The research and development methods of nonferrous aluminum intermediate alloys mainly include mixing method, ? electrolysis method, ? thermit reduction method, ? molten salt electrolysis method, ? vacuum thermit reduction method, ? and the reduction of oxides with aluminum in specific molten salt systems. ?

The mixing process, ? also known as the admixture process, ? involves the proportional addition of rare earth or mixed rare earth metals to high-temperature aluminum liquid, ? directly to produce intermediate alloys. ? This method has the advantages of simple equipment, ? convenient operation, ? fast melting speed, ? convenient addition of alloy elements and ? stable content of alloy components. ?, however, its disadvantages include rare earth metals are easy to be locally too concentrated in liquid aluminum, ? peritectic reaction is easy to occur, ? produces inclusions, ? rare earth burning loss, ? high cost. ?

There are two main methods of electrolysis: ? One is to produce a series of rare earth aluminum alloys by electrolysis of rare earth chloride on liquid aluminum cathode at low temperature; ? Second, when electrolyzing aluminum, ? adds rare earth oxides or rare earth salts to the industrial aluminum electrolytic cell, ? makes the added rare earth oxides or rare earth salts electrolysis together with alumina, ? is the rare earth and aluminum co-electric deposition to produce rare earth aluminum alloy. ?

Thermite reduction method uses the reducing ability of aluminum, ? aluminum can form a variety of intermetallic compounds with rare earth, ? the use of aluminum as reducing agent to prepare rare earth aluminum alloy. ? This method is carried out at a lower temperature ? avoids the problems caused by high temperature. ?

Molten salt electrolysis involves electrolysis of AlSc intermediate alloys in a specific molten salt system ?, but this method faces the problem of fluorine salt corrosion. ?

Vacuum thermite reduction and reduction of oxides with aluminum in specific molten salt systems, ? these methods are used to prepare aluminum intermediate alloys containing specific elements, ? by controlling reaction conditions and subsequent treatment to obtain the desired alloy properties. ?

The development and application of these methods, ? not only involves the innovation of alloy preparation technology, ? also includes the optimization of alloy properties and the consideration of environmental impact, ? to meet the needs of nonferrous aluminum intermediate alloys in different fields. ?