Electropolishing 301 stainless steel
Electropolishing 301 stainless steel
(OP)
We are experiencing problems with electopolishing .025" thick x 7" round discs of 301 stainless steel. The supplier says that water spots are the cause.
The parts are blanked on a die and then washed. The detergent is an alkaline material and is used in an industrial spay washer. Compositon by weight % is as follows:
5-10 % potassium hydroxide
5-10 % sodium silicate
10-20 % tetrapotassium pyrophosphate
5-10 % 4 Na ethylene diamate tetra acetate
After the parts are washed, they are heated in a oven at 600 degrees F for one hour. The suppier claims the electropolishing operation will not remove the spots.
Can this be possible?
The parts are blanked on a die and then washed. The detergent is an alkaline material and is used in an industrial spay washer. Compositon by weight % is as follows:
5-10 % potassium hydroxide
5-10 % sodium silicate
10-20 % tetrapotassium pyrophosphate
5-10 % 4 Na ethylene diamate tetra acetate
After the parts are washed, they are heated in a oven at 600 degrees F for one hour. The suppier claims the electropolishing operation will not remove the spots.
Can this be possible?
Talk To Other Members
RE: Electropolishing 301 stainless steel
( unless it is alcaline or contains HFl -- both unlikely )
Try silicateless cleaner or treat a sample with hydrofluoric
acid.
<nbucska@pcperipherals.com>
RE: Electropolishing 301 stainless steel
on SS -unless it has solids dissolved in it.
<nbucska@pcperipherals.com>
RE: Electropolishing 301 stainless steel
RE: Electropolishing 301 stainless steel
Thanks for the response.
grayseal