Authors: Ngo Xuan Cuong, Le Thu Quy, Nguyen Tuan Anh, Do Thanh Tung – Key Laboratory of Welding Technology and Surface Treatment – National Research Institute of Mechanical Engineering;  Institute of Tropical Technology – Vietnam Academy of Science and Technology

Published in: Proceedings of the National Scientific Conference on Hydraulic Machinery and Automation Systems 2021

Publication date: 2021

Abstract: This paper presents the research results on fabricating an NBR rubber coating on pump casings. There are three process parameters for fabricating the NBR rubber coating on steel substrate: curing temperature 135°C, pressure applied to the rubber surface 30 kgf/cm², and curing time 30 minutes. The mechanical properties of the obtained rubber coating include: tensile strength 11.8 MPa; elongation at break 530%; residual elongation 33.2%; hardness 66 ShoreA; abrasion resistance 1.78 cm³ / 1.61 km; peel strength 7.5 MPa; and shear strength 18.8 MPa. The obtained results show the potential for applying this technological solution to effectively protect sand pumps and mineral slurry pumps against corrosion.

Full paper: view the full paper at here