Tsis ntev tas los no, cov thooj ntawv thermoplastic muaj qhov tseem ceeb tshaj plaws uas tsawg tau pom. Gulfstream Aerospace (Savannah, GA, Tebchaws USA) tau xa tus 300th Gulfstream 650. Pib xyoo 2012, qhov chaw ua haujlwm twv txiaj ua cav no yog thawj zaug kev lag luam siv siv ib qho tseem ceeb ntawm cov thermoplastic composites.
Tau ntau xyoo, Airbus (Toulouse, Fabkis) tau siv cov thermoplastic composites nyob rau hauv lub forefront ntawm nws A300 tsev neeg ntawm aircraft, tab sis cov no tsis yog qhov tseem ceeb tswj cov hniav. Yog hais tias tus ntug kev ntog tawm lub dav hlau, ces lub dav hlau tseem tsis muaj teeb meem thiab txhua tus neeg muaj kev ruaj ntseg. Yog tias qhov tseem ceeb ntawm qhov tswj tsis tau, qhov ua rau muaj kev puas tsuaj loj yuav ua rau muaj kev cuam tshuam.
Cov thermoplastic composites tsis tau muab coj los siv rau hauv cov khoom tseem ceeb lossis loj yam ntxwv hauv aircraft ntau xyoo. Muaj ob peb lub hauv paus rau qhov no. Ua ntej tshaj plaws, thermoset plastics yog nyob rau hauv qhov zoo tsam ntawm ntau tus neeg - lawv structurally ruaj khov thiab muaj lub davhlau tso cai database rau ntau tshaj 40 xyoo. Daim ntawv thov kev txuas hluav taws xob nruam yog yuav luag tag nrho cov thermoset cob cog. Cov tuam txhab loj tshaj plaws siv autoclaves (tam sim no OOA ncu) thiab lwm cov khoom siv thermoset uas tau tsav cov khoom siv. Ntxiv rau databases thiab cov khoom cuab yeej siv rau cov thermosets, feem ntau cov engineers puas nyob hauv cov thermoset cov chaw siab nyob thoob plaws lawv cov haujlwm. Lawv tsim los yog kho tau tus txheej txheem nyob ib ncig ntawm tsawg tsawg ntawm kev npaj tau davhlau ntawv npaj ua ntej. Cov kws cob qhia cov neeg ua haujlwm yog cov xiam oob khab tshwj xeeb raws li tsevneeg lossis lwm yam kev siv thermoset. Cov neeg muas zaub tsuas xav siv thermoset plastics vim lawv tsis paub txog "kab txawv" cov khoom hu ua thermoplastics.
Nyob rau hauv ib qho kev tsis haum hauv zej zog, qhov kev xav tau no yog qhov tseem ceeb rau txoj kev kawm qeeb hauv kev lag luam aerospace hauv kev siv cov txiaj ntsig ntawm cov thermoplastics. Txawm tias thaum porosity ntawm lub thermoplastic prepreg tsawg tshaj li 0.5%, qee yam uas zoo li qub, thiab AFP qhov chaw ua los ntawm prepreg muaj cov porosity zoo ib yam, qee cov tib neeg tseem xav tso qhov kawg qhov hauv lub autoclave kom paub meej Consolidation. Oops, txawm ib co engineers uas zoo txaus hauv cov thermoplastic composites nyiam kom muaj kev ruaj ntseg ntawm kev koom ua ke los ntawm autoclaves. Yog tias ib qho thermoplastic muaj nyob hauv qhov chaw khaws ntaub ntawv, nws yuav yog autoclave-consolidated PEEK. Thaum koj ua li no, koj poob qhov zoo ntawm cov thermoplastics.
Rov qab mus rau G650. Theem of the elevator thiab ntsug ntawm txoj kev ua yog ua los ntawm carbon fiber / PPS composite thiab ces dhos los ntawm kev siv cov khoom siv FAA uas siv pov thawj. Kab lus no piav qhia txog peb lub caij nyoog uas muaj feem xyuam nrog cov khoom no. Ua ntej, cov elevators thiab cov rudders tseem ceeb heev rau kev tswj kev tswj cov aircraft, thiab FAA yuav tsis lees paub lawv yog tias tsis muaj cov ntaub ntawv pov thawj ntau. Qhov thib ob, kev siv PPS (tsis polyketones) hauv qhov tseem ceeb yog yuav luag tsis paub thaum tsim cov qauv no. Tau kawg, PPS tau siv rau cov ntug kev, tab sis lub iav hloov kub (Tg) ntawm lub pob zeb tsuas yog 90 ° C. Nyob rau lub caij ntuj sov kub nyob rau hauv Mojave Desert, ntawm cov dav hlau nyob ze ntawm lub tshuab pa, ib tus tuaj yeem txiav txim siab tias cov khoom siv kub kub yuav raug xwm txheej nyob ze rau 90 ° C.
Qhov zoo ces, PPS (thiab polyketones) yog semi-crystalline polymers. Cov qauv saw hauv cov polymer ua rau lawv tuav lawv lub zog loj thiab lawv txoj siab nyob saum lawv lub Tg. Conversely, thaum ib cov khoom thermosetting xws li ib qho tshuaj epoxy yog raug kub siab tshaj nws cov Tg, nws decomposes. Qhov tseeb tiag, PPS tau siv ntau lub xyoos hauv kev siv tsheb los ntawm kev tsav tsheb ntau dua 140 ° C. Ib tug engineer composite laus dua (xws li kuv) yuav muaj lub sijhawm nyuaj xaiv xaiv cov khoom matrix uas yuav yog siab dua nws cov Tg. Tab sis qee cov tub ntxhais hluas thiab cov neeg kawm txog kev lag luam uas tsis paub zoo ua nws ua haujlwm, uas yog ib qho tseem ceeb heev.
Tam sim no yog qhov thib peb milestone. Ib qho zoo ntawm cov thermoplastics yog tias lawv muaj peev xwm yuav welded, tshem tawm qhov xav tau kev sib txuas thiab kev sib tw thiab cov nqi thiab nyhav txog cov teeb meem no. Rau FAA-ntawv pov thawj welds, cov thooj tshuaj thermoplastic tseem ceeb yuav tsum muab pov thawj kom ua tiav cov lus qhia txhua zaus. KVE Composites Group (Lub Hague, Lub Netherlands) siv TenCate Advanced Composites los tsim cov txheej txheem welding (Nijverdal, Netherlands) CETEX laminate prepreg rau qhov chaw tsim khoom Fokker Technologies (Lub Hague, Lub Netherlands). (Kwv yees qhov twg? Yog, cov neeg nyob rau ntawm lub koob thib ob ntawm A300 series.) Nws txaus yog FAA ntawv pov thawj. (Ua ib daim ntawv me me, txhua tus kws kho cov thermoplastic yuav tsum ua Vajtswv tsaug rau cov Dutch, tab sis qhov no yog lwm hnub lub ntsiab lus.)
Yog li ntawd, txawm hais tias Gulfstream lub ntsiab kev ua milestones tau tsim tawm ntau tshaj li tsib lub xyoos dhau los, vim li cas yog qhov kev lag luam aerospace composites tseem ua haujlwm hauv thaj chaw thermoset? Ib qho yog vim li cas txoj kev kawm ntawv: Ob peb xyoos dhau los kuv koom nrog ib lub rooj sib tham nrog SAMPE nrog ib tug xib fwb hauv ib lub tsev kawm ntawv hauv Teb Chaws Asmeskas, thiab qhov kev qhia ntawv hauv tsev kawm ntawv yog qhov hnyav. Ib qho ntawm nws cov slides teev tias qhov tseem ceeb ntawm cov phom sij ntawm cov thermoplastic composites tsis tau siv ntau lawm. Thaum nws yog kuv tig, Kuv pom Gulfstream ntawm tus swb thiab pom tau hais tias kuv tau poob ib tug phooj ywg kev kawm. Nws tsis paub txhua. Yog hais tias nws yog los ntawm ib tug European university, nws yuav paub.
Qhov thev fais fab thev fais fab hauv Teb Chaws Asmeskas tsis yog vim tsis paub, tab sis vim tias lawv tsis nyob rau hauv qhov kev thaj chaw. Nyob rau xyoo 1980s, cov thermoplastic composites tau tshaj tawm txog kev siv tub rog, thiab thaum lawv ua tsis tiav, feem ntau cov technologies pib nkag thaum lawv thawj zaug, lawv tau ua phem tiag tiag. Txoj kev loj hlob thermoplastic composites nyob hauv United States tau raug txo. Tsis tas li ntawd, Airbus thiab Dutch lub tuam txhab tau siv ntau txoj hauv kev tsim cov thermoplastic composites thiab pib siv ntau cov ntaub ntawv thaum ntxov raws li Airbus A320. Los ntawm txoj kev, Fokker tus tw nkoj tam sim no zoo ib yam li tus tw nkoj uas tau raug muab tso rau hauv ntau lawm rau ntau lub nkoj Gulfstream.
Qhov twg yog qhov thermoplastic tom ntej no? Vim thermoplastic prepreg tapes pab kom tag nrho automation ntawm txoj kev nrhiav, kev ua tau zoo dua thiab kev txig tag nrho (txawm tias tsis yog txhua tus kuv ntseeg tias tau ntseeg qhov no) thiab txo cov nqi, lawv yog cov mus kom ze. Tsis ntev tas los no kuv tau hnov hais tias cov kws paub txog kev lag luam hais tias cov fuse lub cev ua los ntawm cov thermoplastic composites nrog cov tshuab fiber ntau yuav tsum yog autoclaved los xyuas kom meej tiav. Qhov kev saib tsis pom ob lub ntsiab lus tseem ceeb. Ua ntej, qee cov cim thermoplastic qis muaj porosity tsawg heev (<0.5%, hauv="" teb="" chaws="" asmeskas)="" thiab="" tsuas="" yuav="" zoo="" dua="" thiab="" zoo=""> Thib ob, saib ntawm cov kev txhawb zog tshiab tsis ntev los no hauv automation ntawm kev txawj ntse kev txawj ntse, qhov tseeb ntawm kev tswj cov txheej txheem ntawm AFP yog qhov tseeb tiag tiag thiab zoo heev. Vim li cas Toray ua li no (Boeing lub ntsiab thermoset prepreg lub chaw muag khoom) tso nyiaj ntau dua $ 1 nphom hauv thermoplastics specialist TenCate Advanced Composites (Morgan Hill, Calif.)? Kuv twv? Tag kis lub fuselage thiab / lossis tshiab midsize aircraft yuav tsum yog ntawm thermoplastic composites thiab yuav ua kom tiav nyob rau hauv 2025.
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XIAMEN LFT COMPOSITE YAS CO., LTD.
Focus on (LFT-G, LFRT) R & D thiab ntau lawm: PA, PP, TPU, PPS, PBT, PPA, PEI, PEEK ntev iav fiber ntau & carbon fiber txuas ntxiv infiltration thermoplastic composite reinforcement series engineering plastics.Nws siv tau rau hauv aerospace, tsheb, khoom siv kho mob, khoom siv ua kis las, khoom siv hauv vaj hauv tsev thiab lwm yam khoom sib luag thiab nqi hluav taws xob uas yuav tsum tau muaj kev lag luam zoo.
Yog tias koj xav tau cov ntaub ntawv ntxiv, thov hu rau kuv.
Mike Lee
Email: sale02@lfrtplastic.com
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