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nuckolls.bob(at)aeroelect
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 Posted: Wed Jun 19, 2013 5:34 pm Post subject: 63/37 "Body Solder" |
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Found this interesting offer on eBay . . .
[img]cid:.0[/img]
The product offered is indeed supplied in cast bars
just like those used in body shops but if anyone would
purchased this item with the notion of doing body work,
they would be exceedingly disappointed.
Body solder alloys have a large 'plastic' range between
solid and liquid. I suspect an alloy like 40/60 would
be useful to a body shop. 63/37 has no plastic range.
About the time the user thought the solder was ready
to mold into the desired shape, it would melt and simply
fall on the floor.
This solder is, in fact, intended to charge the well
of liquid solder that is pumped over a 'wave' for soldering
electronics.
We got our first wave soldering machine at Electro-Mech
about 1978. We would take a week's production of board
stuffing and solder them in about an hour. Sounds neat . . .
but . . .
We had to build racks to hold many hundreds of boards
in a ready-to-solder state. The board then needed to
be cleaned of the flux oil that was used to protect the
surface of the wave. The machine became sort of a bottle
neck for production where large quantities of un soldered
and cleaned/soldered boards accumulated on both sides.
It was not conducive to the way we did business. We had
several dozen products of many sizes most of which were
on boards too small to solder individually
on the machine . . . so another problem presented when
we were obliged to lay out multiple boards on a sheet,
stuff, solder, clean and then cut them apart. In aviation,
you have few customers that want hundreds of parts in
a single delivery. More likely a hundred parts is a
two or three year supply that gets delivered 6 pieces
a month! So effective use of the wave solder machine
caused us to invest a lot of $time$ into finished goods
inventory that might not move for months. The machine
took 6+ hours to set up and a couple of hours to clean
up after a run while one hour of time actually soldering
product was several weeks worth of product flow.
Don't remember what we spent for the machine but I do
remember seeing it sit back in a storage area for years
after our 'experiment' in labor reduction. There were
several hundred pounds of 63/37 bar solder in crates
stored beside it. Who ever made the decision to buy
would have served the company well by going to see how
folks used the machine and figuring out if it was a
real 'fit' for us.
Bob . . .
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uuccio(at)gmail.com
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| Posted: Wed Jun 19, 2013 8:33 pm Post subject: 63/37 "Body Solder" |
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Sort of like buying a Ferrari to drive on a gravel road...
Very interesting insight Bob.
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rparigoris
Joined: 24 Nov 2009
Posts: 792
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