| 摘要 |
A method of recycling metallic coated scrap pieces wherein the coating layer liquidus temperature is lower than the core layer solidus temperature, such as brazing sheet scrap pieces, or metallic coated scrap pieces wherein the upper part of the melting range of the coating layer overlaps the lower part of the melting range of the core layer, by at least partially removing the coating layer from the core layer of the scrap pieces making use of a heat resistant metallurgical vessel having an opening for introducing the scrap pieces into the vessel and an exit for discharging essentially molten alloy. The vessel being rotatable around an axis of rotation. The method including the sequential steps of: filling the vessel with a load of scrap pieces; supplying an amount of energy to the vessel so essentially all the scrap pieces reach a temperature above the solidus temperature of the coating layer; rotating the vessel during and/or after the supplying of the amount of energy for forming essentially molten alloy; removing the essentially molten alloy, having the composition of the scrap pieces' coating layer mixed with small amounts of the core layer, through the vessel exit; and removing the remainder of the load from the vessel. |
