Umboniso wemveliso:
Ubhedu olucocekileyo lubhedu olunomlinganiselo ophezulu wobhedu, kuba inxalenye ephambili yobhedu kunye nesilivere, umxholo ngu-99.5 ~ 99.95%;izinto eziphambili zokungcola: i-phosphorus, i-bismuth, i-antimony, i-arsenic, isinyithi, i-nickel, ilothe, isinyithi, i-tin, isulfure, i-zinc, i-oksijini, njl.;esetyenziselwa ukwenza izixhobo zokuqhuba, i-alloy yobhedu ephuculweyo, i-alloy-based alloy.
Ubhedu lwe-aluminium lunokwahlulwa lube ngamacandelo amabini.Enye iphosa i-aluminium yobhedu ukususa ukungcola kunye nokwandisa i-fluidity, i-alloy ayidluli i-0.5%;enye yeyokubumba ialuminiyam yobhedu ukunyusa uxhathiso kwi-corrosion, edla ngokusetyenziswa njengombhobho wokujiya, uluhlu lokwakheka ngokubanzi yi-Al1 ~ 6%, iZn 24 ~ 42%, kunye ne-Cu 55 ~ 71%.