Lub cev lub cev ntawm cov khoom sib xyaw yog dominated los ntawm fibers.Qhov no txhais tau hais tias thaum resin thiab fibers sib xyaw ua ke, lawv cov khoom zoo ib yam li cov fibers ntawm tus kheej.Cov ntaub ntawv ntsuam xyuas qhia tau hais tias cov khoom siv fiber ntau yog cov khoom uas muaj feem ntau ntawm cov khoom thauj.Yog li ntawd, kev xaiv ntaub yog qhov tseem ceeb thaum tsim cov qauv sib xyaw.
Pib tus txheej txheem los ntawm kev txiav txim siab hom kev txhawb zog uas xav tau hauv koj qhov project.Cov tuam txhab lag luam tuaj yeem xaiv los ntawm peb yam khoom siv ntxiv: iav fiber ntau, carbon fiber thiab Kevlar® (aramid fiber).Cov iav fibers zoo li yog qhov kev xaiv dav dav, thaum cov roj carbon fibers muaj qhov tawv tawv thiab Kevlar® siab ua haujlwm.Nco ntsoov tias hom ntaub tuaj yeem sib xyaw ua ke hauv laminates los tsim cov hybrid stacks nrog cov txiaj ntsig ntawm ntau tshaj ib qho khoom.
Thaum koj tau txiav txim siab ntawm kev sau cov ntaub, xaiv qhov hnyav thiab weave style uas haum rau koj txoj haujlwm xav tau.Qhov sib dua ntawm ounce ntawm cov ntaub, qhov yooj yim dua nws yog drape tshaj qhov chaw contoured heev.Lub teeb kuj tseem siv cov resin tsawg, yog li tag nrho cov laminate tseem sib dua.Raws li cov ntaub tau hnyav dua, lawv hloov tau tsawg dua.Qhov nruab nrab qhov hnyav khaws cia txaus txaus los npog feem ntau contours, thiab lawv pab txhawb rau lub zog ntawm qhov.Lawv yog cov kev lag luam zoo heev thiab tsim cov khoom muaj zog thiab lub teeb yuag rau kev siv tsheb, dej hiav txwv thiab kev lag luam.Braided rovings yog qhov hnyav hnyav uas feem ntau siv hauv nkoj tsim thiab ua pwm.
Txoj kev ntawm cov ntaub yog woven yog suav tias yog nws cov qauv lossis style.Xaiv los ntawm peb hom weave: tiaj, satin thiab twill.Plain weave styles yog qhov pheej yig tshaj plaws thiab hloov tau yooj yim, tab sis lawv tuav ua ke zoo thaum txiav.Nquag nce / nqis hla ntawm threads txo lub zog ntawm lub tiaj weave, txawm hais tias lawv tseem txaus rau txhua tus tab sis cov ntawv thov kev ua tau zoo tshaj plaws.
Satin thiab twill weave yog softer thiab muaj zog dua li weave.Nyob rau hauv satin weaving, ib tug weft xov floats tshaj peb mus rau xya lwm warp threads thiab ces sewn nyob rau hauv lwm.Nyob rau hauv no xoob weave hom, xov khiav ntev dua, tswj lub theoretical zog ntawm fiber.Ib qho twill weave muab kev sib haum xeeb ntawm satin thiab cov qauv yooj yim, nrog rau feem ntau xav tau herringbone embellishment nyhuv.
Tech Tip: Txhawm rau ntxiv qhov yooj yim rau cov ntaub, txiav nws los ntawm yob ntawm 45-degree kaum sab xis.Thaum txiav li no, txawm tias cov ntaub roughest drape zoo dua ntawm silhouette.
Fiberglass Reinforcement
Fiberglass yog lub hauv paus ntawm kev lag luam composites.Nws tau siv ntau daim ntawv thov sib xyaw txij li xyoo 1950 thiab nws cov khoom siv lub cev tau nkag siab zoo.Fiberglass yog lub teeb yuag, muaj lub zog tensile thiab compressive zog, tuaj yeem tiv taus kev puas tsuaj thiab kev thauj mus los, thiab yooj yim los daws.
Fiberglass yog siv dav tshaj plaws ntawm tag nrho cov khoom siv sib xyaw.Qhov no feem ntau yog vim nws tus nqi qis thiab nruab nrab lub cev muaj zog.Fiberglass yog qhov zoo rau cov haujlwm niaj hnub thiab qhov chaw uas tsis tas yuav muaj fiber ntau cov ntaub ntxiv lub zog thiab kav ntev.
Txhawm rau ua kom muaj zog ntawm fiberglass, nws tuaj yeem siv nrog epoxy thiab tuaj yeem kho tau siv cov txheej txheem lamination.Nws yog qhov zoo tagnrho rau cov ntawv thov hauv tsheb, marine, kev tsim kho, tshuaj lom neeg thiab kev lag luam aviation, thiab feem ntau siv hauv cov khoom ua si.
Kevlar® Reinforcement
Kevlar® yog ib qho ntawm thawj lub zog hluavtaws fibers kom tau txais kev lees paub hauv kev lag luam fiber ntau (FRP) kev lag luam.Composite qib Kevlar® yog lub teeb yuag, muaj lub zog tshwj xeeb tensile zoo heev, thiab suav tias muaj kev cuam tshuam zoo heev thiab tiv taus abrasion.Cov kev siv feem ntau muaj xws li lub teeb hulls xws li kayaks thiab canoes, aircraft fuselage panels thiab siab hlab ntsha, txiav-resistant hnab looj tes, lub cev armor, thiab lwm yam.Kevlar® yog siv nrog epoxy lossis vinyl ester resins.
Carbon Fiber Reinforcement
Cov pa roj carbon fiber ntau muaj ntau dua 90% carbon thiab muaj lub zog tensile siab tshaj plaws hauv kev lag luam FRP.Qhov tseeb, nws kuj muaj qhov siab tshaj plaws compressive thiab flexural zog hauv kev lag luam.Tom qab ua tiav, cov fibers no ua ke los tsim cov carbon fiber reinforcements xws li ntaub, cab, thiab lwm yam.Cov pa roj carbon fiber reinforcement muab lub zog tshwj xeeb thiab nruj, thiab nws feem ntau kim dua li lwm cov khoom siv fiber ntau.
Txhawm rau ua kom muaj zog ntawm cov pa roj carbon fiber ntau, nws yuav tsum tau siv nrog epoxy thiab tuaj yeem kho tau siv cov txheej txheem lamination.Nws yog qhov zoo tagnrho rau kev siv hauv tsheb, marine thiab aerospace, thiab feem ntau siv rau hauv cov khoom ua si.
Post lub sij hawm: Lub Xya hli ntuj-19-2022