I-silicon carbide eluhlaza kunye ne-silicon carbide emnyama: Umahluko onzulu ngaphaya kombala

I-silicon carbide eluhlaza kunye ne-silicon carbide emnyama: Umahluko onzulu ngaphaya kombala

Kwintsimi enkulu yezinto zoshishino,i-silicon carbide eluhlazakwayei-silicon carbide emnyama zidla ngokukhankanywa kunye. Zombini zi-abrasives ezibalulekileyo ezenziwe ngobushushu obuphezulu bokunyibilika kwiziko lokumelana nezinto ezikrwada ezifana nesanti ye-quartz kunye ne-petroleum coke, kodwa iyantlukwano yazo ingaphezulu lee kunomahluko wemibala kumphezulu. Ukusuka kwiiyantlukwano ezifihlakeleyo kwizinto eziluhlaza, ukungafani kweempawu zokusebenza, ukuya kumahluko omkhulu kwiimeko zesicelo, ezi ntlukwano ziye zabumba ngokudibeneyo iindima ezizodwa zesibini kwintsimi yezoshishino.

I-1 Umahluko kwizinto ezihlambulukileyo kunye nesakhiwo sekristale sinquma iimpawu ezahlukeneyo zezi zibini.

I-silicon carbide eluhlazayenziwe ngepetroleum coke kunye nesanti yequartz njengezona zinto ziphambili, kwaye ityuwa yongezwa ukuze kusulungekiswe. Ngale nkqubo, umxholo wokungcola uyancipha ukuya kwinqanaba elikhulu, kwaye i-crystal yinkqubo eqhelekileyo ye-hexagonal enemiphetho ebukhali kunye neekona. Ukulungiswa kwezinto ezikrwada ze-silicon carbide kulula, kwaye akukho tyuwa yongezwayo. Ukungcola okufana nentsimbi kunye ne-silicon eshiywe kwizinto eziluhlaza zenza ukuba amasuntswana ayo ekristale angahambi ngendlela kwaye ajikelezwe kwaye abe buthuntu emaphethelweni nakwiikona.

2 Umahluko kwimathiriyeli ekrwada kunye nolwakhiwo lukhokelela kwiimpawu zembonakalo ezahlukeneyo zezi zimbini.

Ngokumalunga nobunzima, ubunzima be-Mohsi-silicon carbide eluhlazaimalunga ne-9.5, okwesibini kuphela kwidayimane, kwaye iyakwazi ukucubungula izinto ezinobunzima obuphezulu; I-silicon carbide emnyama imalunga ne-9.0, kunye nobunzima obuphantsi kancinci. Ngokumalunga nokuxinana, i-silicon carbide eluhlaza yi-3.20-3.25g/cm³, enesakhiwo esixineneyo; I-silicon carbide emnyama yi-3.10-3.15g/cm³, ikhululekile. Ngokubhekiselele ekusebenzeni, i-silicon carbide eluhlaza inobunyulu obuphezulu, i-conductivity efanelekileyo ye-thermal, i-conductivity yombane kunye nokumelana nokushisa okuphezulu, kodwa i-brittle kwaye kulula ukuyiqhekeza kwimida emitsha; I-silicon carbide emnyama inomgangatho ophantsi we-thermal conductivity kunye ne-conductivity yombane, i-brittleness ephantsi, kunye nefuthe elinamandla lokuchasa amasuntswana.

3 Umahluko wentsebenzo umisela ugxininiso lwesicelo kwezi zibini.

I-silicon carbide eluhlaza ineubunzima obuphezulukunye namasuntswana abukhali, kwaye ilungile ekuqhubeni ubulukhuni obuphezulu kunye nezixhobo eziphantsi: kwintsimi engeyiyo isinyithi, ingasetyenziselwa ukugaya iglasi, ukusika i-ceramic, ii-semiconductor silicon wafers, kunye ne-sapphire polishing; kwiprosesa yesinyithi, inomsebenzi ogqwesileyo wokuchaneka okuphezulu kwezinto ezifana ne-carbide enesamente kunye nentsimbi eqinile, kwaye isetyenziswa ngokubanzi kwiimveliso ezifana nokusila amavili kunye neediski zokusika. I-silicon carbide emnyama iqhuba ubukhulu becala ubulukhuni obuphantsi, izinto ezinobunzima obuphezulu kwaye ilungele ukusetyenzwa kweentsimbi ezingezizo ezoni kunye nezixhobo eziphikisayo ezifana nentsimbi, ubhedu kunye ne-aluminium. Kwiimeko ezinqabileyo ezifana nokuchithwa kwe-deburring kunye nokususwa kwentsimbi yentsimbi, kuye kwaba yinto eqhelekileyo kwishishini ngenxa yeendleko eziphezulu.

Nangona i-silicon carbide eluhlaza kunyei-silicon carbide emnyamabezenkqubo ye-silicon carbide, iipropathi zabo zomzimba kunye neekhemikhali kunye neempawu zesicelo zahluke kakhulu. Ngokuqhubekayo ngokutsha kwezinto zesayensi kunye neteknoloji yokucubungula, i-silicon carbide eluhlaza kunye ne-silicon carbide ilindeleke ukuba ifezekise ukwandiswa kwesicelo esibanzi kwiinkalo zobugcisa obuphezulu ezifana nokuveliswa kwe-semiconductor, ukugaya ngokuchanekileyo, kunye namandla amatsha, ukubonelela ngenkxaso yezinto eziphambili kuphuhliso oluphezulu lweshishini lanamhlanje.