The friction is recorded and displayed during the test along with the number of cycles. The test is automatically stopped if the maximum friction force or time is reached. Additional extras include microscope and camera, vertical displacement sensor and acoustic emission sensor Pin on disc. The Teer Coatings POD-2 is a computer controlled pin on disc tester used for tribological testing and to provide a quantitative measure of the wear and friction properties of a coating. Testing can be carried under a wide range of loads and speeds, with the use of different wear track diameters allowing a number of tests to be performed on one sample.
Frictional force is detected, recorded and displayed by the computer both during and after the test.
The test is automatically stopped if the maximum friction force or time is reached. From the resulting plot of friction versus time the friction coefficient and lifetime of the coating can be determined. This method is used for measuring coating thickness and revealing the presence of brittle interfaces or defects within a coating. Producing a ball crater section on top of a wear track or a scratch test can reveal the amount of wear that has occurred during a test, and the manner in which a coating has failed. The above equipment is available in-house at Teer Coatings Ltd as a testing service.