Quartz (Quartz) is a very heat-resistant and chemically stable material. It has many excellent physical, thermal and electrical properties and is widely used in fields such as optics, electronics and machinery.
. The following are the main properties of quartz:
physical properties
Specific Gravity, S.G.: About 2.65
Porosity: extremely low, quartz is a non-porous body
Vickers Hardness: Approximately 820 HV
Flexural Strength: about 90 MPa
Compressive Strength: About 1100 MPa
Young's Modulus: approximately 72 GPa
Fracture Toughness: about 0.7 MPa√m
thermal properties
Coefficient of Thermal Expansion: approximately 0.59×10^-6 /°C
Thermal Conductivity: approximately 1.4 W/m·K
Specific Heat: About 0.67 J/g·K
Electrical properties
Dielectric Strength/Resistivity: Very High
Volume Resistivity: >10^18 Ω·cm
Dielectric constant (Permittivity)@1MHz: about 3.8
Dielectric Loss Angle@1MHz: extremely low
Quartz processing technology is a technology that processes natural quartz ore to obtain quartz products for various uses. Quartz is a common ore whose main component is silica. It has the characteristics of high hardness, high temperature resistance, and good chemical stability. Therefore, it is widely used in glass, ceramics, building materials, electronic products and other fields.
The quartz processing process includes raw material selection, stone crushing, grinding, screening, smelting, shaping and other steps. The first is the selection of raw materials, which need to be screened and selected to remove impurities and impurities. Then crush the stone to coarsely and finely crush the raw materials for subsequent processing. Then there is grinding, where the gravel is ball milled or groove milled to make the particles fine and uniform. Next is screening, where the ground material is screened to separate particles that meet the requirements. Then there is smelting, where the screened materials are subjected to high-temperature smelting to obtain the desired finished product. The last step is molding, where the smelted materials are shaped into products of various shapes and sizes.
Quartz processing equipment mainly includes stone crushers, ball mills, screening machines, furnaces and other equipment. The stone crusher is used to coarsely and finely crush the raw materials, the ball mill is used to grind the gravel, the screener is used to screen the ground materials, and the furnace is used for high-temperature smelting. In addition, corresponding auxiliary equipment and supporting facilities are also required, such as storage equipment, conveying equipment, dust removal equipment, etc.
Quartz processing methods mainly include physical processing and chemical processing. Physical processing refers to processing raw materials through physical means such as gravel, grinding, and screening to change their particle size and shape; chemical processing refers to processing raw materials through chemical reactions or chemical dissolution to change their particle size and shape. its chemical properties and structure. In actual production, a suitable processing method is usually selected based on the requirements of the product and the characteristics of the raw materials.
Quartz products are widely used in various fields, such as in the glass industry for the manufacture of glass raw materials, in the ceramic industry for the manufacture of ceramic raw materials, and in the building materials industry for the manufacture of refractory materials. In addition, it also has important applications in the manufacturing of electronic products, such as manufacturing transistors, optical fibers, etc. With the continuous development of science and technology, the quality and performance requirements for quartz products are becoming higher and higher, so the requirements for quartz processing technology are also increasing.