CIPDB › China Industry › Metallurgy, Mineral & Energy › Nonmetallic Minerals
Fused Silica/Fused Quartz/Fused Silica Glass/Optical Glass1
Nonmetallic MineralsFused SilicaFused Silica Glass
Shanghai Rui Tai Photoelectric Technology Co., Ltd.
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Product Description General Introduction:Raytek fused silica is an ultra-pure, amorphous form of glass that is made from high purity silica. Typically, the concentration of silica is greater than 99.9999% with miniscule quantities of other metal oxides. Due to its extremely high purity, it finds many applications in optical windows, optical components for UV transmission, IR optics (with OH- ions removed), semiconductors, metrology and more. Raytek is committed to providing high quality fused quartz. According to the content of hydroxyl (OH), fused quartz can be divided into high hydroxyl, medium hydroxyl and low hydroxyl.The characteristics of fused silica products include: extremely low refractive index change, resulting in the highest level of homogeneity; The birefringence is very low; Large size; Excellent transmittance from UV to IR; And ultra-low coefficient of thermal expansion; All of these features are critical to meeting the demanding requirements of customers.Main Characteristics:A number of unique optical, mechanical and thermal properties have made quartz glass an indispensable material in the fabrication of high-tech products. they have the follwing main characters:1).High chemical purity and resistance,2).High softening temperature and thermal resistance,3).Low thermal expansion with high resistance to thermal shocks,4).High transparency from the ultraviolet to the infrared spectral range,5).High radiation resistance.6).The change of refractive index is very low;7).High level of homogeneity;8).The birefringence is very low;9).Large size available;10).Excellent transmittance from UV to IR;11).Ultra low coefficient of thermal expansion;12).Low costRaytek Fused Silica Types:ModelHydroxyl (OH) contentFS800OH≥800ppmFS200OH≤200ppmFS20OH≤20ppmFS1OH≤1ppmThermal Properties: ModelFS800FS200FS20ViscositySoftening point*1585°C1627°C1627°C107.6 poise.Annealing point*1042°C1180°C1180°C1013 poise.Strain point*893°C1068°C1068°C1014.5 poise.Specific heat0.770 J/(g K)Thermal Conductivity1.38 W/(m K)Thermal diffusivity0.0075 cm2/sCoefficient of thermal expansion* * (ppm / C)5°C~35°C0.52 x 10-60°C~200°C0.57 x 10-6-100°C~ +200°C0.48 x 10-6ASTM PROGRAMM * C-598, * * E-228Mechanical Properties:All values are within 25 unless otherwise specified °CYoung's modulus of elasticity73 GPaShear modulus31 GPaModulus of rupture/ wear52.4 MPaBulk modulus of elasticity35.9GPaPoisson's ratio0.16Density2.20 g/cm3Knoop Hardness (100g load)522 kg/mm2Tensile strength54 MPaCompressive strength1.14 GPaOptical Properties: Take FS200 Oh < 200ppm as an exampleMeasuring Accuracy:±1x10-6Wavelength(nm)Refractive index n(25°C)Refractive index n(20°C)Refractive index n(20°C,dn/dt)365.015 ni1.4747101.47465511.3404.656 nh1.4697861.46973111.0435.835 ng1.4668601.46680710.7486.133 nF1.4632931.46324010.5546.075 ne1.4602451.46019410.2587.562 nd1.4586311.45858010.3656.273 nC1.4565351.45648410.1Matching Custom Manufacturing Serivce:Including Moulding, CNC machining, Polishing, Particle beam processing, Magnetic flux conversion processing, Grinding, Coating, Lightweighting, Custom Shaping, Counterbores, Drilling & Coring, Edge & Bevel Polishing,3D Contouring, Bevels & Chamfers, Steps & Slots, Laser Cutting & Marking, Metrology & Inspection, Precision Pitch Polishing, Double-Sided Polishing, Optical Assembly, Measuring, etc.Matching processing equipments;1).Single side lapping and polishing machines2).Duble sided polishing machines3).Ring throwing machines4).DMG five-axis five-linkage spherical milling machine5).DMG ultrasonic machining center6).Super large scale gantry cnc machining center (2.0*2.0m)7).Super large scale surface grinder (1.6m*1.6m)8).CNC cutting machines9).Thin plate cleaning machines10).Ultrasonic trough cleaning machines11).Plane interferometers12).Two dimensional detectors13).Ion beam polishing machines14).Magnetorheological polishing equipmentsMain Cooperation Materials Manufacturers: CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETCMain Export Countries & Areas: Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.Raytekoptics Extra value added services offered:1). Optical workcraft & process solution design;2). Rough processing raw materials;3). Semi finishing raw materials;4). Fabricate custom sizes and shapes;5). Design and supply custom coatings;6). Modify and resurface customer supplied materials;7). Drill holes, notch glass and provide beveled substrates;8). Precision polish optics with non-standard aspect ratios;Payment Method: by T/T or Western Union.Delivery time: 7-10 days. Quality Warranty: Ruitaiphotoelectric(Raytekoptics) offers quality warranty for our optics products with "3R" policy--return, replace & refund policy. For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.
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