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Anonymous Poster

difficult to control dyne color in spray painting

02/18/2008 5:10 AM

I need get help for difficult to achieve color in a spray painting process? every batch/lot give different result?

Regards,

Surface.
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cnpower
Guru
Engineering Fields - Control Engineering - New Member China - Member - New Member

Join Date: Sep 2006
Location: CHINA
Posts: 2945
Good Answers: 14
#1

Re: difficult to control dyne color in spray painting

02/18/2008 5:23 AM

equipment?

control mentod?

more detail needed.
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surface
Associate

Join Date: Dec 2007
Posts: 31
#2
In reply to #1

Re: difficult to control dyne color in spray painting

02/19/2008 2:33 AM

equipment - auto spray system using LVMP gun, nozzle dia 0.7mm.the part are continue to feed and spray before go to flash off zone at room temp for 7 mins, oven 8 mins with 70 degree C.

paint system: 3 layer PU system.

used air to control.

atomization air able 2 bar
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Ydobon
Associate

Join Date: May 2007
Posts: 47
#3
In reply to #2

Re: difficult to control dyne color in spray painting

02/19/2008 1:28 PM

Exclude 02 from your spray gas.

SC
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surface
Associate

Join Date: Dec 2007
Posts: 31
#4
In reply to #3

Re: difficult to control dyne color in spray painting

02/20/2008 12:30 AM

Thanks Ydobon, What type of gas to be use? N2 & etc?

surface
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cnpower (1); surface (2); Ydobon (1)

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