Nrog kev txhim kho kev txuas ntxiv ntawm cov khoom siv sib xyaw, ntxiv rau cov iav fiber ntau ntxiv, boron fiber ntau-txhawb kom zoo nkauj, thiab lwm yam. Carbon Fiber Reinferund Polymer Composites (CFRP) yog cov khoom siv hluav taws xob thiab cov khoom siv muaj zog uas siv hauv peb lub neej txhua hnub. Nws yog ib lo lus siv los piav cov khoom siv fiber ntau ntxiv uas siv cov pa roj carbon fiber raws li cov qauv hluav taws xob tseem ceeb.
Cov lus ntawm cov ntsiab lus:
1. Carbon Fiber txhawb cov qauv polymer
2. Cov txheej txheem moulding ntawm carbon fiber cuam txhawb cov yas
3. Cov yam ntxwv ntawm Carbon Fiber Reinfermed Polymer
4. Qhov zoo ntawm CFRP
5. Qhov tsis zoo ntawm CFRP
6. Carbon Fiber ReinferCed Yas Siv
Carbon Fiber Reinferpred Polymer Cov Qauv
Carbon fiber ntxiv txhawb cov yas yog cov khoom tsim los ntawm kev npaj cov ntaub ntawv fiber ntau hauv cov kev taw qhia thiab siv cov ntaub ntawv polymer. Qhov txoj kab uas hla ntawm cov pa roj carbon fiber muaj qhov tsis tshua muaj nyias, li 7 microns, tab sis nws lub zog yog qhov siab heev.
Cov chav ua haujlwm yooj yim tshaj plaws ntawm Carbon Fiber txhawb cov khoom siv yog carbon fiber filament. Cov khoom siv yooj yim ntawm cov roj carbon filament yog prepolymer yog prepolymer polyacrylonitrile (lauj kaub), Rayon, lossis Petroleum suab. Cov pa roj carbon filaments yog tau ua rau cov roj carbon fiber los ntawm cov qauv tshuaj thiab cov tshuab siv rau carbon.
Txoj hlua khi polymer feem ntau yog cov thermosetting cob xws li epoxy. Lwm cov thermosets lossis thermoplastic polymers yog qee zaum siv, xws li polyvinyl acetate lossis nylon. Ntxiv rau cov pa roj carbon fiberers, composites kuj tseem tuaj yeem muaj aramid q, ultra-siab molecular hnyav polyethylene, txhuas, lossis iav fibers. Cov khoom ntawm cov khoom siv fiber ntau kuj tseem tuaj yeem cuam tshuam los ntawm hom additives tau qhia rau hauv kev sib raug zoo lev.
Cov txheej txheem moulding ntawm carbon fiber cuam txhawb cov yas
Cov roj carbon fiber ntau cov khoom muaj ntau txawv vim cov txheej txheem sib txawv. Muaj ntau txoj hauv kev rau kev sib sau cov fiber cov fiber ntau ntxiv txog cov khoom siv roj polymer.
1. Tes Tsho Coj Ua
Muab faib ua cov txheej txheem qhuav (ua ntej npaj khw) thiab cov txheej txheem ntub (fiber ntau npuag thiab cob cov khoom siv ua kom zoo nkauj siv). Tes Lay-up kuj tseem siv los npaj cov kev npaj cia rau kev siv hauv theem nrab molding txheej txheem xws li compression moulding. Txoj kev no yog cov ntawv ntawm cov ntaub fiber ntau cov pa roj carbon fiber ntau yog laminated rau pwm los ua cov khoom kawg. Lub zog thiab lub zog txhav ntawm cov khoom siv tau ua tau zoo los ntawm xaiv cov kev sib ncag thiab faus ntawm cov ntaub fibers. Lub pwm yog tom qab ntawd sau nrog epoxy thiab kho nrog tshav kub lossis huab cua. Txoj kev tsim qauv no feem ntau siv rau cov chaw tsis muaj kev ntxhov siab, xws li lub tshuab npog.
2. Nqus cov txheej txheem
Rau cov laminated prepreg, nws yog qhov tsim nyog yuav tsum tau thov siab los ntawm qee cov txheej txheem kom nws kho kom ze rau cov pwm thiab kho nws qhov kub thiab txias thiab siab. Lub hnab siv nqus lub nqus tsev siv lub tshuab nqus tsev kom khiav tawm hauv lub hnab thiab cov pwm tsis zoo rau cov khoom sib xyaw kom zoo rau pwm.
Ntawm lub hauv paus ntawm lub tshuab nqus hnab txoj kev, lub tshuab nqus tsev lub hnab-autoclave tsim qauv tau muab muab los tom qab. Autoclaves muab siab tshaj tawm thiab cua sov kho qhov (es tsis txhob kho ntuj cathing) ntau txoj kev nqus plua plav Xws li ib feem muaj cov qauv kev cog lus ntxiv, ua tau zoo dua cov cua npuas (cov npuas yuav cuam tshuam zoo rau lub zog ntawm ntu no), thiab cov khoom zoo tagnrho yog siab dua. Qhov tseeb, cov txheej txheem ntawm lub tshuab nqus tsev zoo ib yam li ntawd ntawm txawb xov tooj zaj duab xis khawm. Kev tshem tawm huab cua npuas yog ib txoj haujlwm tseem ceeb.
3. Kev moulding moulding
COMPRESSION MOADINGyog txoj kev moulding uas yog conducive rau huab hwm coj ntau lawm thiab loj ntau lawm. Pwm yog feem ntau yog ua los ntawm sab saud thiab qis dua, uas peb hu ua txiv neej pwm thiab tus poj niam pwm. Cov txheej txheem moulding yog muab tso rau ntawm kev npaj cia rau hauv lub tshuab hluav taws xob pwm, thiab lub siab, lub siab, thiab ua kom muaj cov pwm ua kom huv, thiab tom qab ntawd thiab kho kom tau txais cov khoom. Txawm li cas los xij, cov qauv no muaj tus nqi pib dua li cov dhau los, txij li thaum lub pwm yuav tsum tau siab heev-precision CNC machining.
4. Winding moulding
Rau qhov seem nrog cov duab nyuaj lossis hauv cov duab ntawm lub zog ntawm lub kiv puag ncig, ib qho falamly winder siv los ua kom ib feem ntawm winding cov lus ntawm mandrel lossis core. Tom qab winding yog ua tiav kev kho thiab tshem tawm cov mandrel. Piv txwv li, tubular txoj kev sib koom tes siv nyob rau hauv cov tshuab raug tshem tawm tuaj yeem ua siv hom no.
5. RESIN HLOOV MOLDING
Letin hloov moulding (RTM) yog ib txoj kev nrov nrov. Nws cov qib pib yog:
1. Muab cov khoom siv tsis zoo rau cov pwm thiab kaw pwm.
2. Txhaj kua rau cov kua thermosetting cob rau hauv nws, impregnate lub tswv yim siv, thiab kho.
Cov yam ntxwv ntawm carbon fiber ntau ntxiv rau polymer
(1) lub zog siab thiab elasticity.
Lub zog tshwj xeeb (uas yog, qhov sib piv ntawm tensile zog rau ntom) ntawm carbon fiber yog 6 lub sij hawm ntawm cov hlau thiab 17 zaug ntawm txhuas. Cov modulus tshwj xeeb (uas yog, qhov sib piv ntawm cov tub ntxhais hluas cov modulus kom ceev, uas yog lub cim ntawm ib qho khoom) yog ntau tshaj 3 zaug ntawm cov hlau lossis txhuas.
Nrog lub zog muaj lub zog siab, nws tuaj yeem ua haujlwm lub nra hnyav. Nws qhov siab tshaj plaws ua haujlwm siab tuaj yeem ncav cuag 350 kg / cm2. Tsis tas li ntawd, nws yog qhov sib xyaw ua ke ntau dua thiab rov ua dua li cov ntshiab f-4 thiab nws ntxias.
(2) Cov nkees ua tau zoo thiab hnav tsis kam.
Nws cov nkees tsis kam yog ntau dua li ntawm epoxy cob thiab siab dua li ntawm cov ntaub ntawv hlau. Graphite fibers yog tus kheej-lubricating thiab muaj me me coefficient ntawm kev sib txhuam. Tus nqi ntawm kev hnav yog 5-10 npaug me dua li ntawm cov khoom lag luam asbestos lossis F-4 braids.
(3) Kev ua haujlwm zoo thermal thiab cua sov kuj.
Carbon Fiber Reintered plastics muaj zoo thermal condality, thiab cov cua sov tsim los ntawm kev sib txhuam yog yooj yim dissipated. Lub sab hauv tsis yooj yim rau overheat thiab khaws cua sov thiab tuaj yeem siv ua cov khoom sib khi ua kom zoo nkauj. Hauv huab cua, nws tuaj yeem ua haujlwm ruaj khov hauv qhov ntsuas kub ntawm -120 ~ 350 ° C. Nrog rau kev txo qis ntawm alkali hlau cov ntsiab lus nyob rau hauv carbon fiber, qhov kev pabcuam kub yuav nce ntxiv. Nyob rau hauv cov roj inert, nws qhov ntsuas kub hloov tau txog 2000 ° C, thiab nws tuaj yeem tiv thaiv cov ntse hauv qhov txias thiab tshav kub.
(4) Kev vibration zoo.
Nws tsis yooj yim rau resonate lossis flutter, thiab nws kuj yog cov khoom zoo rau kev co kom txo qis thiab cov suab nrov txo.
Qhov zoo ntawm CFRP
1. Lub teeb yuag
Tsoos fiber ntau ntxiv rau cov ntaub pua plag uas siv cov iav txuas ntxiv thiab 70% iav fibers (qhov ntsuas iav / tag nrho muaj qhov ntom ntom ntawm 0.065 phaus ib qho cubic nti. Ib qho CFRP sib xyaw nrog tib 70% hnyav hnyav feem ntau muaj qhov ntom ntom ntawm 0.055 phaus ib qho cubic nti.
2. Lub Zog Loj
Txawm hais tias Carbon Fiber ntxiv cov polymers yog lub teeb ci ntsa iab, CFRP cov pa muaj zog dua thiab muaj zog dua thiab muaj zog dua li cov ntxig fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li iav fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li iav fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li cov composites fiber ntau dua li iav fiber ntau dua li cov composites fiber ntau. Piv nrog cov ntaub ntawv hlau, qhov kom zoo dua.
Qhov tsis zoo ntawm CFRP
1. Tus nqi siab
Kev tsim tus nqi ntawm carbon fiber txhawb koob yees siv txhawb nqa yas yog txwv tsis pub. Carbon fiber cov nqi yuav sib txawv raws nyob ntawm kev ua lag luam tam sim no (ib qho kev xav tau), cov hom carbon fs. kev lag luam qib), thiab qhov loj ntawm cov pob tawb. Ntawm ib phaus-rau-phaus-tawv, nkauj xwb carbon fiber muaj peev xwm yog 5 txog 25 zaug kim dua cov iav fiber ntau dua. Qhov sib txawv no txawm ntau dua thaum sib piv cov hlau rau CFRP.
2. Ua haujlwm
Qhov no yog qhov zoo dua thiab qhov tsis zoo ntawm cov roj carbon fiber ntau. Nws nyob ntawm daim ntawv thov. Cov pa roj carbon fibers yog cov khoom siv tau zoo thiab cov iav fiber yog insulating. Ntau cov khoom siv cov fiberglass hloov cov roj carbon fiber lossis hlau vim tias lawv yuav tsum tau rwb thaiv tsev. Nyob rau hauv kev tsim cov khoom siv, ntau cov khoom xav tau siv cov iav fibers.
Carbon Fiber ReinferCed Yas Siv
Cov kev siv ntawm carbon fiber ntau ntxiv rau polymer yog dav hauv lub neej, los ntawm cov khoom siv tshuab rau cov tub rog cov ntaub ntawv.
(1)Raws li Sealing Ntim
Carbon Fiber txhawb cov khoom siv PTFE tuaj yeem ua rau hauv corrosion-resistant, hnav-resistant, thiab high-kub-resistant sealing rings lossis packer. Thaum siv rau kev sib khi zoo li qub, lub neej pabcuam tau ntev dua, ntau dua 10 zaug ntev dua li cov roj av roj hluav taws xob. Nws tuaj yeem tswj cov kev ua tau zoo nyob hauv qab thauj cov kev hloov pauv thiab txias nrawm thiab cua sov sai. Thiab vim tias cov khoom siv tsis muaj cov tshuaj corrosive, tsis muaj pitting corrosion yuav tshwm sim ntawm cov hlau.
(2)Raws li kev sib tsoo
Siv nws tus kheej lubricating zog, nws tuaj yeem siv ua bearings, zog, thiab piston ib ncig rau cov hom phiaj tshwj xeeb. Xws li cov roj-dawb lubricated bearings rau cov twj ywm seev cev thiab cov xaim hluav taws xob, kom tsis txhob muaj cov roj ntsha los ntawm cov zaub mov thiab cov khoom lag luam tsis muaj txiaj ntsig ntawm nws cov yam ntxwv tsis muaj txiaj ntsig.
(3) raws li cov khoom siv rau iberospace, aviation, thiab cuaj luaj. Nws tau siv thawj zaug hauv cov dav hlau tsim los txo qhov hnyav ntawm lub dav hlau thiab txhim kho kev ya ua haujlwm. Nws tseem siv tshuaj lom neeg, roj av, hluav taws xob hluav taws xob, tshuab, thiab lwm yam kev lag luam ua cov ntaub ntawv sau lossis ntau yam zoo nkauj cov ntaub ntawv.
Zhengxi yog tus kws tshaj lijCov xovxwm hydraulic nyob hauv Suav teb, muab cov txiaj ntsig zoo-quliatyPuas Cov Xovxwm Hydraulicrau kev sib sau CFRP cov khoom.
Lub Sijhawm Post: Tsib Hlis-25-2023
