from the conferences organized by TANGER Ltd. provisional website
The presented work constitutes the continuation of the previous research concerning the measurement of the tribological properties of different zinc coatings deposited to fasteners. The applied heat treatment was mainly focused on increasing the hardness of the outer layer of the zinc coating and increasing wear resistance. Fasteners (M12-60 bolts) were galvanized in industrial conditions (according to PN-EN ISO 10684), and next were subjected to the heat treatment in an electric chamber furnace. Bolt sets were subjected to analyses using the Schatz ® Analyse device. It lets for determining the quality of fasteners in realistic working conditions (e.g. assembly) and according to international standards. Results of attempts allowed for determination the rate of the friction coefficient of bolts and nuts on the thread and under the head and verification of the coating heat treatment influence on measured parameters - microstructure changes, micro-hardness distribution and coating topography of the zinc coating before and after the heat treatment.Keywords: Hot-dip zinc coating, fasteners, Schatz Analyse
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