Low Flow Resistance Borosilicate 5.0 Transparent Glass Tube OD6-32mm

Low flow resistance Transparent Glass Tube

Compared with ordinary glass, toxic side effects, mechanical properties, thermal stability, water, alkali, acid and other performance greatly improved. It can be widely used in various fields such as chemical industry, aerospace, military, family, hospital and so on. Lamps, standard board, telescope mirrors, viewing aperture washing machine, a microwave oven plate, solar water heaters, and other products. , Has good promotion value and social benefits. This glass appeared in our country, is another new revolution in basic materials industry.

Alkaline earth metal oxide raw materials: CaO, MgO, BaO, ZnO, PbO materials. Adding CaO and MgO to the glass can reduce the tendency of soda silica glass to crystallize and enhance the chemical stability. It can reduce the viscosity of glass at high temperature and promote the melting and refining of glass. However, as the temperature decreases the viscosity increases rapidly, difficulty forming operation. The raw materials are limestone (CaCO3) and dolomite sulphur ore (MgCO3), or contain both CaO and MgO. BaO and ZnO are often added to the glass to adjust the refractive index and chemical stability of the glass. The raw materials used are generally industrial zinc oxide and BaCO3, BaSO4 or Ba(NO3)2. PbO glass was added can significantly increase the refractive index and dispersion, short wavelength light absorbing glass. While increasing the proportion of the melting temperature decreases, good wettability with the metal. The listed PbO raw materials are red lead, yellow lead or industrial lead nitrate.