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Use hard coat anodizing when you need to give an aluminum surface the
hardness of casehardened steel while maintaining the lightweight and
strength of the aluminum, For that, you need
Duralectra. We make extensive use
of the Sanford Process®,
a hard anodize process that is so versatile it enables us to
hardcoat virtually all alloys (including 2000 series).
The Sanford Process®
is the leading technology in the global hard coat anodizing market.
Advantages of the Sanford Process®
include the capability of hard coat anodizing 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.
Developed more than forty years ago, hard coat anodizing is an
electrochemical process that involves placing an aluminum part into an
electrolytic bath and applying electrical current through the bath. This
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.
Coating Properties: The coating properties are
dependent upon alloy type and the process specification will typically
give details of: Thickness, Corrosion Resistance, Hardness & Wear
Resistance, Electrical Resistance, Temperature Resistance, and Friction
Coefficient after Lubrication
Hard Coat Anodizing Quality:
Duralectra is a NADCAP
approved vendor for the major aerospace and commercial
contractors. We certify to government and commercial specifications
Duralectra uses the following
standards when Anodizing 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, Duralectra
applies Taber Testing, Coating Thickness, Coating Weight and Salt Spray
Testing using an outside testing laboratory.
Hard Coat Anodizing To
MIL-STD-171
Anodizing Aluminum: Hard
Anodizing
Anodizing Aluminum:
Processing Standards
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