Doug:
It would not apply to it. I do not have experience curing using IR
ovens, only convection ovens. I do know that some CCs are mostly solvents so
that they can spread under the components and conform to the bodies on the
board. These types give out a lot of gases and can be overpowering, that is
why ovens are vented. Does the CC you are working with cures in minutes? Is
that why your process uses an in line oven to cure the coating? Except for
parylene and UV light cure CC, most take hours to cure. Unless there are
some new ones out there I am not aware of.
Regards,
Ramon
> -----Original Message-----
> From: [log in to unmask] [SMTP:[log in to unmask]]
> Sent: Monday, December 08, 2003 9:11 AM
> To: [log in to unmask]; Dehoyos, Ramon
> Cc: [log in to unmask]
> Subject: Re: [TN] IR Ovens
>
>
>
>
>
> Ramon,
> Thank you for the observation, but I have a question. I agree that an
oven
> with an enclosed workspace needs to be the Class A explosion proof
variety,
> but does this same restriction apply to an IR tunnel where you have air
> access on either end of the machine, i.e. not an enclosed work space?
>
> Doug Pauls
>
>
>
>
> "Dehoyos, Ramon"
> <ramon.dehoyos@NG To: [log in to unmask]
> C.COM> cc:
> Sent by: TechNet Subject: Re: [TN] IR Ovens
> <[log in to unmask]>
>
>
> 12/08/2003 07:52
> AM
> Please respond to
> "TechNet E-Mail
> Forum."; Please
> respond to
> "Dehoyos, Ramon"
>
>
>
>
>
>
> Any oven that deals with flammables needs to be vented and
> explosion
> proof. To make ovens explosion proof, the manufacturers seal an extra
vent
> with a breakable material on the back of the oven so that in the case of
an
> explosion the gas goes towards the back and not hurt any one. Two cents on
> safety.
> Regards,
> Ramon
>
> > -----Original Message-----
> > From: Doug Pauls [SMTP:[log in to unmask]]
> > Sent: Friday, December 05, 2003 4:43 PM
> > To: [log in to unmask]
> > Subject: [TN] IR Ovens
> >
> > Good day all,
> > We are having some internal conversations about the use of IR tunnel
> ovens
> > for the curing of certain organic materials, most specifically a coating
> > with a flammable solvent. Do any of you use IR conveyor ovens,
> preferrably
> > benchtop models for drying or adhesive cure, that you have been happy
> with?
> > If so, make and model please.
> >
> > Thanks.
> >
> > Doug Pauls
> > Rockwell Collins
> >
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