A website for Serious Education, promoting Aloha,
& the most FUN you can have in metal finishing
on this site FORUM
I have been asked to deposit hard chrome (.000050-.0001) over an electroless nickel surface (.015-.020) which has been post baked
@400F (returned to the mfg.) then diamond turned. It must be a
"clear" (no discoloration/cloudiness) coating... Any ideas outside of a cathodic, sulphuric activation?
- Frankfort, Illinois
Since you are going to plate in Cr you could activate the part in the chrome solution by applying just enough current to give the part a hydrogen wash but not enough current to plate any Cr. After the wash just ramp up the current to plate.
Atotech - Rock Hill, South Carolina
This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site
Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.
If you need a product/service, please check these Directories:
JobshopsCapital Equip. & Install'nChemicals & Consumables
Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices
How Google uses data when you visit this site.