Author Topic: Welding Chainsaw Parts  (Read 10459 times)

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Offline 660magnum

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Re: Welding Chainsaw Parts
« Reply #30 on: January 06, 2013, 12:03:28 am »
They were using Mapp gas on the thin stuff. On the automotive cylinder head they had something big like a rose bud for a torch. They have the Mapp gas at most hardware stores as well as the torches. Mapp gas is in a yellow tank.

If you've ever seen a magnesium fire you will be very scared of it. I used to melt a lot of scrap aluminum in a foundry and occasionally would get a piece of magnesium in the pot. There would be a big flash (like a photo flash bulb) and it was gone.

This stuff has been talked about a lot in the model airplane glow engine forums and seems to work great on the die castings.
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