Aluminum Anodizing Types and Terms
Types of Aluminum Anodizing
- is
a technique used to coat the exterior of a metal with a protective film.
- is a process through which the surface of
an anodized coated with a protective black dye.
- refers
to the pretreatment step before anodizing, which takes place in a bath of
acids and creates a bright, shiny finish.
- is
a process that provides corrosion resistance and makes the aluminum
surface electrically conductive. It also provides a superior surface
condition for the application of paints, powder coats and adhesives.
- preoxidizes
the aluminum surface for a clear, uniform finish.
- is when a colored coat is applied to the exterior
of a metal.
- provides a thin coating of aluminum oxide that is
tightly bonded to the surface of the aluminum. This method offers
corrosion resistance and aesthetic appeal, as well as makes the aluminum
surface electrically non-conductive.
- is a variant of
anodizing. It produces similar results to standard anodized
surfaces, but the thicker and denser hard anodic film limits the
coloring results to dark tones.
- is
the filling of internal cracks, voids and corroded pockets, which would
otherwise cause castings, forgings and powdered metal parts to leak.
- is used most often in the jewelry segment
of the industry, as it has less occurrence of skin allergy than
any other metals.
Aluminum Anodizing Terms
-
The process of using friction to grind and wear away at a surface.
- Changing a metal
surface into a chemically-active state.
- A substance with metallic
properties composed of two or more chemical elements. At least one element
must be metal.
- An intermediate step
in the production of aluminum from bauxite.
- A sheet that
has suitable metallurgical characteristics and surface quality for the
development of protective and decorative films by anodic oxidation processes.
- The chemical environment
in which the anodizing takes place.
- Joining metals together
by flowing a layer of molten filler metal between them.
- The application
of chromate conversion coating on aluminum.
- The gradual chemical
or electrochemical wearing of a surface. Also, this is the deterioration
due to environmental forces.
- A white mineral used
in making aluminum
- The removal of burrs,
sharp edges and fins by mechanical, chemical or electrochemical means.
- Dressing metal edges
by rolling, filling and drawing.
- An alloy of aluminum
and at least one other metal that is used to make additions to molten
aluminum.
- Undesirable elements
in aluminum compounds.
- A substance used
to reduce the rate of a chemical or electrochemical reaction, commonly
corrosion or pickling.
- The minimum
temperature at which a metal will melt.
- Changing a chemically
active metal into a passive state.
- The process of laying
a thin coat of metal on another.
- Microscopic openings
in an anodized surface, leading to a microscopic tube. Although porous,
the anodized surface is very dense and hard.
- The electrically-conductive
device used to hold the parts to be anodized as they are lowered into
the bath. Racks are made in different sizes, types and shapes to hold
the large variety of parts and products encountered in anodizing.
- Aluminum
that is in a very pure state.
- Fusing or melting ore
in order to extract or refine the metal it contains.
- Longitudinal lines
that are not uniform, caused by uneven coating.
- The maximum
stress a material can withstand.