Coltan, and mineral.
Ceramic Foundry Sand with the high quality bauxite as the raw material, blowing into the ball after remelting smelting, is a new type of steel casting foundry sand.It s characteristic as high temperature resistant,small amount of thermal expansion, easy collapse, good renewable performance,good casting properties, received the recognition from the cast made experts domestic and overseas. Widely used in all kinds of casting method,sand casting, special casting( casting, solid type, evaporative pattern casting, ladle flow guiding sand and so on ).Also used for shot peening, low expansion of high-temperature coated sand producing. 200mesh-270mesh used for evanescent mode coating producing. Adding 10-35% can effectively increase the air permeability, and suitable for useing all kinds of casting binder.It has been used by numerous domestic and international cast iron and nonferrous metal casting production factories. Ceramic Foundry Sand Technical Specification: 2.GRain Shape: Ball 3.Colour: Brownish black 4.Density: 1.95-2.05 ( g/cm3) 5.Refractory temperature:1850 6.Thermal expansion Rate:0.13% 7.Size: 10-20mesh 20-30mesh 30-40mesh 40-70mesh 100-140mesh 170mesh
Brown fused alumina melt film precision casting sand is based on the production of the brown fused alumina and with special technology, it is produced by the careful organization of the researchers. The quality has reached the advanced level of similar foreign products through laboratory tests and production in practice of dozens of casting enterprises. And some performances of it can be adjusted or showcased according to the customers requirement. The precision casting sand with high refractoriness, low thermal expansion coefficient, good thermal stability, strong air permeability, high intensity, easy to shell, high casting finish.It can substitute Zirconia sand (powder) its price is only half of zirconia sand (powder), and the recovery ratio is high as well. It can be mainly applied to the melt films and silicasol technology of jewelry, handicrafts, stainless steel products, watches, glasses, aluminum die casting industries, and can be processed in line with the demands of the clients.
Tabular Alumina, with the purity, do not add any additives, and firing contraction completely finished sintered alumina, alumina powder as raw material, after fine grinding, molding, drying, for ultra high temperature furnace with the temperature below the melting point of corundum, quick heat cooling fast under the condition of burning, to form a number of closely with columnar crystal, with high purity,high melting point, grains high hardness, heat load of high strength, low shrinkage, high density and low permeability, good wear resistance, good thermal shock stability etc. Tabular Alumina Usage Specification Chemical composition Bulk Density gcm3 Apparent Porosity Al2O3 Na2O Fe2O3 SiO2 Refractory Size 0 1mm 1-3mm 3-5mm 5-8mm 99.0 0.35 0.2 0.2 3.5 5.0 Fine 200 0 325 0 98.5
Quartz is a chemical compound consisting of one part silicon and two parts oxygen. It is the most abundant mineral found at Earths surface and its unique properties make it one of the most useful natural substances.Quartz is the second most common mineral in the Earths continental crust. It is made up of a lattice of silica. Its usefulness can be linked to its physical and chemical properties. It is chemically inert in contact with most substances. It has electrical properties and heat resistance that make it valuable in electronic products. Its luster, color and diaphaneity make it useful as a gemstone and also in the making of glass. This makes it a very essential mineral in our daily life.
Super white colour Pure quartz powder with silica percentage 98 to 99. Available from100 mesh to 300 mesh as per customer requirement
Quartz Grains as per customer's specification
Quartzite Ramming Mass made from fresh quartzite with high heat bearing capacity containing silica 99%
High quality quartz lump white colored and silica content 98.5 to 99%
Quartz compound consists of one part silicon and two parts oxygen i.e. Silicon dioxide (SiO2). The atoms are linked in a continuous SiO4 Silicon. Oxygen Tetrahedral framework. Quartz exists in two forms, the normal + -quartz, and the high-temperature quartz, both of which are chiral. Pure quartz, traditionally called rock crystal or clear quartz, is colorless and transparent or translucent and has often been used for hardstone carvings. Common colored varieties include Citrine, Rose Quartz, Amethyst, Smoky Quartz, Milky Quartz, and others. These color differentiation arise from chromophores which have been incorporated into the crystal structure of the mineral. The above prices are for FOR. Contact us for competitive prices as per your requirement.
Zero Order Waveplate The zero order waveplate is designed to give a retardance of zero full waves, plus the desired fraction. Zero order waveplate shows better performance than low/multiple order waveplates. It has broad bandwidth and a lower sensitivity to temperature and wavelength changes. It should be considered for more critical applications. It is constructed of two low order waveplates with their axes crossed. Thus,the effect of the first plate is canceled by the second,except for the residual difference between them. There are normally three different structures as follows, Optical Contact Cemented by Epoxy Air spaced Low Order Waveplate Low(multiple) order waveplate is designed to give a retardance of several full waves, plus the desired fraction. This result in a single, physically robust component with desired performance. However, even small changed in wavelength or temperature will result in significant changes in the desired fractional retardance. They are less expensive and find use in many applicatios where the increased sensitivities are not an important. Photonchinas waveplates fabrication starts from quartz materials cutting with their axes oriented within a few arcminutes before being polished to a laser-quality finish, arcsecond parallelism, and
Product Description : colorless transparent solid Price of product ( USD price or FOB price) : 286~428 Product origin : Donghai, Jiangsu, China Key Specifications/Special Features : SiO2 ?99.90%-99.99% Fe2O3:6.6PPM max Li: 1.0PPM Al2O3:30 PPM max Na:11PPM max PH:5.86 Minimum Order Size and Packgaing details : 1T
Product Description : colorless transparent particles Price of product ( USD price or FOB price) : 428~571 Product origin : Donghai, Jiangsu, China Key Specifications/Special Features : SiO2 99.90%-99.99% Fe2O3: 7PPM max Li: 1.0PPM Al2O 3:30 PPM max Na:11PPM max PH:5.8
Price of product ( USD price or FOB price) : 70 - 115 Product origin : Donghai, Jiangsu, China Key Specifications/Special Features : Superfine: SiO2 99.99% min 1st Grade: SiO2 99.98% min Fe2O3: 0.004% max 2nd Grade: SiO2 99.97% min Fe2O3: 0.008% max 3rd Grade: SiO2 99.99% min Fe2O3: 0.03% max
Product Description : The design can be made by the customer's requirements Price of product ( USD price or FOB price) : depend on quality Product origin : Donghai, Jiangsu, China Key Specifications/Special Features : SiO2>99.99% Fe2O3:
1200 tube furnace uses high-quality electric furnace wire as heating element, the maximum heating temperature is 1200, and the diameter of the quartz furnace tube is 50mm. If the customer needs, can contact the technician to customize the larger diameter furnace tube. The default heating zone is single temperature zone. It can also be customized according to customer needs. The temperature zone is controlled by the precision temperature control meter for PID temperature control. The 30-segment temperature rise and fall program can be edited, and the overheating and open circuit of thermocouple protection functions are also available. The flanges on both sides of the furnace tube are equipped with a digital vacuum gauge and a mechanical pressure gauge, which can be used to control the atmosphere in the furnace tube. At the same time, the tube furnace is operated by HD true color touch screen, which is easy to use. Even non-professionals can master the use of the instrument after simple training, which can greatly improve your experiment efficiency. 1200 tube furnace application range Tube furnaces are mainly used in metallurgy, glass, heat treatment, lithium battery positive and negative materials, new energy, abrasives and other industries, and can also be used for heat treatment in atmospheric environment. It can also be used to form a CVD system for related coating test production.
i)No.6DustedLoose ii)No.6DustedLoosespecial(ClearMica) iii)No.6-1stmicasplittings iv)No.6-2ndmicasplittings v)No.4-1stBOOKFORMMicasplittings
Natural mica is best known for its exceptional strength and durability. We have been supplying it to our clients for many years now
)RS-MF1031100.63OD*0.36ID*0.032"THK ii)RS-MF1031090.63OD*0.25ID*0.060"THK iii)RS-10313944.32*17.52*0.81MMAHOval iv)RS-10314438.35*17.78*1.52MMPHILLIPS&TEMRO v)RS-W1030690.75OD*0.25ID*0.060"THK vi)RS-1031440.562OD*0.250ID*0.81MM vii)RS-W1030940.75OD*0.25ID*0.032"THK viii)RS-W10311119.05*9.14*1.52MM ix)RS-W10310119.05*9.14*0.81MM
i)No.6DustedLoose ii)No.6DustedLoosespecial(ClearMica) iii)No.6-1stmicasplittings iv)No.6-2ndmicasplittings v)No.4-1stBOOKFORMMicasplittings
