I-carbon carbide exineneyo yoxinzelelo lomoya yi-carbide engeyiyo i-metallic ene-silicon kunye ne-carbon covalent bond, kwaye ubunzima bayo bulandela i-diamond kunye ne-boron carbide. Ifomyula yekhemikhali yi-SiC. Iikristale ezingenambala, ezibonakala ziluhlaza okwesibhakabhaka namnyama xa zifakwe i-oxidized okanye ziqulethe ukungcola. Ukuguqulwa kwe-silicon carbide enesakhiwo sedayimani kudla ngokubizwa ngokuba yi-emery. Ubunzima be-emery busondele kwi-diamond, uzinzo oluhle lobushushu, isisombululo samanzi esizinzileyo kwi-hydroxy acid kunye ne-sulfuric acid egxininisiweyo, kwaye azizinzile kwi-acid exutyiweyo okanye i-phosphoric acid ye-hydrogen acid egxilileyo kunye ne-nitric acid. Ii-alkalis ezinyibilikayo emoyeni ongenanto ziyahluka. Yahlulwe kwi-silicon carbide yokwenziwa kunye ne-silicon carbide yendalo. I-silicon carbide yendalo, eyaziwa ngokuba yi-carbonite, ifumaneka kakhulu kwi-kimberlite kunye ne-volcanic amphibolite, kodwa ubungakanani bayo buncinci kwaye ayinaxabiso lokumba.
I-silicon carbide etyhidiweyo yoxinzelelo lomoya lwemizi-mveliso ngumxube we--SiC kunye ne--SiC kwaye iza ngemibala emibini: emnyama neluhlaza. I-silicon carbide ecocekileyo ayinambala, iqulethe ukungcola okumnyama, okuluhlaza, okuluhlaza okwesibhakabhaka, okutyheli. Imida yengqolowa ye-hexagonal kunye neye-cubic, ikristale yiplate, ikholamu edibeneyo. I-Glass luster, ubuninzi be-3.17 ~ 3.47G/CM3, ubunzima be-Morse 9.2, i-microscope nayo ikwi-30380 ~ 33320MPa melting point: i-atmospheric 2050 yaqala ukwahlukana, i-recovery atmosphere 2600 yaqala ukwahlukana. I-elastic coefficient yi-466,480 MPa. Amandla okutsalwa yi-171.5MPa. Amandla okucinezela yi-1029MPa. I-linear expansion coefficient yi-(25 ~ 1000)5.010 ~ 6/. I-thermal conductivity (20) yi-59w/(mk). Uzinzo lwekhemikhali, olubila kwi-HCl, i-H2SO4, i-HF ayizukubola.
Ngokweendlela ezahlukeneyo zokusetyenziswa, i-carbon carbide efakwe uxinzelelo lomoya yahlulwe yaba yi-abrasive, i-refractory data, i-deoxidizer, i-silicon carbide yombane njalo njalo. Umxholo we-SiC we-silicon carbide e-abrasive akufuneki ube ngaphantsi kwe-98%. I-silicon carbide e-refractory yahlulwe yaba: (1) i-silicon carbide emnyama e-advanced refractory data, umxholo wayo we-SiC ufana nqwa ne-silicon carbide yokusila. (2) I-silicon carbide emnyama e-refractory data yesibini, umxholo we-SiC ungaphezulu kwe-90%. (3) Umxholo we-silicon carbide emnyama kunye ne-SiC kwiindawo ezi-refractory ezikumgangatho ophantsi awungaphantsi kwe-83%. Umxholo we-silicon carbide kunye ne-SiC esetyenziswa kwi-deoxidizer ngokubanzi kufuneka ube ngaphezulu kwe-90%. Nangona kunjalo, i-carbon industrial graphitization furnace insulation, umxholo we-silicon carbide ongaphezulu kwe-45% yonyango nayo ingasetyenziswa njenge-deoxidizer yokwenza intsimbi. I-silicon carbide ye-deoxidizing agent ineentlobo ezimbini zemilo ye-powder kunye ne-molding block. I-powder deoxidizer black silicon carbide ngokubanzi inobukhulu beesuntswana ezi-4 ~ 0.5 mm kunye ne-0.5 ~ 0.1 mm.
I-silicon carbide yombane ineentlobo ezimbini eziphambili
(1) I-silicon carbide eluhlaza esetyenziselwa izinto zokufudumeza ngombane iyafana kakhulu ne-silicon carbide eluhlaza esetyenziselwa ukugaya.
(2) I-silicon carbide ye-arrester ineemfuno ezikhethekileyo zomsebenzi wombane, eyahlukileyo kwi-silicon carbide emnyama yokusila idatha echaseneyo.
Ukusetyenziswa kwe-carbon dioxide ye-silicon exineneyo enoxinzelelo lomoya
Iimveliso ze-silicon carbide ezifakwe uxinzelelo lomoya zinemisebenzi ekhethekileyo efana nokumelana nobushushu obuphezulu, ukumelana nokuguguleka, ukumelana nobushushu, ukumelana nomlilo, ukumelana nemitha, ukuqhuba kakuhle kombane kunye nobushushu, njl.njl., kwaye zisetyenziswe kakhulu kumasebe ahlukeneyo oqoqosho lwelizwe. E-China, i-silicon carbide eluhlaza isetyenziswa kakhulu njenge-abrasive. I-black silicon carbide isetyenziselwa ukwenza amatye okuguguleka, adla ngokusetyenziselwa ukusika nokuguguleka izinto ezinamandla aphantsi okuxhuzula, njengeglasi, iiseramikhi, amatye, ii-refractories, kunye nokuguguleka iindawo zesinyithi eziphosiweyo kunye nezinto zesinyithi ezingezizo i-ferrous. Ukuguguleka okwenziwe nge-green silicon carbide kusetyenziswa kakhulu ekuguguleni i-cemented carbide, i-titanium alloy, iglasi ye-optical, kunye nokuguguleka kwe-cylinder liner kunye nezixhobo zesinyithi ezikhawulezayo. Ii-abrasives ze-cubic silicon carbide zisetyenziselwa kuphela ukuguguleka ngokuchanekileyo kwee-miniature bearings. Ukuguguleka kwee-turbine impellers kunokuphuculwa kakhulu ngokusebenzisa i-SIC powder kuzo ngokufakelwa i-electroplating. Ukusebenzisa uxinzelelo loomatshini ukutyhala i-cubic SiC200 mill kunye ne-W28 micro-powder eludongeni lwesilinda lwenjini yokutsha yangaphakathi, ubomi besilinda bunokuphindwa kabini.
Ixesha lokuthumela: Juni-16-2023