کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1166489 960500 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Image analysis for maintenance of coating quality in nickel electroplating baths – Real time control
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Image analysis for maintenance of coating quality in nickel electroplating baths – Real time control
چکیده انگلیسی

The aim of this paper is to show how it is possible to extract analytical information from images acquired with a flatbed scanner and make use of this information for real time control of a nickel plating process. Digital images of plated steel sheets in a nickel bath are used to follow the process under degradation of specific additives. Dedicated software has been developed for making the obtained results accessible to process operators. This includes obtaining the RGB image, to select the red channel data exclusively, to calculate the histogram of the red channel data and to calculate the mean colour value (MCV) and the standard deviation of the red channel data. MCV is then used by the software to determine the concentration of the additives Supreme Plus Brightner (SPB) and SA-1 (for confidentiality reasons, the chemical contents cannot be further detailed) present in the bath (these two additives degrade and their concentration changes during the process). Finally, the software informs the operator when the bath is generating unsuitable quality plating and suggests the amount of SPB and SA-1 to be added in order to recover the original plating quality.

Figure optionsDownload as PowerPoint slideHighlights
► This manuscript presents a complete methodology for online process control of the electroplating processes.
► The methodology uses flat-bed scanners for collecting pictures of the electroplated flat surfaces with nickel.
► Dedicated software has been developed for making the obtained results accessible to process operators.
► The statistical parameters of control are the mean and the standard deviation of the colour in the whole surface.
► The methodology can possibly be extended to other similar metal electroplating baths.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 706, Issue 1, 7 November 2011, Pages 1–7
نویسندگان
, , , , , ,