Ngokunyuka kweemfuno zomgangatho wensimbi ephosiweyo, ukusetyenziswa kwe-aluminium ye-deoxidation ye-castings ephezulu yezinga eliphezulu ayikwazi ukuhlangabezana neemfuno. Ngoko ke, ukusetyenziswa kwe-aluminium kunye ne-calcium composite deoxidation ifumene ingqwalasela enkulu.
Kwi-deoxidation yokugqibela, ukudibanisa kwe-aluminium kunye ne-calcium ayinakukwazi ukunciphisa ngakumbi umxholo we-oksijini kwintsimbi, kodwa nokuphucula ukungcola okungeyona insimbi.
Ngenxa yokuba ubuninzi be-calcium yi-1/5 kuphela yentsimbi, indawo yokubilisa yi-1492â, engaphantsi kobushushu bentsimbi etyhidiweyo, kwaye umsebenzi wayo unamandla kakhulu, ngoko kunzima ukuyilawula ngokuchanekileyo xa isetyenziswa. ekwenzeni intsimbi. Esi sithintelo sithintele ukuthandwa kunye nokusetyenziswa kwe-calcium kwintsimbi etyhidiweyo.
Kwiminyaka eyi-20 edlulileyo, ukuqonda kwendima ye-calcium kwintsimbi kuye kwagxininiswa, kwaye inkqubo yesicelo iye yakhula ngokuthe ngcembe. Ngoku, sele isetyenziswa ngokubanzi.
