Product Introduction:
The Ball-on-Cylinder Lubricity Evaluator (BOCLE) Test Instrument is used to measure wear condition of aviation turbine fuel on
friction steel surface. Test principle: put the test sample into
the test oil pool, keep the relative humidity of the air in the
pool at 10%, fix a non rotating steel ball in the vertically
installed chuck, make it face an axially installed steel ring, and
add load. The test cylinder is partially immersed in the oil pool
and rotated at a fixed speed. In this way, the cylinder can be kept
in a wet condition and the sample can be continuously transported
to the ball / ring interface. The diameter of the wear mark on the
test ball is a measure of the lubricity of the sample.
Main features:
1.The Ball-on-Cylinder Lubricity Evaluator (BOCLE) Test Instrument
adopts colorful LCD display, which can visually operate and display
the whole process of the test;
2.Simple interface: computer controls all instrument functions;
3.The standard ASTM D 5001 test program is preloaded into the ABT
microprocessor controller: the operator installs the cleaned test
piece, adds the fuel sample and presses the "start test" button;
4.The Ball-on-Cylinder Lubricity Evaluator (BOCLE) Test Instrument can automatically control test sequence: the measurement process
does not require operator intervention;
5.The automatic flow controller controls the humidity and dry air:
the operator is not required to control and regulate the humidity
and air flow;
6.Interchangeable humidity and temperature probes: humidity and
temperature measurement do not need to be recalibrated, just
replace the combined relative humidity and temperature probes with
the exchange pre calibration unit;
7.Heating and cooling system: Peltier heating and cooling system;
8.Digital microscope is equipped with image acquisition system and
software;
9.All parameters is displayed directly: motor speed, test time,
fuel temperature, air temperature, humidity data, etc;
10.The Ball-on-Cylinder Lubricity Evaluator (BOCLE) Test Instrument is supplied with ultrasonic cleaner.
Technical Parameters
| 1 | Sample volume | 50 ± 1.0mL |
| 2 | Sample temperature | 25 ± 1 ºC |
| 3 | Fluid ambient temperature | +5.0 ~ +35.00 ºC |
| 4 | Air with adjusted temperature and humidity | the relative humidity at 25 ± 1 ºC is 10 ± 0.2% |
| 5 | Air flow rate into the sample | 0.5 L/min |
| 6 | Air flow rate on sample surface | 3.3 L/min |
| 7 | Sample pretreatment time | 15 min |
| 8 | Air flow rate on sample surface during measurement | 3.8 L/min |
| 9 | Applied load | 1000g (500g weight) (± 1g) |
| 10 | Drum speed | 240 ± 0.5 RPM |
| 11 | Test time | 30 ± 0.1 min |
| 12 | Data acquisition and analysis | motor speed, fuel temperature, air temperature, humidity and test
time |
| 13 | Test ring | dia 49.25 to 49.10, THK 13.11 to 13 (SAE 8720 steel, hardness 58 to
62 RC, surface finish RQ 0.51 to 0.71 micron) |
| 14 | Test ball | 12.7mm (0.5 inch) (AISI 52100 steel, hardness 64 to 66 RC) |
| 15 | Power supply | 230V AC, single phase, 5A |
