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Casidiam
can be applied to a variety of Surfaces.
Use this page to find out
if Casidiam is right for your application.
Materials
- Applies to non-porous metals Casidiam does
not apply to porous metals such as brass, cast iron, sintered
materials, and similar metals. For other materials, call.
Surface finish
Casidiam provides maximum benefits on smooth surfaces. A finish
of 6 microinch or better is desired. Some parts to which Casidiam
is applied, such as wrist pins, are 0.02 to 0.05 microinch.
Unlike Plasma Vapor Deposition (PVD) processes that require
a rough surface for a film to mechanically bond, Casidiam
is a Plasma Assisted Chemical Vapor Deposition (PACVD) process
that bonds chemically and mechanically. Chemical bonds are
about 9 times stronger than mechanical bonds. Performance
is application dependent, and generally, the smoother the
surface, the better Casidiam adheres and performs.
Surface
Condition
On a production basis, components to be coated need to be
new and unused. For initial trials, if used, Casidiam can
be applied if contaminants are removed through a bead blasting
or other similar process. Grinding and polishing after may
be required. Residues from any heat treating process must
be removed from the surface. Oxidation (rust) blocks Casidiam
from coating to the surface, even microscopic size oxidation.
Residuals from polishing processes should be removed prior
to coating. Casidiam is not applied to coated surfaces, although
exceptions apply. Call for coating over other coatings.
Other
Surface Effects
Residual magnetism should be removed. Heat treating effects
that impart high quantities of other elements to the surface
of metals may block the coating process. Call if your components
have these effects.
Surfaces
To Coat Components must be fixtured in the
processing unit during coating. Surface(s) in the plane or
side to be fixtured will not be coated. Three types of surfaces
should be specified:
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- Surfaces
that must be coated.
- Surfaces
that may be coated but not mandatory.
- Surfaces
that must not be coated.
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Edge Effects Casidiam will coat over sharp
edges, such as 90 degree breaks. To avoid coating on surfaces
adjacent to coated ones may require masking. |