Cov ntaub checkered yog non - twist roving dawb ntaub, yog ib qho tseem ceeb hauv paus khoom rau tes - paste FRP.Lub zog ntawm gingham feem ntau yog nyob rau hauv warp thiab weft kev taw qhia ntawm cov ntaub.Rau lub sijhawm uas xav tau siab warp lossis weft lub zog, nws tseem tuaj yeem ua rau hauv ib txoj kev gingham, uas tuaj yeem npaj rau hauv warp lossis weft ntau twisting roving.
Cov kev xav tau zoo ntawm gingerbread yog raws li hauv qab no: ①Cov ntaub yog zoo ib yam, lub ntug yog ncaj, qhov saum npoo yog tiaj thiab matted, thiab tsis muaj stain, fuzz, crease lossis wrinkle;② Warp thiab weft ceev, thaj tsam qhov hnyav, daim ntaub dav thiab yob ntev raws li tus qauv;③ Winding ntawm daim ntawv ruaj khov, winding zoo zoo;④ Ceev thiab zoo resin permeability;⑤ Lub zog qhuav thiab ntub dej ntawm cov laminates ua los ntawm cov ntaub yuav tsum ua tau raws li qhov yuav tsum tau ua.
Cov yam ntxwv ntawm cov sib xyaw coated nrog plaid daim ntaub yog tsawg interlaminar shear zog thiab tsis zoo compressive thiab qaug zog.
Fiberglass ntaub ntawv
(1) Txiav cov xov paj: txiav cov iav xov paj (qee zaum kuj tsis muaj qhov sib tw rov qab) rau hauv 50mm ntev, kis nws randomly tab sis tusyees ntawm txoj siv mesh, ces siv emulsion binder los yog sprinkle hmoov binder, tshav kub kho thiab daim ntawv cog lus rau kev txiav xov paj. .Txiav kev xav yog tsuas yog siv rau hauv tes muab tshuaj txhuam, nruam phaj ua thiab tuag nias thiab SMC txheej txheem.Cov kev xav tau zoo ntawm cov xov paj txiav yog raws li hauv qab no: ① thaj tsam zoo sib xws raws qhov dav dav;② Cov hlua txiav tau sib npaug ntawm qhov muaj kev xav, tsis muaj qhov loj, thiab cov ntawv khi tau sib npaug.③ muaj zog qhuav muaj zog;④ Zoo heev resin infiltration thiab nkag mus.
(2) Nruam raw cov ntaub ntawv: cov iav raw cov ntaub ntawv tsim nyob rau hauv tus txheej txheem ntawm kev kos duab los yog cov ntaub ntawv nyoos nruam rho tawm los ntawm raw cov ntaub qhwv yog kis tau rau ntawm lub nruam txav mesh siv nyob rau hauv daim duab 8, thiab cov hmoov binder yog glued ua ke.Cov fiberglass nruam fiberglass lev yog tas mus li, yog li nws qhov kev txhawb zog ntawm cov khoom siv sib xyaw yog zoo dua li ntawm kev txiav fiberglass lev.Feem ntau yog siv rau hauv cov txheej txheem ntawm pultruding, RTM, lub hnab siab thiab iav xav tau cov khoom siv thermal ntxiv (GMT).
(3) Nto xav: FRP cov khoom feem ntau yuav tsum tau tsim cov txheej txheej nplua nuj, uas feem ntau ua tiav nrog nruab nrab alkali iav nto.Vim tias qhov kev xav no yog ua los ntawm nruab nrab alkali iav (C), nws muab FRP tshuaj tiv thaiv, tshwj xeeb tshaj yog acid tsis kam.Nyob rau tib lub sijhawm, vim tias qhov xav tau nyias nyias thiab lub iav fiber ntau txoj kab uas hla me me, nws tuaj yeem nqus tau ntau cov resin los tsim cov txheej txheej resin nplua nuj, uas npog cov nplej ntawm cov iav fiber ntau cov ntaub ntawv (xws li plaid daim ntaub), thiab ua si. lub luag haujlwm ntawm kev hloov kho saum npoo.
(4) Needled xav: needled xav los yog muab faib ua luv fiber needled xav thiab nruam raw silk needled xav.Staple fiber ntau xav tau yog tsim los ntawm kev txiav iav fiber ntau rov mus rau hauv 50mm daim thiab randomly nteg lawv ntawm lub substrate ua ntej tso rau ntawm txoj siv conveyor.Tom qab ntawd cov koob nrog barbs yog siv los koob cov staple fibers rau hauv lub substrate, thaum crochet hooks ib co fibers mus rau ib tug peb-dimensional qauv.Cov khoom siv hauv paus tuaj yeem yog iav fiber ntau lossis lwm cov ntaub nyias nyias, cov koob zoo li no muaj qhov xav tsis thoob.Nws cov khoom siv tseem ceeb suav nrog cov khoom siv hluav taws xob rwb thaiv tsev, cov khoom siv hauv cov cua sov, cov khoom siv lim dej, thiab tseem tuaj yeem siv rau hauv kev tsim FRP, tab sis lub zog ntawm FRP yog tsawg, qhov kev siv yog txwv.Lwm yam kev nruam thawj filament needled xav yog peb-seem qauv ntawm kev xav nyob rau hauv uas nruam iav thawj filament yog randomly pov rau nruam mesh siv los ntawm hlau ntuav ntaus ntawv thiab koob los ntawm koob phaj.Hom kev xav no tsuas yog siv rau hauv kev tsim cov iav fiber reinforced thermoplastic stampable nplooj ntawv.
(5) stitched xav: txiav iav fiber ntau los ntawm 50mm los yog txawm 60cm ntev tuaj yeem stitched rau hauv txiav fiber ntau lossis ntev fiber ntau xav los ntawm lub tshuab xaws.Tus qub tuaj yeem hloov cov tsoos binder bonded txiav nyob rau hauv ntau yam kev siv, thiab lub tom kawg tuaj yeem hloov cov ntaub ntawv nyoos txuas ntxiv mus rau qee yam.Lawv qhov zoo sib xws yog tsis muaj binder, tsis txhob muaj kuab paug ntawm cov txheej txheem ntau lawm, tib lub sijhawm, kev nkag tau zoo, kev sib khi ua haujlwm, tus nqi qis.
Post lub sij hawm: Mar-08-2023