carbon fiber structural reinforcement
Pob zeb yog cov khoom siv siv ntau tshaj plaws hauv lub ntiaj teb vim nws cov nqi-zoo, ntau cov ntaub ntawv raw, yooj yim tsim, thiab zoo heev lub cev thiab txhua yam khoom.
Txawm li cas los xij, pob zeb tseem muaj kev txwv, uas yuav cuam tshuam rau nws cov kav ntev thiab kev pabcuam lub neej. Feem ntau vim nws tsis tshua muaj flexural thiab tensile lub zog, nrog rau brittleness, cov qauv yuav ua tsis tau yam tsis muaj ceeb toom nyob rau hauv tensile thiab shear tej yam kev mob.
Yog li ntawd, structural pob zeb feem ntau xav tau kev txhawb zog los txhim kho cov txheej txheem kev ncaj ncees ntawm cov tsev. Txawm hais tias steel fiber yog lub ntsiab lus txhawb zog siv thoob ntiaj teb, kuj tseem muaj qee qhov teeb meem nrog nws siv, feem ntau ntawm nws txoj kev ua haujlwm ntev thiab kev ruaj khov.
Vim li cas thiaj siv carbon fiber?
Nyob rau hauv xyoo tas los no, kev siv cov pa roj carbon fiber ntau hauv kev tsim kho kev lag luam tau nce zuj zus, feem ntau yog siv rau cov ntaub thaiv phab ntsa, cov phab ntsa muab faib, thiab cov phab ntsa. Carbon fiber reinforced pob zeb (CFRC) yog thawj zaug siv los ua cov khoom siv hauv tsev hauv xyoo 1970s thiab tau raug pov thawj tias muaj qee yam khoom tsim nyog.
Kev tshawb fawb thaum ntxov ntawm CFRC ua los ntawm PAN fibers tau txhim kho qhov cuam tshuam lub zog, tensile lub zog, thiab elastic modulus ntawm pob zeb. Hauv 1980, daim ntawv tshaj tawm tshawb fawb txog kev siv asphalt carbon fiber hauv Nyij Pooj tau hais tias kev txhim kho tseem ceeb tau ua tiav los ntawm kev siv tsuas yog 0.2% ntawm qhov ntim ntawm carbon fiber.
Kev tshawb fawb ntxiv tau lees paub tias txawm tias ntxiv me me ntawm carbon fiber ntau tuaj yeem txhim kho cov khoom siv dag zog ntawm cov pob zeb, nrog cov roj carbon fiber ua tau zoo dua cov hlau lossis iav fiber ntau. Qhov no yog vim nws zoo heev durability, kub tsis kam, huab cua tsis kam, thiab processability nyob rau hauv hnyav tej yam kev mob.
Txawm li cas los xij, ib qho teeb meem ntawm carbon fiber yog nws cov nqi. Txog tam sim no, qhov no tau cuam tshuam nws daim ntawv thov loj hauv cov khoom siv, tab sis cov kws tshawb fawb ntseeg tias tus nqi pib ntawm carbon fiber yog tsim nyog nws piv rau tus nqi ntawm kev rov qab kho cov qauv puas nrog cov tsoos steel fiber ntau pob zeb.
Cov pa roj carbon fibers muaj ntau dua 92 wt% carbon txheej txheem hauv cov qauv siv lead ua sib npaug rau cov fiber ntau qhov ntev. Raws li cov txheej txheem tsim khoom, cov qauv tuaj yeem ua amorphous, ib nrab crystalline, lossis tag nrho crystalline, thiab tuaj yeem muaj nyob rau hauv daim ntawv luv lossis ntev fibers.
Cov pa roj carbon fiber yog cais raws li cov khoom siv ua haujlwm siab vim nws cov yam ntxwv tseem ceeb. Cov yam ntxwv no muaj xws li tsis tshua muaj lub ntiajteb txawj nqus, muaj peev xwm tiv taus kev ntxhov siab nyob rau hauv dynamic thiab quasi-static load, siab thermal conductivity, zoo heev creep kuj, siab elastic modulus, tsis corrosiveness, thiab tshuaj stability.
Tsis tas li ntawd, carbon fiber muaj cov khoom zoo nkauj zoo nkauj thiab zoo nkauj rau cov haujlwm uas xav tau cov khoom tiav zoo.Txawm li cas los xij, carbon fiber kuj muaj qee qhov kev txwv uas yuav cuam tshuam nws txoj kev siv.
Fibers yog nquag oxidation nyob rau hauv cua sov los yog alkaline tej yam kev mob. Tsis tas li ntawd, fibers kuj muaj qhov tsis zoo xws li axial thiab transverse anisotropy thiab tsis tshua muaj pob txha strain. Qhov teeb meem tseem ceeb ntawm kev siv CFRC yog qhov tsis zoo ntawm cov pa roj carbon fiber ntau, uas yog qis dua lwm yam xws li iav, Kevlar, thiab SiO2.
TDS ntawm carbon fiber structural reinforcement (12K thiab 24K)
Txoj kev siv zog tshwj xeeb
Muaj ntau txoj hauv kev siv cov cuab yeej siv tam sim no, xws li kev txhim kho txoj kev hla ntu, qhwv steel qhov cuab lub zog, kev sib txuas steel hlau, txoj kev carbon fiber reinforcement, thiab lwm yam. Carbon fiber reinforcement thiab kho cov qauv siv tshuab yog lwm yam tshiab ntawm cov qauv kev txhim kho. thev naus laus zis tom qab nce cov pob zeb ua ntu thiab sib txuas cov hlau.
Scope ntawm daim ntawv thov
Cov txheej txheem carbon fiber reinforcement yuav siv tau rau flexural thiab shear reinforcement ntawm cov pob zeb, thiab yog dav siv rau seismic, tawg, thiab anti-corrosion reinforcement ntawm ntau yam industrial thiab civil vaj tse thiab cov qauv. Txhim kho cov kab teeb, kab, thiab vaj huam sib luag hauv cov vaj tse pob zeb, txuas hniav, thiab cov tsev. Txhim kho qhov tunnels, chaw nres nkoj, chimneys, warehouses, thiab factories. Kev tiv thaiv thiab ntxiv dag zog ntawm cov pob zeb, txuas hniav, thiab cov qauv dej uas puas los ntawm ntsev.
Txheej txheem txheej txheem
Ua ntej impregnating carbon fibers nrog lub zog tensile siab rau hauv cov khoom siv ntxiv (unidirectional nruam fibers) siv epoxy resin; Siv epoxy resin nplaum nplaum los lo rau ntawm tensile kev taw qhia los yog perpendicular mus rau lub tawg kev taw qhia ntawm tus qauv yuav tsum tau ntxiv dag zog, tsim ib tug tshiab composite, thiaj li hais tias cov reinforced nplaum cov ntaub ntawv thiab cov thawj reinforced pob zeb yog sib koom ua ke kom muaj kev sib tsoo los yog shear kuj. ntawm cov qauv, thiab txhim kho lub zog, nruj, tawg tsis kam, thiab elongation ntawm cov qauv.
txheej txheem technology
Kev npaj kev tsim kho → Kev kho pob zeb → Siv cov primer → kho qhov puas ntawm cov khoom → Muab cov pa roj carbon fiber ntau → Kev kho deg → Leveling khoom npaj → hauv qab txheej los yog resin npaj → Impregnation resin npaj
Cov ntsiab lus ua haujlwm
1, Kev kho pob zeb nto
1. Ntxuav cov khoom puas thiab tawg ntawm qhov chaw ntawm cov pob zeb ua ke.
2. Kho thiab kho qhov puas ntawm cov khoom uas tau raug chiseled, ntxuav, thiab raug.
3. Kev kho qhov tawg: Rau cov kab nrib pleb uas muaj qhov dav tsawg dua 0.2 hli, siv epoxy resin rau txheej txheej thiab sealing; Cov kab nrib pleb loj dua 0.2 hli yuav tsum tau ntim nrog epoxy resin.
4. Polishing: Polish lub protruding qhov chaw ntawm cov khoom nto (xws li kev sib tshuam ntawm cov pob zeb ua vaj tse thiab cov pob qij txha ntawm formwork) tiaj tus, thiab ua kom cov khoom kho qhov chaw du raws li qhov ua tau.
5. Ntxuav thiab txhuam qhov saum npoo ntawm cov khoom, thiab cia lawv qhuav kom huv si.
2, Siv primer rau qhov chaw puas
Siv lub hauv paus nplaum nplaum (tus neeg sawv cev sib txuas) sib npaug mus rau qhov chaw ntawm qhov chaw tsis zoo ntawm cov pob zeb.
3, Kho qhov chaw tsis xws luag ntawm cov khoom
Kev siv cov epoxy putty rau kev kho qhov chaw puas ntawm cov khoom yog ib kauj ruam tseem ceeb, nrog rau cov ntsiab lus tseem ceeb hauv qab no:
1. Ua tib zoo ntsuas tus neeg sawv cev tseem ceeb ntawm putty, curing accelerator, thiab curing agent raws li qhov piv txwv, muab tso rau hauv ib lub thawv, thiab do tusyees nrog ib tug tov khoom.
2. Sau cov concave qhov chaw ntawm qhov chaw ntawm cov khoom siv nrog epoxy putty thiab kho lawv mus rau qhov chaw du. Thaum siv epoxy putty hauv kev kho tsis tiav, kev tsim kho yuav tsum tau ua nyob rau hauv cov xwm txheej uas qhov kub siab tshaj -5 degree thiab qhov txheeb ze av noo tsawg dua 85%. Tom qab siv cov putty, tej yam tsis sib xws los yog roughness uas tseem muaj nyob rau saum npoo yuav tsum tau smoothed nrog sandpaper.
4, siv primer
Siv cov nplaum uas npaj tau (tus neeg sawv cev sib txuas) sib npaug mus rau qhov chaw ntawm cov pob zeb kom sib txuas nrog cov menyuam.
5, Muab cov pa roj carbon fiber ntau
Ua ntej pasting cov ntaub ntawv carbon fiber, nws yog ib qho tsim nyog yuav tsum xub paub meej tias qhov chaw pasting yog qhuav. Thaum qhov kub siab tshaj -10 degree thiab qhov txheeb ze av noo RH siab dua 85%, kev tsim kho yuav tsum tsis txhob ua yam tsis muaj kev ntsuas zoo. Txhawm rau tiv thaiv kev puas tsuaj rau cov pa roj carbon fiber ntau thaum thauj, khaws cia, txiav, thiab pasting cov ntaub ntawv carbon fiber. Txiav cov khoom siv roj carbon fiber ntau nrog cov kav hlau thiab cov ntawv ntsa riam raws li qhov loj me, thiab qhov ntev ntawm txhua ntu yuav tsum tsis pub tshaj 6m. Txhawm rau tiv thaiv kev puas tsuaj rau cov ntaub ntawv thaum lub sijhawm khaws cia, txiav kom muaj nuj nqis ntawm cov ntaub ntawv yuav tsum tau ua raws li kev siv txhua hnub. Lub longitudinal pob qij txha ntawm carbon fiber yuav tsum sib tshooj ntau tshaj 20cm. Qhov chaw no yuav tsum tau coated nrog ntau resin, thiab carbon fiber tsis tas yuav tsum tau overlapped kab rov tav.
Cov ntsiab lus tseem ceeb ntawm nws txoj kev tsim kho yog raws li hauv qab no:
1. Tus neeg sawv cev tseem ceeb, tus neeg sawv cev kho kom zoo, thiab tus neeg sawv cev kho rau cov khoom siv pasting yuav tsum raug ntsuas kom raug raws li qhov qhia tau hais tseg, ntim rau hauv lub thawv, thiab sib tov sib npaug nrog lub tov khoom. Tus nqi pib sib xyaw yuav tsum tau siv nyob rau hauv lub sijhawm siv tau.
2. Thaum pasting, sim kom tsis txhob muaj cua ntawm cov pa roj carbon fiber ntau thiab resin. Siv cov menyuam yaus (tshwj xeeb cov cuab yeej) los yob cov khoom siv carbon fiber ntau raws li cov kev taw qhia fiber ntau ntau zaus, cia cov resin nkag mus rau hauv cov pa roj carbon fiber ntau.
6, Kev Kho
Tom qab muab cov khoom siv carbon fiber ntau dhau lawm, nws yuav tsum tau kho kom zoo li qub rau 1-2 teev kom ua tiav kev kho thawj zaug, thiab nws yuav tsum xyuas kom meej tias tsis muaj kev cuam tshuam sab nraud lossis kev sib tsoo thaum lub sijhawm kho.
7, duab kos
Yog tias yuav tsum tau tiv thaiv hluav taws rau cov khoom siv ntxiv, cov txheej txheem hluav taws kub tuaj yeem siv tau tom qab cov resin kho tau. Kev pleev xim yuav tsum tau ua tom qab thawj zaug kho ntawm cov resin thiab yuav tsum ua raws li cov qauv tsim thiab kev tsim kho ntawm cov txheej txheem siv.
Kev xav tau zoo
1. Tag nrho cov khoom tuaj, suav nrog cov ntaub ntawv carbon fiber thiab cov khoom sib txuas, yuav tsum ua raws li cov qauv zoo thiab muaj daim ntawv pov thawj ntawm cov khoom lag luam, ua tau raws li qhov yuav tsum tau ua ntawm kev tsim kho engineering.
2. Cov ntaub ntawv carbon fiber yuav tsum tsis txhob muab compressed thaum lub sij hawm thauj mus los thiab khaws cia kom tsis txhob muaj kev puas tsuaj rau cov pa roj carbon fiber ntau, thiab lawv yuav tsum tsis txhob raug tshav ntuj ncaj qha thiab los nag. Cov ntaub nplaum nplaum yuav tsum muab khaws cia rau hauv qhov txias thiab kaw.
3. Kev tsim kho zoo ntawm txhua tus txheej txheem yuav tsum tau coj thiab saib xyuas los ntawm cov neeg ua haujlwm. Tom qab txhua tus txheej txheem tiav lawm, nws yuav tsum xa mus rau tus kws tshaj lij rau kev tshuaj xyuas thiab kev pom zoo ua ntej mus rau cov txheej txheem tom ntej.
4. Siv cov tshuaj pleev xim rau hauv qab
Cov txheej yuav tsum sib npaug zos thiab tsis txhob plam. Nws yog nruj me ntsis txwv tsis pub siv nyob rau hauv cov xwm txheej kub tsis haum. Cov txheej diluted nrog cov kuab tshuaj yuav tsum tau siv nyob rau hauv lub sijhawm teev tseg.
Thaum qhov kub thiab txias qis dua 7 degree, tus txheeb ze av noo RH tsawg dua 85%, cov av noo ntawm cov pob zeb hauv qab yog qis dua 8%, thiab tsis muaj qhov tshwm sim condensation, hloov kho epoxy resin yuav tsum tau siv.
5. Kev puas tsuaj saum npoo ntawm cov khoom
Cov qhov me me thiab cov ces kaum sab hauv ntawm qhov chaw ntawm cov qauv yuav tsum tau kho thiab qib nrog epoxy putty. Txhua qhov tsis sib xws lossis roughness uas tseem muaj nyob rau ntawm qhov chaw tom qab siv cov putty yuav tsum tau smoothed nrog sandpaper.
6. Muab cov pa roj carbon fiber ntau
① Thaum muab cov ntaub ntawv carbon fiber ntau, yuav tsum tau ua raws li cov hauv qab no:
a, Cov ntaub ntawv carbon fiber yuav tsum raug txiav raws li kev cai.
b, Qhov kub, av noo, thiab cov ntsiab lus noo noo ntawm cov khoom ua tau raws li qhov yuav tsum tau ua.
c, Cov txheej hauv qab thiab putty tau ncav cuag ntiv tes kov kom qhuav (cov resin nto tau solidified thiab hardened).
d, Hom kev sib txuas ntawm cov resin yuav tsum haum rau qhov kub thiab txias thaum siv. Tus neeg sawv cev tseem ceeb, tus neeg sawv cev kho, thiab cov tshuaj tua kab mob yuav tsum raug ntsuas kom raug raws li qhov piv txwv, thauj mus rau hauv lub thawv, thiab nplawm tusyees nrog lub tov khoom. Tus nqi ntawm txhua qhov sib tov yuav tsum siv li ntawm lub sijhawm teev tseg.
② Cov qauv kev soj ntsuam zoo rau carbon fiber sib txuas.
a, Cov txheej hauv qab thiab txheej txheej sab saum toj tau zoo rau hauv cov pa roj carbon fiber ntau.
b, Carbon fiber ntau yog nruj nreem khi.
c, Rau hollow nruas nrog ib txoj kab uas hla ntawm 10mm mus rau 30mm, tsawg tshaj li 10 ib square meter yuav suav hais tias tsim nyog; Yog tias muaj ntau tshaj 10 ib square meter, nws yog suav tias yog tsis tsim nyog thiab yuav tsum tau kho. Rau hollow nruas nrog ib txoj kab uas hla tshaj 30mm, txhua qhov tshwm sim yog suav tias yog tsis tsim nyog thiab yuav tsum tau kho.
d, Qhov sib tshooj ntev raws li cov kev taw qhia fiber ntau yuav tsum tsis pub tsawg dua 20cm, thiab qhov sib tshooj ntawm txhua txheej yuav tsum tsis txhob nyob ntawm tib txoj kab ncaj nraim. Cov txheej yuav tsum tau staggered los ntawm tsawg kawg yog 50 cm.
e, Cov lus qhia tshwj xeeb ntawm cov khoom siv fiber ntau, suav nrog txoj haujlwm pasting, qhov ntev, dav, fiber ntau cov kev taw qhia, thiab cov txheej txheem, ua raws li cov cai
Yog xav paub ntxiv txog cov kev daws teeb meem, thov nyem.
Cim npe nrov: Tuam Tshoj carbon fiber structural reinforcement manufacturers, lwm tus neeg, Hoobkas