Introduction of heat-resistant glass and its application analysis
[China Glass Net] Heat-resistant glass (ceramic glass) has a series of excellent properties such as low expansion, thermal shock resistance, high temperature resistance, corrosion resistance and high strength. It can be used in large quantities to produce household products such as cookware and tableware. At present, many families are gradually adopting beautiful and high-quality glass-ceramic products instead of traditional ceramic products, which has become a fashion in developed countries. Heat-resistant glass tableware and cooking utensils mainly include heat-resistant tableware, heat-resistant utensils and cooking utensils, which can be divided into open fire appliances, dark fire appliances and hot water appliances. Glassware for open flame, mainly composed of ultra-base expanded glass-ceramics, with thermal shock strength up to 400 °C. It is mainly used for direct open flame heating, cooking and subjected to rapid heating and cooling. For example, frozen food can be combined with containers. Heat it directly with an open flame, a dark fire, or an electric stove. There are also some heat-resistant glass products with a thermal impact strength of 150 ° C or higher, which is mainly used for direct open flame heating or cooking. The glassware for dark fire has a thermal shock strength of 120 ° C or higher, and is mainly used for heating cooking without direct open flame. Ordinary glass is smelted together with quartz sand, soda ash and limestone. It is a mixture of silicates that make up the unfixed. The glass that people made earlier was a small piece of glass with poor transparency and some colors. Its color is not consciously added, but the raw materials used are impure and mixed with impurities. At that time, the color glass was only used to make decorations, and the requirements were not high. People just accidentally produced color glass. However, the color glass we demand today has very high scientific requirements, which can only be made after uncovering the secret of glass color. After research, it has been found that if 0.4 to 0.7% of a colorant is added to the ingredients of ordinary glass, the glass can be colored. Most of the colorants are oxides of metals. We have previously known that each metal element has its own unique "spectral characteristics", so different metal oxides can exhibit different colors. If these oxides are added to the glass batch, the glass is colored. For example, adding chromium oxide (Cr2O3), the glass is green; adding manganese dioxide (MnO2), the glass is purple; adding cobalt oxide (Co2O3), the glass is blue, the protective eyepiece for steel workers and welders is to use this Made of glass. Linen Viscose Big Slub Print,Linen Viscose Print,Cotton Spandex Print Twill,Big Stripe Print With Flower Shaoxing Sinofashion Textiles Co.,Ltd. , https://www.shownaturetex.com