Lub ntiaj teb kev tsav tsheb mus rau kev siv hluav taws xob hauv kev thauj mus los thiab kev txhim kho kev ua haujlwm hauv aerospace ua rau muaj kev thov tsis txaus siab rau tiam tshiab ntawm cov ntaub ntawv ua tau zoo. Txij li xyoo 2025, cov polymers siab heev thiab cov khoom sib xyaw ua los ntawm fiber tau tsiv mus dhau lawv lub luag haujlwm ib txwm ua cov khoom siv zoo nkauj lossis cov khoom tsis yog cov qauv thiab tam sim no yog lub hauv paus ntawm cov kev hloov pauv engineering no. Hauv kev lag luam tsheb fais fab (EV) sib tw heev thiab kev lag luam aerospace uas tsav los ntawm qhov tseeb, cov yas sib dua, muaj zog siab, thiab ntau yam kev ua haujlwm no tsis yog lwm txoj hauv kev rau hlau xwb; lawv yog cov thev naus laus zis ua kom muaj peev xwm. Los ntawm kev muab kev ncaj ncees ntawm cov qauv mus rau kev tswj hwm qhov kub thiab txias heev thiab ua kom muaj kev nyab xeeb hluav taws xob siab, cov polymers siab heev tab tom daws cov teeb meem tseem ceeb tshaj plaws thiab txhais cov qauv kev ua tau zoo ntawm kev txav mus los niaj hnub no.

Qhov kev sib tw tseem ceeb hauv kev tsim tsheb EV thiab aerospace yog kev sib ntaus sib tua tiv thaiv qhov hnyav. Rau lub tsheb EV, txhua kilogram txuag tau ncaj qha txhais tau tias lub roj teeb muaj zog dua, qhov tseem ceeb rau kev lees txais ntawm cov neeg siv khoom. Rau lub dav hlau, qhov hnyav qis dua txhais tau tias kev siv roj tsawg dua thiab muaj peev xwm thauj khoom ntau dua. Txawm hais tias cov hlau xws li txhuas thiab titanium tau yog cov ntaub ntawv xaiv, lawv tab tom mus txog qhov txwv ntawm lawv lub peev xwm ua kom lub cev sib dua thiab feem ntau tuaj nrog kev ua tiav nyuaj thiab cov nqi siab. Qhov no tau tsim lub sijhawm loj rau cov khoom sib xyaw polymer los nqis tes ua, muab qhov sib npaug lossis txawm tias zoo dua lub zog thiab kev tawv ntawm ib feem ntawm qhov ceev.

Tab sis lub luag haujlwm ntawm cov yas niaj hnub no nthuav dav tshaj qhov yooj yim txo qhov hnyav. Hauv cov ntsiab lus ntawm EVs, lawv yog qhov tseem ceeb rau kev tswj hwm thermal ntawm cov roj teeb, hluav taws xob rwb thaiv tsev ntawm cov kab ke high-voltage, thiab kev koom ua ke ntawm cov khoom siv hluav taws xob nyuaj. Hauv aerospace, lawv muab kev tiv thaiv kev qaug zog zoo heev, tsim kev ywj pheej rau cov duab aerodynamic nyuaj, thiab kev tiv thaiv corrosion. Qhov ntau yam kev ua haujlwm no yog qhov twg polymers tiag tiag ua tau zoo, tso cai rau cov engineers los sib sau ua ke cov khoom, txo qhov nyuaj sib dhos, thiab tsim cov tsheb ntse dua, ua haujlwm tau zoo dua.

Lub Tsheb Hluav Taws Xob: Ib Qho Kev Qhia Txog Kev Tsim Kho Polymer

Lub tsheb fais fab niaj hnub no yog ib qho pov thawj ntawm qhov ua tau ntau yam thiab tsis tseem ceeb ntawm cov yas siab heev. Lawv cov kev siv dav dav thoob plaws lub tsheb, txij li lub roj teeb mus rau lub chassis thiab lub zog.

1. Lub Rooj Sib Tham Txog Lub Roj Teeb: Lub Tsev Ruaj Ntseg ntawm Cov Polymers:Lub roj teeb yog lub plawv ntawm lub tsheb EV, thiab nws lub thawv yog ib qho ntawm cov ntawv thov uas xav tau tshaj plaws rau txhua yam khoom siv. Nws yuav tsum muaj cov qauv ruaj khov kom tiv thaiv cov cell ntawm kev cuam tshuam, kaw tag nrho, tiv thaiv hluav taws thaum muaj cua sov khiav tawm, thiab tswj kev cuam tshuam hluav taws xob (EMI). Txawm hais tias cov qauv tsim thaum ntxov feem ntau siv txhuas, cov khoom sib xyaw ua los ntawm cov fiber ntau tau sai sai los ua qhov kev daws teeb meem xaiv. Cov thermosets thiab thermoplastics uas muaj iav-fiber thiab carbon-fiber tuaj yeem pwm ua cov qauv nyuaj, ib daim uas sib dua li 30-40% dua li lawv cov hlau sib piv. Cov khoom sib xyaw no muaj kev ruaj khov zoo heev thiab tiv thaiv kev cuam tshuam. Qhov tseem ceeb, lawv tuaj yeem tsim nrog cov khoom ntxiv tshwj xeeb kom ua tau raws li cov qauv UL 94 V-0 hluav taws kub thiab tuaj yeem muaj cov khoom siv hluav taws xob sib xyaw ua ke los muab kev tiv thaiv EMI, sib sau ua ke ntau yam haujlwm rau hauv ib qho pwm.

2. Cov Tshuab Hluav Taws Xob Siab: Kev Nyab Xeeb ntawm Kev Rwb Thaiv Hluav Taws Xob:Cov tsheb fais fab (EVs) ua haujlwm ntawm qhov hluav taws xob ntawm 400V, 800V, lossis siab dua, tsim kom muaj qhov xav tau tseem ceeb rau kev rwb thaiv hluav taws xob zoo dua kom ntseeg tau tias muaj kev nyab xeeb. Qhov no yog thaj chaw uas cov yas yog qhov zoo dua li cov hlau. Cov yas engineering ua tau zoo xws li Polyamide (PA), Polybutylene Terephthalate (PBT), thiab Polyphenylene Sulfide (PPS) yog siv los tsim ntau yam khoom siv hluav taws xob siab, suav nrog cov connectors, busbars, thiab cov chaw faib hluav taws xob. Cov ntaub ntawv no raug xaiv raws li lawv qhov Comparative Tracking Index (CTI) siab, uas yog qhov ntsuas ntawm lawv qhov kev tiv thaiv rau kev tawg hluav taws xob. Cov xim txiv kab ntxwv ci ntsa iab ntawm cov khoom no, uas tau teev tseg los ntawm cov qauv kev nyab xeeb, tau dhau los ua lub cim pom ntawm EV powertrain technology, txhua yam ua tiav los ntawm cov khoom rwb thaiv tsev txhim khu kev qha ntawm polymers.

3. Kev Tswj Kub: Ua kom txias thaum muaj kev kub ntxhov:Kev tswj cov cua sov uas lub roj teeb tsim tawm thaum lub sijhawm them ceev thiab tso tawm cov zis siab yog qhov tseem ceeb rau nws txoj kev ua tau zoo thiab lub neej ntev. Cov yas ua lub luag haujlwm tseem ceeb hauv kev tsim cov txheej txheem tswj cua sov zoo heev. Cov polymers uas ua rau muaj cua sov, uas muaj cov khoom siv xws li boron nitride lossis graphite, raug siv los tsim cov phaj txias, cov dab dej kub, thiab cov tsev rau cov khoom siv hluav taws xob rhiab heev. Cov ntaub ntawv no tuaj yeem raug txhaj tshuaj pwm rau hauv cov qauv geometries nyuaj heev, ua rau muaj cov kav dej txias uas yuav tsis yooj yim sua lossis kim heev los tsim nrog hlau extrusion lossis casting. Qhov no ua rau muaj kev ua haujlwm zoo dua thiab sib npaug ntawm cov cua sov, uas yog qhov tseem ceeb hauv kev ua kom muaj peev xwm them ceev ceev.

Kev Ua Haujlwm Huab Cua: Thawb Cov Kev Txwv ntawm Kev Ua Tau Zoo thiab Kev Ua Haujlwm Zoo

Hauv kev lag luam aerospace, qhov twg txhua gram raug tshuaj xyuas thiab cov qauv kev ua tau zoo yog qhov tseeb, cov polymer composites tau yog lub zog hloov pauv tau ntau xyoo, thiab lawv lub luag haujlwm txuas ntxiv nthuav dav.

Cov qauv dav hlau ntawm cov dav hlau lag luam niaj hnub xws li Boeing 787 Dreamliner thiab Airbus A350 yog cov piv txwv zoo. Ntau tshaj 50% ntawm lawv qhov hnyav yog ua los ntawm cov yas carbon-fiber reinforced (CFRP). Cov ntaub ntawv no yog siv los tsim cov fuselage, tis, thiab ntu tail. Cov txiaj ntsig yog qhov tob heev: txo qhov hnyav tag nrho, ua rau muaj kev txhim kho roj 20-25% piv rau cov dav hlau txhuas yav dhau los. Ntxiv mus, CFRPs tsis xeb, uas txo cov kev xav tau kev saib xyuas mus sij hawm ntev. Lawv kuj muaj kev tiv thaiv kev nkees zoo dua, ua rau muaj kev ntxhov siab thiab av noo ntau dua, uas txhais tau tias muaj kev paub zoo dua rau cov neeg caij tsheb.

Cov txheej txheem tsim khoom rau cov qauv sib xyaw loj no kuj tseem hloov zuj zus. Cov neeg hlau Automated Fiber Placement (AFP) thiab Automated Tape Laying (ATL) tam sim no tuaj yeem tso cov khoom sib xyaw nrog qhov ceev thiab qhov tseeb, ua rau kev tsim cov qauv loj, monolithic ua tau.

Tshaj li ntawm lub dav hlau, sab hauv ntawm lub dav hlau yuav luag tag nrho yog ua los ntawm cov polymers ua tau zoo uas yuav tsum ua tau raws li cov cai ntawm nplaim taws, pa luam yeeb, thiab tshuaj lom (FST). Cov ntaub ntawv xws li PEI (Polyetherimide, piv txwv li, ULTEM) thiab cov qib ua tau zoo ntawm polycarbonate yog siv rau cov khoom zaum, cov thawv saum taub hau, thiab cov vaj huam sib luag ntawm phab ntsa. Cov ntaub ntawv no muab cov khoom sib xyaw ua ke nrog kev nyab xeeb hluav taws thiab kev ruaj khov, txhua yam tseem ceeb rau ib puag ncig kev tsav dav hlau.

Kev Tsim Khoom Hauv Zej Zog: Txuas Qhov Sib Txawv Ntawm Kev Ua Tau Zoo Thiab Kev Tsim Khoom

Qhov teeb meem tseem ceeb rau cov khoom sib xyaw ua ke tau keeb kwm yog qhov ceev thiab tus nqi ntawm kev tsim khoom. Txawm li cas los xij, cov kev hloov pauv tseem ceeb tau txuas qhov sib txawv no. Kev tsim cov thermoplastics ua tau zoo, piv rau cov thermosets ib txwm muaj, yog qhov tseem ceeb. Thermoplastics tuaj yeem ua tiav sai dua siv cov txheej txheem xws li kev txhaj tshuaj overmolding thiab compression molding, thiab lawv muab cov txiaj ntsig ntxiv ntawm kev rov ua dua tshiab. Qhov no ua rau lawv nyiam dua rau cov ntawv thov tsheb ntau.

Cov txheej txheem xws li kev txhaj tshuaj ntau yam khoom, uas tuaj yeem sib xyaw ua ke cov qauv sib xyaw nrog cov thermoplastic elastomer (TPE) mos mos thiab yoog tau hauv ib qho, ua rau muaj kev sib koom ua ke zoo tshaj plaws. Ib qho khoom pwm tam sim no tuaj yeem muab kev txhawb nqa cov qauv, lub gasket kaw, thiab qhov chaw kov mos mos, txo qis qhov suav ntawm cov khoom, qhov hnyav, thiab lub sijhawm sib dhos.

Xaus lus, cov polymers thiab cov khoom sib xyaw ua ke yog cov cav uas ntsiag to uas tsav lub neej yav tom ntej ntawm kev txav mus los. Lawv lub peev xwm tshwj xeeb los muab kev sib xyaw ua ke ntawm qhov hnyav tsawg, lub zog siab, kev tswj hwm thermal, kev rwb thaiv hluav taws xob, thiab kev ywj pheej tsim ua rau lawv yog cov cuab yeej tseem ceeb rau cov engineers hauv EV thiab aerospace sectors. Raws li cov ntaub ntawv tshawb fawb thiab cov txheej txheem ua tiav txuas ntxiv mus, lub luag haujlwm ntawm cov chaw muaj zog polymer no tsuas yog nthuav dav, ua rau cov tsheb sib dua, muaj kev nyab xeeb dua, thiab ua haujlwm tau zoo dua rau thaj av thiab saum ntuj.