| Abstract:Blade is the important part of the coating machine, it directly affects the coated paper quality and production efficiency. With the coating machine speed increasing, traditional (uncoated) blue steel blade or tool steel blade can not meet the requirement of the high speed coating machines, because of its short life. It is necessary to develop high wear resistant coating blade with metal or ceramic carbide (WC/Co) coated layer. Plasma spraying and other methods have been used to prepare various ceramic materials coated steel belt in order to improve the service life of the coating blade. But the coated layer obtained by the current technology is not dense enough and with high porosity. We used domestic ultrasonic flame spray coating HVAF system successfully manufactured the coating blade with WC10Co4Cr coated layer, its quality was comparable to the imported similar products. |
