Quenching oil selection based on tribological effects at metal cooling processes

Pedišić, Ljiljana and Matijević, Božidar and NOVINA, Bruno (2014) Quenching oil selection based on tribological effects at metal cooling processes. = Quenching oil selection based on tribological effects at metal cooling processes. In: 8th Int. Conference on Tribology BALKANTRIB'14, 30.10 - 1.11.2014., Sinaia, Romania.

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Official URL: https://bib.irb.hr/prikazi-rad?&rad=789460

Abstract

At metals heat treatment processes quenching media are applied in order to achieve specific materials quality. Adequate selection of quenching media decreases the risk of tensile stresses, and also of cracking and workpiece distortion. The quenching oil contain a base oil and different types of additives according to application requirements. During metal cooling process quenching oil is exposed to high temperatures in the presence of metals and air which has an adverse impact on the working life of oil. Because of that high-performance quenching oils must have very high oxidation and thermal resistance and low sludge formation, must be non-staining and have a high flash point and acceptable heat-transfer characteristics. There are numerous compounds available for use but, besides their functional and safety properties, the tribology effects have to be considered in the selection of components. Mineral oils, synthetic and natural oils, used separately or in combination, may be used as base oils. Mineral base oils are widely used because of their advantages with respect to stability in comparison to natural oils, or lower prices in comparison to synthetic oils. By proper components selection for quenching oils production, both base oils and additives, working life can be extended. In this study are presented the results of investigation of physical and chemical properties of new quenching oils and also oils from application.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): Heat treatment process, quenching oils, additive, cooling characteristics
Subjects: TECHNICAL SCIENCE > Chemical engineering
TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1000 Department of Materials > 1020 Chair of Heat Treatment and Surface Engineering
Date Deposited: 21 Sep 2016 06:44
Last Modified: 21 Sep 2016 06:44
URI: http://repozitorij.fsb.hr/id/eprint/6559

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