You know some where in an article I read something along the lines of. Not to confuse film strength with oil viscosity. Film strength is determined by how the bonds between the molecules hold together under extreme heat and pressure. And that the thickness of an oil is determined by the length of the molecular chain.quote:
i'm sorry you wrong, oil Film Strength does NOT RELY ON THICKNESS!!!
RP's 0w7 Race oils. protect more than ANY other oil when used in the correct application, they almost thinner than water, and you say they reliant on VI...
You need to get rid of the theory of thicker is better my friend...
Who better to specify those parameters and put them into context than you? Just telling us film strenght isn't just this or that, why not be a little bit more concrete and define if for us, if possible.quote:
Given the above, Film Strength looks to be a very general term that is kinda' meaningless unless many of the other parameters involved are specified and are put into context.
Interesting. Is that your personal definition, or is that out of something such as a Tribology handbook? Do you consider it to be a general property, or a more specific one with physical quantities that can be expressed in terms of combinations of basic dimensions?quote:
Originally posted by bruce381:
Film strength to me is a oils level of perfromance to reduce or eliminate oil film rupture due to grit, load or asperities in the rotating elements. "wear"
Improveing the "film Strenght" can be done with anti scuff additives OR increasing the oil Viscosity.
bruce
Out of my head 32 years triboligy CLS.quote:
Originally posted by 427Z06:
Interesting. Is that your personal definition, or is that out of something such as a Tribology handbook? Do you consider it to be a general property, or a more specific one with physical quantities that can be expressed in terms of combinations of basic dimensions?quote:
Originally posted by bruce381:
Film strength to me is a oils level of perfromance to reduce or eliminate oil film rupture due to grit, load or asperities in the rotating elements. "wear"
Improveing the "film Strenght" can be done with anti scuff additives OR increasing the oil Viscosity.
bruce
So in other words, there is no "official" specific definition with physical quantities that can be consistently expressed in terms of a combinations of basic dimensions?quote:
Originally posted by bruce381:
Out of my head 32 years triboligy CLS.
As I remember that is the general deffinition it is some what of a gereral property of lubricants.