Powder Stripping
We have an aluminum casting from which we need to remove powder coat. We have investigated sanding and chemical, but the heat process may have a very negative impact on the part shape. What are your thoughts?
Wanting to Shine
How can I remove the factory coating from a 1972 ford truck aluminum grill shell so I can re-polish it?
#automotive
BLACK SUBSTANCE ON RAG
We are yellow chromating aluminum alloy 360 die castings. After processing, a grey/black material appears on rags used to wipe the parts. What is this material, and can it be prevented?
Removal Of Cured Powder
Can you recommend a blast cabinet and the best abrasive to use?
Cause of Warping
We removed several belt guards and put them in our wheel blaster—a rotating table blaster. It removed the paint to perfection, but warped the parts so extensively that we had to hammer them back into shape.
Measuring Liner Thickness
Is there a non-destructive way to measure liner thickness in our centrifugal disc finisher?
Evaluating Acid Concentration by Titration
When performing a titration to evaluate the acid concentration we get a coalescing of black material in the solution as the end point is approached. Does anyone have an idea what this substance may be? Any suggestions?
Cleaning Pre-Shot Peen
I am wondering what is commonly done to clean newly machined aluminum parts prior to shot peening?
Response to Spray Wand Phosphatizing
I read in the June 2006 addition of the Parts Cleaning Clinic your answers to the Phosphate Cleaning Systems question, where someone was using a spray wand phosphatizer at a pH of 2.0 and wanted to increase their quality (www.pfonline.com/articles/clinics/0606cl_clean3.html). Hopefully, I can add to your answers:
New Vibratory Finishing Compound Wearing Down Too Fast
What component of the compound causes this accelerated media wear and could it also harm machine parts such as the urethane liner?