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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Melting brass and bronze for casting
I "know" that holding brass or bronze at high temp burns off the low
melting zinc, tin, and lead and it is not recommended that brass or bronze scrap be melted into ingots per one site I checked out. None the less 1. Is it better (more consistant results) to bring the first batch of metal up from cold or to heat the crucible and furnace to near the final melt temp and add the metal at that time? 2. If it is desired to add tin to bronze or zinc to brass, how and when should this be done? Pellets or other bits of low melt metal to molten alloy? Cold mixing bits of both ingredients and heat mix? Lower temp metal melted and higher temp added? My basic stock at this point is surplus keys and what I am making is goblet stems to blow glass into and molds and tools. http://users.ticnet.com/mikefirth/castgobl.htm#CASTGOB -- Mike Firth Hot Glass Bits Furnace Working Website http://users.ticnet.com/mikefirth/hotbit46.htm Latest notes |
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