David S. Peterson
Removing Solids from the Waste Stream
Question: We have several vibratory finishing machines using a fast cutting ceramic media.
Read MorePassivation of 420 Stainless Steel
Question: I have recently read a very informative article on passivation at www.pfonline.com, however I did not recall seeing anything specific to 420 stainless.
Read MoreCast Iron Surface Preparation
Question: We are a small manufacturer of air compressor pumps.
Read MoreStains on Plated Parts
Question: I work for a plating company that deals with plastic plating.
Read MoreComments on Cleaning with Trichloroethylene
Question: In your August 2001 column, I read your answer to the question on outsourcing cleaning with TCE.
Read MoreStripping Paint Fixtures and Racks
Question: Can someone hook me up with a company that can strip paint from paint fixtures or racks from my paint shop?
Read MorePassivation of 440C Material
Question: Can you explain what would cause 440C material to etch in a passivation bath of sodium dichromate/nitric operated at 120F?
Read MorePolishing Stainless Steel Screws Revisited
To the readers: In my June 2001 column I answered a question regarding options to polish stainless steel screws.
Read MoreChemical Machining of Aluminum
Question: We are a UK finishing equipment manufacturer and have an application where our client needs to chemically machine aluminum parts by masking and etching away selected areas with alkaline etchants.
Read MoreInfo on PM&M?
Question: I just bought a used sandblasting cabinet and need a manual for it.
Read MorePassivating Stainless Steel
Question: Recently, we had to resurface a small section on a piece of stainless steel equipment.
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