IMPROVING WORK RESOURCE OF SAFETY EQUIPMENT FOR EUTECTIC COATING

Today, in Ukraine, fire-fighting and rescue units in the event of fires and emergencies of a natural and anthropo-genic nature are often forced to operate emergency life-saving tools and equipment that are partially worn or outdated. It is extremely costly to completely replace the equipment of all fire and rescue units. Therefore, the development of methods for the restoration of worn or partially worn parts of fire and rescue equipment, as well as increasing their service life and interrepair interval, is an urgent task for today.The proposed work is devoted to the application of eutectic coatings based on the Fe-Mn-C-B-Si alloy Cr system for the restoration of partially wornout steel parts of firefighting equipment and rescue equipment, as well as to increase the service life (lifetime) of these parts. The essence of the experimental study was to compare the wear of the cutting elements of hydraulic emergency rescue scissors "Hydrum H-32" series production and scissors with a protective eutectic coating. The work life of the eutectic coatings of Fe-Mn-C-B-Si doped Cr working bodies of emergency rescue scissors in 1.8 times greater than that of working bodies of serial production, so it is advisable to repair such worn parts of the rescue and fire tool. Due to the relatively low cost of eutectic alloys based on iron, this method is economically viable as an alternative to replacing parts with new ones. This type of coating can also be applied to other steel parts of fire-fighting and rescue equipment to restore worn parts and increase service life and overhaul intervals. The use of durable eutectic iron based coatings is economically feasible given their relatively low cost.