Welding with Mg
Conundrum, Tue Jun 24 2014, 03:51AMHi all.
I just had an interesting experience with Mg metal when testing to see how easily it would ignite,
Formed a plasma arc using 6 PP3s in series, that worked
Would not a simple method like a CCFL driver, fire cement covered Mg strip backed with iron oxide (modified thermite) and the weld underneath then get hot enough for the underlying metal to indeed fuse?
The formed Mg2O3 would act as a flux, if not boric acid would be the obvious choice.
Just a crazy idea, and as long as the weld was sealed and filled with flux prior to ignition it should work.
-A
Re: Welding with Mg
Bored Chemist, Tue Jun 24 2014, 07:44PM
Never heat anything in a sealed space without thinking really hard about it first.
For example, Boric acid is volatile and would exert rather a lot of pressure under those conditions.
Bored Chemist, Tue Jun 24 2014, 07:44PM
Never heat anything in a sealed space without thinking really hard about it first.
For example, Boric acid is volatile and would exert rather a lot of pressure under those conditions.
Re: Welding with Mg
Conundrum, Fri Jun 27 2014, 07:44AM
Thanks for that!
I'll have to try something else to get B metal..
Conundrum, Fri Jun 27 2014, 07:44AM
Thanks for that!
I'll have to try something else to get B metal..
Re: Welding with Mg
Ash Small, Thu Aug 21 2014, 10:37AM
Ideally, in most situations, you want to heat the workpiece prior to welding, if light alloy. This results in less distortion, etc.
Ash Small, Thu Aug 21 2014, 10:37AM
Ideally, in most situations, you want to heat the workpiece prior to welding, if light alloy. This results in less distortion, etc.
Re: Welding with Mg
Enceladus, Thu Feb 09 2017, 06:47AM
What the heck is a PP3?
Enceladus, Thu Feb 09 2017, 06:47AM
What the heck is a PP3?
Re: Welding with Mg
hen918, Thu Feb 09 2017, 12:44PM
hen918, Thu Feb 09 2017, 12:44PM
Enceladus wrote ...
What the heck is a PP3?
It's a standard code for the small 9 V battery with the snap on contacts. What the heck is a PP3?
Re: Welding with Mg
Hazmatt_(The Underdog), Fri Feb 10 2017, 03:47AM
Magnesium is only 2+, MgO is the oxide.
Boric acid would be really corrosive to Magnesium, it would oxidize quickly and the Boric acid would reduce to Boron Oxide.
Magnesium would have to be welded in Argon/Helium, or probably Ammonia (heavy Nitrogen) where the hot gas acts as the flux and ignition suppression at the same time.
Hazmatt_(The Underdog), Fri Feb 10 2017, 03:47AM
Magnesium is only 2+, MgO is the oxide.
Boric acid would be really corrosive to Magnesium, it would oxidize quickly and the Boric acid would reduce to Boron Oxide.
Magnesium would have to be welded in Argon/Helium, or probably Ammonia (heavy Nitrogen) where the hot gas acts as the flux and ignition suppression at the same time.
Re: Welding with Mg
Conundrum, Mon Feb 13 2017, 03:47AM
Interesting ideas, thanks.
I did wonder about using Mg as a shortcut to get B metal via a 2 step reaction with carbon to reduce BO to B as an intermediate for MgB2.
Interesting experiment, SiC + MgCaCO3 + C + MW = CaC2 and some other assorted oxides such as SiO2 and MgO
Conundrum, Mon Feb 13 2017, 03:47AM
Interesting ideas, thanks.
I did wonder about using Mg as a shortcut to get B metal via a 2 step reaction with carbon to reduce BO to B as an intermediate for MgB2.
Interesting experiment, SiC + MgCaCO3 + C + MW = CaC2 and some other assorted oxides such as SiO2 and MgO
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