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March 1999

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Subject:
From:
"McMonagle, Michael R." <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 12 Mar 1999 08:20:53 -0600
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Steve,
        I've got to agree with you on Impell, they make a great unit.
When this shop was first set up, we ran 2 Heller 1800 ovens and a wave
solder using their units for about three months until standard venting
was installed. We still have the units, and use one for venting our
stencil cleaner. The other one has been used for temporary venting of
conformal coat operations, mini-wave fountains, etc. Filters can be
expensive, but so's your health. Though them little 2 headed frogs are
kinda cute....

P.S. - Let's vindicate Steve's math once and for all. Take a second
today to send an EMail to someone and tell them about TechNet and how to
subscribe. There's 1777 of us, we should be able to push this thing over
2000 pretty easy. The more the merrier, it encourages spirited
discussion.

Mike McMonagle
PCA Process Engineering Supervisor
K*Tec Electronics
1111 Gillingham Lane
Sugar Land, TX  77478
(281) 243-5639 Phone
(281) 243-5539 Fax
[log in to unmask]

> -----Original Message-----
> From: Stephen R. Gregory [SMTP:[log in to unmask]]
> Sent: Thursday, March 11, 1999 10:49 PM
> To:   [log in to unmask]
> Subject:      Re: [TN] Solder Fumes...
>
> n a message dated 3/11/99 6:10:15 PM Pacific Standard Time,
> [log in to unmask] writes:
>
> > Steve after the 3 days you spent in your wave solder machine you
> >  probably just need to spit on it to turn it red. :}
> >
> >  -Russ
> >
> >  My personal opinion is no soldering station should be without a
> fume
> >  extraction system.  Personally I love the smell of burnt flux.  It
> means
> >  were makin money. (and I got enough kids)
>
> Hi Russ...
>
>     Yeah, these past few days I would say I've probably got my daily
> FDA
> requirement of lead additives, but I'm pretty good about washing my
> hands
> every single time after working on it before I eat or smoke. That darn
> old
> conveyer chain lube you wear for days though...unless you wanna get
> some Comet
> and take a couple of layers of skin off..  |:>(
>
>     I also do my de-drossing in the evening AFTER everybody else has
> left,
> WITH my face filter on...bad part about doing it late like that is
> that my
> breath isn't the normal sweet scent of ambrosia that it is in the
> morning..
> (:>D  (you learn that real quick when you put a face mask on!)
>
>     One thing I remembered to do when I had the ducting for the wave
> exhaust
> installed back when we opened up 'bout a year ago, was to run a short
> length
> of duct off to one side of the main duct at the exit end, and had a
> hood made
> a little bigger than the solder pot.
>
>     When you crank the pot out the hood is right above the pot. I had
> them put
> a butterfly valve in the main duct just below where I put the short
> section. I
> could close it and divert all the suck to the solder pot hood.
>
>     When I'm de-drossing I see can any dust generated go right up the
> exhaust...so I'm not spreading it all over the production floor...let
> the
> pidgeons on the roof deal with it, they've pooped on my car
> anyway...(hmmmm,
> thinking about it, maybe that's WHY they're pooping on my car!)
> Actually, I
> don't think much dust gets out, I'm pretty careful about not making a
> buncha
> dust, and what does go up the exhaust probably sticks to the flux
> residues
> coating the inside of the duct.
>
>     One last thing on fume extractors, until I worked for Zevatech, I
> didn't
> really think too much about how the machines were exhausted at shows
> like
> NEPCON when I attended. But then after working a few shows I became
> very
> impressed with Impell systems. That's what's used to exhaust
> everything down
> at the TAC line. Their systems make a lot of sense once you look into
> them. No
> holes in the roof, can move your line anywhere you want, lower air
> conditioning costs...something to think about. Only reason I didn't
> exhaust
> using Impell here was that there was an existing fan on the roof and
> it was a
> little bit cheaper to go the traditional route...couldn't quite
> convince the
> powers that be to spring for a few more bucks. (I'm convinced it would
> have
> been cheaper in the long run though)
>
> -Steve Gregory-
>
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