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首页> 外文期刊>Light Metal Age >Improving The Corrosion Resistance of Low Cement Aluminum Silicate Refractory Castable in Contact with Molten Alloyed Aluminum
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Improving The Corrosion Resistance of Low Cement Aluminum Silicate Refractory Castable in Contact with Molten Alloyed Aluminum

机译：提高与熔融合金铝接触的低水泥硅酸铝耐火浇注料的耐蚀性

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摘要

The corrosive power of pure molten aluminum is so strong that even 100 percent alumina refractories are prone to wear to varying degrees by the liquid metal. Among the several classes of refractories, low cement aluminum silicate refractory castables have shown to be cost effective when applied to aluminum furnace linings. In this work, using a procedure similar to the Alcoa 72 hour cup test, 60wt percent Al_2O_3 low cement refractory castable containing small additions of either Al_2TiO_5 or BaAl_2Si_2O_8 was exposed to a molten aluminum alloy LG-6061, and corrosion resistance was evaluated. It was found that the addition of BaAl_2Si_2O_8 greatly improved corrosion resistance and lowered bath contamination when compared to Al_2TiO_5.
机译：纯铝熔液的腐蚀性很强，以至于即使100％的氧化铝耐火材料也容易受到液态金属的不同程度的磨损。在几类耐火材料中，低水泥硅酸铝耐火浇注料在应用于铝炉衬时已证明具有成本效益。在这项工作中，使用类似于美铝72小时杯试验的程序，将含有少量Al_2TiO_5或BaAl_2Si_2O_8的60wt％Al_2O_3低水泥耐火浇注料暴露于熔融铝合金LG-6061中，并评估了耐腐蚀性。发现与Al_2TiO_5相比，BaAl_2Si_2O_8的添加大大提高了耐腐蚀性并降低了镀液污染。

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