Silicon carbide (SiC) inotaridza kupfeka kwakatanhamara uye kusagadzikana kwekuora nekuda kwekusiyana kwayo kwemuviri nemakemikari zvimiro.
Panyaya yekuramba kupfeka, iyo Mohs kuoma kwesilicon carbide inogona kusvika 9.5, yechipiri chete kune diamond uye boron nitride. Kuramba kwayo kupfeka kwakaenzana ne266 nguva yesimbi yemanganese uye 1741 nguva yeyakakwira chromium cast iron.
Panyaya yekurambira kwecorrosion, silicon carbide ine yakanyanya kugadzikana kemikari uye inoratidza kuramba yakasimba kune yakasimba asidhi, alkali, uye munyu mhinduro. Zvichakadaro, silicon carbide zvakare ine yakakwira corrosion kuramba kune simbi dzakanyungudutswa sealuminium uye zinc, uye inowanzoshandiswa mumacrucibles uye molds muindasitiri yesimbi.
Parizvino, silicon carbide yakasanganiswa neyakaomesesa dhizaini uye inertness yemakemikari yakashandiswa zvakanyanya mumaindasitiri akadai semigodhi, simbi, uye kemikari, ikava sarudzo yakanaka yezvinhu pasi pemamiriro ekushanda akanyanya.
| zvinhu | kupfeka kuramba | corrosion resistance | kushanda kwekushisa kwepamusoro | Economic (yenguva refu) |
| Silicon carbide | Kunyanya kukwirira | Kunyanya kusimba | Yakanakisa (((1600℃) | High |
| Alumina ceramics | High | Strong | Avhareji (((1200℃) | Pakati |
| Metal alloy | Pakati | Simba (inoda coating) | Husina simba (inotarirwa kuoxidation) | Weak |
Silicon carbide kupfeka-resistant blockchinhu chakakosha muchikamu chesilicon carbide zvigadzirwa.Kupfeka-resistant uye corrosion-resistant properties yesilicon carbide inoita kuti ishandiswe zvakanyanya mumichina yekukuya yakadai semigodhi yekupwanya uye bhora rezvigayo, kuderedza kakawanda kushandiswa kwemidziyo kunokonzerwa nekupfeka uye nokudaro kuderedza mari yekugadzirisa michina.
Izvi zvinotevera kuenzanisa pakati pesilicon carbide kupfeka-resistant blocks uye mamwe echinyakare zvinhu zvekupfeka-resistant blocks:
| Kuoma uye Wear Resistance | Silicon carbide kupfeka-resistant block | Traditional zvinhu |
| Kuoma uye Wear Resistance | Mohs kuoma 9.5, yakanyanya kusimba kupfeka kuramba (hupenyu hwakawedzera ne5-10 nguva) | Yakakwira chromium cast iron ine yakaderera kuomarara (HRC 60 ~ 65), uye alumina ceramics anowanzo kuputika kuputika. |
| Corrosion resistance | Inopikisa kune yakasimba acids uye alkalis | Simbi dzinowanzoita ngura, nepo alumina ine avhareji yeasidhi kuramba |
| Kugadzikana kwekushisa kwepamusoro | Tembiricha kuramba 1600 ℃, isina oxidizing pakupisa kwakanyanya | Simbi inokonzeresa deformation pakupisa kwepamusoro, nepo alumina ine tembiricha inodzivirira ye1200 ℃ chete. |
| Thermal conductivity | 120 W/m · K, kukurumidza kupisa kupera, kupisa kutyisa kuramba | Simbi ine yakanaka yekupisa conductivity asi inotarirwa kuoxidation, nepo ma ceramics akajairwa asina kunaka kwekupisa. |
| Economic | Hupenyu hurefu uye mutengo wakaderera | Simbi dzinoda kudzokororwa kazhinji, ceramics haina kusimba, uye mutengo wenguva refu wakakwira |
Nguva yekutumira: Mar-18-2025