PROCESSING OF CHROME ALLOYED STEELS BY COMPLEX EROSION IN A SOLUTION OF SODIUM SILLICATE, KAOLINE AND SODIUM NITRATES

Abstract

At the processing by electrochemical and electrical discharges, an important influence has the working solution. This paper presented the results obtained by applying of a mixture between colloidal and inorganic solutions that will remove the drawbacks of both media and lead to the increasing of the process efficiency. For the best solution (silicate 30%+ kaolin 10% +NaNO₃ 5%), was analysed the process efficiency Q_p , at the processing by electrochemical and electrical discharges, of the steel bars with different percent of chrome. By comparing the obtained results has been established the best results for processing by electrochemical and electrical discharges steels alloyed with chrome.