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HARD NICKEL
We plate sulfamate nickel on steel components to build up worn areas. Recently we have found that the nickel is very hard and almost impossible to machine properly. What might cause this problem?
Read MoreBLACKENING OF STAINLESS STEEL
We are looking for information on a simple process for blackening of Type 420 stainless steel needles. The blackening should be permanent, corrosion-resistant and medically acceptable. Since the needles are small in size, the method should be capable of processing in bulk.
Read MoreRUSTING PARTS
Our customer requires a steel part to be plated with both nickel (0.00015–0.00030 inch) and zinc (0.00025–0.00030 inch). The part is sterilized in an autoclave prior to use. Why is it rusting, and how do you suggest we solve this problem?
Read MoreCAN’T RECOAT
As you know, stripping and recoating is very costly in terms of time and labor. We are now applying a new baking enamel coating that is very durable. We tried touch-up and recoating by spot repair and total recoating with a durable air-dry paint, but we can’t get the touch-up paint to adhere to the damaged parts. Is recoating products a common problem? What can we do about it?
Read MoreA Conversation With...Matt Kirchner
Products Finishing readers know well our Never Finished columnist Matt Kirchner.
Read MoreSPRAY BOOTH SELECTION
We are in the process of setting up a painting system for our products. Our application is spray painting of large and medium-sized castings. I would be obliged if you could advise me on which type of booth is better for my application.
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