The main component of quartz sand is silica, and the main component of glass is silica. Quartz sand is a silica component for glass. It is an indispensable raw material for glass.
The main raw materials of glass are: silica sand, soda ash, feldspar, dolomite, limestone, thenardite.
Glass production method
1. Breaking raw materials such as quartz sand into powder, mixing and mixing in proportion to form a batch;
2. The batch material is sent to the glass melting furnace and melted into a glass liquid at 1700 degrees;
3. The glass liquid is made into a flat glass, a bottle, a vessel, a bulb, a glass tube, a fluorescent screen with a corresponding molding device...
4. The various glass products formed are sent to the annealing kiln for annealing to balance the stress and prevent self-breaking.
In addition, some glass products can be rigidified in order to increase their strength. Including: physical rigidification (quenching), for thicker glass, tabletop glass, automotive windshield, etc.; and chemical rigidification (ion exchange), for watch glass, aviation glass, etc. The principle of stiffening is to generate compressive stress on the surface layer of the glass to increase its strength.
Therefore, quartz sand plays a very important role in the glass industry. Basically, it is impossible to produce glass without quartz sand. Quartz sand is the main raw material in the first process in the glass production process.
Quartz sand is used in the glass industry: glass flat glass, float glass, glass products (glass jars, glass bottles, glass tubes, etc.), optical glass, glass fiber, glass instruments, conductive glass, glass cloth and anti-radiation special glass The main raw materials.
In addition to the glass industry, quartz sand also plays a role as a raw material in other industries. Such as ceramics and refractory materials: porcelain billets and glazes, kiln high silica bricks, ordinary silica bricks and silicon carbide and other raw materials. Metallurgy: raw materials or additives such as silicon metal, ferrosilicon alloy and silicon aluminum alloy, flux chemical: raw materials such as silicon compound and water glass, filler of sulfuric acid tower, amorphous silica fine powder machinery: main raw material for foundry sand, grinding Materials (blasting, hard abrasive paper, sandpaper, abrasive cloth, etc.). The more widely used quartz sand is, it is slowly applied to many high-tech products.
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