Classification and molding process of borosilicate sight glass
1, low alkali borosilicate sight glass: refers to the composition of SiO2-B2O3-R2O, R2O, SiO2 with low high sight glass, small linear expansion coefficient, dispersion, good chemical stability, high thermal stability, good insulation, as the sight glass before (such as Pyrex), heat-resistant cookware, ampoule sight glass, neutral sight glass, electric vacuum sight glass, optical LCD, sight glass substrate, solar panels and solar collector.
2, alkaline earth borosilicate sight glass: refers to the composition of SiO2-B2O3-RO, such as SiO2-B2O3-PbO components, preparation of optical sight glass, low temperature glaze using system; SiO2-B2O3-PbO/ZnO component for crystalline powder solder, as a cathode ray tube (CRT) for sealing; SiO2-B2O3-ZnO components for electronic devices, rectifier, passive aspect.
3, lanthanum borosilicate sight glass: SiO2-B2O3-La2O3-RmOn composition. For example, SiO2-B2O3-La2O3-CaO-ZnO-ZrO2 component has high refractive index, low dispersion, good chemical temperature and low permeability. It is used as optical sight glass.
4, rare earth doped borosilicate sight glass: SiO2-B2O3-RmOn based components, Pr, Nd doped laser sight glass, doping Au, Ag, Cu, CdS, nonlinear optical sight glass doped ZnS:Mn nanocrystalline luminescent sight glass.