Environmental efficiency evaluation for processes of plasma electrolytic removal of defective coatings FROM GTE PARTS

E.V. Parfenov, A.A. Bybin, R.R. Nevyantseva

The paper discusses environmental issues of coating stripping processes based on chemical and plasma electrolytic techniques. An approach based on ISO 14000 standard was proposed for evaluation of the environmental efficciency of the coating stripping processes. It was shown the that plasma electrolytic technique is 25% more environmentally efficient than the chemical technique of the defective coating removal. It has been shown that the application of the plasma electrolytic technique is the most effective for stripping of multiphase coatings, while for simple coatings the efficiency of the both methods is similar.

Key words: protective coating, coating removal, plasma electrolytic technique, chemical technique, environmental efficiency, ISO 14000 standard.