水泥制品一旦成型凝固以后,产品的形状和质量就基本确定,遇有不合格的产品,无论采取何种办法补救,都收效甚微。因此,水泥制品的质量检验工作,具有强烈的时间性。用“倒序监督、流水记录、循环检查”这十二个字管理生产,对降低制品的废次品率有一定的作用。十二个字中以“倒序监督”最为重要。从原材料的购进,到产成品的出厂,一律由下一道工序监督上一道工序的加工质量,对于上一道工序的不符合质量和工艺要求 Once the cement products are solidified, the shape and quality of the products are basically determined. In case of unqualified products, no matter what measures are taken to remedy them, they will have little effect. Therefore, the quality inspection of cement products has strong timeliness. The use of “reverse supervision, flow recording, and cycle inspection” to manage production has a certain effect on reducing the rate of defective products. Among the twelve words, “reverse supervision” is the most important. From the purchase of raw materials to the delivery of finished products, the processing quality of the previous process shall be supervised by the next process. For the previous process, the quality and process requirements are not met.