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减少和消灭废次品,是推行全面质量管理的重要任务之一。各类产品的质量特性,除具有共同的规律性外,还有其具体的特殊性,现试用排列图及特性要因图,对钢筋混凝土预制构件生产过程中产生的废次品进行分析,并提出提高产品质量的对策。一、用排列图法分析影响质量的主要因素我厂1981年1～3季度共出废次品259件(预应力空心板253件,非预应力6件)。其中强度未达到设计标号者129件,占49.8％;先张法预应力空心板混凝土强度未达到
Reducing and eliminating defective products is one of the important tasks of implementing total quality management. The quality characteristics of various types of products, in addition to their common regularity, also have their specificities. Now that the layout diagrams and characteristic factor maps are being tried out, the waste defectives produced in the production process of reinforced concrete precast components are analyzed and proposed. Measures to improve product quality. First, the main factors affecting the quality of the analysis of the layout diagram method I plant in 1981 1 to 3 quarters of a total of 259 defective waste (prestressed hollow plate 253, non-prestressed 6). 129 of which the strength did not reach the design number, accounting for 49.8%; the strength of the pre-tensioned prestressed hollow slab concrete did not reach