镀锡板表面形貌对奶粉罐成型耐磨性的影响

方圆; 齐韦; 万一群; 沈鹏杰; 陈艺敏; 张梅

doi:10.19554/j.cnki.1001-3563.2026.17.016

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包装工程（技术栏目） ›› 2026, Vol. 47 ›› Issue (17) : 145-154. DOI: 10.19554/j.cnki.1001-3563.2026.17.016

先进材料

镀锡板表面形貌对奶粉罐成型耐磨性的影响

方圆^1,2, 齐韦^3,*, 万一群², 沈鹏杰², 陈艺敏², 张梅⁴

作者信息 +

Effect of Tinplate Surface Morphology on Wear Resistance of Milk Powder Can Forming

FANG Yuan^1,2, QI Wei^3,*, WAN Yiqun², SHEN Pengjie², CHEN Yimin², ZHANG Mei⁴

Author information +

文章历史 +

摘要

目的奶粉罐用镀锡板在制罐翻边过程中出现了模具表面有锡痕残留、锡痕在模具与罐体之间相互转移等现象。为解决工作人员频繁擦拭模具、避免锡痕污染内容物等问题,本文研究了镀锡板表面形貌对奶粉罐成型耐磨性的影响。方法使用扫描电镜观察奶粉罐翻边位置的磨损形貌、使用X射线衍射仪测试模具表面残留的锡痕成分、使用Ansys软件模拟锡层受力而产生破损,使用摩擦试验机模拟翻边过程的摩擦磨损效果、使用电化学法测试不同表面形貌的镀锡板的掉锡率。结果翻边模具对镀锡量为2.8 g/m²的锡层磨损可使锡层断裂、锡层脱落并导致合金层裸露,镀锡板耐磨性不良问题本质上是锡层在基板与翻边模具之间的黏着磨损和磨粒磨损。通过调整镀锡基板表面形貌中的R_sk,使其增加为正值,可降低翻边滚珠与镀锡板之间的实际接触面积,以减少锡层的摩擦磨损。结论通过改变镀锡板基板的毛化平整工艺,使镀锡板表面形貌中的R_sk由-1升至0.5,可将镀锡量为2.8 g/m²的镀锡板的掉锡率由30%降至10%,有利于降低镀锡板在制罐翻边过程中出现锡痕残留的概率,可减少模具擦拭频率、保障食品安全。

Abstract

During the flanging process of tinplate for milk powder cans, tin residues remain on the mold surface and transfer reciprocally between the mold and can bodies. To address the issue of frequent cleaning of molds by staff and to prevent contamination of contents by tin residues, the work aims to investigate the effect of the surface morphology of tinplate on wear resistance of milk powder can forming. The worn morphology at the flanging position of the milk powder can was observed with a scanning electron microscope. The tin residues on the mold surface were tested with an X-ray diffractometer. The damage caused by the force acting on the tin layer was simulated with the Ansys software. The friction and wear effect during the flanging process was simulated with a friction tester. The tin shedding rate of the tinplate with different surface morphologies was tested with an electrochemical method. The wear of the flange mold on the tin layer with a tin coating weight of 2.8 g/m² caused the tin layer to break, fall off and expose the alloy layer. The poor wear resistance of the tinplate essentially resulted from the adhesive wear and abrasive wear of the tin layer between the substrate and the flange mold. By adjusting the R_sk value on the surface morphology of the tinplate to make it positive, the actual contact area between the flanging ball and the tinplate could be reduced, thereby minimizing the friction and wear of the tin layer. By modifying the electrical discharge texturing and rolling process of the tinplate, the R_sk value in the surface morphology of the tinplate increased from -1 to 0.5. This results in a 30% reduction in the tin shedding rate of the tinplate with a tin coating weight of 2.8 g/m², which is beneficial for reducing the probability of tin residue during the can flanging process with the tinplate, reducing the frequency of mold wiping, and ensuring food safety.

导出引用

方圆, 齐韦, 万一群, 沈鹏杰, 陈艺敏, 张梅. 镀锡板表面形貌对奶粉罐成型耐磨性的影响[J]. 包装工程. 2026, 47(17): 145-154 https://doi.org/10.19554/j.cnki.1001-3563.2026.17.016

FANG Yuan, QI Wei, WAN Yiqun, SHEN Pengjie, CHEN Yimin, ZHANG Mei. Effect of Tinplate Surface Morphology on Wear Resistance of Milk Powder Can Forming[J]. Packaging Engineering. 2026, 47(17): 145-154 https://doi.org/10.19554/j.cnki.1001-3563.2026.17.016

中图分类号： TB48

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