钢桶两端的卷边,在钢桶中起着把桶身和桶盖及桶底卷合在一起的作用,并起着加强钢桶强度,以及防止卷边渗漏的作用.钢桶质量的优劣,除了焊缝质量的优质外,最主要就取决于钢桶卷边的质量.钢桶卷边的质量好,钢桶在贮藏和运输石油产品,染料及化工溶剂过程中,如产生碰撞与跌落时,只会使钢桶的卷边产生凹瘪,而不会产生断裂和渗漏等现象. The curling at both ends of the steel drum plays the role of the barrel body and the barrel cover and the bottom of the barrel being coiled together, and plays the role of strengthening the strength of the steel barrel and preventing the curling leakage. Advantages and disadvantages, in addition to the quality of the weld quality, the most important depends on the quality of steel barrel curling. Steel barrel curling of good quality, steel drum in the storage and transportation of petroleum products, dyes and chemical solvents in the process, such as collision And drop, it will only make the buckling of the steel barrel concave depression, without rupture and leakage and so on.