针对液化石油气钢瓶存在的缺陷问题,进行研究分析,找到了造成钢瓶出现缺陷的因素。在对缺陷进行整理分析后得到了四大类报废钢瓶缺陷:钢瓶护罩、底座损坏;钢瓶表面存在缺陷;焊接接头存在缺陷;阀座及螺纹损伤,并且分析了导致出现这些隐患的原因,最后提出了几条控制缺陷产生、降低报废率的措施。 Aiming at the defects of liquefied petroleum gas cylinders, the research and analysis were carried out to find out the factors which caused the defects of cylinders. After sorting and analyzing the defects, four major types of discarding cylinder defects were obtained: the cylinder cover and the base were damaged; the surface of the cylinder was defective; the welding joint was defective; the valve seat and the thread were damaged; the reason of causing the hidden trouble was analyzed; finally Put forward several measures to control the defects and reduce the rejection rate.