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Exploring the: Anodizing Troubleshooting & Quality Control Zone
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- Parts Burning During Hard Anodizing
- What could cause parts to burn during hard anodizing?
Ask an Expert Published: 11/7/2012
- Rinsing Blind Holes Prior to Dying
- I have problems with leaching from blind holes in black anodized parts.
Ask an Expert Published: 10/31/2012
- Color Matching
- We have an accepted color that we are using for a dyed anodized finish on 6061. Over the years, the approved color somehow went from an original production run coupon to a standard Pantone color. Unfortunately, the Pantone color doesn’t match the ap...
Ask an Expert Published: 8/3/2012
- Hardcoat Anodize Thickness Problem
- During the anodizing cycle, how can we check to see if the coating thickness is reaching the thickness requirement stated on the drawing?
Ask an Expert Published: 2/1/2012
- Is it Anodized or Not?
- What would be the best way to indicate whether or not an aluminum part has been electro-polished and anodized?
Ask an Expert Published: 2/1/2012
- Technical References for Anodizing
- Are there any resources to read and keep on hand as references for troubleshooting appearance issues?
Ask an Expert Published: 2/1/2012
- Blistering of Anodic Coating on 7075 Alloy
- We are facing a blister problem on 7075 alloy inside the bore diameter of our cylinder base. We noticed that this problem is occurring during dyeing process and not after hard anodizing.
Ask an Expert Published: 10/25/2011
- Chromic Acid Anodize Failing Salt Spray Testing
- We are performing salt spray testing on 2024 and 7075 alloy test panels that have been Type I (Chromic Acid) anodized. The test panels have been sealed in DI water at 96°C (205°F) for 25 min. The panels fail the salt spray test within 24 hr.
Ask an Expert Published: 5/1/2011
- When Black Dye is Not Black
- We are sending aluminum extrusions to our outside anodizer for Type II anodize and black dye, and we are encountering several problems, notably that the newly black anodized parts exhibit a greenish tint.
Ask an Expert Published: 5/1/2011
- Salts Build-up Around The Top of The Cathodes
- The aluminum cathode bars in our Type II anodizing tank have become completely encrusted with white “salts” at the solution/air interface.
Ask an Expert Published: 2/18/2011