钢板水基防锈处理液的制备及性能研究

发布时间：2018-04-26 18:13

  本文选题：缓蚀物质 + 耐蚀性　； 参考：《沈阳理工大学》2017年硕士论文

【摘要】：钢板材料在储存运输过程中,由于与空气中的水分、氧气等腐蚀介质接触,会发生锈蚀现象。据统计,每年因为腐蚀问题而造成的经济损失约占我国GDP总量的4%,以2015年为例,我国GDP总量为676708亿,其中因材料腐蚀而造成的损失为27068亿元,所以金属材料的腐蚀防护技术是一项意义深远,值得研究的课题。水基防锈液是在水溶液中加入缓蚀物质,经其处理的金属表面会形成一层保护性膜层,能够达到阻止基体与腐蚀介质接触的效果,从而减缓腐蚀现象的发生。本实验主要通过对防锈液中主要缓蚀物质、辅助缓蚀物质和助剂进行性能研究,得到防锈液的配方为邻氨基苯甲酸1.7g/L、癸二酸1.4g/L、肉桂酸1.2g/L、醇类物质W 15ml/L、尿素6g/L、添加剂A 1.5g/L、1ml/L OP-10、1ml/L消泡剂、1ml/L EDTA。同时对防锈液对钢板的处理工艺进行研究,得出处理温度为50℃、处理时间为2min。对防锈液性能进行研究中,将本实验自制防锈液与市场上广泛使用的GCW-1防锈液进行性能对比:热轧钢板经本实验自制防锈液处理后在3.5%盐水中发生腐蚀的时间为171min,而市场上使用GCW-1的防锈液耐腐蚀时间为154min;热轧钢板经168h湿热实验测试,经本实验自制防锈液处理后,钢板表面的腐蚀面积为15%,市场上使用的GCW-1防锈液处理后钢板的腐蚀面积在20%以上;电化学测试实验中,本实验自制与市场上使用的GCW-1防锈液相比,腐蚀电位由-0.7444V升至-0.6970V,提高0.0474V;腐蚀电流由3.668×10-5A/cm2降低至1.479×10-5A/cm2,阻抗值由1824Ω增加至1951Ω;可以看出本实验自制防锈液对于钢板耐蚀性的提高强于市场上所用的GCW-1防锈液。同时,自主配置的防锈液对于热轧钢板、冷轧钢板都有较理想的防锈能力。最后将本实验所制备的防锈液进行损耗实验,原防锈液中缓蚀物质耗损一半后,仍具有较好的防锈性能,当继续损耗至四分之一时,防锈性能变差。最后将本实验制备的防锈液用于热轧板生产过程中的1000℃除鳞工艺和400℃冷却工艺中,结果表明使用防锈液进行处理时,在提高热轧板表面状态的同时,还会进一步提高热轧板的耐蚀性能。
[Abstract]:During storage and transportation of steel plate materials, corrosion will occur due to contact with corrosive media such as air moisture and oxygen. According to statistics, the annual economic losses caused by corrosion account for about 4% of the total GDP in China. Taking 2015 as an example, the total GDP of our country is 67.6708 trillion, of which the loss caused by material corrosion is 2.7068 trillion yuan. Therefore, the corrosion protection technology of metal materials is a far-reaching and worthy of study. Water-based antirust solution is a kind of corrosion inhibitor added in aqueous solution. The surface of the metal treated with it will form a protective film which can prevent the matrix from contacting with the corrosive medium and thus slow down the occurrence of corrosion. In this experiment, the performance of the main corrosion inhibitor, auxiliary corrosion inhibitor and auxiliary corrosion inhibitor in the antirust solution was studied. The formula of the antirust solution is o aminobenzoic acid 1.7 g / L, sebacic acid 1.4 g / L, cinnamic acid 1.2 g / L, alcohol W 15 ml / L, urea 6 g / L, additive A 1.5 g / L 1 ml / L OP-10 1 ml / L defoamer 1 ml / L EDTA. At the same time, the process of treating steel plate with antirust liquid was studied, and the treatment temperature was 50 鈩，

本文编号：1807099