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August 8, 2018
Aluminum Metal and Coatings

Aluminum Metal and Coatings

Aluminum castings have been used in various industrial application for nearly two centuries. As a material, aluminum has inherent qualities that make it a highly desirable material for use in mechanical parts. Aluminum is a lightweight, easily machinable metal with good thermal and electrical conductivity, Aluminum also has several drawbacks. It quickly oxidizes and wears rapidly. Because aluminum is relatively soft, it is susceptible to dings, scratches and galling. Adding a protective coating is one means of overcoming the negative aspects of aluminum, although each coating option comes with its own consequences. The options for coating aluminum include: 1] Anodizing 2] Plating – Nickel, Gold and Chrome, 3] Chemical Films 4] Powder Coating   Anodizing Anodizing is a process by which the surface of the aluminum is artificially oxidized to create a protective coating. Oxidized aluminum is extremely durable. Chemically, it is inert, as demonstrated by its relationship to alternative forms of the […]
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