Difference between revisions of "T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)"

Revision as of 10:28, 9 November 2012

Both the Ball On Cylinder Lybricity Evaluator (BOCLE) and the Scuffing Load - Ball On Cylinder Lubricity Evaluator work on the principle of testing the lubricity of a fuel/lubricant. A non-rotating ball is forced against a rotating cylinder. The cylinder is partially immersed in a bath of the fuel to allow the fuel to be constantly carried to the area of contact.

The BOCLE & SL-BOCLE machines operate on much the same principals. They are nearly identically constructed. They differ in: 1) The types of fuels they typically test. 2) The qualifying parameters and test methods (See ASTM link below). 3) The maximum load they can carry.

In this Table some basic differences are presented:

Parameter BOCLE SL-BOCLE

Fuel Aviation Diesel ASTM D5001 D6078 Applied load 1 000 g (500 g weight) 500 g break in

                                                                  500 to 5 000 g (incremental

Duartion 30 min 30 s (break in), 60 s (per load) Qualifying parameter Wear scar size, shape and appearance. Load carrying ability, µ >= 0.175

Documentation

User Manual

A single user manual exists for both machines.

ASTM Standards

MSDS of relevant Chemicals

Wiring diagrams

History of this Equipment

The equipment was recieved from Sasol in 2012 after being used there for a period of time. The equipment was conntected to the OPTO 22 network in 2012 by Jacques Langenhoven to allow data logging and control through the lab network and OPTO system.

Current/Previous projects

2012

Jacques Langenhoven, The commissioning of the BOCLE & SL-BOCLE in the Tribology lab