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Sea-Land Chemical Europe represents some of the most trusted brands and companies in the industry to provide you with the quality you demand. We stock many products, providing you the right chemicals, right away.


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Building 21S, Middlewich Road Industrial Estate Middlewich Road, Byley, Cheshire, CW10 9NT, UK


Tel. +44 (0)1606 830145 | www.SeaLandChem.co.uk


value for tackiness (Figure 4b) during each test are easily calculated and can be statistically evaluated. The result of a triplicate test (same grease, fresh samples each time) shows a good repeatability of pull off force and tackiness.


for different greases. In this way various industrial greases can be easily and accurately compared as shown in Figure 5.


the pull-off force and tackiness of greases under standardised conditions and also allows to vary the conditions depending on an industrial application. For instance, the size, material and roughness of the indenter body can be freely changed, the approach and retraction speeds are variable.


Falex Tribology NV aims in providing a useful tool for evaluating the adhesive properties of industrial greases and putting a value on the tackiness characteristics. In this way developers and end-users would be able to differentiate between available greases and select the one that fits better to ‘their’ application, whereas grease producing companies can quantitatitvely evaluate the quality of their product.


1


S.Achanta, M.Jungk, D.Drees, Characterisation of cohesion, adhesion and tackiness of lubricating greases using approach-retraction experiments, Tribology International 44 (2011) 1127-1133.


Figure 5: Quantitative statistical analysis of (a) pull-off force and (b) tackiness of five industrial greases.


Figure 4: Evolution of (a) pull-off force and (b) tackiness for grease 2 (triplicate test).


Statistical analysis of these multiple tests, can provide vital information on the trend of the pull-off force and tackiness


Conclusion The approach-retraction methodology combined with the Basalt-N2 high precision sensor provide us with a tool that is capable of evaluating repeatably


LINK www.falex.eu


Test equipment link:


http://falex.eu/en/tetra-precision- tribometers/tetra-basalt174-n2- tribology-precision


LUBE MAGAZINE NO.132 APRIL 2016 19


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