Authors: T.G. Cherkasova, Yu.S. Akhremkova

Title of the article: Metrological support of measurements and control quality of hydraulic fluids

Year: 2019, Issue: 2, Pages: 25-30

Branch of knowledge: 05.17.01 Technology of inorganic substances

Index UDK: 006.83; 006.86; 66-06

DOI: 10.26730/1999-4125-2019-2-25-30

Abstract: The review of literature on the classification, composition and properties of hydraulic fluids is presented in the article. Hydraulic fluids type HFA are used in hydraulic systems in the coal industry. The problematic issues of the organization of metrological support and quality control of hydraulic fluids of this type are considered. The need to develop rules and regulations for testing and quality control of this product is shown. On the territory of the Russian Federation, the technical regulation TR TS 030/2012 is applicable. This document specifies requirements for hydraulic fluids. This article presents the tests of working solutions carried out on the basis of a concentrate of hydraulic liquid. The dependence of the corrosive effect on metals and foaming on the pH value is shown. At low pH values, severe corrosion losses are observed. At high pH values, strong foaming is observed. The dependence of pH, corrosion losses and foaming on the concentration of working fluids is also investigated. With increasing concentration, an increase in pH, foaming and a decrease in corrosion losses is observed. The relationship between the content of mechanical impurities and the purity class of working fluids is studied. The necessity of expansion of the area of controlled indicators of quality of hydraulic fluids is shown.

Key words: Hydraulic fluid coal mining working fluid metrology standardization quality

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