High-Pressure Pumps Evolution and Wear Analysis Methods

The wear analysis is a basic step for assessment of the functioning of mechanical systems and helps to the products improvement. The service life of the assemblies is approximate depending on the level of wear of their components. Starting from the product prototype phase, all components are tested and very carefully analyzed. This kind of analysis depends on the fault type and also the analysis devices are chosen in view of this. The Scanning Electron Microscope is one of the most used equipment which provides images with very good resolution at nanometers sizes. The classic microscopes are very often used for surface analysis or measurements. Hardness tester and adhesion measurements devices help to evaluate the material hardness and coatings adhesion. The improvement of the wear analysis methods is necessary due to continuing evolution of the materials and production processes. This paper presents the most common wear types from the injection high-pressure pumps and their analysis methods.