Wednesday, August 23, 2006

Important Safety Tip
This is the sort of thing that pops up in after dinner conversations with metallurgists. I'm sure this is old news to all of you, but it's apparently important to clean up your grinding wheel (and the surrounding area) between grinding different types of metal, particularly between aluminum and anything ferrous. See, if you mix aluminum dust with iron oxide (which is what iron or steel dust turns into in the presence of even a little bit of moisture), you get Thermite, which can then ignite with a spark from the grinding wheel, which can then cause a giant fireball of nastiness.

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