钢桶渗汕、漏汕是多年未解决的问题,自八0年起被列为外贸包装容器重点攻关的科研项目。从国内普遍反映和收集外商资料中得出,钢桶渗漏油的主要部位及比例:上下大圈(尤其在“丁”字口),占渗油数的70%;大小桶盖螺丝口,占25%;桶身上的焊缝(主要在环筋的凸起处),占5%。经破坏性试验与钢桶解剖,找出了上述 Steel barrels are not open to the world for many years and have been listed as research projects focusing on foreign trade in packaging containers since 1980. From the general reflection and collection of foreign data, the main parts and proportions of oil leakage from steel drums are as follows: upper and lower large circles (especially at the mouth of “Ding”) account for 70% of the total oil leakage; Accounting for 25%; barrel welds (mainly in the protruding ribs), accounting for 5%. After destructive experiments with steel drum anatomy, identified above