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Tag: borosilicate glass cookware suppliers

Borosilicate Glass Chemical Compatibility

Tuesday, 08 October 2019 by admin

Borosilicate Glass Chemical Compatibility

The borosilicate glass has good fire resistance and high physical strength. Compared with the general glass, it has no toxic and side effects, and its mechanical properties, thermal stability, water resistance, alkali resistance and acid resistance are greatly improved. Therefore, it can be widely used in various fields such as chemical industry, aerospace, military, family, hospital, etc. It can be made into lamps, tableware, standard plates, telescope tablets, washing machine observation holes, microwave oven plates, solar water heaters, etc., with good promotion value and social benefits.
Borosilicate glass is an important material for the manufacture of high-endurance glass instruments such as beakers and test tubes. Of course, its application is far more than this, other applications such as vacuum tubes, aquarium heaters, flashlight lenses, professional lighters, pipes, glass ball art, high-quality beverage glassware, solar heat utilization vacuum tubes, etc. It has also been applied in the aerospace field. For example, the space shuttle’s thermal insulation tiles are also coated with high borosilicate glass.

Characteristic
The borosilicate glass has a very low coefficient of thermal expansion, which is only about one third of that of ordinary glass. This will reduce the effects of temperature gradient stress and thus have stronger fracture resistance. Due to its very small shape deviation, it has been an indispensable material in telescopes and mirrors, and it can also be used to treat highly radioactive nuclear waste. Even if the temperature suddenly changes, the borosilicate glass is not easily broken. When broken, the borosilicate glass will have large cracks instead of being pulverized into particles. At the same time, borosilicate glass also has low dispersion and a relatively low refractive index.
Borosilicate Glass Chemical Compatibility: the linear expansion coefficient of borosilicate glass G3.3 is (3.3 ± 0.1) × 10-6 / K, which is based on sodium oxide (Na2O), boron oxide (B2O3), and silicon dioxide (SIO2). Kind of glass. The glass component has a high content of borosilicate, which is boron: (12.5 to 13.5)%, and silicon(78 to 80)%.

The specific physical and chemical properties of G3.3 borosilicate glass are as follows:

Silicon More than 80 %
Strain temperature 520 ℃
Annealing temperature 560 ℃
Softening temperature 820 ℃
Refractive index 1.47
Light transmittance (2 mm) 92 %
Modulus of elasticity 76KNmm – 2
Tensile strength 40- 120Nmm – 2
Glass stress optical constant 3.8 * 10-6 square mm / no
Processing temperature (104dpas) 1220 ℃
Linear expansion coefficient (20-300 °C) 3.3 * 10-6 K – 1
Density (20 °C) 2.23gcm – 1
Specific heat 0.9jg – 1K- 1
Thermal conductivity 1.2Wm – 1K- 1
Water resistance (International Organization for Standardization 719) Level 1
Acid resistance (International Organization for Standardization 195) Level 1
Alkali resistance (International Organization for Standardization 695) Level 2

Living products
Because borosilicate glass has a very low coefficient of thermal expansion and high temperature resistance, it is a halogen lamp reflective heat-resistant lampshade, microwave oven-specific glass turntable, microwave oven lampshade, stage light reflector cup, drum washing machine observation window, heat-resistant teapot cup Important materials such as solar collector tubes.

Media Contact:

Ella

ella@boomingglassware.com

www.boomingglassware.com

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Chongqing Booming Glassware Co., Ltd. is located in one of the largest glass industrial parks. With 8years of experience in manufacturing and exporting glass cups and bottles. Regardless of what product you’re sourcing, contact us with any questions or concerns, experience our outstanding custom services.

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