 Why
should I use Thermal Diffusion Coatings?
As the original
North American supplier of the Thermal Diffusion
(TD) process we bring you unparalleled experience in the tool coating
business. Couple that with the fact that TD technology extends
the service life of tools and other wear related components 10 to
12 times over tools that are not treated and you have an
unbeatable combination. With TD you're producing product instead
of changing tooling or crawling in a die to work on it. The
result is higher production and decreased downtime.
The reason TD
provides such an increased service life is that it is an extremely
hot process (1800°F). During the Thermal Diffusion process carbon
from the tool surface combines with the element Vanadium to grow
a Vanadium Carbide layer that is metallurgically welded
to the substrate of the tooling.
This method
of thermally diffusing a Vanadium Carbide layer into the surface
creates a non-porous, sealed adhesive bond that is far stronger
than any deposited coating. Coatings such as nitriding, carbo-nitriding,
hardening, and cryogenic treatments are not like TD. They do not
seal the surface, change the nature of the tool surface, or protect
the substrate.
 TD
is a super pure, ultra dense carbide coating that completely
covers the part and bonds below the surface. The carbide is .0002
to .0003" thick with a hardness of 3,500 to 3,800 Hvu (Vickers hardness),
well above 90° Rockwell C.
Better
adhesion means longer service life. TD will not chip, peel,
or spall off the substrate. It is also extremely durable and provides
excellent protection from both adhesive and abrasive wear. The result
is increased uptime and production schedules that stay on track.
TD provides
exceptional wear resistance and increased performance on metal forming
tooling, high wear machine parts, perishable tooling, shear and
stab blades, punches, rolls, extrusion dies, cams, tube mandrels,
tube mill rolls, and other steel surfaces.
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