| 摘要 |
The procedure for protecting the surface of a metal object or substrate to enhance its friction resistance, especially at high temperature, consists of forming a supple strip by serigraphy from a viscous material containing a bonding agent and a super-alloy metal powder with a preferable grain size of 40 - 65 mcm. The supple strip is cut out to the dimensions of the surface to be protected, and is applied to it before heating the assembly to a temperature above the melting point of the bonding agent but below that of the metal powder. The substrate is of an alloy based on Fe, Ni and Co, and can be in the form of a cam surface (24) interacting with a roller (22) to operate a shutter (10) on a jet engine. |
