txoj moo

Cov khoom siv txhawb tau yog cov khoom siv txhawb nqa ntawm Frp cov khoom, uas tau txiav txim siab cov khoom siv tshuab ntawm cov khoom pultruded. Kev siv ntawm cov khoom siv txhawb ntxiv kuj muaj qee qhov cuam tshuam rau txo cov khoom lag luam uas txo qis ntawm cov khoom thiab ua kom lub zog tsis tshua muaj cua sov thiab kub cuam tshuam.

Hauv kev tsim ntawm Frp cov khoom lag luam, kev xaiv ntawm kev txhawb nqa cov ntaub ntawv molding cov khoom lag luam, vim tias hom kev txhawb nqa cov khoom lag luam, vim tias hom kev ua tau zoo ntawm Frp cov khoom, thiab lawv cia li txiav txim siab cov neeg kho tshuab lub zog thiab elastic modulus ntawm Frp cov khoom. Kev ua yeeb yam ntawm cov khoom siv pultruded siv cov khoom siv sib txawv kuj txawv.

Tsis tas li ntawd, thaum ua raws cov khoom lag luam uas yuav tsum tau ua ntawm molding txheej txheem, tus nqi yuav tsum tau txiav txim siab, thiab pheej yig ntxiv kev siv cov ntaub ntawv ntau li ntau tau. Feem ntau, cov tsis xaiv rov qab ntawm cov iav fiber ntau cov strands yog qis dua li cov ntaub fiber ntau dua; Tus nqi ntawmIav Fiber Matsyog qis dua li ntawm daim ntaub, thiab cov impermility yog qhov zoo. , tab sis lub zog yog tsawg; Lub alkali fiber yog pheej yig dua li cov alkali-dawb fiber ntau, tab sis nrog kev nce ntawm alkali tsis kam, corrosion zog, thiab hluav taws xob yuav tsawg.

Cov hom ntawm feem ntau siv siv cov khoom siv yog raws li hauv qab no

1. Tsis muaj tseeb lub khob fiber ntau roving

Siv txhawb cov sizing tus neeg sawv cev, untwistedIav Fiber Reovingtuaj yeem faib ua peb hom: plied raw lo lo ntxhuav, ncaj qha untwisted roving thiab bulked untwisted roving.

Vim yog cov tsis sib xws ntawm cov pluaj plied, nws yooj yim rau cov hlua khi, uas ua rau cov khoom siv xoob ntawm cov khoom siv Pulfustrusion, uas cuam tshuam rau kev ua haujlwm zoo ntawm kev ua haujlwm.

Nco ntsoov rov qab muaj cov yam ntxwv ntawm cov khoom zoo, cov khoom siv hluav taws xob nrawm ntawm cov khoom lag luam, yog li feem ntau ntawm qhov ncaj qha untings zoo li siv tam sim no.

Bulked Rovings tau txais txiaj ntsig zoo los txhim kho lub zog hloov ntawm cov khoom lag luam, xws li kev ua txhaum thiab huab cua-textured li qub. Tej roving muaj ob lub zog siab ntawm kev txuas mus ntev ntev thiab kev sib txuas ntawm cov qoob loo luv luv. Nws yog ib qho khoom siv nrog qhov kub-ua tsis kam, tsawg thermal conductivity, corrosion tsis kam, muaj peev xwm muaj peev xwm thiab siab pom kev ua tau zoo. Qee tus fibers tau nce mus rau ntawm lub xeev monofilament, yog li nws kuj tseem tuaj yeem txhim kho cov khoom lag luam zoo ntawm cov khoom siv pultruded. Ntawm tam sim no, bulked rovings tau siv dav hauv tsev thiab txawv teb chaws, raws li Warp thiab Weft yarns rau cov ntaub qhwv ntsej muag lossis cov ntaub qhwv. Yuav siv tau los tsim kev sib txhuam, rwb thaiv tsev, kev tiv thaiv lossis cov ntaub ntawv tiv thaiv.

Kev ua tau zoo yuav tsum muaj cov iav fiber ntau rovings rau pultrusion rau pultrusion rau pultrusion:

(1) Tsis muaj Overhang Prenomenon;

(2) cov fiber ntau yog cov khaub ncaws zoo nkauj;

(3) Reveling Zoo;

(4) hnav tsis kam;

(5) Muaj ob peb lub taub hau tawg, thiab nws tsis yooj yim rau fluff;

(6) zoo wettability thiab ceev resin impregnation;

(7) lub zog siab thiab nruj.

Fiberglass Tshuaj Tsuag Roving 

2. Iav fiber ntau

Txhawm rau ua kom ua rau cov khoom frp Nruam Strand Mat yog ib qho ntawm feem ntau siv iav fiber ntau transverse reactect cov ntaub ntawv tam sim no. Txhawm rau txhim kho cov tsos ntawm cov khoom,nplaim Matqee zaum siv.

Cov txheej txheem txuas ntxiv strand yog tsim ntawm ob peb txheej ntawm cov iav txuas nruam uas tau sib txuas ua ke hauv lub voj voog, thiab cov fibers tau sib khi nrog cov nplaum. Lub saum npoo muaj ib daim nyias nyias yog muaj ib daim nyias nyias zoo uas tau tsim los ntawm kev coj tus kheej thiab tsis sib xws ntawm cov nqaij ntuag ntev thiab sib khi nrog cov nplaum. Cov ntsiab lus Fiber yog 5% rau 15%, thiab cov tuab yog 0.3 txog 0.4 hli. Nws tuaj yeem ua rau cov khoom du thiab zoo nkauj, thiab txhim kho kev laus tiv thaiv ntawm cov khoom.

Cov yam ntxwv ntawm iav Fiber Mat yog: Cov kev pab them zoo, yooj yim kom tau saturated nrog cob, cov kua nplaum siab

Cov kev tseev kom muaj ntawm cov txheej txheem pultrusion rau lub khob fiber ntau lev:

(1) muaj high tshuab zog

(2) rau Chemically sib tsoo strand mats, yuav tsum tiv thaiv kev lom zem thiab kev kub ntxhov thaum lub sijhawm tshem tawm kom paub tseeb lub sijhawm thaum tsim cov txheej txheem;

(3) wettability zoo;

(4) qis dua fluff thiab tsawg dua lub taub hau tawg.

Fiberglass stitched lev

Iav Fiber Ntxiv Mat

3. Polyester Fiber nto sib dhos Mat

Polyester Fiber nto nyob muaj ib hom tshiab ntawm kev txhawb nqa fiber ntau hauv cov kev lag luam pultrusion. Muaj ib qho khoom hu ua Nexus hauv Tebchaws Asmeskas, uas tau siv dav hauv cov khoom lag luam pultruded los hloovIav Fiber Txawv MatsCov. Nws muaj cov nyhuv zoo thiab tus nqi qis. Nws tau ua tiav zoo rau ntau tshaj 10 xyoo.

Qhov zoo ntawm kev siv polyester fiber ntaub so ntswg lev:

(1) Nws tuaj yeem txhim kho qhov cuam tshuam tsis kam, corrosion tsis kam thiab atmospheric aging tsis kam ntawm cov khoom;

(2) Nws tuaj yeem txhim kho lub xeev saum npoo ntawm cov khoom lag luam thiab ua rau cov khoom lag luam smoother;

(3) Daim ntawv thov thiab Tensile cov teeb meem ntawm Polyester Fiber saum npoo zoo li C iav nto pom zoo li thaum lub sij hawm pultrusion, txo cov chaw nres tsheb;

(4) Lub vijtsam pultrusion tuaj yeem nce ntxiv;

(5) Nws tuaj yeem txo cov ris ntawm cov pwm thiab txhim kho kev pabcuam lub neej ntawm cov pwm

4. Cov ntaub pua fiber ntau cov kab xev

Hauv qee cov khoom tshwj xeeb pultruded, txhawm rau kom tau raws li qee qhov kev ua tau zoo, cov iav iav nrog rau ntau dua 0.2 hli yog siv, thiab lub zog tensile thiab lub zog hloov tau zoo heev.

5. Daim ntawv thov ntawm ob-seem ntaub thiab peb-seem ntaub

Cov khoom siv transverse ntawm cov khoom lag luam pultruded yog cov neeg pluag, thiab kev siv Bidirectional braiDing zoo txhim kho lub zog thiab tawv ncauj ntawm cov khoom pultruded.

Lub warp thiab weft fibers ntawm cov ntaub qhwv no tsis cuam tshuam nrog txhua lwm yam, tab sis sib cuam tshuam nrog lwm cov ntaub ntawv woven, yog li nws tau sib txawv kiag li ntawm cov khaub ncaws iav. Cov fibers nyob rau hauv txhua qhov kev taw qhia yog nyob rau hauv ib lub xeev sib tsoo thiab tsis ua ib qho dabtsi los yog, yog li lub zog ntawm cov khoom pultruded, yog ntau dua li ntawm kev sib xyaw ua los ntawm kev txuas ntxiv.

Ntawm tam sim no, peb-txoj kev braifing thev naus laus zis tau dhau los ua cov cuab yeej kev txhim kho thev naus laus zis tshaj plaws hauv cov khoom sib xyaw. Raws li cov load uas yuav tsum tau ua, cov fiber ntau dua yog pov rau hauv ib qho qauv nrog peb-seem qauv, thiab cov duab yog tib yam li cov khoom siv sib xyaw ua ke. Txoj kev peb txoj kev npuag yog siv nyob rau hauv cov pultruster txheej txheem kom kov yeej cov interdlaminar shear ntawm cov kev ua yeeb yam txhawb nqa cov khoom lag luam fiber ntau pultruscing. Nws muaj qhov tsis zoo ntawm cov khoom muaj zog qis thiab yooj yim delamination, thiab nws qhov kev ua tau zoo interlayer yog qhov zoo tagnrho.

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