No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Electroless nickel onto Thyroplast 2316





I am having a problem plating electroless nickel on a material called THYROPLAST 2316.The chemical composition being C 0.36% Cr 16% Mo 1.2% .We have tried using a woods nickel with 1 min anodic etch followed by a 2 min cathodic strike and then electroless nickel (12% phosphorous ) 12 microns thick. We are experiencing a flaking of the coating , to the base metal after using the mold (a PVC insert) The problem occurs on the mold insert after 2 weeks of operation at 150 c . Normal cleaning cycles which we originally used (as we at that stage did not know what we were dealing with ) are worse .We would appreciate any ideas

John Danks
electroplating - Durban RSA.
1998



2000

HI JOHN,

YOU MIGHT TRY WITHOUT THE REVERSE CYCLE. JUST LET THE PART STAND IN THE WOODS FOR A MINUTE. THEN PLATE FROM VERY LOW VOLTAGE (4-5V) TO 10V. ALSO, CHECK FOR CONTAMINATION IN YOUR WOODS, ESPECIALLY CU AND CR

G.MARRUFO

Guillermo Marrufo
Monterrey, NL, Mexico




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully 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 might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"