The deterioration of the plunger working surfaces and sleeve worsens economic environmental performance diesel engine. Therefore, restoring worn pairs with an increase in their wear resistance is economically feasible. problem proposed to be solved by method diffusion metallization obtain hardening coatings based on iron carbides, nitrides borides alloying elements. ( Research purpose) To evalua...

a few years after the implementation of computerize maintenance management systems (cmms), showing the analysis results of the collected data in these systems is necessary and important for continuing the usage of these systems. equipment downtime and cost data can identify patterns of equipment faults and equipment costs. it can also show deficiencies in the implementation of maintenance syste...