I believe we come into contact with various glass products every day, such as glasses, glass doors, glass windows, and so on. Although we often come into contact with them, we do not have much understanding of the types and performance of these glasses. However, due to a lack of understanding of glass cup materials, various problems often occur. We will introduce the heat resistance of glass wine glasses and help you understand how high temperatures glass can withstand.
1、 How about the heat resistance of glass wine glasses
High quality glass beer cups are usually made of high borosilicate glass.
High borosilicate glass (also known as hard glass) is made by heating and melting inside the glass, and has conductivity at high temperatures. Due to its linear thermal expansion coefficient of (3.3 ± 0.1) × 10-6/K, also known as “borosilicate glass 3.3″, is a special glass material with low expansion rate, high temperature resistance, high hardness, high transmittance, and high chemical stability. Due to its excellent performance, it is widely used in industries such as solar energy, chemicals, pharmaceutical packaging, electric light sources, and process accessories.
High borosilicate glass has good thermal stability and a softening temperature of up to 820 ℃, which is sufficient for daily use.
2、 How high can a glass withstand temperature
Generally speaking, the content of silicon dioxide is lower than that of ordinary glass
Heat resistance of other glass products
The silica content of quartz glass is greater than 99.5%, and the heat resistance temperature is above 1600 ℃
When tempered glass is uniformly heated, its heat resistance cannot exceed 650 ℃, and when it exceeds 388 ℃, its mechanical properties gradually decrease
Related concepts
glass
Glass is an amorphous inorganic non-metallic material. It is usually made from various inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw materials, and a small amount of auxiliary raw materials are added. Its main components are silicon dioxide and other oxides. The chemical composition of ordinary glass is Na2SiO3, CaSiO3, SiO2, or Na2O · Cao · 6sio2. The main component is silicate composite salt, which is an amorphous solid with irregular structure. Widely used in the separation of wind and light in buildings, it belongs to the mixed type. There are also colored glass mixed with some metal oxides or salts, as well as tempered glass made by physical or chemical methods.
Post time: Dec-02-2023