Maideli supplys various quartz products such as quartz sheet ,quartz tube ,quartz crucible ,etc…
Fused Clear Silica Quatz Glass Plate
Quartz glass has excellent optical spectrum property . It can transmit far UV spectrum , is the best one of all UV transmitting materials ,and also transmit visible light and near infrared spectrum . The user can select any sort within the wave-range of 185 mu~3500mu .For its excellent properties ,such as : high temperature proof ,low thermal expansion ,chemical stability ,thermal stability ,and similar to ordinary optical glass in bubble , striae ,homogeneity ,birefringence, optical quartz glass became an essential optical material for high stability optical system under worst conditions .
Guartz glass plate
Quartz glass plates are usually made by cutting and grinding quartz glass, and its silica content can reach more than 99.99%. The hardness is Mohs 7th grade, which has the characteristics of high temperature resistance, low thermal expansion coefficient, thermal shock resistance and good electrical insulation performance. Quartz glass sheets are usually colorless and transparent, with a visible light transmittance of more than 85%. Quartz glass can be divided into two categories: fused silica glass and synthetic quartz glass from the large production range. Heat resistance, light transmittance, electrical insulation, and chemical stability are all excellent.
| Quartz glass can work normally at a temperature of 1350 ℃, softening temperature is 1750 ℃. The thermal expansion coefficient of quartz glass is small, 5.5×10-7/℃, only 1/12～1/20 of the ordinary glass. The Ministry of Standards stipulates that the sample is quickly dropped into cold water after being burnt to 1200°C, and repeated three or more times is not allowed to burst. |
| The optical performance of quartz glass is unique. It can transmit far ultraviolet rays, is the best for all ultraviolet materials, and can transmit visible light and near infrared spectrum. The thermal expansion coefficient is extremely small, the chemical stability is good, bubbles, stripes, Uniformity and birefringence are comparable to ordinary optical glass, so it is an indispensable optical material with high stability optical coefficient in various harsh occasions |
| chemical properties | Quartz glass is an acidic material, except hydrofluoric acid and hot phosphoric acid, it is inert to any other acid and is the best acid-resistant material. The corrosion degree of alkali and salt to quartz glass at room temperature is also very small, so it is not excluded to use quartz glass in these reagents |
| mechanical property | Quartz glass has better mechanical properties than hard glass and ceramics, but its brittleness is poor. The theoretical calculation strength of quartz glass is very high, about 24×103MPa, but the actually measured strength is tens of times lower than this value. The main factor affecting the strength is firstly the surface defects of the glass, especially the size and depth of the surface micro-cracks are the most obvious. The finely ground quartz glass sample has a flexural strength increased by about 0.6 times than the coarsely ground sample; secondly Inherent defects, such as bubbles, impurities, uneven melting, and residual stress. The strength of quartz glass increases with increasing temperature and reaches its maximum value when approaching the annealing temperature |
| Application | Mainly used in high-temperature industries such as military industry, machinery, metallurgy, printing and dyeing, optical instruments, high-temperature sight glasses, fire-observing holes, etc. |
Character of quartz plate | Value |
Density | 2.2g/cm3 |
Hardness | 570KHN100 |
Tensile strength | 4.8×107Pa(N/m2) |
Coefficient of thermal expansion (20℃-300℃) | 5.5×10-7cm/cm℃ |
Thermal conductivity (20℃) | 1.4W/m℃ |
Specific heat(20℃) | 660J/kg℃ |
Softening point | 1730℃ |
Annealing point | 1250℃ |
Product Specifications:
Round quartz glass --Diameter & Thickness ： 1～300mm
Square quartz glass piece Length range: 10mm-800mm; width range thickness 1-100mm
Note: Product specifications can be customized and processed according to customer drawings and customer needs.
Please send your inquiry to "sales@mdlmaterials.com" with below details :
1. Size : Round quartz plate -- diameter / thickness
Rectangle quartz plate -- length / width / thickness
2.Tolerance of the dimension
3. Polishing side : no polishing / one side polished / two sides polished
4. Quantity
