Hauv kev lag luam niaj hnub hloov pauv sai sai, kev tsim kho tshiab hauv cov khoom siv thev naus laus zis tau dhau los ua qhov tseem ceeb los txiav txim siab cov khoom lag luam kev sib tw thiab kev ua lag luam lub neej. Raws li kev tsim khoom thoob ntiaj teb txuas ntxiv mus rau kev sib tw, lub zog siab, thiab kev ruaj khov, cov ntawv carbon fiber ntau tsis txwv rau qhov siab -kawg teb xws li aerospace lossis Formula One kev sib tw, tab sis tau siv sai heev hauv ntau qhov kev lag luam suav nrog siab - khoom siv hluav taws xob, khoom siv kho mob, khoom siv ntse, thiab kev lag luam automation. Yuav ua li cas kom muaj txiaj ntsig zoo ntawm cov ntawv carbon fiber ntau nyob rau hauv cov ntsiab lus ntawm cov khoom siv kho tshuab, kev ruaj ntseg, thiab kev tiv thaiv corrosion los txhim kho cov khoom tsim, txhim kho kev ua tau zoo, thiab ntxiv tsim kom muaj kev sib tw sib txawv tau dhau los ua qhov teeb meem tseem ceeb ntawm kev tsom mus rau cov engineers niaj hnub thiab cov neeg tsim khoom.
Yuav ua li cas cov khoom siv ntawm cov ntawv carbon fiber reshape cov qauv kev ua haujlwm ntawm cov khoom?
Lub ntsiab kom zoo dua ntawm cov ntawv carbon fiber yog nyob rau hauv lawv lub zog tshwj xeeb thiab cov qauv tshwj xeeb. Hauv kev tsim cov khoom lag luam niaj hnub, kev ua haujlwm zoo feem ntau txhais tau tias txo qhov hnyav tag nrho thaum ua tau raws li qhov yuav tsum tau muaj zog thiab nruj. Txawm hais tias cov khoom siv hlau ib txwm muaj xws li steel thiab aluminium alloys muaj cov txheej txheem ua tiav thiab kev ua haujlwm ruaj khov, lawv lub peev xwm los txhim kho qhov hnyav yog qhov txwv.
Noj cov ntawv T300 thiab T700 qib carbon fiber ntau ua piv txwv, lawv lub zog tensile feem ntau ncav cuag 3500-4900 MPa, thaum lawv cov khoom ntom ntom tsuas yog li 1.5-2.0 g / cm³. Hauv qhov sib piv, lub zog tensile ntawm cov qauv zoo tib yam yog feem ntau 400-600 MPa, tab sis nws qhov ceev yog siab li 7.8 g / cm³. Qhov ntawd yog hais tias, nyob rau hauv tib lub sijhawm thauj khoom, cov khoom siv ua los ntawm cov ntawv carbon fiber ntau tuaj yeem ua tau ntau dua 70% sib zog dua li cov qauv hlau ib txwm muaj, thaum tseem tuav cov qauv zoo heev thiab rigidity.
Nyob rau hauv daim ntawv thov ntawm siab - lub zog carbon fiber los xij, cov qauv zoo coj los ntawm lawv lub zog tshwj xeeb thiab kev nruj nruj tuaj yeem raug txhais ncaj qha rau hauv cov khoom sib tw. Ua ib qho kev lag luam drone ua piv txwv, siv cov ntawv carbon fiber ntau rau lub fuselage thav duab tuaj yeem tsis tsuas yog txo qhov hnyav tag nrho thiab txhim kho lub davhlau, tab sis kuj muaj kev khoov zoo thiab cov qauv kev ruaj ntseg nyob rau hauv siab - davhlau ceev thiab kev ua haujlwm nyuaj. Rau siab - cov cuab yeej ua tau zoo, qhov kev txhim kho kev ua tau zoo los ntawm cov khoom siv nws tus kheej feem ntau yog qhov nyuaj los hloov los ntawm kev ua kom zoo tshaj plaws los yog kev hloov kho hluav taws xob kho vajtse ib leeg.
Peb tuaj yeem siv cov anisotropy ntawm cov ntawv carbon fiber ntau rau kev tsim qauv?
Tsis zoo li cov khoom isotropic ntawm cov khoom siv hlau ib txwm siv, cov ntawv carbon fiber ntau yog cov khoom siv anisotropic, thiab lawv cov khoom siv sib txawv sib txawv nrog cov kev hloov pauv hauv fiber ntau. Txawm hais tias tus yam ntxwv no ua rau muaj kev xav tau ntau dua ntawm cov qauv tsim thiab kev tsim vaj tsev, nws kuj tseem muab kev hloov pauv ntau dua rau kev kho cov ntawv carbon fiber ntau layup designs.
Los ntawm kev kho lub kaum sab xis ntawm lub prepreg, xws li 0 degree, 90 degree, los yog ± 45 degree, engineers tau precisely tswj lub zog, txhav, thiab torsional zog ntawm cov ntaub ntawv carbon fiber nyob rau hauv sib txawv cov lus qhia kom tau raws li cov kev xav tau kev ntxhov siab. Piv txwv li, rau cov khoom siv uas feem ntau dais uniaxial tensile loads, fiber ntau tuaj yeem ua kom pom tseeb hauv 0℃kev taw qhia kom ua tiav lub zog tensile ntau dua nrog qhov hnyav hnyav; Thaum rau cov khoom siv uas xav tau los tiv thaiv lub zog shear, khoov kev ntxhov siab, lossis kev thauj khoom nyuaj ib txhij, ib qho quasi - isotropic layup scheme feem ntau yog siv los ua kom tiav cov khoom sib npaug ntau dua.
Qhov kev tsim qauv no ntawm "txhais cov khoom siv raws li kev xav tau" muab cov ntaub ntawv carbon fiber ntau uas tsis muaj qhov sib piv hauv cov khoom tsim kom zoo dua piv rau cov khoom siv ib txwm muaj. Noj cov khoom ua si siab - kawg cov khoom ua si ua piv txwv, hauv kev tsim cov pa roj carbon fiber ntau lub tsheb kauj vab, caij skis, lossis cov cuab yeej sib tw, cov kws ua haujlwm tuaj yeem ua kom zoo dua cov qauv hauv zos kom ua tiav kev sib xyaw ua ke ntawm siab - kev txhawb nqa nruj hauv qee qhov chaw thiab hloov pauv kev poob siab rau lwm tus, yog li ua tiav qhov zoo tshaj plaws sib npaug ntawm kev tuav, ruaj khov, thiab kev nplij siab.
Cov txiaj ntsig zoo li cas yog cov tshuaj ruaj khov ntawm cov ntawv carbon fiber ntau hauv cov cheeb tsam hnyav?
Rau cov khoom siv dav hauv marine engineering, cov cuab yeej siv tshuaj, lossis kev kho mob kom tsis muaj menyuam, feem ntau yog qhov tseem ceeb cuam tshuam rau cov khoom siv lifespan thiab stability. Piv nrog rau cov khoom siv hlau tsoos, cov ntawv carbon fiber ntau muaj qhov zoo dua hauv kev ruaj ntseg tshuaj. Vim tias muaj cov tshuaj lom neeg tsis zoo ntawm cov pa roj carbon nws tus kheej, cov nplooj ntawv carbon fiber feem ntau tuaj yeem tiv taus qhov yaig ntawm feem ntau cov kua qaub, alkalis, thiab cov kuab tshuaj organic, yog li tswj kev ua haujlwm ruaj khov txawm tias nyob hauv ib puag ncig nyuaj.
Thaum txhim kho corrosion-cov ntaub ntawv carbon fiber ntau, cov engineers feem ntau tsis tas yuav xav txog cov teeb meem ntxiv xws li tiv thaiv- xeb txheej, nto electroplating, lossis kev tu ncua raws li lawv xav tau nrog hlau. Cov nplooj ntawv carbon fiber ntau tiv taus xeb thiab tsis yooj yim raug kev puas tsuaj vim kev ya raws lossis tshuaj lom neeg, ua rau lawv siv dav hauv thaj chaw xws li cov cuab yeej tshawb nrhiav dej hiav txwv, cov cuab yeej siv tshuaj, cov cuab yeej kho mob, thiab siab - cov chaw kuaj mob.
Los ntawm kev xav hauv kev lag luam, "ntev kev ua neej ntev thiab kev saib xyuas qis" cov yam ntxwv ntawm cov nplooj ntawv carbon fiber kuj tuaj yeem ua rau muaj txiaj ntsig ntau dua rau cov khoom lag luam. Thaum kawg cov neeg siv khoom pom tias lawv cov cuab yeej tuaj yeem tswj hwm kev ua haujlwm ruaj khov rau lub sijhawm ntev, txawm tias nyob rau hauv high humidity, high corrosion, los yog high zaus disinfection ib puag ncig, thiab txo cov nqi txij nkawm tom qab, tus nqi ntxiv coj los ntawm cov khoom nws tus kheej yuav ntxiv txhais rau hauv hom kev ntseeg siab thiab kev lag luam kev sib tw kom zoo dua.
Yuav ua li cas peb thiaj ua tiav daim ntawv thov loj - los ntawm kev ua kom zoo dua ntawm cov ntawv carbon fiber ntau?
Nrog kev nce qib txuas ntxiv ntawm kev tsim cov khoom siv sib xyaw ua ke, cov nplooj ntawv carbon fiber tau maj mam txav los ntawm qib siab -kawg daim ntawv thov mus rau loj- nplai kev lag luam. Txhawm rau ua tiav lub hom phiaj no, kev ua kom zoo tshaj plaws yog qhov tseem ceeb. Ntawm qhov tod tes, daim ntawv thov automated layup, kub nias, molding txheej txheem, thiab nruam ntau lawm technologies tuaj yeem txhim kho kev ua tau zoo, txo tib neeg kev ua yuam kev, thiab txo qis kev tsim khoom. Ntawm qhov tod tes, optimizing cov resin system, fiber ntau layup qauv, thiab curing tsis tuaj yeem tsis tsuas yog txhim kho cov khoom siv thiab kev ruaj ntseg ntawm cov ntaub ntawv carbon fiber, tab sis kuj txo cov khoom pov tseg thiab siv zog, yog li txo qis tag nrho cov nqi tsim khoom. Tsis tas li ntawd, kev qhia txog Kev Tsim Kho Kev Tsim Khoom (DFM) lub tswv yim thaum lub sij hawm tsim cov khoom lag luam tuaj yeem ua kom yooj yim rau kev ua cov txheej txheem, txhim kho kev siv cov khoom, thiab txhim kho batch ntau lawm sib xws. Nrog rau kev siv dav dav ntawm kev tsim khoom ntse thiab cov khoom siv tsis siv neeg, cov ntawv carbon fiber ntau yuav ua tiav cov ntawv loj dua - cov ntawv teev npe hauv thaj chaw xws li drones, tsheb teeb pom kev zoo, kev lag luam robots, cov cuab yeej kho mob, thiab lub zog tshiab.
Cov teeb meem kev lag luam thiab kev daws teeb meem
Q: Puas yog qhov brittleness ntawm cov ntawv carbon fiber ntau ua rau muaj kev pheej hmoo ntawm cov khoom tsis ua haujlwm nyob rau hauv siab - cuam tshuam ib puag ncig?
Txawm hais tias cov nplooj ntawv carbon fiber ntau yog cov khoom siv tawv tawv, tsis zoo li cov hlau uas nthuav tawm cov yas deformation tseem ceeb (yield) ua ntej tawg, niaj hnub engineering tau tsim ntau yam tswv yim los daws qhov kev sib tw no. Ua ntej, thaum lub sij hawm tsim cov khoom lag luam, cov khoom siv sib xyaw ua ke tuaj yeem siv los ua ke cov pa roj carbon fiber ntau nrog Kevlar lossis iav fiber, leveraging Kevlar lub siab tawv heev los txhim kho tag nrho cov qauv kev cuam tshuam thiab lub zog nqus tus nqi. Thib ob, siv cov tawv tawv epoxy resin ua lub matrix tuaj yeem ncua kev tawg tawm ntawm qib microscopic.
Tsis tas li ntawd, txhawm rau hais txog qhov muaj peev xwm tawg tawg, cov neeg tsim qauv tuaj yeem qhia "kev tsim kho tsis zoo." Los ntawm ntau- theem anisotropic kev npaj, nws tau ua kom ntseeg tau tias txawm tias cov fibers hauv zos tawg, cov khoom thauj tuaj yeem hloov mus rau cov txheej txheem fiber ntau los ntawm cov resin, tiv thaiv kev puas tsuaj tag nrho. Hauv kev siv tswv yim, xws li roob tsheb kauj vab thav duab lossis kev sib tw tsheb sib tsoo, cov kws tsim khoom siv cov qauv siv fiber ntau (xws li 3D weaving) los coj lub zog dissipation. Yog li ntawd, nrog rau kev tsim kom zoo, cov ntawv carbon fiber ntau muaj peev xwm tuav tau siab - cuam tshuam cov ntawv thov thaum txaus siab rau cov txiaj ntsig ntawm kev tsim kho.
Tiv tauj peb
Yog xav paub ntxiv txog yuav ua li cas peb cov qib siab -cov ntawv carbon fiber zoo tuaj yeem txhim kho koj cov haujlwm, thov hu rau peb ntawm sales18@julitech.cn. Cia peb pab koj cov haujlwm kom ncav cuag qhov siab tshiab nrog cov kev daws teeb meem carbon fiber ntau.
