Ukusetyenziswa kweFiber yeCarbon eNcinci kakhulu

Njengelungu eliphambili kwicandelo lee-composites eziphambili, i-ultra-short carbon fiber, eneempawu zayo ezikhethekileyo, ibangele ingqwalasela ebanzi kwiindawo ezininzi zoshishino kunye nezobuchwepheshe. Ibonelela ngesisombululo esitsha kraca sokusebenza okuphezulu kwezixhobo, kwaye ukuqonda okunzulu kweteknoloji kunye neenkqubo zayo zokusetyenziswa kubalulekile ukuqhuba uphuhliso lwamashishini anxulumene noko.

Ii-micrographs ze-electron zeefayibha zekhabhoni ezimfutshane kakhulu

Ngokwesiqhelo, ubude beefayibha zekhabhoni ezimfutshane kakhulu buphakathi kwe-0.1 – 5mm, kwaye uxinano lwazo luphantsi kwi-1.7 – 2g/cm³. Ngoxinano oluphantsi lwe-1.7 – 2.2g/cm³, amandla okutsalwa angama-3000 – 7000MPa kunye nemodulus yokuthamba engama-200 – 700GPa, ezi mpawu zibalaseleyo zoomatshini zakha isiseko sokusetyenziswa kwayo kwizakhiwo ezithwala umthwalo. Ukongeza, inokumelana okuhle kakhulu nobushushu obuphezulu, kwaye inokumelana nobushushu obuphezulu obungaphezulu kwama-2000°C kwindawo engena-oxidizing.

Itekhnoloji yoSetyenziso kunye neNkqubo yeFiber yeCarbon emfutshane kakhulu kwiNdawo yeAerospace

Kwintsimi yeenqwelo-moya, i-carbon fiber emfutshane kakhulu isetyenziselwa ukuqinisai-resinii-composites ze-matrix. Isitshixo sobuchwepheshe kukwenza i-carbon fiber isasazeke ngokulinganayo kwi-resin matrix. Umzekelo, ukwamkela ubuchwepheshe bokusasazwa kwe-ultrasonic kunokuphelisa ngempumelelo isiganeko sokuhlanganiswa kwe-carbon fiber, ukuze i-dispersion coefficient ifikelele ngaphezulu kwe-90%, ukuqinisekisa ukuhambelana kweempawu zezinto. Kwangaxeshanye, ukusetyenziswa kwetekhnoloji yonyango lomphezulu we-fiber, njengokusetyenziswa kweiarhente yokudibanisaunyango, lungenzaifayibha yekhabhonikwaye amandla ebhondi yojongano lwe-resin anyuke nge-30% - 50%.

Ekwenzeni amaphiko eenqwelo-moya kunye nezinye izinto zokwakha, kusetyenziswa inkqubo yetanki yokucinezela eshushu. Okokuqala, ifayibha yekhabhoni emfutshane kakhulu kunye ne-resin exutywe nomlinganiselo othile owenziwe nge-prepreg, ifakwe kwi-tank yokucinezela eshushu. Emva koko iyanyangwa kwaye ibunjwe kubushushu obuyi-120 - 180°C kunye noxinzelelo lwe-0.5 - 1.5MPa. Le nkqubo inokukhupha ngempumelelo amaqamza omoya kwizinto ezidityanisiweyo ukuqinisekisa ubuninzi kunye nokusebenza okuphezulu kweemveliso.

Ubuchwepheshe kunye neenkqubo zokusetyenziswa kwe-Ultra-Short Carbon Fiber kwiShishini leeMoto

Xa kusetyenziswa i-carbon fiber emfutshane kakhulu kwiindawo zeemoto, ingqwalasela ikukuphucula ukuhambelana kwayo nezinto ezisisiseko. Ngokongeza izinto ezithile ezihambelanayo, ukunamathelana phakathi kwe-carbon fibers kunye nezinto ezisisiseko (umz.i-polypropylene, njl. njl.) inokwandiswa malunga nama-40%. Kwangaxeshanye, ukuze kuphuculwe ukusebenza kwayo kwiindawo ezixineneyo, iteknoloji yoyilo lwe-fiber orientation isetyenziselwa ukulungisa indlela yokulungelelaniswa kwefayibha ngokwendlela yoxinzelelo kwinxalenye.

Inkqubo yokubumba ngenaliti idla ngokusetyenziswa ekwenzeni izinto ezifana nee-automobile hood. Iifayibha zekhabhoni ezimfutshane kakhulu zixutywa neeplastiki kwaye emva koko zifakwe kwi-mold cavity ngokusebenzisa ubushushu obuphezulu kunye noxinzelelo. Ubushushu bokufaka ngenaliti buhlala buyi-200 - 280 ℃, uxinzelelo lokufaka ngenaliti yi-50 - 150 MPa. Le nkqubo inokufezekisa ukubumba ngokukhawuleza kweendawo ezimile ngendlela enzima, kwaye inokuqinisekisa ukusasazwa okufanayo kweefayibha zekhabhoni kwimveliso.

Ubuchwepheshe kunye neNkqubo yoSetyenziso lweFayibha yeCarbon efutshane kakhulu kwiCandelo lee-elektroniki

Kwicandelo lokusasazwa kobushushu nge-elektroniki, ukusetyenziswa kokuqhuba ubushushu beefayibha zekhabhoni ezimfutshane kakhulu kubalulekile. Ngokuphucula inqanaba le-graphitization yefayibha yekhabhoni, ukuqhuba kwayo ubushushu kunokwandiswa ukuya kuthi ga kwi-1000W/(mK). Okwangoku, ukuqinisekisa ukunxibelelana kwayo kakuhle nezixhobo ze-elektroniki, iteknoloji yokwenza isinyithi kumphezulu, efana ne-chemical nickel plating, inokunciphisa ukumelana komphezulu wefayibha yekhabhoni ngaphezulu kwe-80%.

Inkqubo yokunyibilikisa umgubo ingasetyenziswa ekwenziweni kwee-heatsinks ze-CPU zekhompyutha. I-fiber yekhabhoni emfutshane kakhulu ixutywe nomgubo wesinyithi (umz. umgubo wekopolo) kwaye itshiswe phantsi kobushushu obuphezulu kunye noxinzelelo. Ubushushu bokutshiza buhlala buyi-500 - 900°C kwaye uxinzelelo luyi-20 - 50 MPa. Le nkqubo ivumela i-fiber yekhabhoni ukuba yenze umjelo ofanelekileyo wokuhambisa ubushushu ngesinyithi kwaye iphucula ukusebenza kakuhle kokusasazwa kobushushu.

Ukusuka kwi-aerospace ukuya kwishishini leemoto ukuya kwi-elektroniki, kunye nophuhliso oluqhubekayo lwetekhnoloji kunye nokwenza ngcono iinkqubo, imfutshane kakhuluifayibha yekhabhoniiza kuqaqamba kwiindawo ezininzi, ifaka amandla angakumbi kwisayensi netekhnoloji yanamhlanje kunye nophuhliso lwemizi-mveliso.