The market share of building aluminum formwork in China has exceeded ten million tons,and the annual recyclable amount of waste building aluminum formwork has reached one million tons.In this paper,the recycling and regenerating process and technologies of waste building aluminum formwork were introduced,including the pretreatment and melting of waste building aluminum formwork and extrusion forming of new building aluminum formwork.The key technologies such as pre-treatment,melt purification and refinement,design of extrusion dies,and control of extrusion processes can realized grade preservation and regeneration of waste building aluminum formwork,which is of great significance for reducing production costs,saving resources,reducing emissions,and protecting the environment.
关键词
建筑铝模板/回收再生/净化/细化/挤压
Key words
building aluminum formwork/recycling and regenerating/purification/refinement/extrusion