Vacuum Metallization
Vacuum Metallization
(OP)
Hello, I have a question about the Vacuum Metallization using a vacuum chamber. I was a a place today where they make spot lights for vehicles and they use this process for coating the inside of the lights to give it the shiny difuser.
They were speaking about the firing sequence. Apparently there is about 2500 amps flowing through the electrodes. My question is, is this AC or DC current?
This is the first time I have seen this process and it was quite interesting.
Thanks again
Andy
They were speaking about the firing sequence. Apparently there is about 2500 amps flowing through the electrodes. My question is, is this AC or DC current?
This is the first time I have seen this process and it was quite interesting.
Thanks again
Andy





RE: Vacuum Metallization
Dan - Owner

http://www.Hi-TecDesigns.com
RE: Vacuum Metallization
So I need to look at sourcing a DC meter then.
Thanks for the help
Andy
RE: Vacuum Metallization
What is a CT?
John D
RE: Vacuum Metallization
RE: Vacuum Metallization
Operahouse, thanks for reply. I understand the the level of danger involved with this current level. I am trying to get some more information on this CT. So its output is AC, is this correct?
thanks again
Whippee
RE: Vacuum Metallization
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Vacuum Metallization
A CT normally has a very low voltage output when connected to a current meter. However, if it is not loaded by a current meter the voltage can be fairly high. Never try connecting the meter when the apparatus is operating.
RE: Vacuum Metallization
Clarification:
...isn't powered off, discharged and safety Locked-Out.
"...operating" leaves too may openings.
RE: Vacuum Metallization
Andy