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Productivity and quality are among the objective functions which can be influenced by the flow rate and the state of the cooling channels of a plastic injection mold. The scientific work presents the place and the role of this subject in the machine building industry and its main purpose is to improve and clean the cooling channels using an acid cleaning device. Due to the hard water from Sibiu, in time inside the cooling channels of the injection mold a layer of rust is deposited, leading to a decrease in flow and temperature transfer to the inside of the mold. Following an analysis conducted within a company in the automotive field in Sibiu, a solution to this problem has been reached and implicitly to a remarkable improvement and an increase in the productivity of the plastic injection mold.

TECHNICAL AND ECONOMIC STUDY ON CLEANING THE COOLING CHANNELS OF A PLASTIC INJECTION MOLD