Faculty of Mechanical engineering, University of Maribor, Maribor, Slovenia
Faculty of mechanical engineering, University of Maribor, Maribor, Slovenia
Hydraulic cylinder malfunctions are very common causes for the failure of the operation of the hydraulic system. Most common causes are in cylinder’s seal failure, whereby the error by replacing the seals can be relatively quickly eliminated. In the case of frequent occurrence of the same failure, the problem should be more carefully addressed.
The focus of the paper is searching for the actual cause of the frequently repeated failure of the closing cylinder on the plastic blow-moulding machine. The solution of the problem presented was the use of a combined approach: analysis of wear particles in the oil, and measurement of the accuracy of the motion of the cylinder’s piston rod.
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