【摘要】 通过收集大量样本的水泥质量检测数据,用Excel计算出3d抗压强度及抗折强度的标准差和平均值,计算上下限,由此制作出水泥质量控制图。结合过程能力指数可以对生产质量起到有效的预控作用。更多还原

【Abstract】 By collecting quality test datas of enough cement samples,and with Excel programme to caculate the standard error and average value of the cement compression and bending strength of three days,and then caculate the high and low limit,then to design the cement quality control chart.With the process ability index,we can control the production quality effectively.更多还原