What is the performance and test method of quartz tube

  Chemical properties: 1. The softening point temperature of high temperature resistant quartz glass is about 1730 ° C, which can be used for a long time at 1100 ° C. The maximum use temperature can reach 1450 ° C in a short time. 2, corrosion resistance In addition to hydrofluoric acid, quartz glass almost does not chemically react with other acids, its acid resistance is 30 times that of ceramics, 150 times that of stainless steel, especially at high temperatures, is any other Engineering materials are unmatched.


  Physical properties: 1. Good thermal stability Quartz glass has a very small thermal expansion coefficient and can withstand severe temperature changes. The quartz glass is heated to about 1100 ° C and will not burst when placed in normal temperature water. 2. Good light transmission performance Quartz glass has good light transmission performance in the whole spectrum of ultraviolet to infrared, and the visible light transmittance is above 93%, especially in the ultraviolet spectral region, the maximum transmittance is over 80%. . 3, good electrical insulation performance Quartz glass resistance value is equivalent to 10,000 times that of ordinary glass, is an excellent electrical insulation material, even at high temperatures have good insulation properties. Quartz glass has been widely used in various fields such as electric light source, semiconductor, optical communication, military, metallurgy, building materials, chemistry, machinery, electric power, and environmental protection because of its excellent physical and chemical properties. 4, shortcomings: fragile.


  Detection method of quartz tube: (1) Detecting the resistance value of quartz tube The quartz tube can be tested by a multimeter to change its resistance value, and the multimeter's gear position is adjusted to "beep block", and the red and black test pens are respectively placed at the two ends of the quartz tube. The multimeter's buzzer should sound and the pointer should point to zero. If the multimeter buzzer emits no sound when it is detected, and the pointer points to infinity, it indicates that the inside of the quartz tube is damaged. (2) Detecting the supply voltage of the quartz tube When detecting the supply voltage of the quartz tube, first adjust the range of the multimeter to the "AC 250V" voltage block, and the red and black test leads are respectively placed on the power supply end of the quartz tube, as shown in the figure below. At this time, observe the reading of the multimeter. If the AC is about 220V, the supply voltage of the quartz tube is normal.


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