If you can't view it, it's a video of a CNC plasma table, and there's a large amount of bubbling going on in the water.
Here's the OP's description:
My thoughts were that with the large amount of oxides deposited from the aluminum, the lack of aeration caused both the steel particles and aluminum oxides to settle out. Essentially, I think he's got an exothermic reaction bordering on a mild thermite production. And perhaps the Borax is adding further oxidizing action? Either way, this looks to me like hydrolysis, and those are hydrogen bubbles escaping.Had anyone ever had this happen before? I mostly cut aluminum. Since I cleaned the table I have cut maybe 30 sheet of aluminum and 5 sheet of steel. I haven’t cut on the table in 4 days. I use Borax to keep the table from rusting.
But I'm no chemist... I don't even play one on TV. So what say you, Guild Collective?