nkhani

Silicon carbide (SiC) imapangidwa ndi kusungunula kutentha kwambiri mu ng'anjo yolimba pogwiritsa ntchito zinthu zopangira monga mchenga wa quartz, petroleum coke (kapena coke ya malasha), matabwa (mchere umafunika kuti apange silicon carbide yobiriwira). Silicon carbide imapezekanso m'chilengedwe, mchere wosowa, moissanite. Silicon carbide imatchedwanso moissanite. Pakati pa zinthu zosagwiritsa ntchito oxide monga C, N, ndi B, silicon carbide ndiyo yomwe imagwiritsidwa ntchito kwambiri komanso yotsika mtengo, ndipo imatha kutchedwa golide chitsulo kapena grit yosagwirizana. Pakadali pano, kupanga silicon carbide m'mafakitale ku China kumagawidwa m'ma black silicon carbide ndi green silicon carbide, zonse ziwiri ndi makristalo a hexagonal okhala ndi mphamvu yokoka ya 3.20-3.25 ndi microhardness ya 2840-3320kg/mm2.

Silicon carbide ili ndi magawo anayi akuluakulu ogwiritsira ntchito, omwe ndi: zoumba zogwira ntchito, zotsukira zapamwamba, zotsukira ndi zopangira zitsulo. Zipangizo za coarse silicon carbide zitha kuperekedwa kale mochuluka ndipo sizingaganizidwe ngati chinthu chaukadaulo wapamwamba. Kugwiritsa ntchito ufa wa nano-scale silicon carbide wokhala ndi zinthu zambiri zaukadaulo sikungatheke kupanga zinthu zambiri mwachangu.

⑴Monga chopukutira, chingagwiritsidwe ntchito popanga zida zopukutira, monga mawilo opukutira, miyala yamafuta, mitu yopukutira, matailosi amchenga, ndi zina zotero.

⑵Monga chotsukira zitsulo komanso choteteza kutentha kwambiri.

⑶ Makristalo amodzi oyeretsedwa kwambiri angagwiritsidwe ntchito popanga ma semiconductors ndi ulusi wa silicon carbide.

 

金刚砂_01

 

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Nthawi yotumizira: Ogasiti-03-2021