乔永莲.镀镍槽液中镍含量的在线监测系统研究[J].表面技术,2015,44(11):128-133.
乔永莲.Analysis the composition of nickel plating bath by on-line monitoring systemQIAO Yong-lian1, SHA Chun-Peng1, DONG Yu2, LIU Bing1[J].Surface Technology,2015,44(11):128-133 |
| 镀镍槽液中镍含量的在线监测系统研究 |
| Analysis the composition of nickel plating bath by on-line monitoring systemQIAO Yong-lian1, SHA Chun-Peng1, DONG Yu2, LIU Bing1 |
| 投稿时间：2015-09-20 修订日期：2015-09-28 |
| DOI： |
| 中文关键词: 槽液组成 电化学测量 自动化 在线监测 PLC技术 |
| 英文关键词:bath composition electrochemical measurement automation on-line monitoring PLC |
| 基金项目:国家科技重大专项课题资助(2013zx04001041). |
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| 中文摘要: |
| 目的 研发一种能够在线监测镀镍槽液中镍离子含量的测试系统,并将此方法推广至其他槽液,如镀铬、镀镉、镀铜等槽液。方法 本研究利用计算机VC++语言编程技术、Modbus通讯技术、西门子PLC技术组成监控系统。具体是通过耐酸碱计量泵和耐酸碱流量计对镀镍槽液取液量进行控制和校正,采用电化学测试方法对所取的待测槽液进行在线监测,然后采用VC++语言编程技术对电化学测试结果中的数据进行采集,最终实现对镀镍槽液中镍离子含量的自动监测。结果 采用此自动控制系统测量镀镍槽液中镍离子的浓度,其浓度与极化曲线中-1.0 V vs. SCE电位下的极化电流之间的线性拟合方程为：I=0.00201+6.90×10-5c。以120 g L-1待测溶液为分析对象,采用此自动检测系统测得镀镍液中Ni2+离子浓度为115.5g L-1,而采用EDTA直接滴定分析,测得其Ni2+离子浓度为113.7 g L-1,计算得其测量误差分别为3.78%和5.25%。结论 该镀镍槽液中镍离子含量的在线监测方法可靠性高,除了对镀镍槽液状态进行监控分析外,还能对镀铬槽液、镀镉槽液等进行监控分析,可适应较恶劣的生产环境。 |
| 英文摘要: |
| Objective To develop a new method for high-efficiency and high-automatic on-line monitoring of nickel ions concentration, and to expand it to chromeplate, cadmium plating, and copper plating.et.al. Methods The system was composed by VC++ Language programming, Modbus communication technology and PLC Siemens technology. The amount of nickel plating bath for nickel ions monitor was controlled and revised by meter pump and flowmeter. The bath solution was automatic monitored by electrochemical testing method and then the results for were collected by VC++ Language programming. Therefore, the composition of nickel plating bath can be automatically monitored by this excellent reliability method. Results The relationship between the nickel ions and the polarization current value at -1.0 V vs. SCE is fitted as I=0.00201+6.90×10-5 by the system of the on-line monitoring of nickel ions concentration. For 120 g L-1 nickel plating solution, the concentration of the nickel ions was detected as 115.5g L-1 and 113.7 g L-1 and the measuring error was 3.78% and 5.25% by this on-line monitoring and EDTA titrimetric analysis, respectively. Conclusion Because of its high reliability, the system can not only be used to monitor the status of nickel plating bath, but also for the cadmium plating bath and the chromium plating bath. Most importantly, it can be used to harsh environment. |
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