[Robotgroup] MG Chemicals "Tip Tinner"

[Def Egge]

At 16:58  2007-11-20, you wrote:
-=-=-=-=-= begin quoted message =-=-=-=-=-

 >Gray Mack wrote:
 >> on a tip that had worn past the outer coating, I didnt
 >> find the tinning stuff to do much of anything, the tip
 >> continued to wear down to a concave nub with usage.
 >
 >I only have a single use to testify to, so I'd have to bow to more
 >experience.. I wonder if it would work if you 
filed the surface of the
 >
 >tip before immersion? I still want to get one to try out. :)
 >
 >Vern
 >
 >
 >--
 >Vern Graner CNE/CNA/SSE    | "If the network is down, then you're
 >Senior Systems Engineer    | obviously incompetent so why are we
 >Texas Information Services | paying you? Of course, if the network
 >http://www.txis.com        | is up, then we obviously don't need
 >Austin Office 512 328-8947 | you, so why are we paying you?" ©VLG
 >_______________________________________________
 >Robotgroup mailing list
 >Robotgroup at puremagic.com
 >http://lists.puremagic.com/cgi-bin/mailman/listinfo/robotgroup

-=-=-=-=-= end quoted message =-=-=-=-=-

Sometime back, I read that the tips were a cast 
copper alloy, iron-plated, then nickel-plated.

The problem is in getting the tinning material 
(or any solder) to adhere to (and flow along) the 
bare copper core.  It sticks well to the 
nickel-plating and somewhat less well to the iron-plating below that.

Iron-plating copper was a bitch last time I tried 
that many years ago.


-- 

All the best....

Mike