i have some wheels and some hooks (to tie a chain around to secure an argon bottle) that i need to weld on my welding cart, both of them have some galvanized coating and i will use a flap disk to get most of it off, but are there any more precautions i need to take in order to tig weld it? i know its complete crap to breathe it in,but ill be welding it outside
(not 100% sure the metal that they are made of, ill do a burst tack and file to see if its cast iron, if it is, should i just tig braze it? if the test feels like a mild steel, then ill just say screw it and weld it.)
regards
noah
Tig welding tips, questions, equipment, applications, instructions, techniques, tig welding machines, troubleshooting tig welding process
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exnailpounder
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Most of the time grinding it off works but if it's gotten impregnated you're in for some fun. You could always bolt it.
Ifyoucantellmewhatthissaysiwillbuyyouabeer.
You'll become a expert tungsten sharpener if it's impregnated....ugh been there. Flap disc it good at least 1/4" past where you'll be welding.
I weld stainless, stainless and more stainless...Food Industry, sanitary process piping, vessels, whatever is needed, I like to make stuff.
ASME IX, AWS 17.1, D1.1
Instagram #RNHFAB
ASME IX, AWS 17.1, D1.1
Instagram #RNHFAB
I've been using emt conduit to practice cluster joints and I've been happy just using muriatic (hydrochloric) acid to strip off galvanization. It won't eat iron so just toss it in and when it stops bubbling it is clean. If you then do a few minutes in phosphoric acid, it will give it a thin rust resistant layer that is fine to weld through. It'll still need something as a real rust preventative like paint, powder or black oxide. Handy for stripping mill scale too.
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Red-hot iron, white-hot iron, cold-black iron; an iron taste, an iron smell, and a babel of iron sounds.
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If you use acid be careful not to breathe the fumes. It might not kill you, but it sure isn't fun to breath. Acid does work well. I also sand blast some stuff.
Freddie
I often weld small bits of metal at home to practice when I can. Would muriatic acid work for small parts, I.e. nuts, bolts, nails, etc. Especially nuts.
I have tons of hardware at home but I can't grind it good enough to be comfortable welding it in the basement. Most of the items would fit in a pickle jar so it's nothing big.
What would be a good material to make a carriage from, sort of like a fryer basket to lower and raise the pieces in?
Thanks for the help.
I have tons of hardware at home but I can't grind it good enough to be comfortable welding it in the basement. Most of the items would fit in a pickle jar so it's nothing big.
What would be a good material to make a carriage from, sort of like a fryer basket to lower and raise the pieces in?
Thanks for the help.
Or you might be able to burn it off. I think it's something like 900 deg f to get rid of zinc. 900deg f is about equal to red hot i.e. Visible light emitted from the part. Granted that may make your small parts softer than you want but at least the galv will be gone.
I have more questions than answers
Josh
Josh
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When using muriatic acid, use it outside.
The fumes will put a brown coating on all bare steel, machine tools, etc.
The fumes will put a brown coating on all bare steel, machine tools, etc.
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Stainless steel kitchen sieve. Small one with a handle. Put the acid in an old 8 oz. plastic margarine tub.JHenze646 wrote:...What would be a good material to make a carriage from, sort of like a fryer basket to lower and raise the pieces in?
Thanks for the help.
Steve S
Thank you. This was along the lines that I was thinking.Otto Nobedder wrote:Stainless steel kitchen sieve. Small one with a handle. Put the acid in an old 8 oz. plastic margarine tub.JHenze646 wrote:...What would be a good material to make a carriage from, sort of like a fryer basket to lower and raise the pieces in?
Thanks for the help.
Steve S
I've seen some people do a home brew copper plating on the screen in the diffuser to prevent the steel sticking.Turbo wrote:Be sure to use your crappiest collet setup. I've got BBs permanently stuck to my gas lens defuser from the last time I welded galvanized.
I can't remember if it was here or another forum, but it wasn't more than six months back, if I remember correctly.
-Josh
Greasy fingered tinkerer.
Greasy fingered tinkerer.
I use the acid all the time to remove the gold plating on grade 8 hardware if I have to weld it.
The gallon I have has lasted me several years and is still more than 1/2 full.
I used a Pyrex container as regular glass can break if you put in too much material since it generates heat. Dont ask how I know this.
Something to be aware of if using plastic containers.
And the fumes...
Yeah be sure to do it outside and upwind of the container if able. Or wear a respirator, the fumes cant always be seen but you KNOW when you breath them.
The gallon I have has lasted me several years and is still more than 1/2 full.
I used a Pyrex container as regular glass can break if you put in too much material since it generates heat. Dont ask how I know this.
Something to be aware of if using plastic containers.
And the fumes...
Yeah be sure to do it outside and upwind of the container if able. Or wear a respirator, the fumes cant always be seen but you KNOW when you breath them.
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