THE INFLUENCE OF MODIFIED ADDITIVE ON USING PROPERTIES OF ECOLOGICAL GREASES
Journal Title: Tribologia - Year 2010, Vol 229, Issue 1
Abstract
In this article, the investigation result on the influence of additive silica and Teflon on lubricating properties of selected lubricated compositions are presented. For modification of greases made on silica-mineral and mineral bases, modified silica thickened with lithium stearate and was used in the shape of Teflon powder and colloidal silica at a ratio 3:2. Tribological tests were carried out using four-ball apparatus for lubricants not containing the modified additive and compared them with the results obtained for greases modified with the additive mentioned above. For the estimation of these properties, the results of investigations limiting load of wear, weld point, scuffing load, limiting load of scuffing and limiting pressure of seizure were used. On the basis of tribological properties of the examined greases, we concluded that additive of silica and Teflon influences the greases by increasing the anti-scuffing properties of lubricating compositions. Simultaneously, insignificant deterioration of antiwear properties is not disqualifying examined greases for practical applications.<br/><br/>
Authors and Affiliations
Rafał Kozdrach, Jolanta Drabik, Ewa Pawelec, Jarosław Molenda
Keywords
Related Articles
- EP ID EP517336
- DOI -
- Views 27
- Downloads 0
MODELLING AND ANALYSIS OF ROTATING SYSTEMS WITH GAS FOIL BEARINGS UNDER TRANSIENT OPERATING CONDITIONS
Gas foil bearings are on the cutting edge of bearing systems that spread worldwide. Although it is a common practice to apply such systems to high-speed fluid-flow machinery, their modelling and analysis still pose a num...
A THOROUGH COMPARISON OF TWO INDUSTRIAL GEAR OILS WITH A NATURAL AND MINERAL BASE
At ITeE PIB in Radom, an ecological industrial gear oil, denoted as Arol P220, has been formulated. The oil is based on the mixture of rapeseed and castor oils, and is a substitute for a VG 220 commercial gear oil with...
Kapryloamfoproponian sodu jako efektywny dodatek modyfikujący właściwości smarne wody
WPŁYW STRUKTURY GEOMETRYCZNEJ POWIERZCHNI TARCZ STALOWYCH NA TARCIE I ZUŻYCIE FRETTINGOWE
W badaniach zastosowano tester tribologiczny Optimol SRV5. Kulka ze stali 100Cr6 o twardości 60 HRC kontaktowała się z tarczą o średnicy 10 mm wykonaną ze stali 42CrMo4 o twardości 47 HRC w warunkach frettingu. Temperatu...
THE EFFECT OF PRESSURE – ROLLING OF WELDED TURNOUTS AND RAILROADS ON THEIR WEAR RESISTANCE
The article presents the effect of cold-rolling welded joints in railway lines on their mechanical and tribological properties. Welded joints of high-manganese Hadfield cast steel (L120G13) and normalized rail steel (R35...