The undensified silica fume is produced by the condensation of gas and dust released by metal silicon at high temperature. It has the characteristics of large specific surface, high activity and strong micro aggregate. Because of its low accumulation density, about 200 kilograms per cubic meter, the volume of densified silica fume is larger than […]
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According to different application, Henan Superior Abrasives supply different grade microsilica /silica fume. Henan Superior Abrasives white silica fume is applied to the compound fertilizer, pesticide (as adsorbent, or producting silicon fertilizer), coating, paint (as a thickener, anti-sinking agent), rubber (as reinforcing agent), plastic (as the filling agent), special porcelain, can substitute the white carbon
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It is widely used in high performance refractory castables, silicon nitride sintering aids, ladle materials, self flow refractory castables, prefabricated parts, low or no cement castables and dry wet spraying materials, with high quality micro silica fume with ultra-fine particle size, low water storage and high fluidity. The specific performance and effect: can binder as
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Silicon Smelting To understand silica fume, it becomes inevitable to first understand the smelting of silicon metal. Silicon is smelted in large submerged arc electric furnaces. A typical 20 MW furnace might be as large as 40 feet in diameter and 15 feet deep. There are 3 electrodes, which could be up to 60 inches
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85% Undensified Silica Fume Chemical Component Element Specification Value SiO2: % 85min 88.1 Cl: % 0.1max 0.013 H2O: % 2.0max 0.98 92% Undensified Silica Fume Properties Specification Value Loss on Ignition% 6 max 2.25 Coarse particles > 45um % 10.0max 1.8 Bulk density:kg/m3 190-280 230 Specific Surface Area: m2/gm 15-30 19 Specific Gravity 2.0-2.5 2.2
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85 Grade densified silica fume 92% Densified Silica Fume Bulk density: 630-680 kg/m³ 94% Densified Silica Fume Phisical data: Properties Spec Typical value Loss on Ignition% 6 max 2.4 Coarse particles > 45um % 10.0max 2.8 PH- Value 6-8 7 Bulk density:kg/m3 500-700 680 Typical value is just for reference. Packaging & Delivery
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Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and woodchips. The smoke that results from furnace operation is collected and sold as silica fume, silica fume consists primarily of amorphous(non-crystalline) silicon
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Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and woodchips. The smoke that results from furnace operation is collected and sold as silica fume, silica fume consists primarily of amorphous(non-crystalline) silicon
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silica fume is harmful to lung, easy scald, the operation must not explode easily when furnace! If mix into arsenic that is poisonous, arsenic! Body dropsy, hair whiten, complexion is hoar, toxic even death Silica fume [the exterior and character] : Black Brown amorphous metalloid powder or hard and the crystal of luster. [main use]
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Micro-silica fume is a by product of high purity quartz, coke and sawdust reduction in the production of ferrosilicon or metallic silicon during the production of complex reactions in smelting. Among them, the quartz stone and carbon at 1750 ℃, the reduction reaction to produce unstable carbon monoxide, the temperature is higher than 2160 ℃,
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