copper pipe welding tools

If a copper pipe Exposed to an open flame to be sure?

For school, I need a DNA replica make creative. As a rather practical, I want a ring from a flattened section turn a copper tube (with Sections cut, compliments of a Dremel tool) is heated, and to achieve the look twisted, with the ends together soudered. I was on the achievement of planning, Twist said of [short] exposure led to an open flame, and turn it with gloved hands. Would this constitute a danger, or would be for me safe to breathe? I was also on the use of flame or a soudering launch of the "sweat" from the ends of planning. Any ideas? Thank Thanks!

should not be a problem is that, like plumbing pipes connect copper, by heating with a torch. You can also get heat, a simple Application that bending tool will bend without the hose. Copper is very soft ..

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