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Q.
What is KELTRACK®?
A. KELTRACK® is Kelsan's
trademark name for the liquid form of
our friction modifier HPF (High Positive
Friction). There are 5 different formulations
of KELTRACK® customized for various
applications including trackside, on-board,
and hi-rail. To get more information
on these solutions click on the following
links: KELTRACK®
Trackside Transit, KELTRACK®
Trackside Freight, KELTRACK®
On-Board Locomotive, KELTRACK®
HiRail.
Q. What is the difference between
a lubricant and a friction modifier?
A. A lubricant is designed to
reduce the coefficient of friction on
the gage face of the rail and the wheel
flange. On the other hand, a friction
modifier is designed to control top
of rail friction at an optimum level
(0.3-0.35) in a manner that will not
affect braking or traction. Friction
modifiers can solve a more wide range
of problems such as noise,
rail
& wheel
wear, fuel
consumption & green house gas emissions,
lateral
forces, and short
pitch corrugations.
Q. Why choose LCF over grease or
oil as a lubricant?
A. Unlike grease or oil, LCF
does not migrate to the top of the rail,
which can potentially cause wheel slip
and/or braking problems. LCF is more
environmentally friendly than grease
or oil. Also, LCF does not attract dirt
and contamination because LCF either
comes in solid stick form or rapidly
dries to a solid film when applied in
liquid form. Kelsan offers three LCF
products: LCF
OnBoard Sticks Transit, LCF
OnBoard Sticks Freight,
Liquid LCF.
Q. How difficult are HPF and LCF
On-Board Sticks to maintain?
A. Once the brackets for the
sticks are installed they are virtually
maintenance free. The interlocking feature
and application design allows for easy
refilling of HPF
OnBoard Sticks Transit, LCF
OnBoard Sticks Transit, and
LCF OnBoard Sticks Freight.
Q. Are Kelsan products environmentally
friendly?
A. Yes, Kelsan solid sticks are
non-flammable
as defined by certain test procedures.
All Kelsan products are non-toxic
to fish by standard testing.
Q. How do you measure rail friction?
A. Coefficient of friction readings
are measured using the de facto industry
standard Tribometer manufactured by
Salient
Systems.
Q. What is stick slip?
A. Stick slip is a micro cyclical
displacement and rolling behavior at
the wheel/rail interface during a curve.
This can lead to the formation of short
pitch corrugations and the creation
of vibration in the wheel web, which
emanates as a high pitch squeal.
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