need some help.. please

[Scott_becks]

hey all, im having a really hard time defining "traction co-efficient" in regards to refrigeration oils.. have searched high and low for a definition but to no avail.. i posted this question elsewhere but cant find my post .. so if someone could help me it would be greatly appreciated.. thanks alot..

[Josip]

Hi, Scott_becks

hey all, im having a really hard time defining "traction co-efficient" in regards to refrigeration oils.. have searched high and low for a definition but to no avail.. i posted this question elsewhere but cant find my post .. so if someone could help me it would be greatly appreciated.. thanks alot..

Is this what you want

Titre du document / Document title
Traction properties of blended oils
Auteur(s) / Author(s)
YANO Akihiko (1) ; TOZAKI Yasuyoshi (1) ; HAYASHI Noriyuki (1) ; WATANABE Shintaro (1) ; MATSUMOTO Susumu (1) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Nagasaki Research & Development Center, Mitsubishi Heavy Industries, Ltd., 717-1 Fukahori-machi 5-chome, Nagasaki-shi, Nagasaki 851-0392, JAPON
Résumé / Abstract
The effect of the intensity of interactions between oil molecules on the establishment of the additive property was studied in relation with the determination of the traction coefficient of blended oils. Speaking more in detail, oils with strong and weak interactions between molecules were intentionally prepared and their atmospheric viscosity, their viscosity-pressure coefficient a and their maximal traction coefficient were determined. The obtained results enabled to establish that (1) in the case of synthetic naphthene oil/naphthene type mineral oil system with weak interactions between molecules, the additive property was established in terms of the ratio of blending, the atmospheric viscosity, the viscosity-pressure coefficient a and the maximal traction coefficient, but (2) in the cases of cyclohexanone/cyclohexylamine system and cyclohexanone/1,2-diaminocyclohexane system forming two-molecule or three-molecule associates with hydrogen bonds between molecules, the additive property in the above terms was not established. The above results were considered in the correlation with the activated volume in the process of flow of blended oils.

found this here: http://http://cat.inist.fr/?aModele=afficheN&cpsidt=1091093

http://www.tribotesters.com/tribolog...oefficient.php

http://www.idemitsu.co.jp/e/lube/top.../traction.html

Hope this will help

Best regards, Josip

[Scott_becks]

thanks josip.. great help... talk again soon..