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据《表面技术》2001年第1期罗娟等报道:作者主要研究软铁系磷化,以磷酸二氢钠为主盐,通过对促进剂的优化选择、研究了低温快速磷化工艺,结果表明它的性能优良,有着广泛的应用前景。磷化基础液的配制:将浓磷酸均匀分在两烧杯中,加入适量的水,分别将钼酸钠、碱式碳酸铜溶解,将磷酸二氢钠用水溶解,将酒石酸、丹宁酸和十二烷基苯酸钠用水溶解,将上述几种溶液混合,搅拌均匀,配制成200ml/L的浓缩液,使用时稀释,加促进剂。工艺参数:总酸点数40-55:游离酸点数2～3;温
According to Surface Technology, No. 1, 2001, Luo Juan et al reported that the author mainly studied the soft iron-based phosphating, sodium dihydrogen phosphate as the main salt, through the optimization of the accelerant to study the rapid low-temperature phosphating process, the results It shows its excellent performance, has a wide range of applications. Preparation of phosphating base fluid: The concentrated phosphoric acid was evenly divided into two beakers, adding an appropriate amount of water, sodium molybdate, basic copper carbonate were dissolved, the sodium dihydrogen phosphate dissolved in water, the tartaric acid, tannic acid and ten Sodium dialkyl benzene dissolved in water, the above several solutions were mixed, stir, formulated into 200ml / L of the concentrate, diluted with the use of accelerators. Technical parameters: total acid points 40-55: free acid points 2 ~ 3; warm