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The glass rock manufacturer introduces you how to remove other impurities from silicon carbide crystals

by:Spring Glass     2021-02-28
During the grinding process, the abrasive particles will gradually wear out and become rounded under the action of high speed, high pressure and high temperature. For round and blunt abrasive particles, the cutting ability decreases, and the force acting on the abrasive particles increases continuously. When this force exceeds the strength limit of the grinding wheel, the abrasive grains will be broken and new sharper edges and corners will be produced to replace the old round and blunt abrasive grains for grinding: if this force exceeds the bonding force of the grinding wheel bond, the round and blunt The abrasive material will fall off the surface of the grinding wheel, revealing a layer of fresh and sharp abrasive particles, and continue grinding. The self-innovation of the grinding wheel in order to maintain its own sharpness is called'self-sharpening'.   However, the grinding wheel will be blocked by cutting chips and broken abrasive grains, and the grinding wheel will fall off unevenly, which will make the grinding wheel lose its shape accuracy. Therefore, after a certain period of work, the grinding wheel still needs to be trimmed.  The self-sharpening effect of the grinding wheel is not available in other cutting tools. If the cutting edge of a general tool is blunt or damaged, the cutting cannot continue, and the tool must be changed or reground. However, due to the self-sharpening nature of the grinding wheel itself, the grinding wheel can always cut the workpiece with relatively sharp abrasive particles.  In actual production, this principle is sometimes used to carry out powerful continuous grinding, which can greatly reduce the production efficiency of the grinding process. Silicon carbide is also called moissanite. Among the non-oxide high-tech refractory materials such as C, N, and B, silicon carbide is the most widely used and most economical one. It can be called gold steel grit or refractory sand. The main uses are as follows: 1. Refractory materials and corrosion-resistant materials-mainly because silicon carbide has high melting point (decomposition temperature), chemical inertness and thermal vibration resistance, so silicon carbide can be used Sheds and saggers used in the firing of abrasive tools and ceramic products, silicon carbide bricks used in vertical cylinder distillation furnaces in the zinc smelting industry, aluminum electrolytic cell linings, crucibles, small pieces of furnace materials and other silicon carbide ceramic products . 2. Abrasives-mainly because silicon carbide has high hardness, chemical stability and certain toughness, so silicon carbide can be used to make fixed abrasive tools, coated abrasive tools and free grinding to process glass and ceramics , Stone, cast iron and some non-ferrous metals, cemented carbide, titanium alloy, high-speed steel cutting tools and grinding wheels.  3. Chemical applications-because silicon carbide can decompose in molten steel and react with free oxygen and metal oxides in molten steel to form carbon monoxide and silicon-containing slag. Therefore, it can be used as a purifying agent for smelting steel, that is, as a deoxidizer for steelmaking and a cast iron structure improver. Generally use low-purity silicon carbide to reduce costs. At the same time, it can also be used as a raw material for manufacturing silicon tetrachloride. Glass rock manufacturers, stained glass rocks, craft glass rocks, Qingdao stained glass rocks, natural glass rocks, stained glass rocks, Qingdao glass rocks, Qingdao craft glass rocks, Qingdao natural glass rocks, Qingdao stained glass rocks, Huizhou glass rocks, Zhongshan Glass Rock, Guangzhou Glass Rock Website:
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