The energy efficiency model of scrap aluminum regeneration during alloying process was established.The effects of processing parameters in condition of adjusting different kinds of alloying elements on alloying energy efficiency were analyzed.Combined with the gas consumption model

the minimum amount of gas volume supplied was presented in different alloying process.The results show that when the same content of an element is adjusted

the higher alloying energy efficiency is realized in feeding than that in dilution

and the higher the content of target alloying element in master alloys used in feeding is

the higher alloying energy efficiency is.The highest alloying energy efficiency can be observed with adding Si than any other elements.By optimizing way of gas supplied

when alloying process is completed

melt temperature just reaches the required temperature

where the highest alloying energy efficiency can be realized.