Copper pipe annealing

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By dearme

Twenty-odd hard-drawn half-inch copper pipes, 18 ft long, need to be annealed using an LPG blowtorch. It would be nice to do it in small batches. Does anyone have experience of making a suitable oven or furnace using firebrick through which the pipes are pulled by hand ? First attempts have been made difficult by the tendency of the blowlamp to go out when it is close to the tunnel to use as much of the hot gases as possible.

From: http://www.doityourself.com/forum/welding-metalworking/493297-copper-pipe-annealing.html

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