Corundum

We Produce Various Color Synthetic Sapphires (corundum). Below Are Our Current Products, You Can Click On Them For More Details. If These Colors Still Do Not Meet Your Demand, We Can Produce Synthetic Sapphire With Custom Color Of Your Choice, Feel Free To Contact Us.

1.Production introduction White fused corundum is made with an electric furnace from high-grade alumina powder as raw material. The resulting mineral has higher hardness and slightly lower toughness than brown fused aluminum oxide. Characterized by its high purity, strong grinding ability, abrasive tools made of it are suitable for grinding and polishing of cutting tools, precision-castings, spraying and coasting, medium body for chemical industry applications, special ceramics and high-grade refractory materials. Detailed specifications can be supplied on request. 4.Performance and advantages 1. Not affecting the color of the processing cases 2. Sandblasting in the non-iron process 3. Powder level ideal for wet blasting and light lapping 4. High speed process and quality 5. Containing a very low amount of iron oxide, suitable for non-ferrous blasting operations 6. After acid washing steps 25kg small bag, 40 bags in one big bag.

White fused aluminadescription White fused aluminum oxide is electrically fused in the furnace with high-grade alumina powder as raw materials. It has higher hardness and slightly lower toughness than brown fused aluminum oxide, characte-rized by its high purity, strong grinding ability. Abrasive tools made of it are suitable for grinding highspeed steel, high carton steel, etc. It also can used as materials for grinding and polishing precision-casting, spraying and coating, medium body for chemical industry, special ceramics and high-grade refractory materials, etc. Company introduction Our company was established in 1976, is a famous manufacturer of abrasive powder in china. Our company supply types of abrasive, including black silicon carbide, white fused aluminum oxide. The specification and f, p, jis standard graded powder is available on request. Otherwise, our company own¡¯s the laboratory. Our abrasive sell well in china and through-out the world. Product character Chemical analysis and grain size distribution Grit sizeF280F1000Ji 1). Chemical analysis (%) Na2o0.2max0.2max0.16max0.2max Fe2o30.07max0.07max0.06max0.07max Al2o399%min99%min99%min99%min Sio20.1max0.11max0.13max0.1max 2). Grain size distribution (um) Gb/t2481.2-1998&iso8486-2:1996&jis r6001-1987 Ds360.022.63524 Ds5039 White fused alumina standard Size Standard is r6001-1987. White fused aluminaapplication Sand blasting, coarse grinding, boned abrasive tools Polishing, lapping, wire sawing Refractory material White fused aluminapackage 1. 25kg bags + 1ton bag 2. 25kg bags + 1ton pallet 3. As customer's requirement 1.25kg bags +1 ton bag 2.25kg bags +1 ton pallet 3.As customer's requirement

Product description White corundum is made of high quality aluminum oxide powder as raw material, refined and crystallized by electric melting. It has high purity, good self-sharpening, acid and alkali corrosion resistance, high temperature resistance and stable thermal performance. Its hardness is slightly higher than that of brown corundum.It is suitable for grinding fine grain abrasive such as high carbon steel, high speed steel and stainless steel. chemical component Physical characteristics size AL2O3 8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220# 240# â?¥99.5% 0-1mm 1-3mm 3-5mm 5-8mm â?¥99.5% 100#-0 200#-0 320#-0 â?¥99% FEPA:F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 JIS:#240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000 #6000 #8000 â?¥99.2%

Properties and advantages of white fused alumina 1, does not affect the color of the processed parts; 2, can be prohibited in the process of using iron powder residue to sand blasting; 3, micro powder grade is very suitable for wet sand blasting and polishing operation; 4, fast processing speed, high quality; 5, the amount of iron oxide is extremely low suitable for the sand blasting operation is strictly prohibited; Physical and chemical index Chemical index Physical index Al2O3 More than 95% Knoop hardness 2000-2200Kg/mm2 Fe2O3 Less than or equal to 0.4% Mohs hardness Nine Na2O Less than or equal to 0.22% Bulk density 1.53-1.99g/cm3 SiO2 Less than or equal to 0.04% True density 3.9-4.9g/cm3 White corundum purpose 1, can be used in all kinds of sand blasting and polishing (Lapping) operation; 2, Boli or acrylic crafts aesthetic feeling of atomization processing; 3, the TV screen in the process of blasting; 4, the silicon wafer cutting; 5, tooth mold cleaning sand blasting; 6, precision casting sand; 7, advanced refractories and other ceramic additives. The removal of 8, electronic parts, core flash, eliminate processing White corundum application field White corundum abrasives are suitable for all kinds of high-end product, process or beautify processing, hardware and other products surface after sand blasting surface clean without any impurities, cleaning trouble. Fine white corundum can be used for polishing. White corundum used as additive in various products. White corundum as a solid and coated with abrasive, wet or dry, or spray sand, suitable for crystal, ultra precision grinding and polishing in electronics industry and making high-grade refractory materials, etc. White corundum is suitable for machining hardened steel, alloy steel, high speed steel, high carbon steel hardness is harder, such as tensile strength of the larger materials. White corundum used as touch media, insulator and precision casting sand, etc. White corundum used for iron artifacts to rust, dirt, scale, increasing the coating, coating adhesion; White corundum used in aluminum workpiece to scale, surface strengthening, finishing effect; White jade for the bronze artifacts to skin inferior smooth effect, glass crystal frosted plastic, engraved designs, inferior smooth effect, special fabrics such as denim fluffy effect of processing and design.

Black corundum performance Black corundum and low aluminum corundum, blue corundum, is in electric arc furnace, the bauxite made by melting a AL2O3 spinel is given priority to with iron ore phase of the colored crystals, its characteristic is AL2O3 content is lower, and has a certain amount of Fe2O3 (10%), and therefore, moderate hardness and great toughness, self-sharpening, good bonding, high durability, produce less heat when grinding, high temperature resistant, not easy to scratch the surface of the workpiece surface roughness is high. Black corundum and low aluminum corundum, blue corundum, is in electric arc furnace, the bauxite made by melting a AL2O3 spinel is given priority to with iron ore phase of the colored crystals, its characteristic is AL2O3 content is lower, and has a certain amount of Fe2O3 (10%), and therefore, moderate hardness and great toughness, self-sharpening, good bonding, high durability, produce less heat when grinding, high temperature resistant, not easy to scratch the surface of the workpiece surface roughness is high. Hei Gangyu use 1, free grinding, such as metal parts electroplating before the bottom polishing, aluminum products. 2, bicycles, motorcycles, sewing machines, watches and clocks parts. Polished 3, lighting, plastic and hardware tools, and is also suitable for sand (rust, glass flower). 4, material processing, manufacturing resin cutting blade, angle grinding and coated abrasives. 5, black corundum sand granularity and powder is particularly suitable for grinding and polishing stainless steel workpieces and oilstone, grinding paste. 6, black corundum section of sand is the preferred material for non slip road and coal pit storage. Matters needing attention: 1, transport and handling: in the transport process, not drag hook, should prevent mixed with the solid material, strong vibration, friction, hit, hit, forbid throwing should be lightly armed light discharge to reduce black corundum breakage of packing, the impact of the use. 2, storage: should be stored in a cool and dry place, to prevent internal and external packaging bag break, prevent moisture and adsorption of other substances in the air, affect the use effect. It is strictly prohibited to mix with poisonous and harmful gas or volatile matter, and keep away from the source of pollution.

Black fused alumina, also known as black aluminum oxide, is a type of abrasive material that is commonly used in various industrial applications. It is made from the high-quality bauxite ore by fusing it in an electric arc furnace at high temperatures. During this process, the aluminum oxide content in the bauxite is reduced, resulting in a material that is predominantly composed of aluminum oxide and iron oxide. *Color and Appearance: As the name suggests, black fused alumina is black in color. It has a matte appearance and a high hardness. *Hardness: Black fused alumina is known for its high hardness, making it suitable for abrasive applications. It is often used for cutting, grinding, and polishing metals, ceramics, and other materials. *Abrasive Properties: It is an abrasive material with excellent cutting and grinding properties. It is used in applications such as sandblasting, grinding wheels, abrasive belts, and abrasive powders. *Strength and Durability: It has good strength and durability, making it a reliable choice for applications where wear resistance is essential. *Chemical Composition: Black fused alumina typically contains aluminum oxide (Al2O3) as the primary component, along with iron oxide (Fe2O3) and small amounts of other impurities. Applications: Grinding and Polishing: Surface Preparation: Cutting: Refractory Industry: Abrasive Blasting: Lapping and Polishing: Cutting Tools: Refractory Castables: Abrasive Powders and Compounds: Tumbling and Deburring:

Abrasive ruby corundum is made of 94% alumina as the main raw material., after smelting at high temperature. Its hardness is similar to white corundum and its toughness is higher than that of white corundum. The abrasive tools made by it have good durability and high finish. It is suitable for precision grinding of gauge, instrument parts, thread workpiece and sample mill

Chrome corundum brick is alumina - chrome oxide as the main raw material production of high-performance chrome corundum brick, has the characteristics of high refractoriness, great strength, good thermal shock stability, strong ability to resist erosion. Chromium corundum brick raw material is used by the ratio of alumina and chromium oxide according to certain proportion, go through high temperature melting synthesis of a solid solution. Using special refractory production technology made of refractory brick, can improve internal quality of the product, improve the high temperature performance of products. Feature 1.The refractory properties of chrome corundum brick In high purity corundum material add Cr2O3, no matter how much the amount, not only will not reduce the fire performance of materials can make refractory performance of material improved. 2.The strength of chrome corundum brick. The products in the process of burning, between particles and fine powder, between powder and powder are formed Al2O3 - Cr2O3 solid solution, calcium solid solution like bridge connect fine powder with particles together, make the strength of the material is greatly increased. 3.Thermal shock resistance Add Cr2O3 in corundum, when Cr2O3 content is 10% ~ 66%, material of thermal shock resistance decreased with increasing content of Cr2O3, namely the Cr2O3 content low chrome corundum brick, the thermal shock stability is better than Cr2O3 content high chrome corundum brick.