Investigation of the influence of Ti-Al-Cr-N coating on the surface condition of cooling compressor elements

Abstract

Elements of refrigeration compressors, may be exposed to various types of wear processes. The presence of the refrigerant makes the lubricating and anti-wear properties of the oil-medium mixture much worse than the oil without refrigerant. The paper presents the effect of using the Ti-AI-Cr-N coating on the surface condition of friction junction occurring in compressors of chillers. The tests were carried out using a model friction machine simulating the element of a refrigeration compressor.