Ultrasonic cleaning

[Ron W4RON]

I use an Ultrasonic cleaner a lot in my workshop.
If I'm cleaning plastic parts I use a couple of drop
of Dawn dishwashing liquid in warm water in a 400ML
beaker that I them set in my water filled U/C tank.
Let it run until the water turns dirty.

For coroded metal parts I use swimming pool acid
in warm water in the same beaker. I never put acid
in my U/C tank.
You have to watch it close as the acid will eat plating
off if you leave it too long.
I have a bowl of water with a little baking soda dissolve
in it to rince the parts after the acid bath.

Works great, I've been doing it for years.


--
73, RON w4ron
http://radioheaven.homestead.com/menu.html
http://cloughbrengle.homestead.com/ 



---- Bob Jackson <bob at NOFROWNS.NET> wrote: 
> 1st - Happy Turkey Day to all!
> 
> 2nd - I'm considering buying a small ultrasonic cleaner (usc) to de-gunk small parts from neglected radios that I'm restoring. Without buying "official" usc fluid, what would be a good substitute(s)? I'm thinking a 1:1 of water and 409 or something similar.
> 
> Also, I read an article recently where the user didn't put the parts directly in the fluid. Rather, he filled the usc tank with water and then put the parts in a seperate container with the usc fluid and then put that container in the usc. He claimed that the usc vibrations would "shake" the second container enough to clean the parts and therefore he wouldn't ever have to drain/clean the usc tank. Comments? Suggections?
> 
> 73 and thanks,
> 
> Bob  AG5X
> 
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