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Belt you know ductile casting - in a minute Ductile casting

by:XEX     2021-03-10
Ductile casting is a casting process, are made from rare earth magnesium nodulizing agent, cupola and grey are the same. Small make up take you to understand you'll understand ductile casting today. Specific operation is: place the metal piece on the bottom of the bag, covering iron filings ( Also can use thin steel plate) 。 When molten iron with the hot metal mixing with stirring holds a ( Acceleration response) Immediately on the hot metal with straw ash ( Reduce heat and oxidation) 。 At the end, when the ball reaction with sampling some amount of the molten iron, poured into the specimen type, water-cooled after solidification, broke, check section to determine degree of nodulizing. Meet the requirements, after the hot metal into ladle, casting. Metal melting into to meet the requirements of a certain liquid is poured into the mold, after cooling solidification, men get a predetermined shape, size and performance of the casting ( Parts or blank) The technological process. The foundation of modern machinery manufacturing industry technology. Blank casting production cost is low, for complex shape, especially the parts with complex inner cavity, more can show its economical efficiency; At the same time, it has a wide adaptability, and has better comprehensive mechanical properties. But the casting materials needed for production, Such as metal, wood, fuel, molding materials, etc. ) And equipment ( Such as metallurgical furnace, sand mixing machine, molding machine, core making machine, shakeout machine, shot blasting machine, etc. ) More, and can produce dust and harmful gas and noise and pollution of the environment. Second, casting principle: casting process can be divided into three basic parts, namely cast metal preparation, mold preparation, and casting processing. Casting metal refers to the casting of metal materials used for pouring castings in production, it is a kind of metal elements as the main components, and join other metal or nonmetal elements and composition of the alloy, traditionally known as the casting alloy, mainly has cast iron, cast steel and nonferrous alloy casting. Metal smelting is not only a pure melt, include smelting process, the metal poured into the mold, in terms of temperature, chemical composition and purity are expected requirements. Therefore, in the process of smelting are going to have to check the test and quality control for the purpose of all kinds of liquid metal in the provisions to rear can allow gating. Sometimes, in order to meet the higher requirements, in the introduction to the liquid metal processing outside the furnace, such as desulfurization, vacuum degassing, refining outside the furnace, pregnant or modification treatment, etc. Metal smelting of commonly used equipment cupola and electric arc furnace, induction furnace, resistance furnace, furnace, etc. That is about the detailed introduction of ductile casting, believe you see after also have a certain knowledge of ductile casting. Today small make up to you at this point, let's see you next time.
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