LUBRICANT COATINGS

AVAILABLE TECHNICAL SOLUTIONS

High-accuracy adjustment of mechanical parts : aeronautics, armaments, nuclear

Fretting corrosion concerns damage caused by corrosion at the level of contact between two metallic surfaces in a relative movement with each other. This phenomenon can be emphasized  by a galvanic couple depending on the setting, when the compared metals are of different material.

It especially happens when the interface is subjected to vibrations (repeated relative movement of two touching surfaces) and to compressive loads.

This relative movement can be very small (small oscillation around some µ). In the presence of a continuous friction movement in a corrosive environment, we will preferably use the word « tribocorrosion ».

Our means to reduce this corrosion are the use of auto-lubricating coatings ; the friction is thus limited and oxygen is excluded from the surface. Our PTFE-based treatments or others (FEP ; Mos²) are used in the sector of fine mechanics. For some sectors (aeronautics, armaments, space, nuclear…), we are capable of coating pieces in very strict tolerances (3µ+/-1µ) for which a 100% dimensional control can be executed before and after treatment (Microflon® range).