Nekuwedzera kwehuhu hunodiwa hwesimbi yakakandwa, kushandiswa kwealuminium ye deoxidation yeimwe yepamusoro-giredhi castings haigone kusangana nezvinodiwa. Nokudaro, kushandiswa kwealuminium uye calcium composite deoxidation yakagamuchira zvakanyanya.
Mukupedzisira deoxidation, kusanganiswa kwealuminium uye calcium haigoni kungowedzera kuderedza okisijeni mukati mesimbi, asiwo kunatsiridza kusvibiswa kusina simbi.
Nekuda kwekuti density yecalcium ingori 1/5 yesimbi, panobikira i1492â, iyo yakadzikira pane tembiricha yesimbi yakanyungudutswa, uye basa rayo rakasimba kwazvo, saka zvinonetsa kuidzora nemazvo kana ikashandiswa. mukugadzira simbi. Kurambidzwa uku kwakaganhurira kufarirwa uye kushandiswa kwecalcium musimbi yakakandwa.
Mumakore makumi maviri apfuura, kunzwisiswa kwebasa re calcium musimbi kwakadzika, uye maitiro ekushandisa akakura zvishoma nezvishoma. Iye zvino, yakashandiswa zvakanyanya.
