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Take you to understand a magic glass - high borosilicate gla

TIME:2017/05/05 CLICK:

It: high borosilicate glass (also known as hard glass);
It is due to the coefficient of linear thermal expansion (3.3 *) x 10-6/K, also known as "borosilicate glass 3.3;
It is a kind of special glass materials: low expansion rate, high temperature resistance, high strength, high hardness, high transmittance and high chemical stability, because of its excellent performance, widely used in solar energy, chemical industry, pharmaceutical packaging, electric light, jewelry and other occupation skills;
It: outstanding function has been widely recognized by the world, especially the wider use of solar energy category, Germany, the United States and other developed countries have been carried out more widely.
Pre history
In 1893, Otto Short (Otto Schott) invented a chemically resistant borosilicate glass.
Making process
Borosilicate glass, to participate in the production of borosilicate glass frit glaze water, soda and ground lime. Because borosilicate glass melts at a higher temperature than ordinary silicate glass, it also requires some new skills to make industrial production. From the welding trade contact with new loan, the combustion of natural gas oxygen demand.
Widely used
The fire resistance and physical strength of borosilicate glass make it an ideal choice in the laboratory, it is used to make laboratory equipment such as beaker and tube high durability glass. In addition, the minimum exposure of borosilicate glass bends to allow accurate measurement of the volume of boron - silicon heat-resistant containers for a period of time.
In the mid twentieth Century, borosilicate glass tubing was used as a coolant (usually distilled water) through a high power vacuum tube based electronic device, such as a commercial transmitter.
Glass cookware is another common usage, a borosilicate glass pie plate is almost American Standard plate. Borosilicate glass cups, with painted symbols, clarify graduated measuring, also widely used in the kitchen.
Aquarium heaters sometimes out of borosilicate glass. Because of its high heat resistance, it is able to withstand the temperature difference between water and nickel chromium alloy heating elements.
A lot of high quality flashlights use lenses of borosilicate glass. This allows a higher percentage of the transmittance of the plastic and the lower quality of the glass through the lens comparison.
Professional lighters and pipes are borosilicate glass. The high heat resistance allows the tube to endure longer periods of time, and these pipes are increasingly used.
New drawing skills to make the use of glass balls and other contemporary art. The modern glass art movement, promoted by borosilicate glass in Nuosisita century color palette on 80s and 90s is the rapid development, the supply of borosilicate glass suppliers broad economic added. Boron silicon is commonly used in the way of drawing glass blowing and artists invented jewelry from the kitchen, including the scale of goods to sculpture as well as art 70955.
Borosilicate glass is sometimes used in high quality beverage glassware. Borosilicate glass lends itself to microwave oven and dishwasher compatibility with kitchen utensils and glassware.
Most astronomical telescope mirror assemblies are made of glass as it relates to the thermal expansion coefficient of low borosilicate glass. This makes it very accurate that the optical appearance may vary very little with temperature, and the matching of the glass mirror assembly, "to track" in the temperature change, and to preserve the characteristics of the optical system.
The most common optical glass lens making tool used by Schott Ford - 7 (or from other producers, equivalent) a very fine borosilicate crown glass. It has also been designated as the 1.517 refractive index of glass and Abbe number of 517642 after 64.2. Other valuable borosilicate glass, such as Schott B270 or equivalent, can be used to produce "crown glass" spectacle lenses. The cost of general low borosilicate glass, which is used to make kitchen utensils, as well as reflective telescope mirror, can not be used for stripes and inclusions to cope with the glass of the lower grade high-quality lenses.
Borosilicate is also a choice of vacuum tube solar thermal technology, because of its high strength, heat resistance.
Borosilicate glass has also been found to be a micro electromechanical device known for microelectromechanical systems, and is used to perform part of the bonded wafer etching of semiconductor silicon etching in the semiconductor profession.
Borosilicate glass is used on the space shuttle. Lighting equipment maker using the index of refraction of borosilicate glass.
Its primary function indicators have reached the world ISO specification, and the United States of Corelle's 7740 material, the German Schott company's material is the same material of the 50. In comparison with the glass, non-toxic side effects, its mechanical function, thermal stability, water resistance, alkali resistance, acid properties greatly improved, can be widely used in chemical, aerospace, military, family, hospital and other areas, can be made into tableware, lamps, dial, telescope, washing machines and microwave survey holes. A solar water heater, etc. a variety of goods, has outstanding implementation value and social benefit, this kind of glass in the China there is a new innovation foundation material industry.
Solar water heater, vacuum heat collection tube of the primary information, the main use of its excellent light transmission, excellent mechanical function and outstanding impact resistance. Some manufacturers use low iron glass, lacking in the above function, component and appearance with high borosilicate difference. Dark and light. General small manufacturers use more
Production skills
High boron silicon glass, is the use of glass in the high temperature state of the conductive characteristics, through the internal heating of glass to complete the melting of glass, the leading production technology and processing.

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