass, is a very good base material. Quartz glass with a series of excellent physical and chemical properties。
First, high temperature resistant.Quartz glass softening temperature of about 1730 DEG C at 1100 DEG C, can be used for a long time, the short time maximum temperature up to 1450 DEG c.,
Second, corrosion resistance.In addition to hydrofluoric acid, quartz glass hardly and other acid substances to chemical reaction, the acid is 30 times of ceramic, stainless steel 150 times, especially in the high temperature chemical stability, any other engineering materials cannot compare.
Third, good thermal stability.Quartz glass thermal expansion coefficient is extremely small, can withstand the severe temperature changes, the quartz glass is heated to 1100 degrees Celsius, placed in warm water and it will not be broken.
Fourth, good light transmission performance.Quartz glass in the ultraviolet to infrared whole spectral bands have better transmission performance, visible light transmittance of 93% or more, especially in the UV spectral region, the maximum transmission rate can reach more than 80.
Fifth, good performance of electrical insulation.Quartz glass resistance value is equivalent to ten thousand times of ordinary glass, is an excellent electrical insulating materials, even at elevated temperatures also has good electrical properties. Quartz glass because of the excellent physical and chemical properties, so it is widely used in electric light source, semiconductor, optical communications, military industry, metallurgy, building materials, chemical, mechanical, electric power, environmental protection and other fields.
Quartz tube can be roughly divided into the following categories: transparent quartz tube ( diameter 1.5mm--300mm ), filter UV quartz tube, quartz tube.