Fabrication ntawm prepreg- Carbon fiber raw khoom
Fabrication ntawm prepreg
Cov pa roj carbon fiber ntau prepreg yog tsim los ntawm cov fiber ntau txuas ntxiv ntev thiab tsis kho cov resin. Nws yog feem ntau siv raw cov ntaub ntawv rau kev ua tau zoo composites. Prepreg daim ntaub yog tsim los ntawm ib tug series ntawm fiber ntau bundles uas muaj impregnated resin. Lub pob fiber ntau yog thawj zaug sib sau ua ke rau hauv cov ntsiab lus xav tau thiab dav, thiab tom qab ntawd cov fibers raug sib cais los ntawm cov kab fiber ntau. Nyob rau tib lub sijhawm, cov resin yog rhuab thiab coated rau ntawm daim ntawv tso tawm sab saud thiab qis. Cov fiber ntau thiab cov ntawv tso tawm sab saud thiab qis dua coated nrog cov resin yog nkag rau hauv cov menyuam tib lub sijhawm. Cov fibers yog nyob nruab nrab ntawm cov ntawv tso tawm sab saud thiab qis, thiab cov resin sib npaug ntawm cov fibers los ntawm lub siab ntawm cov menyuam. Tom qab cov resin impregnated fiber yog txias los yog qhuav, nws yog dov mus rau hauv ib tug reel zoo los ntawm ib tug coiler. Cov resin impregnated fiber ib puag ncig los ntawm sab sauv thiab sab tso tawm daim ntawv yog hu ua carbon fiber prepreg. Cov dov prepreg yuav tsum tau gelatinized mus rau theem ntawm ib nrab cov tshuaj tiv thaiv nyob rau hauv lub tswj kub thiab av noo ib puag ncig. Lub sijhawm no, cov resin yog cov khoom, uas yog hu ua B-theem.
Feem ntau, thaum ua cov ntaub ntawv carbon fiber prepreg, cov resin txais ob hom. Ib qho yog ua kom sov ncaj qha rau cov cob kom txo nws cov viscosity thiab pab txhawb kev faib tawm ntawm cov fibers, uas yog hu ua kub yaj nplaum txoj kev. Lwm qhov yog kom yaj cov resin rau hauv cov flux kom txo cov viscosity, thiab tom qab ntawd kub nws tom qab cov resin impregnated nrog fiber ntau rau volatilize flux, uas yog hu ua flux method. Nyob rau hauv tus txheej txheem ntawm kub yaj nplaum txoj kev, cov ntsiab lus resin yog ib qho yooj yim los tswj, cov kauj ruam kom qhuav yuav raug tshem tawm, thiab tsis muaj residual flux, tab sis cov resin viscosity siab, uas yog ib qho yooj yim ua rau fiber ntau deformation thaum impregnating fiber braids. Cov txheej txheem hnyav muaj cov nqi peev tsawg thiab cov txheej txheem yooj yim, tab sis kev siv cov flux yog ib qho yooj yim kom nyob twj ywm hauv prepreg, uas cuam tshuam rau lub zog ntawm cov khoom sib xyaw zaum kawg thiab ua rau ib puag ncig muaj kuab paug.
Cov hom carbon fiber prepreg daim ntaub muaj xws li unidirectional carbon fiber prepreg daim ntaub thiab woven carbon fiber prepreg daim ntaub. Unidirectional carbon fiber prepreg daim ntaub muaj lub zog loj tshaj plaws nyob rau hauv cov kev taw qhia fiber ntau thiab feem ntau yog siv rau laminated daim hlau ua ke nyob rau hauv ntau cov lus qhia, thaum woven carbon fiber prepreg daim ntaub muaj sib txawv weaving txoj kev, thiab nws lub zog yog hais txog tib yam nyob rau hauv ob qho tib si qhia, yog li nws muaj peev xwm. siv rau cov qauv sib txawv.
peb tuaj yeem muab cov carbon fiber ntau prepreg raws li koj xav tau
Cia ntawm prepreg
Cov resin ntawm carbon fiber prepreg yog nyob rau theem ntawm ib feem ntawm cov tshuaj tiv thaiv, thiab yuav txuas ntxiv mus thiab kho nyob rau hauv chav tsev kub. Nws feem ntau yuav tsum tau muab cia rau hauv qhov chaw uas tsis muaj qhov kub thiab txias. Lub sij hawm uas carbon fiber prepreg tuaj yeem khaws cia hauv chav sov yog hu ua lub voj voog cia. Feem ntau, yog tias tsis muaj cov cuab yeej cia kub qis, qhov ntau lawm ntawm prepreg yuav tsum tau tswj nyob rau hauv lub voj voog cia thiab tuaj yeem siv tau.
