[ Log On ]
Exploring the: Anodizing Zone
|
Sort by: |
- 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
- Painting Anodized Aluminum
- Can you tell me the pros and cons of painting anodized aluminum?
Ask an Expert Published: 3/31/2011
- 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
- “Cracking” of the Anodic Coating Under High Temperatures
- After anodizing, the parts are annealed at 100°C. Most of the time they will withstand this process without damage, but sometimes the anodic coating cracks. I would like to ensure that they never crack at 100°C.
Ask an Expert Published: 2/18/2011
- Anodized and Dyed Black Extrusions Turning Green and Purple
- We notice that the black extrusions have a greenish cast to them when we receive them from the anodizer. When the parts are exposed to plant lighting and to indirect sunlight, they turn a purplish color after six months or less.
Ask an Expert Published: 2/18/2011
- Producing a Thick Anodic Coating on 6061-T6
- Our customer has requested .004-inch (100µ, 4 mil) coating thickness on 6061-T6. We normally anodize this part to .002-inch thickness. Our process is 28 V, bath temperature 32°F, for 1 hr. We are not sure of exactly what the best procedure is to har...
Ask an Expert Published: 1/11/2011
- "Snowflake" Corrosion on Anodized Aluminum Parts
- One of our customers sends their extrusions to an outside anodizer near their plant. They sent us some samples of their anodized parts that were exhibiting a condition that looked like small snowflakes all over the part.
Ask an Expert Published: 1/11/2011
- ASTM Test Comparison
- What is the difference between ASTM B136-84 and B-136-77 for the Modified Dye Stain Test?
Ask an Expert Published: 8/1/2010
- Black Power on Die Casting After Anodizing
- After anodizing there is a loose, black powder that can be removed just by touch. Can you tell me why this happens and recommend a method to prevent it?
Ask an Expert Published: 8/1/2010
- Dying Anodized Parts With Small Holes
- We send our 6061 aluminum bars to an outside anodizer for Type II anodize and black dye. These parts have several very small diameter, blind holes, both threaded and non-threaded. When we get these parts back from the anodizer, the tapped holes will...
Ask an Expert Published: 8/1/2010
