I-Green Silicon Carbide Micropowder: Inkwenkwezi Ekhulayo Yee-Abrasives Ezisebenza Kakhulu
Namhlanje, masiqhubeke nengxoxo yethu ngomnye umdlali onamandla kusapho oluhlaselayo—i-micropowder eluhlaza ye-silicon carbide. Abo kuthi kushishino ngasese bayibiza ngokuba yi-"Hulk," kwaye abacingi ukuba eli gama liyinto engaqhelekanga; ubuchule bayo buhambelana nelo gama. Kutshanje sixoxe ngokupheleleyo nge-alumina emhlophe exutywe kakuhle; ifana negcisa lenkundla elinobuchule, livelisa umsebenzi omhle nococekileyo. Kodwa "iHulk" yanamhlanje ifana kakhulu nejenerali ephambili ehlasela edabini, igxile kwiimfazwe ezinzima kwaye ijongana nemingeni enzima. Kutheni ibizwa ngokuba "yinkwenkwezi ephumayo"? Isizathu sokuqala "bubunzima" bayo.
I-silicon carbide eluhlaza ineyona ngxaki iphezulu phakathi kwe-abrasives eqhelekileyo, enobunzima be-Mohs obuyi-9.5, obungaphantsi kancinci kunedayimani. Musa ukuyithatha kancinci le ngxaki ye-0.5 ngaphezulu.i-alumina emhlophe exutyiweyo; xa usebenzisana nezinye izinto eziqinileyo, kwenza umahluko omkhulu. Izinto ezintsha zihlala zivela: iiseramikhi ze-silicon carbide, i-aluminium nitride, iglasi yesafire, ii-wafers ze-silicon ze-photovoltaic, i-carbide eqinisiweyo—nganye inzima kuneyokuqala. Ukusebenzisa izinto eziqhelekileyo ezirhabaxa kufana nokukrwela ilitye ngeshiti yesinyithi—kunzima kwaye akusebenzi.
Kodwa nge-silicon carbide micropowder eluhlaza, ilungile. Imiphetho yayo ecacileyo nebukhali isebenza njengezixhobo zokusika iidayimani ezincinci, "ihlafuna" ngempumelelo ezi zinto zinzima. Ingakumbi kwishishini le-photovoltaic, ukusika ezo monocrystalline kunye ne-polycrystalline silicon ingots eziqinileyo nezibuthathaka, uya kuyibona isetyenziswa kwinxalenye enkulu yemigca yemveliso. Ngaphandle kwayo, iindleko kunye nokusebenza kakuhle kwemveliso bekungayi kuncitshiswa. Oku kukubiza ngokuba "yinto enye ethoba enye."
Ngaphezu koko, ukuhanjiswa kwayo kobushushu kugqwesileyo ngokwenene.
Le nto ngokwayo yi-thermal conductor ebalaseleyo. Le yinzuzo enkulu kwiinkqubo zokusila. Khawuthelekelele, ukusila ngesantya esiphezulu kuvelisa ubushushu obukhulu ngoko nangoko. Ukuba obu bushushu abukwazi ukunyamalala buze buvaleleke ngaphakathi kwe-workpiece, kuyintlekele: umphezulu we-workpiece uthambekele "ekutshiseni" nasekuqhekekeni; iindawo zesinyithi zinokutsha, zitshintshe ubulukhuni bazo; kwaye ubukhulu bezinto ezichanekileyo bunokuba buchanekile ngenxa yokwanda kunye nokucutheka kobushushu.
I-micropowder ye-silicon carbide eluhlaza isebenza njenge "nkqubo yokusasaza ubushushu obuncinci" eyakhelwe ngaphakathi, ikhupha ubushushu ngokukhawuleza kude nendawo yokusila, inciphisa ngempumelelo ubushushu bendawo yokucubungula. Oku kunciphisa umonakalo kwindawo yokusebenza ebangelwa kukushisa kakhulu, kuqinisekisa umgangatho wokucubungula. Olu luphawu oluyimfuneko, ngakumbi kwizixhobo kunye neendawo ezinobuthathaka kakhulu kubushushu.
Ngaphezu koko, ipropati yayo “yokuzilola” igcina umsebenzi ubukhali rhoqo.
Izinto zokubrasha ezilungileyo aziyomveliso "eyenzeka kube kanye"; kufuneka zihlale ixesha elide.amasuntswana e-silicon carbide eluhlazaZiqinile kwaye zibuthathaka, xa zigaywa ngamandla okusila, amasuntswana abuthathaka aya kuqhekeka, aveze imiphetho emitsha, ebukhali ukuze aqhubeke nokusebenza. Olu phawu lubizwa ngokuba "kukuzilola ngokwako."
Oku kufana nokusebenzisa ipensile yoomatshini; xa iba buthuntu, uyayicinezela kwakhona, kwaye kuvela ipensile entsha ukuze iqhubeke nokuzoba. Oku kuthetha ukuba kuyo yonke inkqubo, amandla ayo okusika ahlala etsha kwaye enamandla, ngaphandle kokuba buthuntu ngokuhamba kwexesha. Ukusebenza kakuhle kokucubungula kuzinzile, kwaye umgangatho womphezulu wento yokusebenza uyafana, ukuthintela imeko apho umgangatho uphucuka ekuqaleni kodwa uwohloke kamva. Oku kubalulekile kwimveliso yanamhlanje, enkulu, ezenzekelayo.
Mandikubalisele ibali eliyinyani.
Kunyaka ophelileyo, umzi-mveliso owenza ii-nozzles zenjini ezisebenza kakuhle wandifowunela. Ii-nozzles zabo zenziwe ngee-ceramics ezikhethekileyo ezinobunzima obuphezulu kakhulu. Ukusebenzisa ii-abrasives eziqhelekileyo ekucutshungulweni kwakungasebenzi kakuhle kwaye kubiza kakhulu, okanye umgangatho womphezulu wawungaphantsi komgangatho, uhlala ubonisa ii-micro-cracks. Kamva, bazama ukusebenzisa i-green silicon carbide micropowder ekugayweni nasekupolishweni kakuhle, kwaye iziphumo zakhawuleza. Ukusebenza kakuhle akuzange kunyuke ngama-30-40% kuphela, kodwa okona kubaluleke kakhulu, phantsi kwe-microscope, umaleko womonakalo kumphezulu we-workpiece wawungabonakali phantse, kwaye izinga lemveliso landa kakhulu. Umphathi wabo kamva wakhalaza wathi, “Kubonakala ngathi umsebenzi awunzima; asikhethanga izixhobo ezifanelekileyo.”
Uyabona, yiloo nto amandla e-"Hulk"—kwicandelo layo lobuchule, inokusombulula iingxaki abanye abangenakukwazi ukuzisombulula.
Kakade ke, le "vanguard general" ayinazo iimpawu zayo ezintle. Nangona iqinile, ukuqina kwayo kuphantsi kakhulu, nto leyo eyenza ukuba iqine kancinci. Ke ngoko, xa usebenzisana nezinye izinto ezinobunzima obuphezulu, ezifana neentsimbi ezithile, isenokungasebenzi kakuhle njenge-alumina emhlophe edibeneyo. Ngaphezu koko, umbala wayo oluhlaza oluhlaza uvela kukungcola okuncinci; kwiinkqubo ezithile zokupholisha ze-semiconductor ezifuna ubumsulwa obukhulu beekhemikhali, nezinto ezicocekileyo zinokufuneka. Kodwa oku akunciphisi isikhundla sayo esiphezulu ekucutshungulweni kwezinto eziqinileyo nezibuthathaka.
Kutheni ke ngoko ithathwa njenge "nkwenkwezi ekhulayo"? Jonga nje iindlela zangoku nezexesha elizayo zoshishino: ii-semiconductors zesizukulwana sesithathu (i-silicon carbide, i-gallium nitride), amandla amatsha e-photovoltaic, iiseramikhi zeenqwelo-moya, iglasi ye-optical ephezulu… uninzi lwala mashishini okuphuma kwelanga axhomekeke kwizixhobo zokucubungula eziphambili eziqinileyo nezibuthathaka. I-micropowder ye-silicon carbide eluhlaza yenye yezona zixhobo zifanelekileyo nezisebenzayo zokujongana nezi ngxaki zinzima.
Amandla ayo akhula kunye nala mashishini asebenza ngobuchwepheshe obuphezulu. Lo gama nje la mashishini esakhula, kuya kubakho imfuno eqhubekayo ye-micropowder eluhlaza ye-silicon carbide esebenza kakhulu. Ishishini lethu elirhabaxa likwaphanda rhoqo indlela yokwenza amasuntswana alo afane ngakumbi kunye nonyango lomphezulu walo lube ngcono, ukuze lukhanye ngakumbi kweli xesha lithembisayo.