Ixabiso leGreen Silicon Carbide Micropowder kwiPrecision Instrument Manufacturing
Xa ungena kwiindawo zokusebenzela izixhobo ezichanekileyo, apho umntu anokuva khona ukubetha kwentliziyo yakhe, umoya uzaliswa livumba eliphantsi le-coolant. U-Old Master Li, ejonge phantsi, uhlola ibhloko yokulinganisa i-tungsten carbide esandula ukucolwa eneglasi yokukhulisa, embombozela esithi, “Kule mihla, lo msebenzi uya usiba nzima ngakumbi. Impazamo enye, nokuba yi-10000 yeenwele, ingaphula yonke into!” Enyanisweni, intliziyo yezixhobo ezichanekileyo—iilensi ze-optical, ii-ceramic bearings, kunye nee-carbide probes—nganye ingumceli mngeni omkhulu: iimfuno eziqinileyo, ezibuthathaka, kodwa ezinobukhulu obufanayo zifikelela kwinqanaba le-nanometer. Okwangoku, i-micropowder eluhlaza eqaqambileyo idlala indima “yeqhawe elingasemva kweziganeko”—i-green silicon carbide micropowder, “i-scalpel ye-micrometer-level” ebalulekileyo ekuveliseni ngokuchanekileyo.
I-silicon carbide eluhlaza (i-SiC) ayisiyontlabathi nje kuphela. Ingcebo eyenziwe ngezinto eziluhlaza ezifana nesanti ye-quartz kunye ne-petroleum coke kwisithando somlilo, inokwakheka okuqinileyo ngokwendalo (ubulukhuni be-Mohs obuyi-9.5, obulandelayo emva kwedayimani kunye ne-cubic boron nitride). Okumangalisayo ngakumbi yimiphetho yayo yekristale ebukhali njengemela kunye neempawu zayo zekhemikhali ezizinzileyo kakhulu, ezivumela ukuba imelane namaqondo obushushu aphezulu kwaye imelane naluphi na ukuphazamiseka kwezinto ezicutshungulwayo. Emva kokutyunyuzwa nokuhluzwa ngononophelo, ezi micropowders eziluhlaza ezikhazimlayo, ezincinci njengee-microns ezimbalwa okanye amaqhekeza e-micron, zifana "nenkampani yeeblade ezincinci ezibukhali" ezicwangcisiweyo nezibukhali ezenzelwe ngokukodwa ukujongana nezinto ezinzima kakhulu, ezibuthathaka kakhulu ngocoselelo olunzima.
Ukujongana nobunzima: "Utshaba" lwe-carbide kunye neeseramikhi
Izixhobo zokusika iikhabhayithi, izihlalo zeebheringi zeceramic, kunye neeringi zokuvala iikhabhayithi zesilicon zifumaneka kakhulu kwizixhobo ezichanekileyo. Ezi zinto zinzima kangangokuba izixhobo eziqhelekileyo zokukrala ziyasokola ukungena kuzo, nto leyo ebangela ukusebenza okuphantsi kwaye ziqhekezeke kwaye ziqhekeke. Ukufika kwe-green silicon carbide micropowder kutshintsha ngoko nangoko indawo. “Bendisoloko ndigaya iincam ze-carbide probe ngononophelo olukhulu, njengokugrumba, kwaye imiphetho idla ngokuqhekeka,” utshilo uXiao Wang, osebenzisa isixhobo sokugaya umphezulu ochanekileyo. “Ukususela oko ndisebenzisa ulwelo lokugaya olwenziwe nge-green silicon carbide micropowder, ndiye ndaqiniseka ngakumbi! Isantya sokutya sikhawuleza, amandla okugaya avakala 'eqinile' ngakumbi, kwaye okubalulekileyo kukuba, ukuthembeka komphetho kungcono kakhulu, kunye nokuqhekeka okuncinci kakhulu.” Imfihlo emva koku ikubunzima obuphezulu kakhulu kunye nemiphetho ebukhali ye-green silicon carbide micropowder, ethi “inqumle” izinto endaweni yokuyityumza ngamandla amakhulu. Oku kunciphisa kakhulu umonakalo kwiindawo zokusebenza ezibuthathaka kwaye kwandisa kakhulu ukusebenza kakuhle kokucubungula.
Ukuzoba "Intliziyo Yeglasi": Iingcali Zokupholisha Izixhobo Zokubona Nezokukhupha Izinto
Amehlo ezixhobo ezichanekileyo—iilensi ze-optical kunye neeprism, kunye nee-semiconductor wafers kunye nee-MEMS sensor chips—zifuna iindawo ezithambileyo njengesikhumba sosana (uburhabaxa beRa budla ngokufikelela kwinqanaba le-nanometer), kungekho ndawo yokukrwela okanye umonakalo ongaphantsi komhlaba. I-micropowder ye-silicon carbide eluhlaza iguquka ibe yinkosi yokupholisha ethambileyo. Ngexesha lezigaba zokuleqa nokupholisha, i-micropowder ye-silicon carbide eluhlaza enobukhulu besuntswana obuncinci (i-W-grade okanye enciphileyo) isetyenziswa kwaye ixhonywe kulwelo lokupholisha olucwangcisiweyo ngokukodwa. “Kwii-quartz crystal oscillators okanye iindawo ezichanekileyo, ukumiswa kwepowder ye-silicon carbide eluhlaza kusebenza ngcono kunezinye izinto ezibiza kakhulu,” utshilo igcisa elinamava elineminyaka engamashumi amabini kwi-workshop ye-optical. “Inika amandla okusila azinzileyo, kwaye amasuntswana afanayo awanakwenzeka ukuba ahlangane kwaye akrwele umphezulu. Umphezulu opholisiweyo awukhazimli, kwaye umaleko womonakalo ongaphantsi komhlaba awunzulu, nto leyo ibalulekileyo ekudluliseleni kwe-optical kunye nokuzinza kwexesha elide kwezixhobo ze-optical!” Ukungangeni kakuhle kweekhemikhali ze-silicon carbide eluhlaza kuqinisekisa ukuba inkqubo yokupolisha ayizisi ukungcola kunye nongcoliseko, nto leyo eqinisekisa ubunyulu benxalenye yokugqibela.
Ukubumba ngokuchanekileyo: "Imela Yokukrola" yeeMicroparts Ezintsonkothileyo
Izixhobo ezichanekileyo zizaliswe zizo zonke iintlobo zee-microparts ezimile ngendlela engaqhelekanga: ii-insulators ze-ceramic ezimile ngendlela engaqhelekanga, imingxunya kwiitships ze-microfluidic, kunye nee-micro-gears ezenziwe nge-carbide eqinisiweyo. Ezi ndawo zixinene kwaye ziyinkimbinkimbi, okwenza izixhobo zemveli zingafikeleleki. I-micropowder ye-silicon carbide eluhlaza, edibene netekhnoloji yokulungisa ngokuchanekileyo, iba sisixhobo esinamandla "sokukrola kancinci." Umzekelo, ukongeza i-powder ye-silicon carbide eluhlaza ecoliweyo kulwelo lokugaya ukuze kugaywe ngokuchanekileyo okanye kugaywe ngocingo kunokuphucula kakhulu ukusebenza kakuhle kokugaya kunye nokuchaneka kwe-contour yezinto eziqinileyo. "Ukwenza loo mngxuma mncinci weenwele kwi-nozzle ye-carbide kukuthetha ukuyigaya kancinci kancinci nge-grinding paste efakwe i-green silicon carbide powder, edibene nentloko yokugaya yedayimani ebhityileyo njengenaliti," utshilo uZhao, ojongene nokugcinwa kwe-mold ngokuchanekileyo. "Idala iindonga zemingxuma ezithe tye nezigudileyo, kunye nolawulo oluhambelanayo ngaphakathi kwee-micrometer. Ukusebenzisa ezinye ii-powders akuvelisi siphumo sichanekileyo kangaka." Kwi-machining encediswa yi-ultrasonic, i-green silicon carbide powder liqabane elihle kakhulu lokungcangcazela okukhawulezayo, okuvumela ukubhola ngokuchanekileyo, ukusika, kunye nokucubungula kakuhle i-contour yezinto eziqinileyo neziqhekekileyo.
Ukusebenzisa Kakuhle Le “Micron Knife”: Amava avela kwiWorkshop
Njengoko izixhobo zokuchaneka ziqhubeka zisiba zincinci, zikrelekrele, kwaye zifikelela ekusebenzeni okuphezulu nangakumbi, iimfuno zokuchaneka kokwenziwa kwezinto eziphambili ziya kuba nzima ngakumbi. Itekhnoloji yepowder ye-silicon carbide eluhlaza nayo iphucuka rhoqo. Ii-Micropowders ezinokusasazwa kobukhulu be-particle, ii-particles ezincinci (i-nanoscale), kunye ne-morphology elawulekayo (njengokuqhekeka okuncinci ukunciphisa ukukrwela) ziindawo ezishushu zophando nophuhliso. Iinjineli zikwazama rhoqo ukudibanisa ngcono ii-micropowders ze-silicon carbide eluhlaza kwiiyunithi zokucubungula ezizenzekelayo nezikrelekrele (ezifana nezikhululo zokupolisha zerobhothi kunye neenkqubo zokusila ezihambelanayo kunye nokubeka esweni kwi-intanethi) ukuze kufezekiswe ukuveliswa okuchanekileyo okuzinzileyo nokusebenzayo. Kwiiworkshops zokuchaneka zexesha elizayo, le "scalpel yenqanaba le-micrometer" ngokuqinisekileyo iya kuba bukhali kwaye ibe krelekrele ngakumbi.