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IMPROVING ANODE COVER MATERIAL QUALITY AT NORDURAL - QUALITY TOOLS AND MEASURES

机译：在核心质量工具和措施中提高阳极覆盖材料质量

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摘要

Anode cover material (ACM) composition and granulometry determines the properties of the anode cover. This paper describes the experience Nordural has had with a new ACM mixing station employing autogeneous milling and pressure vessel conveying of the material to the potrooms. The pros and cons of this system for delivering the required granulometry is discussed by showing the evolution of the ACM granulometry before and after the commissioning of the new mixing station. To evaluate the effect of the conveying system the granulometry of the material at the output of the mixing station is compared with the granulometry of the material on the anodes. The automated XRD/XRF method for bath analysis has also been used for evaluating the alumina- and chiolite composition of the ACM which can impact the bath mass balance and structural stability. Finally, heat flux data is shown as one measure of quality.
机译：阳极覆盖材料（ACM）组成和粒度测定确定阳极盖的性质。本文介绍了与采用自动铣削和压力容器将材料输送到厕所的新型ACM混合站的经验。通过显示新混合站之前和之后的ACM粒度测定法的演变，讨论了该系统的优点和索端。为了评估输送系统的效果，将混合站输出处的材料的粒度与阳极上的材料的粒度进行比较。用于浴室分析的自动XRD / XRF方法也用于评估ACM的氧化铝和胆碱组合物，其可以影响浴体平衡和结构稳定性。最后，热通量数据显示为质量的一个度量。

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