Ukulungiswa kwe-ceramic silicon carbide - Iinkqubo, izicelo kunye neentlobo

I-Precision machined sintered silicon carbide components ezicutshungulwa yiSingapore Fountyl Technologies PTE Ltd., Kuzo zonke izicelo ezifuna amacandelo obunjineli obuchanekileyo obuphezulu, kubalulekile ukuqaphela ubunzima bokucubungula i-silicon carbide. Ngaphandle kwexabiso layo eliphezulu lobulukhuni, iseyinto enqabileyo enokucutshungulwa kuphela kusetyenziswa ubuchule bokusila idayimani. ngoko ke, ukusebenza ngomatshini ngabaqhubi abanobuchule kunye nabanamava kunenzuzo, njengoko iinkqubo ezingalunganga zingenza umonakalo ongaphantsi komhlaba kunye ne-micro-cracks enokubangela ukungaphumeleli kwangaphambi kwexesha xa icandelo liphantsi koxinzelelo lokusebenza ekusebenzeni.

I-silicon carbide yokwenziwa:

Ngokuqhelekileyo, i-silicon carbide iveliswa kusetyenziswa inkqubo ye-Acheson, ebandakanya ukufudumeza isanti ye-silica kunye nekhabhoni kumaqondo obushushu aphezulu kwisithando somlilo se-Acheson graphite. Isenokwenza umgubo ocolekileyo okanye izigaqa ezibotshiweyo kwaye kufuneka zicolwe kwaye zicolwe phambi kokuba zisetyenziswe njengomgubo ekrwada. Nje ukuba i-silicon carbide ikwimo yomgubo, iinkozo zekhompawundi zinokudityaniswa kunye ngokuntywila ukwenza i-ceramic yobunjineli eluncedo kakhulu enoluhlu olubanzi losetyenziso kumashishini amaninzi okuvelisa.

Iintlobo ze-silicon carbide:

Iimveliso ze-silicon ze-carbide zezicelo zobunjineli bezorhwebo ziveliswa kwiifom ezintathu. Zezi:

I-Sintered Silicon Carbide (SSC)

I-Nitride edibeneyo ye-silicon carbide (NBSC) kunye

I-silicon Carbide esebenzayo (RBSC)

Olunye ulwahlulo lwekhompawundi lubandakanya udongwe lwesilicon carbide kunye neSiAlon-bonded silicon carbide. Kukwakho nomphunga wekhemikhali ofakwe kwisilicon carbide ebizwa ngokuba yiCVD silicon carbide, eluhlobo olusulungekileyo kakhulu lwekhompawundi.

Ukuze udibanise i-silicon carbide, kuyimfuneko yokongeza i-agent ye-sintering, enceda ukwenza isigaba solwelo kwiqondo lobushushu le-sintering, ngaloo ndlela ibophelela iinkozo ze-silicon carbide kunye.

Usetyenziso oluphambili lwesilicon carbide:

I-Silicon carbide inemisebenzi emininzi kumashishini ahlukeneyo. Ubunzima bayo bomzimba buyenza ilungele ukusetyenzwa kwe-abrasive yokusila, i-honing, i-sandblasting kunye nokusika i-waterjet.

I-silicon carbide inokumelana namaqondo obushushu aphezulu kakhulu ngaphandle kokwaphuka okanye ukonakala kwaye isetyenziselwa ukwenza iidiski ze-ceramic brake kwiimoto zemidlalo. Ikwasetyenziswa kwiivesti ze-bulletproof njengento yokuxhobisa kunye nesixhobo sokutywina se-pump shaft seals, apho ihlala isebenza ngesantya esiphezulu xa idibana ne-silicon carbide seals efanayo. Enye yeenzuzo eziphambili zezi zicelo kukuqhuba kwe-thermal ephezulu ye-silicon carbide, ekwazi ukutshabalalisa ubushushu obukhukhulayo obuveliswa yi-interface ye-friction.

Ubulukhuni obuphezulu bezinto eziphathekayo buvumela ukuba busetyenziswe kwizicelo ezininzi zobunjineli ezifuna iqondo eliphezulu lokutyibilika, ukhukuliseko, kunye nokunxitywa kwe-corrosion. Ngokuqhelekileyo oku kungasetyenziselwa amacandelo asetyenziswa kwiimpompo, okanye umzekelo iivalvu kwizicelo ze-oilfield, apho amacandelo esinyithi emveli angabonisa amazinga okunxiba ngokugqithiseleyo, okukhokelela ekungaphumelelini ngokukhawuleza.

Ikhompawundi ineempawu zombane ezizodwa njenge-semiconductor, iyenza ilungele ukwenziwa kwe-ultra-fast and high-voltage light-emitting diodes, MOSFETs, kunye ne thyristors for high-power switches.

Izinto eziphathekayo zine-coefficient ephantsi yokwandiswa kwe-thermal, ukuqina, ukuqina kunye ne-thermal conductivity, okwenza kube yinto efanelekileyo yesibuko se-telescopes yeenkwenkwezi. Iintsinga ze-silicon carbide, ezibizwa ngokuba yi-filaments, zisetyenziselwa ukulinganisa ubushushu begesi kusetyenziswa ubuchule be-optical obubizwa ngokuba yi-filament pyrometry.

Ikwasetyenziselwa ukufudumeza izinto ezifuna ukulungiswa kumaqondo obushushu aphezulu kakhulu. Ikwasetyenziswa nakumandla enyukliya ukubonelela ngenkxaso yesakhiwo kwiziphehli zobushushu obuphezulu begesi epholileyo.