目的 针对郑州 X 制罐厂方便桶自动生产线故障多的现象，分别从缝焊机、组合机、烘箱等环节实施改进，解决其废品率高的问题。方法 首先通过现场拍照取证的方式对故障现象进行描述，其次分析故障发生的原因及危害，然后和相关技术人员进行深刻探讨，最后通过查阅相关资料，对每个故障环节提出具体的改进措施，并将其应用于方便桶自动生产线。结果 该生产线在实施相应改进措施后，工废废品率从 0.464%降至 0.129%，为制罐业的方便桶自动生产线改善提供依据。结论 制罐过程中存在的问题多源自缝焊机、组合机、烘箱等环节，企业应多从这几方面进行严格控制，采取相应的改善措施，达到降低废品率的目的。

The work aims to make improvements from the seam welding machine, combination machine, oven and other links to solve the problem of high rejection rate regarding the phenomenon that the automatic production line of convenient buckets of Zhengzhou X canning factory has many faults. Firstly, the phenomenon of failure was described by means of on-site photo forensics; secondly, the causes and hazards of the failure were analyzed; then, the relevant technicians conducted in-deep discussion, and finally the specific improvement measures were proposed for each failure link by consulting the relevant materials. It was applied to automatic production line of convenient bucket. After the corresponding improvement measures were implemented in the production line, the rate of industrial waste was reduced from 0.464% to 0.129%, providing a basis for the improvement of automatic production lines of convenient buckets in the canning industry. The problems in the canning process are mostly caused by seam welding machines, combination machines, ovens, etc. Enterprises should strictly control these aspects and adopt corresponding improvement measures to reduce the rejection rate.