Re: Galvanized metal welding
- From: "Ted" <edrule@xxxxxxxxxxx>
- Date: Tue, 30 May 2006 15:12:32 -0500
Thanks for the great info all.
In regards to the dangers of welding galvanized metals . . . the advice is
EXTREMELY valid as I have found out the hard way.
Several years ago I wanted to do something about the sagging floors in an
old house. I looked at the commercial jack posts on the market and decided
to save a few bucks and make some from galvanized metal fence posts. Once I
got them situated and I cranked the nuts to raise the bolts against the beam
I noticed the bolt was turning with the nut. So I decided to weld the bolt
head to the metal top plate that I had screwed to the beam. I also decided
to weld the washers that the nut sat upon on top of the post so they
wouldn't shift under the torque pressure.
I figured it wouldn't take long and I could hold my breath long enough to do
the job. WRONG!! Before long my head was in a white cloud and I needed air.
So I thought, "O.K. Just a few tiny breaths".
A few days later I went to the appointment I'd made at the VA because my
sinuses and brain didn't seem right. They sent me to get X-Rays. The tech
there accused me of moving during the first two X-Rays, so he had someone
watch me through a window. When he came back in he said, "I guess that's
just the way they are".
It's called 'Metal Fumes Poisoning'. It's similar to lead poisoning in that
it makes one feel like their brain is nothing but a rock in their head. A
better word to describe the feeling is 'Dumb'. Absolutely,
unable-to-think-beyond-the-simplest-thoughts, dumb. Luckily though, I think
I've recovered.
"Speechless" <noone@xxxxxxxxxxx> wrote in message
news:447c42ea.368629151@xxxxxxxxxxxxxxxxxxx
On Tue, 30 May 2006 03:30:53 GMT, "David Todtman"
<dtodtmanREMOVETHIS@xxxxxxx> wrote:
My method: Weld outdoors only (unless you have a high-end air evac.
system
at your welding area). Position yourself upwind from the weldment. To
weld: take and hold breath, weld, stop and step back and breathe. Let
white smoke--that's the bad fumes--clear the area and go at it again.
Ciao,
David Todtman
Right! In our shop we have a $300,000 air scrubber that meets OSHA
standards but, for welding galvanized stuff that generates seriously
dangerous fumes, we use a tiny $300 selfcontained workstation that we
roll outdoors and follow operating procedures described by the poster
above.
This is our outdoors workstation:
http://www.metalworking.com/DropBox/PlayBench.jpg
http://www.metalworking.com/DropBox/PlayBench.txt
Make sure you read the .txt file if you plan on building something
like it.
"Speechless" <noone@xxxxxxxxxxx> wrote in message
news:4479dc19.211212556@xxxxxxxxxxxxxxxxxxx
On , "Ted" <edrule@xxxxxxxxxxx> wrote:
NNTP-Posting-Date: Sun, 28 May 2006 08:36:44 MST
Date: Sun, 28 May 2006 10:36:55 -0500
Anyone know of a way to make the welds in galvanized fence tubing
rustproof?
I use this:
http://www.clearcoproducts.com/cold_galvanize_primers.html
I would think the zinc in the tubing would transfer to the welded joint.
No, the zinc transfers straight to your nostrils. If you plan on
having a long career in welding, DO NOT BREATHE THE FUMES.
Any
thoughts appreciated. TIA Ted
.
- References:
- Galvanized metal welding
- From: Ted
- Re: Galvanized metal welding
- From: Speechless
- Re: Galvanized metal welding
- From: David Todtman
- Re: Galvanized metal welding
- From: Speechless
- Galvanized metal welding
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