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Materiale Plastice
Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
ISSN Print 0025-5289
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Materiale Plastice (Mater. Plast.), Year 2015, Volume 52, Issue 4,





GEORGE ENCIU, IONEL PAUNESCU Research on Improving the Reliability of Copper Alloys Parts by Polyester Coating


Abstract:
Polyester coating of copper alloys is part of the technological procedures meant to improve the performances of metallic parts in order to reduce the rate of premature removal from operation. The paper highlights the positive influence that copper alloys coating with polyester impregnated with 5 - 10% graphite has on the main mechanical characteristics, especially the wear resistance. The effects on the wear, fragility and structural modifications have been determined on Amsler testing machine by means of roller-roller type couplings: polyester coated copper alloy - treated copper alloy; treated copper alloy - treated copper alloy. The comparison revealed the positive influence of the thin layer of polyester as lubricating agent, thermal barrier, electrical insulator, damping layer, and stress dissipation medium it also established the temperature limit up to which it is recommended to use the polyester coating in industrial applications. Keywords: polyester, graphite, cooper alloys



Issue: 2015 Volume 52, Issue 4
Pages:
Publication date: 2015/12/30
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