洁净钢冶炼用耐火材料中氧化钙含量的质量控制

Quality control of calcium oxide content in refractories for clean steel smelting

质量控制图作为一种被广泛证明行之有效的质量控制工具,开始逐渐被耐火材料企业所熟悉和运用。为了监测洁净钢冶炼用耐火材料生产过程中的氧化钙含量是否处于稳定的受控状态,通过对氧化钙含量的多次测定,建立均值-极差(X-R)控制图,经过分析和判断,将耐火材料的氧化钙含量稳定控制在技术指标所要求的范围之内。建立的耐火材料氧化钙含量均值-极差(X-R)控制图运用在耐火材料生产控制中起到很好的控制和预防作用。

Quality control chart,a widely proven effective quality control tool,has been gradually known and applied by refractories enterprises.To supervise whether the calcium oxide content of refractories for clean steel smelting was stably controlled during production,the calcium oxide content was determined for many times and the mean-range(X-R)control chart of calcium oxide content was established.The calcium oxide content of the refractories was stably controlled within the range of the required technical data through the analysis and judgment.The X-R control chart plays a good control and prevention role during the refractories production.