finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

HomeFAQsBooksHelpWantedAdvertiseForum
(current
topics)
topic 5986

Problem in Electroless Nickel Coating on Al6061


(2000)

I use the following EN bath for Ni-B plating on Al6061:

NiCl2.6H2O, Glycin, DMAB (Dimethyl amino borane), Pb(CH3COOH),T=71 oC,pH=6.7 (adjusted by NH4OH).

The Deposition rate is 4um/hr. By increasing the concentration of Ni ions in solution, The deposition rate increases, but the morphology of the surface does change and becomes fragile. I would appreciate if somebody could give me any idea. What is the best accelerator which I can add ionto the bath to increase the deposition rate?

Thanks

N.Dadvand
- Halifax, Canada


(2000)

1. Why do you use Electroless based on B? For most applications a low phosphor EN will do and it is much easier to operate.

2. I can see that you use a home made EN solution. A well balanced EN solution contains more ingredients than you use in your formulation. For a higher plating rate you will probably need a proprietary EN solution.

sara michaeli
sara michaeli signature 
Sara Michaeli
chemical process supplier
Tel-Aviv, Israel




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

ADD a Q or A to THIS thread START a NEW THREADView CURRENT TOPICS

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


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.