THE EFFECT OF AN ADDITIVE ON THE WEAR OF THE NODES WORKING IN A MIXED LUBRICATION AREA
Journal Title: Tribologia - Year 2012, Vol 244, Issue 4
Abstract
This paper presents the results of the experimental work on the modification of the operating conditions of working nodes using three preparations: two that create ceramic layers on the surfaces of elements and one modifying the surface layer by chemical reaction. Investigations were carried out using a standard four-ball extreme pressure tester. Specimens were lubricated with Castrol Magnatec Diesel 10W-40 without additives (as basic oil) and with Castrol Magnatec Diesel 10W-40 with the addition of preparations of 10% or 0.1% by volume. To assess the lubrication efficiency of the tested compositions, three criteria were used (limit load Fg, limit wear load index Goz, and wear characteristic as the function of load d = f(F)). Comparative quantities were taken from the Polish standard PN-76/C-04147 „The tests of properties of oils and greases”. The results were statistically handled at a confidence level of 95% using Student’s t-test. After assessing the working efficiency of tested additives in Castrol Magnatec Diesel 10W-40 oil, a favourable reaction was noticed but improvements of determined quantities fundamentally depends on test materials. It was found that the additives are not always cost effective.
Authors and Affiliations
Tadeusz Leśniewski, Michał Krawiec, Piotr Kowalewski
Keywords
Related Articles
- EP ID EP270453
- DOI -
- Views 63
- Downloads 0
BADANIA LABORATORYJNE ZUŻYWANIA ELEMENTÓW PRZENOŚNIKÓW TAŚMOWYCH DO MAS FORMIERSKICH
W artykule zaprezentowano wyniki badań dotyczące zużywania się elementów podajnika taśmowego wykonanych z różnych materiałów. Na potrzeby eksperymentu zbudowano stanowisko badawcze, odzwierciedlające rzeczywiste warunki...
Właściwości tribologiczne powłok elektrolitycznych ze stopów niklu po obróbce cieplnej
W artykule omówiono właściwości tribologiczne (zużycie liniowe) elektrolitycznie nakładanych powłok ze stopów niklu Ni-Mo i Ni-W zawierających pierwiastki węglikotwórcze Mo i W po poddaniu ich obróbce cieplnej lub ciepln...
LABORATORY IDENTIFICATION OF THE FRICTION PROCESS IN THE FRICTIONAL PAIR CAST IRON-CAST IRON
This paper presents an original method of a laboratory determination of the frictional process parameters in pair cast iron-cast iron. The structure of the test stand and the test samples are described, and a description...
EFFECT OF GAS NITRIDING PROCESS ON TRIBOLOGICAL PROPERTIES OF CONSTRUCTIONAL STEEL
The paper presents the results of examinations of the structure and tribological properties of nitrided layers produced on constructional steels with use of controlled gas nitriding. The nitriding layers structure, hardn...
Antiwear properties of lubricants modified with metal particles
The paper presents an influence of lubricant modification with metal particles addition on wear process of tribological couplings elements. Combinations of various materials working in mixed friction condition at rotatio...