Ukuqaliswa kwemveliso kunye nokusetyenziswa kwe-silicon carbide emnyama
I-silicon carbide emnyama(efinyeziweyo njenge-silicon carbide emnyama) yinto eyenziweyo engeyiyo eyentsimbi eyenziwe ngesanti yequartz kunye nepetroleum coke njengeyona mathiriyeli ikrwada kwaye inyibilikiswa kubushushu obuphezulu kwiziko lokumelana. Inombala omnyama-ongwevu okanye omnyama inkangeleko emnyama, ubunzima obuphezulu kakhulu, i-thermal conductivity elungileyo kunye nokuzinza kweekhemikhali. Yimathiriyeli ekrwada yemizi-mveliso egqwesileyo kwaye isetyenziswa kakhulu kwiziqholo, izixhobo ezinqandayo, isinyithi, iiseramikhi, i-elektroniki kunye namanye amacandelo.
Ⅰ. Iimpawu zokusebenza ze-silicon carbide emnyama
Ubunzima beMohsi-silicon carbide emnyamaIphezulu njenge-9.2, ikwindawo yesibini emva kwedayimani kunye netyhubhiki boron nitride, kwaye inokumelana okugqithisileyo nokunxitywa kunye nokumelana neempembelelo. Indawo yayo yokunyibilika imalunga ne-2700 ° C, kwaye inokugcina uzinzo lwesakhiwo kwindawo yobushushu obuphezulu kwaye akulula ukubola okanye ukonakala. Ukongeza, ine-conductivity elungileyo ye-thermal kunye ne-coefficient yokwandisa i-thermal ephantsi, kwaye isabonisa ukuzinza kokutshatyalaliswa kwe-thermal phantsi kobushushu obuphezulu kunye neemeko zoxinzelelo oluphezulu.
Ngokubhekiselele kwiipropati zeekhemikhali, i-silicon carbide emnyama inokumelana ne-corrosion efanelekileyo kwi-acids kunye ne-alkali, kwaye ifaneleke ngokukodwa ukusetyenziswa kwimizi-mveliso kwiindawo ezinzima. I-conductivity yayo ephezulu yenza ukuba ibe yinto engenye yezinto ezithile zokufudumeza kombane kunye nemimandla ye-semiconductor.
Ⅱ. Iifom zemveliso eziphambili kunye neenkcukacha
I-silicon carbide emnyama inokwenziwa kwiifom ezahlukeneyo ngokobungakanani bamasuntswana ahlukeneyo kunye nokusetyenziswa:
Izinto zokuvimba: iikristale ezinkulu emva kokunyibilikiswa, zihlala zisetyenziselwa ukuhlaziya okanye njengezongezo zetsimbi;
Isanti yeGranular (isanti ye-F / P): isetyenziselwa ukwenza amavili okusila, i-sandblasting abrasives, i-sandpaper, njl.;
I-Micro powder (i-W, i-D series): isetyenziselwa ukucolwa kwe-ultra-precision, i-polish, i-ceramic sintering, njl.;
I-Nano-level micro powder: isetyenziselwa i-ceramics ye-elektroniki ephezulu, i-thermal conductive composite materials, njl.
Ubungakanani bemilinganiselo ye-particle ukusuka kwi-F16 ukuya kwi-F1200, kwaye ubungakanani be-particle ye-powder micro inokufikelela kwinqanaba le-nanometer, elinokuthi lilungelelaniswe ngokweemfuno zobugcisa kwiinkalo ezahlukeneyo zesicelo.
Ⅲ. Iindawo ezisetyenziswayo eziphambili ze-silicon carbide emnyama
1. Iibrasives kunye nezixhobo zokugaya
Ii-Abrasives zezona ndawo zisetyenziswa kakhulu kwaye zisetyenziswa kakhulu kwi-silicon carbide emnyama. Ukuthatha inzuzo yobulukhuni bayo obuphezulu kunye neempawu zokuzilola, i-silicon carbide emnyama ingasetyenziselwa ukuvelisa iimveliso ezinqabileyo, ezifana namavili okusila, iidiski zokusika, i-sandpaper, iintloko zokusila, ii-pastes zokugaya, njl., ezilungele ukugaya kunye nokucubungula izinto ezifana nentsimbi, isinyithi, isinyithi, i-ceramics, iglasi kunye neemveliso zesamente.
Iingenelo zayo zisantya sokugaya ngokukhawuleza, akukho lula ukuvala, kunye nokusebenza kakuhle okuphezulu. Isetyenziswa ngokubanzi kwi-metal processing, ukuveliswa koomatshini, ukuhlobisa izakhiwo kunye namanye amashishini.
2. Izixhobo zokuphikisa
Ngenxa yozinzo oluphezulu lobushushu kunye nokumelana nokugqwala, i-silicon carbide emnyama isetyenziswa kakhulu kwintsimi yezixhobo ezichasene nobushushu obuphezulu. Ingenziwa kwizitena ze-silicon carbide, i-linings ye-furnace, i-crucibles, iityhubhu zokukhusela i-thermocouple, izixhobo ze-kiln, ii-nozzles, izitena ze-tuyere, njl.
Ukongezelela, izinto ze-silicon carbide zinezixhobo ezilungileyo ze-antioxidant kwi-high-temperature oxidizing atmospheres kwaye zifanelekile ukuba zisetyenziswe kwiindawo eziphambili zokushisa okutshisayo, ii-furnaces kunye nezinye izixhobo.
3. Ishishini leMetallological
Kwiinkqubo ze-metallurgical ezifana ne-steelmaking kunye nokuphosa, i-silicon carbide emnyama ingasetyenziswa njenge-deoxidizer, i-ejenti yokufudumala kunye ne-recarburizer. Ngenxa yomxholo wekhabhoni ephezulu kunye nokukhutshwa kobushushu okukhawulezayo, kunokuphucula ngokufanelekileyo ukunyibilikisa ukusebenza kakuhle kunye nokuphucula umgangatho wentsimbi etyhidiweyo. Ngexesha elifanayo, kunokunciphisa umxholo wokungcola kwinkqubo yokunyibilikisa kwaye idlale indima ekuhlambululeni intsimbi etyhidiweyo.
Ezinye iintsimbi zentsimbi zongeza umlinganiselo othile we-silicon carbide ukulungisa ukwakheka ekunyibilikeni kwentsimbi etyhidiweyo kunye ne-ductile iron ukonga iindleko kunye nokuphucula ukusebenza kwe-castings.
4. I-Ceramics kunye nezixhobo zombane
I-silicon carbide emnyama nayo yinto ebalulekileyo ekrwada kwiikeramics ezisebenzayo. Ingasetyenziselwa ukulungiselela i-ceramics yesakhiwo, i-ceramics engaguqukiyo, i-thermal conductive ceramics, njl., kwaye inamathemba abanzi kwimimandla ye-electronics, imboni yeekhemikhali, oomatshini, njl. Ine-conductivity egqwesileyo ye-thermal, kunye ne-thermal conductivity ukuya kwi-120 W / m · K, kwaye isoloko isetyenziswa kwi-thermal conductive materials kunye ne-interface ye-disrsipa yokushisa ukushisa.
Ukongeza, i-silicon carbide iye yangena ngokuthe ngcembe kwintsimi ye-semiconductors yamandla kwaye ibe yinto esisiseko kwi-high-temperature kunye nezixhobo eziphezulu ze-voltage. Nangona ukucoceka kwe-silicon carbide emnyama ingaphantsi kancinane kune-silicon carbide eluhlaza, iyasetyenziswa kwiimveliso ze-elektroniki eziphakathi kunye nezisezantsi.
5. I-Photovoltaic kunye namashishini amatsha amandla
I-silicon carbide powder emnyama isetyenziswa ngokubanzi ekusikeni ii-silicon wafers kwishishini le-photovoltaic. Njenge-abrasive kwinkqubo yokusika i-diamond wire, ineenzuzo zobunzima obuphezulu, obunamandlaukusikaamandla, ilahleko ephantsi, kunye nomgangatho wokusika ogudileyo, onceda ekuphuculeni ukusebenza kakuhle kunye nemveliso yee-silicon wafers kunye nokunciphisa izinga lokulahleka kwe-wafer kunye neendleko zemveliso.
Ngophuhliso oluqhubekayo lwamandla amatsha kunye nobuchwepheshe obutsha bezinto eziphathekayo, i-silicon carbide nayo iphuhliselwa amasimi asakhulayo afana ne-lithium ibhetri engathandekiyo yokongeza i-electrode kunye nabathwali be-ceramic membrane.
Ⅳ. Isishwankathelo kunye ne-Outlook
I-silicon carbide emnyama idlala indima engenakuphinda ithathelwe indawo kwiindawo ezininzi zemizi-mveliso ngoomatshini bayo abagqwesileyo, abashushu kunye neekhemikhali. Ngenkqubela phambili eqhubekayo yetekhnoloji yokuvelisa, ukulawulwa kobungakanani bamasuntswana emveliso, ukusulungekiswa kococeko kunye nokwandiswa okuqhubekayo kwemimandla yesicelo, i-silicon carbide emnyama iphuhlisa ukusebenza okuphezulu kunye nokuchaneka.
Kwixesha elizayo, ngokunyuka ngokukhawuleza kwamashishini afana namandla amatsha, i-ceramics ye-elektroniki, i-high-endukusila kunye nokuveliswa okukrelekrele, i-silicon carbide emnyama iya kudlala indima ebaluleke kakhulu kwimveliso ephezulu kwaye ibe yinxalenye ephambili yenkqubo yetekhnoloji yezinto eziphambili.