Jump to content
I Forge Iron

Welding Flux


Recommended Posts

I have access to literally tons of ground up Granite as fine as talcum powder. It would seem a shame to find that it's no good as a welding flux. I know the obvious way to test if its OK but I wonder what others reckon.

Link to comment
Share on other sites

Strine:

Answer: I don't know. :lol:

HOWEVER... you will know fairly quickly by trying it. I'm not a rock scientist (just COULDN'T resist), but as I recall, granite is a family of material. A quick research on the web would tell you what's typically in it. For instance, here is one link with a breakdown of likely elements:

http://www.championtrees.org/topsoil/australia.htm

From the table in this article, it looks like SiO2 is the most prominent ingredient, which you would expect from a quartz family of rocks.

Sooo.... if the other elements don't hinder welding (and I don't see why they would), it seems to me that you would be using the equivalent of sand (with other gunk, though) ... which is a valid flux.

Put some on a piece of iron. Put it in the forge and bring it carefully to welding heat. With sunglasses or (better) #4 or #5 welding glasses, watch the surface. If the granite dust melts and coats the iron slightly before you reach midrange welding heat, you probably have a flux worth trying.

Link to comment
Share on other sites

Please be careful handling that powdered stone. If you breathe the dust you are making youself a candidate for Silicosis which is a progressive and fatal disease. When you get it from coal dust it is called Black Lung Disease, from stone dust containing Silicone, it is Silicosis, results are the same. Wear a Respirator when using or working around this stuff. PLEASE!

Woody

Link to comment
Share on other sites

Ed, I'll give it a go tomorrow and let you know. Don't lose any sleep over it :)

And yes Woody I have all the good oil on silicosis and rock dust. This dust is everywhere in the quarries I work in and they're forever telling us of the dangers.

Link to comment
Share on other sites

Scuse me Jim while I recompose myself :D ...(insert think music here).... Nup I just can't think of a comeback. And Ed, rocks is rocks to me. Alls I know is that when you drill a hole into them they make a lot of dust, and noise which makes the place downright uncomfortable. I just tell 'em where to put the hole.

Link to comment
Share on other sites

Ground up granite dust does not possess magical properties in relation to fire welding. In fact the trial test today suggested you'ld do just as well without flux at all. Looks like I'll have to find another use for the stuff!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...