Abstract
It has been noted that among the existing methods of magnetic inspection for iron impurities in fuels and lubricants the preferred one should be the method based on multiple repetition of magnetophoresis operations and measurements of operation weights of the segregated iron impurities. In this case, the resulting discrete weight/operation relation is subject to an exponential function. It allows for the calculation of any current operation weight (including beyond the actual experiment) and the total (including residual) weight, and thus, the actual concentration of iron impurities. The examples of engine oil and a cutting fluid have proven the existence of an exponential decrease in the weights of the segregated iron impurities in serial sections of a magnetic analyzer. The possibility and practicability of the formal reception of magnetic inspection operations (sections) “block grouping” has been substantiated, in particular for a six-section magnetic analyzer - in the form of three blocks of two sections and/or two blocks of three sections. It is noted that the existing methods of magnetic monitoring of iron impurities in petroleum products need refinement, including validation of the specimen flow rate limits in the analyzer. It is shown that the rate depends parabolically on the ratio of the size of the iron particle to the distance to the source of the field of the magnetic system in the analyzer.
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The research is conducted with financial support from Russian Federation Ministry of Education and Science No 9.9626.2017.
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Sandulyak, A.V., Sandulyak, A.A., Ershova, V.A. (2019). Possibility of Block Grouping of Magnetic Inspection Operations for Iron Impurities in Oils and Cutting Fluids. In: Gapiński, B., Szostak, M., Ivanov, V. (eds) Advances in Manufacturing II. MANUFACTURING 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-16943-5_14
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