I-Silicon carbide, igama layo lamakhemikhali i-SiC noma igama lezohwebo elithi carborundum, iyinto eyingqayizivele eyenziwe umuntu eseyinsika yobunjiniyela besimanje. I-silicon carbide powder idalwe ngokuhlanganisa i-silicon ne-carbon emazingeni okushisa aphezulu kakhulu. Cishe yonke ingxenye ye-silicon carbide abrasive powder esetshenziswa ezimbonini namuhla ikhiqizwa ezithandweni ezinkulu zikagesi.
Namuhla, i-silicon carbide ayiyona nje "i-grinder." Kuyinto yobuchwepheshe obuphezulu esetshenziselwa ukwenza ama-chips ngaphakathi kwe-smartphone yakho, amabhuleki ezimotweni zezemidlalo ezinesivinini esikhulu, kanye nesambatho sokuzivikela esigqokwa amasosha. Ikhono layo lokumelana nokushisa okukhulu, ukumelana nokulimala kwamakhemikhali, nokuhlala libukhali ngisho nangaphansi kwengcindezi enkulu kuyenza ibe ukukhetha kokuqala konjiniyela abasebenza ezindaweni ezinzima kakhulu eMhlabeni.
Iningi le-SiC likhiqizwa kusetshenziswa inqubo ye-Acheson. Ngale ndlela, isihlabathi se-silica esihlanzekile kakhulu kanye ne-petroleum coke kufakwa esithandweni esikhulu sikagesi. Lapho isithando somlilo sifinyelela amazinga okushisa afinyelela ku-2,500 degrees Celsius, ukusabela kwamakhemikhali kwenzeka. I-silicon ne-carbon bond ndawonye ukuze kwakhiwe amakristalu amakhulu. Lawa makristalu abe esechotshozwa futhi agaywe abe osayizi abahlukahlukene ukuze akhe impushana esiyisebenzisa namuhla.
Impushana ihlungwa ngosayizi "wegrit". Impushana eqinile inezinhlamvu ezinkulu, ezimahhadlahhadla ezingasusa izinto eziningi ngokushesha. Impushana encane inezinhlamvu ezincane ezibushelelezi ezisetshenziselwa ukupholishwa. Imboni ilandela imithetho yamazwe ngamazwe njenge-FEPA kanye ne-ANSI ukuze kuqinisekiswe ukuthi isikhwama ngasinye se-silicon carbide abrasive powder sinosayizi oqondile wokusanhlamvu odingekayo emsebenzini othile. Lokhu kuvumelana yingakho abakhiqizi bengathembela ku-SiC ukuze uthole umsebenzi oqondile usuku nosuku.
.jpg)
Ukusebenza kwei-silicon carbide abrasive powderkuncike ekuhlanzekeni kwayo. Ngisho nenani elincane lezinye izakhi lingashintsha indlela impushana eziphatha ngayo. Ngezansi kunetafula elilula elibonisa ukuthi yini engaphakathi kwekhwalithi ephezulu ye-silicon carbide powder yekhwalithi ephezulu.
| Ingxenye/Ingxenye | I-Black Silicon Carbide (%) | I-Silicon Carbide Ehlaza (%) |
|---|---|---|
| I-Silicon Carbide (SiC) | 98.2% - 98.8% | 99.2% - 99.7% |
| Ikhabhoni yamahhala (C) | Ngaphansi kuka-0.2% | Ngaphansi kuka-0.1% |
| I-Iron oxide (Fe2O3) | Ngaphansi kuka-0.3% | Ngaphansi kuka-0.05% |
| I-Silica (SiO2) | Ngaphansi kuka-0.3% | Ngaphansi kuka-0.1% |
Njengoba ubona, i-silicon carbide eluhlaza inguqulo "ehlanzekile". Inokungcola okuningi kanye nokungcola okumbalwa, yingakho isetshenziselwa izinhlelo zokusebenza ezibucayi kakhulu, njengasembonini yezogesi.
Lezi zinombolo zibatshela ukuthi impahla ingasinda yini ekucindezelweni noma ekushiseni komsebenzi othile. Nazi izibalo zemishini ye-silicon carbide powder.
| Impahla Engokomzimba | Inani | Kungani Kubalulekile |
|---|---|---|
| Mohs Ukuqina | 9.2 - 9.5 | Ingakwazi ukusika cishe noma iyiphi insimbi noma itshe. |
| Ukuminyana | 3.20 g/cm³ | Inamandla kodwa ayinzima kakhulu. |
| I-Melting Point | 2,730°C (Ukuhlukaniswa) | Ingakwazi ukuphila emazingeni okushisa aphakeme kakhulu esithandweni. |
| I-Thermal Conductivity | 120 W/m·K | Kuyasiza ukupholisa amathuluzi ngenkathi esebenza. |
| Amandla Acindezelayo | 3,900 MPa | Kungathatha inani elikhulu lamandla okuchoboza. |
Lezi zinombolo zifakazela ukuthi i-silicon carbide abrasive powder yakhelwe izindawo eziyingozi kakhulu. Kuyinto esebenza kahle kakhulu edlula isihlabathi sendabuko noma i-aluminium oxide cishe kuzo zonke izigaba zobuchwepheshe.
Ngenxa yokuthi i-silicon carbide powder inezici eziningi ezikhethekile, isetshenziswa ezimbonini eziningi ezahlukene. Kunzima ukudlula usuku olulodwa ngaphandle kokusebenzisa into eyenziwe ngosizo lwe-SiC.
Lapho imboni idinga ukubumba ingxenye yensimbi eqinile, isebenzisa isondo lokugaya. Uma leyo ngxenye yenziwe ngento efana nensimbi ekhonjiwe noma insimbi engeyona insimbi (njenge-aluminium noma ithusi), i-silicon carbide iyisinqumo esingcono kakhulu. Ngokungafani namanye ama-abrasives, i-SiC ayibi buthuntu ngokushesha. Ihlephuka ibe yizicucu ezicijile, ngakho iqhubeka isika ngokuphumelelayo kuze kube yilapho okusanhlamvu kungasekho ngokuphelele.
Lezi yizinhlamvu ezincane kangangokuthi zizwakala njengofulawa. Lezi zimpushana zisetshenziselwa inqubo ebizwa ngokuthi "i-lapping." Isibonelo, amalensi akumakhamela aphezulu noma izibonakude kufanele abe bushelelezi ngokuphelele. Izisebenzi zisebenzisa i-silicon carbide abrasive powder kumxube owuketshezi ukuhlikihla kancane ingilazi ize isicaba ngokuphelele. Lokhu kuqinisekisa ukuthi ukukhanya kudlula kulensi ngaphandle kokuhlanekezela.
Izimoto zendabuko zisebenzisa ama-silicon chips ukuphatha amandla. Nokho, ama-EV adinga ukuhambisa ugesi omningi ngokushesha ukusuka ebhethrini ukuya emotweni. Ama-Silicon chips ashisa kakhulu futhi amoshe amandla. Onjiniyela bathola ukuthi uma besebenzisa i-silicon carbide esikhundleni salokho, ama-chips angakwazi ukuphatha ama-voltage aphezulu futhi ahlale epholile kakhulu.
Lokhu kusho ukuthi imoto kagesi ingaya phambili ngokushajwa okukodwa futhi ishaje ngokushesha esiteshini. I-high-purity silicon carbide powder iyisici sokuqala sokwenza lawa ma-chips athuthukile. Njengoba abantu abaningi beshintshela ezimotweni zikagesi, isidingo sekhwalithi ephezulu ye-silicon carbide powder sikhula ngokushesha kunangaphambili. Kuyisithako esiyimfihlo esenza izinto zokuhamba eziluhlaza zibe nokwenzeka.
.jpg)
Esikhathini esedlule, amavesti "angenanhlamvu" ayenziwa kakhulu ngensimbi esindayo noma izindwangu ezithambile. Namuhla, izikhali zempi ezisezingeni eliphezulu zisebenzisa amapuleti e-ceramic. Ukwenza lawa mapuleti, i-silicon carbide powder icindezelwa ibe yisimo futhi ifudunyezwe ize ibe ucezu oluqinile, oluqinile lwe-ceramic.
Uma inhlamvu yesivinini esikhulu ishaya ipuleti le-silicon carbide, i-ceramic empeleni ilukhuni kunenhlamvu. Ipuleti liphoqelela inhlamvu ukuba isicaba futhi iphihlike. Ngisho noma ipuleti lingase liqhekeke, limunca wonke amandla futhi livikele umuntu oligqokile. Ngenxa yokuthi i-SiC ilula kunensimbi, amasosha namaphoyisa angahamba kalula kuyilapho ehlezi ephephile. Lobu buchwepheshe busetshenziselwa ukuvikela izinhlangothi zamathangi nezindiza ezinophephela emhlane.
I-silicon carbide powder isetshenziselwa ukudala izinto "eziphikisayo". Lezi izinto eziklanyelwe ngokukhethekile ukuthi zihlale ziqinile ekushiseni. Isibonelo, "ifenisha" engaphakathi kwehhavini le-ceramic - amashalofu nezigxobo eziphethe ubumba - ngokuvamile zenziwe nge-silicon carbide.
Ngenxa yokuthi i-SiC inokwanda okuphansi kwe-thermal, ayikhuli noma inciphe kakhulu uma izinga lokushisa lishintsha. Lokhu kuvimbela izinto ekuqhekekeni. Uma usebenzisa amashalofu ensimbi, ayegoba noma ancibilike, kodwa i-silicon carbide ihlala isicaba ngokuphelele. Lokhu kwethembeka konga izimboni imali eningi ngoba akudingekile ukuthi zishintshe izingxenye zazo izikhathi eziningi.
Okokuqala, ngenxa yokuthi inzima kakhulu futhi ihlala isikhathi eside, amafekthri akudingekile ukuba ayisebenzise kakhulu. Imfucuza encane isho indawo encane eMhlabeni. Okwesibili, njengoba sishilo ngaphambili, kuyingxenye ebalulekile yobuchwepheshe ezimotweni zikagesi namapaneli elanga.
Ngamandla elanga,i-silicon carbide powder isetshenziselwa ukusika ama-ingots e-silicon abe ama-wafer amancane abamba ukukhanya kwelanga. Ukusika okuncane futhi okunembe kakhudlwana, i-solar panel iphumelela kakhulu. Ngokuhlinzeka ngamathuluzi okwenza amaphaneli elanga angcono kanye nama-EV, i-silicon carbide empeleni isiza umhlaba ukuthi usuke kuwoyela namalahle. Kuyinto "eluhlaza" ngezindlela ezingaphezu kweyodwa.
Ukuze ukhiphe ukugqwala okusindayo noma ukusika amatshe, i-silicon carbide emnyama eqinile ngokuvamile iyindlela engcono kakhulu futhi engabizi kakhulu. Kunzima futhi kwenza umsebenzi wenziwe ngokushesha.
Kodwa-ke, uma usebenza kokuthile okuntekenteke, njenge-computer chip noma ucezu lobucwebe, kufanele ubheke i-micro-powder ye-silicon carbide eluhlaza. Udinga futhi ukubheka "ukuhlanzeka" kwempushana. Ngokugaya izimboni, ukuhlanzeka okungu-98% kulungile. Kepha ekwenzeni izinto zikagesi, ungadinga ubumsulwa obungama-99.9%.
Kuyinto esebenza kahle kakhulu evala igebe phakathi kokukhiqizwa kwendabuko kanye nekusasa lobuchwepheshe. Ukuqina kwayo okwedlulele kusivumela ukuba silolonge izinsimbi namatshe aqine kakhulu. Ukumelana nokushisa kwayo okumangalisayo kugcina izimboni zethu zisebenza kanye nezimoto zethu zasemkhathini ziphephile. Izici zayo eziyingqayizivele zikagesi okwamanje ziguqula indlela esishayela ngayo kanye nendlela esisebenzisa ngayo amandla. Kusukela ku-computer chip encane kuya esithandweni somlilo esikhulu kunazo zonke sezimboni, i-silicon carbide abrasive powder inikeza amandla nokuthembeka okufunwa yimboni yesimanje. Njengoba siqhubeka nokusungula izinto ezintsha, leli "dayimane lezimboni" ngokungangabazeki lizohlala liphakathi kwenqubekelaphambili yethu yezobuchwepheshe.
1. Ingabe i-silicon carbide powder yemvelo noma yenziwe umuntu?
Nakuba ikhona emvelweni njenge-mineral ebizwa ngokuthi i-moissanite, ayivamile kakhulu futhi itholakala kuphela ngamanani amancane kuma-meteorite. Inguqulo yezimboni idalwe ezithandweni ezinkulu zikagesi kusetshenziswa isihlabathi nekhabhoni.
2. Ngingasebenzisa i-silicon carbide abrasive powder ukugaya okumanzi nokomile?
Yebo, i-silicon carbide isebenza kahle kakhulu kuzo zombili izindawo. Ivamise ukusetjenziswa ngendlela ye-"slurry" (ehlanganiswe namanzi namtjhana amafutha) ukupholisela ingilazi namawafa, kodwana ibuye isetjenziswe ku-sandpaper eyomileko ukwenza umsebenzi wezinkuni kanye nesimbi.
3. Kungani i-silicon carbide eluhlaza ibiza kakhulu kunomnyama?
I-silicon carbide eluhlaza ibiza kakhulu ngoba ihlanzekile kakhulu. Kudinga izinto zokusetshenziswa zekhwalithi ephezulu kanye nenqubo yokukhiqiza ecophelelayo ukuze kuqinisekiswe ukuthi kunokungcola okumbalwa okufana nensimbi noma ikhabhoni yamahhala.
4. Ingabe kuphephile ukuphatha i-silicon carbide powder?
I-silicon carbide ayinabo ubuthi. Nokho, ngenxa yokuthi impushana yenziwe ngamakristalu amancane, abukhali, ingalimaza amaphaphu akho uma uyiphefumula. Kufanele uhlale ugqoke imaski yothuli futhi usebenzise umoya ofanele lapho usebenza nempushana endaweni eyomile.
5. Ingabe i-silicon carbide powder iyagqwala?
Cha, i-silicon carbide iyimpahla ye-ceramic futhi ayinayo insimbi engagqwala. Iyakwazi ukumelana namanzi, usawoti kanye namakhemikhali amaningi, yingakho isetshenziswa emanzini namakhemikhali.
6. Kufanele ngiyigcine kanjani impushana?
Okubaluleke kakhulu ukuwugcina womile. Uma impushana iba manzi, inganqwabelana, okwenza kube nzima ukuyisebenzisa emishinini noma ekupholishweni okunembile. Yigcine esitsheni esivalekile endaweni epholile neyomile.
.png)
