Power Supply?

[machinist_1]

I am starting an anodizing line in my machine shop. I figure I need to handle 30sqf at a time. So a 400 amp power supply should do it (I think). I have a 600 amp dc welding machine with amp and volt adjustment. Would this work?
Thanks for any Info.

[Tim Wiltse]

I don't believe the welder is going to cut it as a power supply. I believe there is to much ripple in the output on top of other things to work for our needs. I am sure Fibergeek or someone else can go into detail on the subject for you.

LAter,
Tim

[machinist_1]

Thank you

[acidrain]

30 sq. ft. @ 4 amps per sq. ft. C.D. = 120 amps
30 sq. ft. @ 6 amps per sq. ft. C.D. = 180 amps
You need a constant current (CC) power source for anodizing.
Voltages at those currents will be somewhere in the 10 to 15 vdc (depending on alloy, temperature and electrolyte).
Hope that helps.

[dnosti]

ASF

Guys

Generally speaking anodizing type II has a thickness of .5 to .7 especially for good dying. Of course many have been successful with lower numbers but most industrial accounts now maintain .5 to .7 . At 6 amps per sq ft it takes 60 minutes to reach .5 thickness. I suggest that you bump the asf up to 10-12 asf to have a reasonable time in the tank.I'm sure Caswell can supply a DC power supply that can help you out

Drew

[sswee]

You talking about a CD outside the parameters of LCD anodizing. There is more to it than just turning up the juice to reduce run times. Your talking about a different acid concentration, more problems with tank cooling and a higher voltage demand to supply the necessary current. The PS Caswell offers now is capable of 10-12 ASF.