• In one step, clean and remove laser
edge, weld oxide, rust and oils
• Non-scaling
• Long tank life
• Control fash rust
513.874.1113
email info@calvaryindustries.com
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EPSI Makes Custom Easy
Prototypes for form and fit test in as
little as 1-2 days
Production parts in 6 weeks or less
Backed by the EPSI Guarantee - It works or
we fix it for free!
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masking solution - AND
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YOU CAN CONDUCT A FORM
AND FIT TEST IN as little
as 1-2 DAYS!
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Sulfamate Nickel Problem
Q. We use sulfamate nickel plating baths. Testing bath
composition shows an increase in chloride content from
week to week. What causes the increase in chloride
content? Also, what happens if the chloride concentration
becomes high?
A. When a sulfamate nickel plating bath is formulated with
chloride ions, nickel chloride is usually used as the source
of the ion to aid in the dissolution of the anode. In many
cases the bath is used without the presence of chloride ion.
The simplest way to reduce chloride ion concentration is to
dilute the bath and bring other components up to the required
concentration. What causes the chloride ion concentration to
increase? There are a number of potential culprits:
• An operator made incorrect additions of nickel
chloride to the plating bath
• The makeup water you are using contains chloride ion
• The use of HCl to control pH
• Drag-in from a prior process tank
I suggest you investigate each of these possible causes
with particular attention to the quality of your makeup
water and drag-in from a prior processing tank. Chloride ion
increases the stress in your nickel deposit. Excessive stress
can cause cracking and peeling of the deposit.
PRODUCTS FINISHING — pfonline.com
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