Silica quartz - Import export

Knight Optical can offer you stock and custom lambda/10 mirrors for use in imaging applications, in a range of materials such as BK7 or equivalent, Zerodur, Quartz, UV Fused Silica and many more. Mirrors are made from low expansion glass for optimum stability to maintain the lambda/10 flatness. The mirrors help produce high quality images and can be coated with a variety of coatings to ensure that the perfect quality image in the wavelength you require is achieved: •Enhanced aluminium 94%R for visible applications. •99.9% dielectric for laser use in visible applications. •UV aluminium for UV applications down to 180nm. •98.5% dielectric for laser use in the NIR applications. •Ion plated silver for NIR-2000nm applications. •Protected gold for 750nm to far infra-red applications Lambda/10 mirrors are used to produce a better quality signal from the mirror, resulting in a higher quality imaging. Read PDF for more information…

Knight Optical can offer you stock and custom lambda/10 mirrors for use in Spectromters, in a range of materials such as BK7 or equivalent, Zerodur, Quartz, UV Fused Silica and many more. Mirrors are made from low expansion glass for optimum stability to maintain the lambda/10 flatness. The mirrors help produce high quality signals and can be coated with a variety of coatings to ensure that the perfect quality image in the wavelength you require is achieved: •Enhanced aluminium 94%R for visible applications. •99.9% dielectric for laser use in visible applications. •UV aluminium for UV applications down to 180nm. •98.5% dielectric for laser use in the NIR applications. •Ion plated silver for NIR-2000nm applications. •Protected gold for 750nm to far infra-red applications Lambda/10 mirrors are used to produce a better quality signal from the mirror, resulting in a higher quality result for transmission. Read PDF for full spec

Knight Optical can offer you stock and custom mirrors Plane Mirrors (general, λ/1 and λ/4 for use in Spectromters, in a range of materials such as BK7 or equivalent, Quartz, UV Fused Silica and many more. These are customisable to size and coating depending on what you are trying to achieve. All individually QA checked and metrology tested for quality to ensure parts meet customer specification. Supplied in a range of sizes and shapes with custom coatings tailored to meet your individual applications. The mirrors help produce high quality signals and can be coated with a variety of coatings to ensure that the perfect quality image in the wavelength you require is achieved: Plane mirrors are used to transmit the signal from the light source to the receiver in the spectrometer, the higher the specifications of the mirror the better the signal for it to produce a better transmission or reflection curve that it relatively to the sample. For more information read PDF…

Knight Optical can offer you stock and custom lambda/10 mirrors for use in government testing for aerospace, in a range of materials such as BK7 or equivalent, Zerodur, Quartz, UV Fused Silica and many more. Mirrors are made from low expansion glass for optimum stability to maintain the lambda/10 flatness. The mirrors help produce high quality images and can be coated with a variety of coatings to ensure that the perfect quality image in the wavelength you require is achieved: Enhanced aluminium 94%R for visible applications. 99.9% dielectric for laser use in visible applications. UV aluminium for UV applications down to 180nm. 98.5% dielectric for laser use in the NIR applications. Ion plated silver for NIR-2000nm applications. Protected gold for 750nm to far infra-red applications λ/10 mirrors are used in the aerospace environment due to the vibration, temperatures & pressure through which they are exposed. To Find out More read the PDF

Knight Optical can supply you with custom made Diamond turned aspheric lenses for use within autonomous vehicle LiDAR systems. Autonomous vehicle LiDAR systems create driverless cars. Whereby the system produce autonomous vehicles which can perform complex manoeuvers and drive in public with little or no input from a user. Spherical aberration occurs in common singlet lenses, which results in an image that appears distorted, aspheric lenses correct spherical aberration. An aspheric lens surface is designed non-spherical, which allows a single component lens to collimate or focus highly divergent rays potentially replacing a multi-lens system. This in turn provides the LiDAR system with a better signal quality, at lower costs whilst making the system more compact. Knight Optical offers diamond turned aspherics from a range of suitable NIR materials for autonomous vehicle LiDAR including N-BK7 or equivalent, sapphire, quartz, UV fused silica, amongst others. SEE PDF

A quartz material / glass-encased, spiral-shaped, electrical heating coil with a large surface, which is mounted in a quartz material reflector shell with a handle, allows liquids to be heated indirectly by infrared radiation. This is used for the fast, economical evaporation or concentration of liquids. Due to this principle, only the surface of the liquid is heated very strongly, as the thermal radiation is absorbed even after shallow penetration, thus enabling gentle, uniform evaporation.In contrast to boiling evaporation, there is no loss of substance due to splashes from a moving boiling surface. Since surface evaporators are made exclusively from the material fused quartz / glass, it is possible to use the advantages of the material, such as good IR permeability, heat and heat change resistance, lowest electrical conductivity, exceptionally high chemical purity and resistance as a material. It complies with EC Directive 89/336 / EEC and EC Directive 73/23 / EEC.

Sodium Metasilicate Anhydrous is an inorganic substance, a stable chemical made of silicon, sodium and oxygen. This chemical is made with the melting of silica sand or quartz with sodium carbonate at high temperature to create glassy substances which are grind further into fine powder. Sodium Metasilicate Anhydrous must be kept in dry, cool and well ventilated places as it can react with acids and oxidizing substances etc., to produce heat and fumes. Sodium Metasilicate Anhydrous is mostly used as a builder, surfactant and corrosion inhibitor in various industrial applications. Sodium Metasilicate Anhydrous is used in a wide range of industrial chemicals such as detergent and in the cleaning industry as a cleaning agent and builder in laundry and dishwashing detergents. This chemical is also used in the construction industry to improve the strength and durability of cement and concrete compositions

Quartz, or fused silica, can be machined like any other ceramic material thanks to diamond tools. Thus Microcertec can realize customized parts made of quartz with various sizes and shapes, high level of precision but without any optical required performances or surface finish. The most important properties of the quartz is its low coefficient of thermal expansion. From an optical point of view, the quartz is generally transparent to the infra-red wavelenghts. Selection of materials Microcertec uses standard grades of quartz from well-known producers like GE or Heraeus. We machine both quartz standard quality as well as semiconductor and optical grade quartz. Properties From a general point of view, quartz shows : - good electrical insulation - very small coefficient of thermal expansion - good thermal insulation - good thermal resistance - transparence to the infra-reds - vaccum resistance Our typical applications Quartz is mainly used as : - electrical insulators - thermal...

Quartz, or fused silica, can be machined like any other ceramic material thanks to diamond tools. Thus Microcertec can realize customized parts made of quartz with various sizes and shapes, high level of precision but without any optical required performances or surface finish. The most important properties of the quartz is its low coefficient of thermal expansion. From an optical point of view, the quartz is generally transparent to the infra-red wavelenghts. Applications Quartz is mainly used for : electrical insulators thermal insulators structural parts Materials From a general point of view, quartz shows : good electrical insulation very small coefficient of thermal expansion good thermal insulation good thermal resistance transparence to the infra-reds vaccum resistance Download Precision machining of quartz (374.69 Ko)

Calacattas with sparkle! From our Low-silica quartz slab range manufactured in China. MOQ* - 1 FCL, full container load of 20mm slabs or 30mm slabs, 105 X 20mm slabs (7 bundles of 15 slabs) **20mm delivered to you yard for as low as GBP 420 per slab** based on minimum order quantity. Or 70 X 30mm slabs (7 bundles of 10 slabs) Or suitable mix of 20mm and 30mm bundles slabs 20mm or 30mm thickness, 3.2m X 1.6m / 5.12 SqM / 55.1 SqFt 3.5m X 2.0m also available up to 3* designs per order, subject to selection and point of origin *per container For full low-silica catalogue, please visit our website seranstone.com and follow the appropriate link for pdf catalogue download.

Calacattas with sparkle! From our Low-silica quartz slab range manufactured in China. MOQ* - 1 FCL, full container load of 20mm slabs or 30mm slabs, 105 X 20mm slabs (7 bundles of 15 slabs) **20mm delivered to you yard for as low as GBP 369 per slab** based on minimum order quantity. Or 70 X 30mm slabs (7 bundles of 10 slabs) Or suitable mix of 20mm and 30mm bundles slabs 20mm or 30mm thickness, 3.2m X 1.6m / 5.12 SqM / 55.1 SqFt 3.5m X 2.0m also available up to 3* designs per order, subject to selection and point of origin *per container For full low-silica catalogue, please visit our website seranstone.com and follow the appropriate link for pdf catalogue download.

Calacattas with sparkle! From our Low-silica quartz slab range manufactured in China. MOQ* - 1 FCL, full container load of 20mm slabs or 30mm slabs, 105 X 20mm slabs (7 bundles of 15 slabs) **20mm delivered to you yard for as low as GBP 420 per slab** based on minimum order quantity. Or 70 X 30mm slabs (7 bundles of 10 slabs) Or suitable mix of 20mm and 30mm bundles slabs 20mm or 30mm thickness, 3.2m X 1.6m / 5.12 SqM / 55.1 SqFt 3.5m X 2.0m also available up to 3* designs per order, subject to selection and point of origin *per container For full low-silica catalogue, please visit our website seranstone.com and follow the appropriate link for pdf catalogue download.

​Silica sand or quartz sand:Quartz particles (SiO2) with a size between 2.00 and 1.05 mm, formed as a result of disintegration of magmatic metamorphic rocks rich in quartz.

“GIR-INTERNATIONAL” LLC is the trade company and official representative of the CLOSED NON-DIVERSIFIED VENTURE CORPORATE INVESTMENT FUND «GENERAL INVESTMENT RESOURCES” - the owner of 4 refractory plants in Ukraine. Each of them specializes in the manufacturing of a specific refractories group. Chamotte (Alumina), High Alumina, Magnesia, Silica (Dinas), Fused quartz and other types of refractories. We produce and supply a wide range of the refractory products and materials for almost all industry sectors where high temperatures are applied, especially for cement industry. Our purpose is satisfying clients’ needs with products we produce. I would also like to bring to your attention that our products are as diverse as the requirements of our clients. Our company would like to know which products will be suitable for your needs and offer you an excellent and competitive price.