Investigation of Non-abrasive Antifrictional Surface Finishing
Keywords:friction, coating, surface activating materials, non-abrasive antifriction surface finishing.
Non-abrasive antifrictional surface finishing is one of the most perspective technique of surface treatments. The technique is very simple, easily and economically applied. The papers outlines the description of this method, there are discussed some effects and a scheme of a device designed for realizing this technique is given. There is also given the operation principles of surface activating materials glycerin and ammonium bichromate in forming coatings, chemical reactions and their products.
The tribotechnical experiments were carried out with pair “steel – aluminium alloy” in the case of adaptation period and extreme loads conditions. The obtained experimental results are shown by images of load variation, friction moment dependences graphs, treated by NASF and working surfaces.
To form a brass coating on steel 45 surface, there may be used both organic (glycerin) and inorganic (ammonium bichromate) substances. The obtained surfaces by NASF technique may hold out much greater loads, their wear is almost 5 times less than of those ones which were not treated. Rollers with PAM ammonium bichromate more easily were adapting themselves to load change.
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