Cup tappet, method for coating cup tappets and use of plasma spraying for coating cup tappets

摘要

In a process for coating cup tappets, a powder mixture is applied as coating (25) by the plasma-spraying process to a surface (26) of the cup tappet consisting essentially of an aluminium alloy. The powder mixture contains molybdenum (Mo) and molybdenum trioxide (MoO3), the oxygen content of the mixture being between 2% and 8%. IMAGE