In a message dated 8/3/98 3:00:44 PM Pacific Daylight Time,
[log in to unmask] writes:
>>Thomas-
>>We do use Kleenox to de-dross our solder pot. Its effects as an ongoing
preventer of >>dross are questionable as it seems to burn off after about an
hour (our pot is at 475F). It >>is effective in separating the dross from the
solder when actually removing the dross. >>The stuff needs to be mixed in
thoroughly with the dross and the dross seems to >>separate rather easily from
the rest of the solder. Its cost seems to be less than that of >>more solder
additions and more frequent dross shipments for reclamation.
>>Ryan Jennens
>>Phoenix Engineering Design
Moss, Thomas wrote:
>>> Hello all,
>>> I've been lurking on the list for awhile, but I thought I'd come
>>> out of hiding to ask some questions.
>>> I want to try some Kleenox "P" to reduce the amount of dross
>>> from our Wave Solder pot. Does anyone out there have any good or bad
>>> experiences with its use? Will its repeated use leave a residue or
>>> contamination in the solder? Are there any downsides that I'm not
>>> thinking of? Lastly, was it cost-effective for you to use?
>>>
>>> Thanks in Advance,
>>> Tom Moss
Hi Tom!
Ryan pretty much hit the nail on the head as far as Kleenox goes...it
won't really prevent dross from forming, even though they claim it does. BUT,
like Ryan said, it DOES make the dross separate from the solder better when
you're cleaning your pot out, and you do save money in that sense. In a
typical mornin' pot de-drossing, I would throw at least a couple of pounds of
the shiny stuff in the dross bucket, but when using Kleenox that amount is
reduced by at least half...
Speaking of wave soldering subjects, I have a pretty off the wall
question for anybody. Today I bought a very small static solderpot that we'll
using for tinning and what-not...after I unpacked it, I went and got a couple
of bars of solder to fill it. The bars were a little long to go in the small
static pot, so I cut them in half to put in the pot so they could melt easily.
Well, when I cut the bars in half, I saw something I've never seen before (or
never noticed), inside the bar, at about the middle of it. There's something
that's tin/lead in appearance embedded inside the solder bar! Just what the
heck is that? Some secret herbs and spices? (Oh wait, the secret herbs and
spices is kentucky fried chicken's hook, not Kester's...hehehe)
It doesn't appear like it's a different metal, but it does appear that
something was added there permanently to into the solder. Anybody have any
idea what that is? Oh, I'm using Kester Ultrapure 63/37...if you've never seen
this either and have some Kester bar solder, take a bar and cut one in
half...it looks like there's something a bit smaller than the diameter of a
pencil that is embedded inside the solder bar and runs almost the whole length
of the bar. It's weird, it's probably been there whole time, but I 've never
noticed before because I usually don't cut solder bars in half to fill a
solder pot.
-Steve Gregory-
################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe: SUBSCRIBE TechNet <your full name>
To unsubscribe: SIGNOFF TechNet
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################
|
