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包装 · 海运 · 防护 · 锈点

不锈钢包装与海运防护:锈点多数是外部污染

不锈钢海运出现锈点,多数不是材料本身缺陷,而是碳钢污染、氯离子附着与冷凝水共同作用;包装隔离与干燥剂是关键。
海运环境高盐高湿,不锈钢表面若接触碳钢粉尘、铁屑或包装材料中的氯离子,容易形成点蚀与表面锈斑。 包装建议:1)避免与碳钢直接接触,垫木与包装材料应不含氯(控制氯离子含量);2)卷/板表面覆保护膜时注意胶层残留与排气;3)集装箱内放置干燥剂并记录数量与位置;4)装柜前检查箱体是否渗水、是否残留化肥/盐类货物。 到货检验:先区分表面附着锈与点蚀坑;附着锈可酸洗钝化去除,点蚀坑需评估深度与分布。合同中可约定运输防护与到货验收方法,减少争议。
Compiled by SteelWe editors and industry experts. For industry exchange only; not trading or investment advice. Cite the source when quoting.
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