CN106435560B - 一种化学泵不锈钢泵壳表面磷化处理剂 - Google Patents
一种化学泵不锈钢泵壳表面磷化处理剂 Download PDFInfo
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Abstract
发明公开了一种化学泵不锈钢泵壳表面磷化处理剂，由溶液A与溶液B组成；所述溶液A由以下成分制成：钼酸铋、氯化钠、碳酸钾、尿素、水；所述溶液B按重量份计由以下成分制成：马来酸酐、磷酸铵、硫酸、磷酸二氢锌、酸类助剂、次氯酸钾、水；所述酸类助剂按重量份计由以下成分制成：丙氨酸、甘氨酸、枸椽酸。本发明的磷化处理剂，成膜稳定性好，大大提高了磷化处理后磷化膜的致密性和均匀性，磷化膜附着力高，提高了化学泵不锈钢泵壳的耐腐蚀性和耐磨性，磷化膜纯度高，沉淀物易清理，不仅缩短了传统高温表面磷化处理的时间，而且解决了传统高温磷化处理中磷化膜易夹杂沉淀。
Description
技术领域
本发明涉及化学泵泵壳表面处理领域，特别是涉及一种化学泵不锈钢泵壳表面磷化处理剂。
背景技术
化学泵是全国联合设计的节能泵，泵的性能，技术要求，根据国际标准ISO2858所规定的性能和尺寸设计的，其优点：全系列水利性能布局合理，用户选择范围宽，“后开式”结构，检修方便、效率和吸程达到国际先进水平。化学泵分类：不锈钢化学泵，塑料化学泵，氟塑料化学泵，电动化学泵，气动化学泵。在很多领域中，化学泵采用20号不锈钢制备，在加工时，需要对不锈钢表面进行表面处理，提升防腐蚀性能，磷化作用是增强涂装膜层与工件间结合力，但是现有的高温表面磷化处理，成膜不稳定，磷化膜容易脱落，磷化膜易夹杂沉淀，沉淀物难清理。
发明内容
本发明通过以下技术方案实现：
一种化学泵不锈钢泵壳表面磷化处理剂，由溶液A与溶液B组成；
所述溶液A按重量份计由以下成分制成：钼酸铋1-5、氯化钠4-8、碳酸钾4-8、尿素1-3、水80-100；
所述溶液B按重量份计由以下成分制成：马来酸酐4-5、磷酸铵8-10、硫酸1-3、磷酸二氢锌2-4、酸类助剂0.2-0.6、次氯酸钾1-3、水70-80；所述酸类助剂按重量份计由以下成分制成：丙氨酸4、甘氨酸4、枸椽酸1。
进一步的，所述的溶液A中氯化钠与碳酸钾含量相同。
进一步的，所述的溶液B中磷酸铵的含量是马来酸酐含量的2倍。
进一步的，所述的化学泵不锈钢泵壳表面磷化处理剂的使用方法，包括以下步骤：
（1）将不锈钢泵壳使用温度为15℃的质量分数1.0%的碳酸钠水溶液中浸泡，并使用15kHz的超声波处理5min后，添加碳酸钠质量5倍的正丙醇，然后将温度升高至55℃，并使用18kHz的超声波处理18min后，使用清水清洗；通过此处理，可以显著提高磷化处理效率，磷化处理效率提高了20%以上；
（2）将溶液A加热至40℃，然后将步骤（1）处理好的不锈钢泵壳放入溶液A中浸泡2min后，取出，采用40℃清水清洗；
（3）将溶液B温度调节至18℃，然后将步骤（2）处理好的不锈钢泵壳放入溶液B中，快速加热至90-98℃，浸泡6-8min后，取出，采用90-95℃清水清洗，然后烘干，即可，干燥温度为120℃。通过采用溶液A与溶液B相结合对化学泵泵壳处理，可以显著提高膜层与泵壳之间的结合力，并显著提高泵壳表面的耐腐蚀性，本发明处理后的磷化膜的明度提高到80以上，从而显著的提高化学泵泵壳磷化后的表面质量。
经过本发明磁力泵不锈钢泵壳表面磷化剂处理后，盐雾试验（5%中性盐雾）在95h以上，耐蚀性能非常好。
本发明的有益效果是：本发明的磷化处理剂，成膜稳定性好，大大提高了磷化处理后磷化膜的致密性和均匀性，磷化膜附着力高，提高了化学泵不锈钢泵壳的耐腐蚀性和耐磨性，磷化膜纯度高，沉淀物易清理，不仅缩短了传统高温表面磷化处理的时间，而且解决了传统高温磷化处理中磷化膜易夹杂沉淀，沉淀物难清理的问题，提高了磷化的效率。
具体实施方式
实施例1
一种化学泵不锈钢泵壳表面磷化处理剂，由溶液A与溶液B组成；
所述溶液A按重量份计由以下成分制成：钼酸铋1、氯化钠4、碳酸钾4、尿素1、水80；
所述溶液B按重量份计由以下成分制成：马来酸酐4、磷酸铵8、硫酸1、磷酸二氢锌2、酸类助剂0.2、次氯酸钾1、水70；所述酸类助剂按重量份计由以下成分制成：丙氨酸4、甘氨酸4、枸椽酸1。
实施例2
一种化学泵不锈钢泵壳表面磷化处理剂，由溶液A与溶液B组成；
所述溶液A按重量份计由以下成分制成：钼酸铋5、氯化钠8、碳酸钾8、尿素3、水100；
所述溶液B按重量份计由以下成分制成：马来酸酐5、磷酸铵10、硫酸3、磷酸二氢锌4、酸类助剂0.6、次氯酸钾3、水80；所述酸类助剂按重量份计由以下成分制成：丙氨酸4、甘氨酸4、枸椽酸1。
实施例3
一种化学泵不锈钢泵壳表面磷化处理剂，由溶液A与溶液B组成；
所述溶液A按重量份计由以下成分制成：钼酸铋3、氯化钠6、碳酸钾6、尿素2、水90；
所述溶液B按重量份计由以下成分制成：马来酸酐4.5、磷酸铵9、硫酸2、磷酸二氢锌3、酸类助剂0.4、次氯酸钾2、水75；所述酸类助剂按重量份计由以下成分制成：丙氨酸4、甘氨酸4、枸椽酸1。
磷化膜性能测试：
表1
| 附着力/MPa | 明度 | 溶液A与B处理总时间/min | |
| 实施例1 | 6.44 | 81 | 10 |
| 实施例2 | 6.50 | 83 | 8 |
| 实施例3 | 6.46 | 82 | 9 |
| 对比例1 | 4.28 | 65 | 15 |
| 对比例2 | 5.62 | 72 | 12 |
其中，对比例1为：一种化学泵不锈钢泵壳表面磷化处理剂，按重量份计由以下成分制成：马来酸酐4、磷酸铵8、硫酸1、磷酸二氢锌2、酸类助剂0.2、次氯酸钾1、水70；所述酸类助剂按重量份计由以下成分制成：丙氨酸4、甘氨酸4、枸椽酸1；
对比例2为：一种化学泵不锈钢泵壳表面磷化处理剂，由溶液A与溶液B组成；
所述溶液A按重量份计由以下成分制成：钼酸铋1、氯化钠4、碳酸钾4、尿素1、水80；
所述溶液B按重量份计由以下成分制成：马来酸酐4、磷酸铵8、硫酸1、磷酸二氢锌2、次氯酸钾1、水70；
由表1可以看出，本发明化学泵不锈钢泵壳磷化处理剂性能优越，磷化膜附着力高，明度高，处理时间短，单独使用溶液B处理，磷化膜附着力、明度明显降低，处理时间变长，溶液B中不添加本发明配制的酸类助剂，磷化膜附着力、明度均有所下降，处理时间变长。
Claims (4)
1.一种化学泵不锈钢泵壳表面磷化处理剂，其特征在于，由溶液A与溶液B组成；
所述溶液A按重量份计由以下成分制成：钼酸铋1-5、氯化钠4-8、碳酸钾4-8、尿素1-3、水80-100；
所述溶液B按重量份计由以下成分制成：马来酸酐4-5、磷酸铵8-10、硫酸1-3、磷酸二氢锌2-4、酸类助剂0.2-0.6、次氯酸钾1-3、水70-80；所述酸类助剂按重量份计由以下成分制成：丙氨酸4、甘氨酸4、枸椽酸1。
2.根据权利要求1所述的一种化学泵不锈钢泵壳表面磷化处理剂，其特征在于，所述的溶液A中氯化钠与碳酸钾含量相同。
3.根据权利要求1所述的一种化学泵不锈钢泵壳表面磷化处理剂，其特征在于，所述的溶液B中磷酸铵的含量是马来酸酐含量的2倍。
4.根据权利要求1所述的一种化学泵不锈钢泵壳表面磷化处理剂，其特征在于，所述的化学泵不锈钢泵壳表面磷化处理剂的使用方法，包括以下步骤：
（1）将不锈钢泵壳使用温度为15℃的质量分数1.0%的碳酸钠水溶液中浸泡，并使用15kHz的超声波处理5min后，添加碳酸钠质量5倍的正丙醇，然后将温度升高至55℃，并使用18kHz的超声波处理18min后，使用清水清洗；
（2）将溶液A加热至40℃，然后将步骤（1）处理好的不锈钢泵壳放入溶液A中浸泡2min后，取出，采用40℃清水清洗；
（3）将溶液B温度调节至18℃，然后将步骤（2）处理好的不锈钢泵壳放入溶液B中，快速加热至90-98℃，浸泡6-8min后，取出，采用90-95℃清水清洗，然后烘干，即可，干燥温度为120℃。
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