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| 殼牌潤滑油系列 > 殼牌航空潤滑油 > AEROSHELL FLUID 3 |
| AEROSHELL FLUID 3 詳細說明 （瀏覽1725次） |
AEROSHELL FLUID 3
AeroShell Fluid 3 is a general purpose mineral lubricating oil
recommended for general lubrication of aircraft parts that require a light oil
with good low temperature characteristics and a low freezing point. It is
inhibited against oxidation and corrosion. AeroShell Fluid 3 is a relatively
low viscosity product with good resistance to evaporation.
APPLICATIONS
AeroShell Fluid 3 is recommended for general lubrication of aircraft parts
that require a light oil, e.g. hinges, pivot joints, shaft joints, linkage pins
and bearings, pulleys, cables, camera mechanisms, radio and radar gear
and instruments. AeroShell Fluid 3 is normally applied by means of an oil
can or brush. For this reason it is also described as ‘an oilcan lubricant’.
Operating temperature range of AeroShell Fluid 3 is -54°C to +121°C.
For high temperature applications where no provision is made for frequent
re-lubrication the synthetic oil, AeroShell Fluid 12, should be used in place
of the mineral oil, AeroShell Fluid 3; however in this case care should be
taken to ensure that there is no incompatibility between AeroShell Fluid 12
and seals, paints etc.
SPECIFICATIONS
U.S. Approved MIL-PRF-7870C
British Approved DEF STAN 91-47
French –
Russian –
NATO Code O-142
Joint Service Designation OM-12
www.shell.com/aviation
230
Other Fluids
PROPERTIES MIL-PRF-7870C TYPICAL
Oil type – Mineral
Kinematic viscosity mm
2
/s
@ 38°C 10 min 10.0
@ ?40°C 4000 max Less than 4000
Flashpoint
Cleveland Open Cup °C 130 min 155
Pourpoint °C ?57 max Below ?57
Evaporation @ 99°C, 22hrs %m 25 max 13
Total acid number mgKOH/g – 0.3
Relative Density @ 15.6/15.6°C – 0.89
Low temperature stability
72 hrs @ ?54°C Must pass Passes
Oxidation & corrosion stability
168 hrs @ 121°C
– metal weight change Must pass Passes
– viscosity change % ?5 to +20 10
– acid number change
mgKOH/g 0.2 max 0.02
Corrosivity Must pass Passes
ASTM colour – < 0.5
A viscosity/temperature curve is shown at the end of this section. |
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