Go For The Gold
Q: How can I remove gold from my rinse tanks? I. V.
A: Your best bet is to use a suitable ion-exchange resin that removes gold. There are commercially available units that will do this. You should also talk to your vendor of gold salts about this. They should be able to supply you with a unit or recommend somebody that can.
Why is it important for you to know this?
The reasons for installing an in-house cold blackening system are many and varied.
Masking is employed in most any metal finishing operation where only a specifically defined area of the surface of a part must be exposed to a process. Conversely, masking may be employed on a surface where treatment is either not required or must be avoided. This article covers the many aspects of masking for metal finishing, including applications, methods and the various types of masking employed.