What is the difference between coloured glaze and glass
Different raw materials: glass, Bai is a variety of inorganic minerals du (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw materials. The main components of glaze are SiO2 (silicon dioxide), alumina and silica co-solvent lead oxide.
Different USES: glass is widely used in construction, daily use, art, medical, chemical, electronic, instrumentation, nuclear engineering and other fields. Glass and glass, metal plane bonding available UV glue (no shadow glue), use at the same time with ultraviolet lamp irradiation, in order to speed up curing. Glass and wood plane bonding available transparent AB glue. Glass and stone plane bonding available transparent neutral silica gel. The glaze can also be fixed to other objects by punching holes with expansion screws (decorative screws).
The classification is different: the simple classification of glass is mainly divided into flat glass and deeply processed glass. Glass is divided into three types: ancient glass, water glass and Taiwan glass.
In terms of structure, the glass is a kind of inorganic BAI thermoplastic polymer, which can form a zhi shape when the temperature is higher than 650℃. After cooling, the glass has such characteristics as transparency, corrosion resistance, DAO wear resistance, and compression resistance. Glass has a lower coefficient of thermal expansion than steel, is a poor conductor of electricity and heat, and is a kind of living brittle amorphous substance. Specific gravity :2.46~2.5, specific heat :0.2(0℃~50℃), practical surface tensile strength: 500kGF/cm2.
Glass name originated in the Tang dynasty, namely refers to the glass raw materials plus lead oxide, known as crystal glass. And the proportion that adds lead oxide, also differ somewhat with the custom definition of each country, generally speaking, when the proportion of lead oxide amounts to 24% above, the transmittance of glass and refractive index are better, at the same time heavier also, softer, suit to burn fine glass artwork very much. When general Euramerican country says crystal vessel, point to to use this kind of crystal glass to pledge namely, its price is expensive not be general glass can compare. Artificial glass "coloured glaze" it is glass, just added lead to change very glittering and translucent get rid of to show just ability somebody calls crystal, if appreciate with pure artistic vision, also have collect of course value.