ASTM D5001 Ball-on-Cylinder Lubricity Evaluator (BOCLE)

KN-5001 Ball-on-Cylinder Lubricity Evaluator (BOCLE)

Overview

KN-5001 Ball-on-Cylinder Lubricity Evaluator (BOCLE) conforms to ASTM D5001 Standard Test Method for Measurement of Lubricity of Aviation Turbine Fuels by the Ball-on-Cylinder Lubricity Evaluator (BOCLE). The fluid under test is placed in a test reservoir in which atmospheric air is maintained at 10% relative humidity. A non-rotating steel ball is held in a vertically mounted chuck and forced against the outside diameter of an axially mounted cylindrical steel ring with an applied load. The test ring is rotated at a fixed speed while being partially immersed in the fluid reservoir. This maintains the ring in a wet condition and continuously transports the test fluid to the ball/ring interface. The wear scar generated on the test ball is a measure of the lubricating property of the fluid.

Features

1. Adopts PLC control system for fully automatic process.

2. Adopts semi-conductor for heating and cooling, it features short time cost and accurate temperature controlling

3. The gas relative humidity adjustment adopts a high-precision gas mass flow controller, which features fast adjustment and small drift, improving testing efficiency

4. Adopts touch screen operation to make all related parameters clear

5. Equipped with microscope and camera system, also adopts coaxial light illumination technology for binocular observation, with a clear and bright field of view. The long focal length objective lens makes it easy to take and place steel balls, and the electronic micrometer measures the size of wear spots accurately and quickly

6. Adopts the standard assembly to improve the test accuracy

Standard Operating Conditions

1. Fluid volume: 50±1.0ml

2. Fluid temperature: 25±1℃

3. Fluid pretreatment: 0.5L/min flowing through and 3.3L/min over the fluid for 15min

4. Cylinder rotational speed: 0~240rpm (when speed is 240rpm, error should be within 1rpm)

5. Maximum test force: 10N

6. Applied load: 1000g (500g weight)(±1g)

7. Test force display error: ±0.5%

8. Test force display repetitive error: ±0.5%

9. Conditioned air: 10%±0.2%, relative humidity at 25±1℃

10. Test duration: 30±0.1min

11. Relative humidity: (10±0.2)