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Hard Coat
Aluminum processing of aluminum has been provided by D-CHN for over 40 years. You can find aluminum
parts and products processed by D-CHN: on the moon, under the sea, in hospitals, schools, laboratories,
factories, and in your own home.
What is hard coat anodizing? Developed more than forty
years ago, hard coat is an electrochemical process that involves
placing an aluminum part into an electrolytic bath and applying
electrical current through the bath. The hard coat process forms an
oxide coating (sapphire-hard) on the aluminum part. The oxide coating
is built up by a process of anodic oxidation in a cooled acid
electrolyte, thus preventing any thermal or physical distortion of
precision-engineered components. This oxide coating can be harder than
case hardened steel and provide excellent abrasion resistance; it is
protective to the aluminum part and can be very durable.
The thickness of the hard coated piece is very closely
controlled and is applied to a wide variety of parts to suit
applications from many industries. Secondary treatments such as
impregnation with solid film lubricants and colored dyes are available.
When you need to give an aluminum surface the hardness
of casehardened steel while maintaining the lightweight and strength of
the aluminum, you need D-CHN.
We make extensive use of the Sanford Process®,
a hardcoat process that is so versatile it enables us to hard coat
virtually all alloys (including 2000 series).
Today, D-CHN is solving anodizing finishing problems
and supplying quality finishes for all of the following industries:
| Medical and Pharmaceutical |
Marine Accessories |
| Consumer Products |
Industrial Machinery |
| Hardware and Tools |
Automotive |
| Computer Components |
Military Suppliers |
| Gears and Pulleys |
Advertising Specialties |
| Writing Instruments |
Electronics |
| Cookware and Serving Pieces |
Camping and Hiking Equipment |
| Cosmetics and Fashion |
Aerospace Technologies |
| AND MORE |
The Sanford Process® is the leading
technology in the global hardcoat market. Advantages of the Sanford
Process® include the capability of hard coating all
aluminum alloys, higher abrasion resistance, superior coating hardness
and uniformity, higher thermal conductivity and corrosion resistance,
and the ability to dye with bright vibrant colors.
D-CHN uses the following standards when Hard Coating
Aluminum (Sulfuric Acid): Mil-A-8625, Type III, Class 1 and 2, BAC-5821
Class 1 and 2, AMS-2468, and AMS-2469. Testing for Inorganic Chemical
Treatments, D-CHN applies Taber Testing, Coating Thickness, Coating
Weight and Salt Spray Testing using an outside testing laboratory. We
are a NADCAP approved vendor for the major aerospace and commercial
contractors. We certify to government and commercial specifications.
About D-CHN
For more than forty years, DCHN has been polishing its reputation for unsurpassed excellence. With DCHN's
strict quality controls in place, we've become an industry leader and provide state-of-the-art anodizing and
metal-finishing services covering a wide range of customer needs such as aluminum and titanium anodizing,
electro-polish and passivation, as well as other related services. Discover how our services can work for you.
D-CHN is an ISO 9001:2000 certified Company. All of our processes are validated IQ, OQ, PQ to ensure
consistency of service. The company is regularly audited by the most demanding customers from the medical,
aerospace, nuclear, and other high tech fields.
D-CHN provides a range of additional services that take cost, complexity, and time out of our customers supply
chain decisions.
D-CHN has a modern production facility and contains one of the largest processing capacities of Anodizing and
Hardcoat Anodizing for consistent, economical and fast processing of both large parts and large quantities.
D-CHN is a subsidiary of Katahdin Industries Inc. More information can be found at
www.katahddin-inc.com.
Hard Coat Aluminum Finishing Services
Available at D-CHN
One Shorr Court •
Woonsocket, RI 02895
Tel - (401) 597-5000 • Fax - (401) 597-5485
© 2010 D-CHN LLC
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