水杨酸对镀锡板耐蚀性的影响

贾宁, 刘包发, 岳重祥, 宋乙峰, 李建中

doi:10.16577/j.issn.1001-1560.2022.0334

材料保护 >

2022 , Vol. 55 >Issue 12: 22 - 26

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0334

冷轧板表面防护的发展专栏

水杨酸对镀锡板耐蚀性的影响

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¹东北大学冶金学院； ²江苏省(沙钢)钢铁研究院

李建中(1976-)，教授，博士，研究方向为金属的腐蚀与表面改性，电话:13704020960，E-mail:lijz＠mail.neu.edu.cn

收稿日期: 2022-06-20

修回日期: 2022-07-12

录用日期: 2022-08-02

网络出版日期: 2023-12-26

基金资助

国家重点研发计划(2019YFE0123900)；中央高校基本科研业务费(N2125035)资助

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Effect of Salicylic Acid on the Corrosion Resistance of Tin Plate

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(1. School of Metallurgy， Northeastern University， Shenyang 110004， China；2. Jiangsu (Shagang) Iron and Steel Research Institute， Zhangjiagang 215625， China)

Received date: 2022-06-20

Revised date: 2022-07-12

Accepted date: 2022-08-02

Online published: 2023-12-26

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摘要

镀锡板是一种价格低廉、应用广泛的双面镀锡薄钢板，采用甲基磺酸盐体系生产镀锡板只需要增加一道助熔工序即可达到良好的软熔效果。为了降低锡资源消耗、提高镀锡板质量，以水杨酸(SA)溶液作为镀锡板软熔前的助熔剂，通过扫描电镜、Tafel 曲线测试、X 射线衍射(XRD)和高分辨率共聚焦显微激光拉曼仪等检测手段，研究了水杨酸溶液浓度对镀锡板耐蚀性的影响并模拟了水杨酸在镀锡板表面的吸附状态变化。结果表明:水杨酸中C ＝O 键在拉曼光谱中的左移使锡晶粒取向向低平面(200)转变，当水杨酸溶液浓度为8 mL/L 时，镀锡板的锡铁合金层形貌、晶粒取向情况最好，在该浓度下助熔时低锡量镀锡板的耐蚀性最好。

关键词： 水杨酸; 镀锡板; 软熔; 锡铁合金层

本文引用格式

贾宁, 刘包发, 岳重祥, 宋乙峰, 李建中 . 水杨酸对镀锡板耐蚀性的影响[J]. 材料保护, 2022 , 55(12) : 22 -26 . DOI: 10.16577/j.issn.1001-1560.2022.0334

Abstract

Tin plate is a kind of low-price and widely used double-side-tinned sheet steel， and only an addition of a fluxing process is needed to achieve a good reflow effect when using methanesulfonate system to produce tin plate. Herein， in order to reduce the consumption of tin resource and improve the quality of tin plate， salicylic acid (SA) solution was used as the fluxing agent before the reflowing of tin plate. The effects of salicylic acid solution concentration on the corrosion resistance of tin plate and the variation of salicylic acid adsorption state on the surface of tin plate were studied and simulated by scanning electron microscope， Tafel curve， X-ray diffraction (XRD) and high resolution confocal microscopic laser Raman instrument. Results showed that the left shift of the C ＝O bond in salicylic acid made the orientation of tin grains shift to the lower plane (200). When the concentration of salicylic acid solution was 8 mL/L，the morphology and grain orientation of the tin-iron alloy layer on the tin plate were the optimal， and the corrosion resistance of tin plates with low tin contents was the best when fluxed at this concentration.

Key words： salicylic acid; tin plate; reflowing; tin-iron alloy layer

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