Cov hlau cam khwb cia, ua cov khoom siv hlau feem ntau, muaj cov txiaj ntsig zoo li nram no:
1. Muaj zog thiab ruaj khov: Hlau cam khwb cia muaj zog thiab ruaj khov, thiab tuaj yeem tiv taus cov khoom hnyav thiab siab.
2. Kev tiv thaiv zoo hnav: Hlau cam khwb cia muaj kev tiv thaiv zoo hnav: Hlau cam khwb cia muaj kev tiv thaiv zoo hnav thiab tsim nyog rau kev ua haujlwm hauv qab kev sib txhuam thiab hnav.
3. Kev tiv thaiv xeb zoo: hlau cam khwb cia muaj kev tiv thaiv xeb zoo thiab tuaj yeem ua haujlwm ruaj khov hauv qhov chaw ib puag ncig hnyav rau lub sijhawm ntev.
4. Cov kua dej zoo: Cov hlau cam khwb cia muaj qhov melting point qis thiab cov kua dej siab, uas yooj yim rau kev ua cov txheej txheem casting thiab tuaj yeem ua cov khoom zoo nkauj.
5. Tus nqi qis: Hlau cam khwb cia yog cov khoom siv dav dav, nplua nuj nyob rau hauv cov peev txheej, tus nqi qis dua, tsim rau kev tsim khoom loj.
Piv nrog rau lwm cov hlau, cov hlau cam khwb muaj cov txiaj ntsig zoo li nram no:
1. Tus nqi qis dua: Piv nrog rau lwm cov khoom siv hlau, hlau cam khwb cia muaj tus nqi raw khoom qis dua thiab tsim nyog rau kev siv rau hauv kev tsim khoom loj.
2. Kev tiv thaiv zoo: Hlau cam khwb cia muaj kev tiv thaiv zoo, tsim nyog rau cov xwm txheej ua haujlwm uas yuav tsum tau tiv taus kev sib txhuam thiab kev hnav.
3. Muaj zog tiv taus compressive: Cov hlau cam khwb cia muaj lub zog siab thiab rigidity, thiab tuaj yeem tiv taus cov loads loj dua thiab siab.
4. Kev yooj ywm ntawm cov txheej txheem tsim khoom: hlau cam khwb cia muaj kev ua haujlwm zoo thiab kev ua haujlwm casting, thiab tuaj yeem ua cov khoom zoo nkauj.
Txawm li cas los xij, hlau cam khwb kuj muaj qee qhov kev txwv, xws li brittleness, yooj yim los tsim cov qhov tsis zoo, yog li hauv kev siv engineering tshwj xeeb, nws yuav tsim nyog xav txog kev hloov lwm cov ntaub ntawv hlau.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-09-2023