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Surface preparation for coatings and other technological operations

Surface preparation consist in making micro- or macrorelief in form of
fins or pinfins. DC obtained reliefs has the property of forming a locking
connection with the applied coating or glue. Adhesive bond is supplemented
by a mechanical anchoring connection.
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Fig.
1 - Ceramic (Al2O3)
coating on steel |
Fig.
2 - Tungsten carbide coating
on steel shaft |
Fig.
3 - Polymeric Repair Composite
with ceramic ("Belzona") between fins |

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Fig.
4 - Tungsten carbide between
fins |
Fig.
5 - Cohesionless polymer (Teflon,
Ultra-high molecular weight polyethylene etc) prepared for gluing |
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