Binary alloy e entsoeng ka silicon le calcium ke ea sehlopha sa ferroalloys.Likarolo tsa eona tse ka sehloohong ke silicon le calcium, hape e na le litšila tse kang tšepe, aluminium, carbon, sulfur le phosphorus ka bongata bo sa tšoaneng.Ka indasteri ea tšepe le tšepe, e sebelisoa e le motsoako oa calcium, deoxidizer, desulfurizer le denaturant bakeng sa li-inclusions tse se nang tšepe.E sebelisoa e le ente le denaturant indastering ea tšepe ea tšepe.
Tšebeliso:
E le motsoako oa deoxidizer (deoxidization, desulphurization le degassing) E sebelisoa ho etsa tšepe, ho qhibilihisa alloy.E le inoculant, hape e sebelisoa ho hlahisa tlhahiso.
Boemo ba 'mele:
Karolo ea ca-si e bohlooho bo bobebe e hlahileng ka sebopeho se hlakileng sa lijo-thollo.Lump, lijo-thollo le phofo.
Sephutheloana:
k'hamphani ea rona e ka fana ka mefuta e fapaneng ea lijo-thollo tse boletsoeng ho latela litlhoko tsa basebelisi, tse kentsoeng ka masela a polasetiki le mokotla oa lithane.
Chemical element:
| Kereiti | Khemikhale % | |||||
| Ca | Si | C | AI | P | S | |
| ≥ | ≤ | |||||
| Ca31Si60 | 31 | 58-65 | 0.8 | 2.4 | 0.04 | 0.06 |
| Ca28Si60 | 28 | 55-58 | 0.8 | 2.4 | 0.04 | 0.06 |
| Ca24Si60 | 24 | 50-55 | 0.8 | 2.4 | 0.04 | 0.04 |
Litšila tse ling li hlalosoa ho latela merero e fapaneng.Ho phaella moo, motheong oa li-alloys tsa silicon-calcium, likarolo tse ling li eketsoa ho etsa li-alloys tse ngata tsa ternary kapa tse ngata.Tse kang Si-Ca-Al;Si-Ca-Mn;Si-Ca-Ba, joalo-joalo, e sebelisoa e le deoxidizer, desulfurizer, denitrification agent le alloying agent ka tšepe le tšepe ea tšepe.
Kaha khalsiamo e na le kamano e matla le oksijene, sebabole, hydrogen, nitrogen le carbon ka tšepe e qhibilihisitsoeng, li-alloys tsa silicon-calcium li sebelisoa haholo-holo bakeng sa deoxidation, degassing le fixation ea sebabole ka tšepe e qhibilihisitsoeng.Calcium silicon e hlahisa phello e matla ea exothermic ha e kenngoa ho tšepe e qhibilihisitsoeng.Calcium e fetoha mouoane oa k'halsiamo ka har'a tšepe e qhibilihisitsoeng, e nang le phello e sisinyehang holim'a tšepe e qhibilihisitsoeng 'me e na le molemo ho phaphametseng ha lintho tse se nang tšepe.Ka mor'a hore motsoako oa silicon-calcium o hlajoe ke deoxidized, li-inclusions tse se nang tšepe tse nang le likaroloana tse kholoanyane le tse bonolo ho phaphamala li hlahisoa, 'me sebopeho le thepa ea li-inclusions tse se nang tšepe li boetse li fetoloa.Ka hona, alloy ea silicon-calcium e sebelisoa ho hlahisa tšepe e hloekileng, tšepe ea boleng bo holimo e nang le oksijene e fokolang le sebabole, le tšepe e khethehileng ea ts'ebetso e nang le oksijene e tlaase haholo le sebabole.Ho eketsoa ha silicon-calcium alloy ho ka felisa nodulation ea tšepe ka aluminium e le deoxidizer ea ho qetela ka nozzle ea ladle, le ho koala molomo oa tundish ea ho lahla ho tsoelang pele |ho etsa tšepe.Theknoloji ea ho hloekisa ka ntle ho sebōpi sa tšepe, phofo ea silicon-calcium kapa terata ea mantlha e sebelisetsoa deoxidation le desulfurization ho fokotsa litaba tsa oksijene le sebabole ka tšepe ho ea boemong bo tlaase haholo;e ka boela ea laola mofuta oa sulfide ka tšepe le ho ntlafatsa sekhahla sa tšebeliso ea khalsiamo.Tlhahisong ea tšepe e entsoeng ka tšepe, ho phaella ho deoxidation le tlhoekiso, alloy ea silicon-calcium e boetse e phetha karolo ea inoculating, e thusang ho theha graphite e ntle-grained kapa spherical;e etsa hore graphite ka tšepe e bohlooho e aroloe ka tsela e tšoanang, e fokotsa tšekamelo ea ho soeufala;'me e ka eketsa silicon le desulfurize, Ntlafatsa boleng ba tšepe ea tšepe.
Nako ea poso: Apr-11-2023
