| Hard
Anodize
Color
will vary from light tan to black depending on alloy
and thickness. Can be dyed in darker colors depending
on thickness. Coating PENETRATES base metal as much
as builds up on the surface. The term THICKNESS includes
both the build up and penetration. Provides very hard
ceramic type coating. Abrasion resistance will vary
with alloy and thickness of coating. Good dielectric
properties. Corrosion resistance is good, but recommend
seal hard anodize in 5% dichromate solution where
increased corrosion resistance is required. Where
extreme abrasion resistance is required, do not seal
as some softening is encountered.
|
| Type
III |
As
specified on drawing. If not specified nominal thickness
shall be 0.002"- ±0.0004" |
Most
aluminum alloys depending on process used. Where maximum
serviceability or special properties are required, consult
metal finisher for best alloy choice. Thick coatings
(over .004") will tend to break down sharp edges. Typical
applications: hydraulic cylinders, wear surfaces, actuating
cams, etc. Can be used as an electrical insulation coating.
"Flash" hard anodize may be used instead of conventional
anodize for corrosion resistance and may be more economical
in conjunction with other hard anodized areas. Hardcoat
anodize is available with teflon impregnation also. |
