用全面质量管理方法解决自应力管承口“冒汗”问题

• 作 者: 陆伟民
• 机 构: 上海新型建筑材料厂,
• 出 处: 混凝土与水泥制品
• 发表日期: 1985年03期
• 关键词: 承口 自应力 管子 涂蜡 整模 全面质量管理 半模 口环 质量管理方法 砂眼

我厂制管工艺由两半模生产改为整模涂蜡工艺后,开始一年内,自应力管质量还是比较满意的,一次完好率在80％以上,合格率在96％以上,当时主要修补管子砂眼渗水。一年后管子完好率明显下降,最低达63.7％。原认为涂蜡工艺能解决的管子承口“冒汗”问题重又出现,而且又遇到插口环

After the production process of our factory was changed from the production of two mold halves to the whole mold waxing process, the quality of the self-stressing pipes was relatively satisfactory within one year. The rate of one good endurance was more than 80% and the qualification rate was over 96%. Pipe sand holes seepage. After one year, the tube intact rate decreased significantly, with the lowest rate reaching 63.7%. It was thought that the “sweat” problem of the pipe socket that can be solved by the waxing process reappeared and the socket loop was encountered again.