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首页> 外文期刊>Leonardo Electronic Journal of Practices and Technologies >Study of carbon and silicon loss through oxidation in cast iron base metal using rotary furnace for melting
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Study of carbon and silicon loss through oxidation in cast iron base metal using rotary furnace for melting

机译：用旋转炉熔炼铸铁基金属的氧化碳和硅损失的研究。

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The projection of loss of carbon and silicon through oxidation is uncertain phenomenon depending on the furnace used for melting, which affect the carbon equivalent value (CEV) of cast iron produced. CEV enhances the fluidity of molten metal as well as having great effects on the mechanical properties of cast products. Study on the way elemental loss takes place during melting with rotary furnace will give idea of approach to minimize the loss. Therefore, the aim of this work is to study the magnitude of the elemental loss with rotary furnace and means to minimize the loss. 60kg of grey cast iron scrap was charged into rotary furnace of 100kg capacity after preheating the furnace for 40 minutes. Graphite and ferrosilicon was added to the charge in order to obtain a theoretical composition of not less than 4.0% carbon and 2.0% silicon. Charges in the furnace were heated to obtain molten metal which was tapped at 1400°C. Tapping was done for casting at three different times. The castings solidified in sand mould and allowed to cool to room temperature in the mould. Castings were denoted as sample 1, 2 and 3. Final compositions of each casting were analyzed with optical light emission spectrometer. Sample 1 has 2.95% carbon and 1.82% silicon. Sample 2 has 2.88% carbon and 1.70% silicon and sample 3 has 2.75% carbon and 1.63% silicon.
机译：取决于熔化所用的熔炉，通过氧化损失的碳和硅的预测是不确定的现象，这会影响所生产铸铁的碳当量值（CEV）。 CEV增强了熔融金属的流动性，并且对铸造产品的机械性能产生了很大影响。对旋转炉熔化过程中元素损失的发生方式的研究将提供使损失最小化的方法思想。因此，这项工作的目的是研究旋转炉中元素损失的幅度以及使损失最小化的手段。预热40分钟后，将60kg灰口铸铁废料装入100kg容量的旋转炉中。为了获得不小于4.0％的碳和2.0％的硅的理论组成，将石墨和硅铁添加到装料中。加热炉中的装料以获得在1400℃下出铁的熔融金属。在三个不同的时间进行了攻丝。铸件在砂模中固化，然后在模具中冷却至室温。铸件表示为样品1、2和3。每个铸件的最终组成用光学发光光谱仪分析。样品1具有2.95％的碳和1.82％的硅。样品2具有2.88％的碳和1.70％的硅，而样品3具有2.75％的碳和1.63％的硅。

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