Coating Question
Coating Question
(OP)
At our plant we are refurbishing a mixer that we use to mix our propellent. Part of the reason of the refurbishment is because the paint is flaking off in some areas in particular this part the mixer carriage. We can't allow any paint flakes in our process. The mix bowl is slid into the mixer carriage and then bowl is lifted up with the carriage. A lot of paint has chipped and flaked off. We were originally going to fabricate a new carriage out of stainless steel but it's time prohibitive. Some people have suggested powder coating and some have suggested electroless nickel plating. Which would be good for this application? Does electroless nickel plating hold up to pieces being slid across it and being impacted?
Thanks
Thanks





RE: Coating Question
Alex
RE: Coating Question
Thanks
Chip
RE: Coating Question
"The plating process is not hot enough to warp parts"...I love when the supplier says that...I work with parts requiring 0.5 micron (20 millionths of inch) in size and geometry so I must re-grind after plating.
You should contact a source for plating and have them look at the parts. I find the chrome is nicer but every application is different. The plating source can help you choose.
Alex
RE: Coating Question
although pretty, it requires copper or nickel prestrikes to get a somewhat durable coating.
electroless nickel is an amorphous coating, that is rather tough. additional hardness can be achieved with heat treatment. i've been getting all my parts EN plated because of the simplicity of the process and attractiveness of the final part. coating thickness is easily controlled as well, and coating is done at near room temperature.