Dab tsi yog iav fiber reinforced yas?
Iav fiber reinforced plastics yog ntau yam khoom sib xyaw nrog cov khoom sib txawv thiab siv dav.Nws yog cov khoom siv tshiab ua los ntawm cov khoom siv hluavtaws thiabfiberglass composite khoom los ntawm kev sib xyaw ua ke.
Cov yam ntxwv ntawm iav fiber reinforced plastics:
(1)Zoo corrosion kuj: FRP yog cov khoom zoo corrosion-resistant.Nws muaj kev tiv thaiv zoo rau huab cua;dej thiab dav dav ntawm cov kua qaub thiab alkali;ntsev, ntau yam roj thiab cov kuab tshuaj, thiab tau siv dav hauv tshuaj tiv thaiv corrosion.ntawm txhua yam.Nws hloov cov pa roj carbon steel;stainless hlau;ntoo;non-ferrous hlau thiab lwm yam ntaub ntawv.
(2) Lub teeb yuag thiab lub zog siab: Cov txheeb ze ntawm FRP yog nyob nruab nrab ntawm 1.5 thiab 2.0, uas tsuas yog 1/4 txog 1/5 ntawm cov pa roj carbon steel, tab sis lub zog tensile nyob ze lossis siab dua li cov pa roj carbon. steel, thiab lub zog tuaj yeem muab piv nrog qib high-qib alloy steel., yog dav siv nyob rau hauv aerospace;cov thawv ntim siab thiab lwm yam khoom uas yuav tsum tau txo lawv tus kheej qhov hnyav.
(3) Cov khoom siv hluav taws xob zoo: FRP yog cov khoom siv hluav taws xob zoo heev, siv los ua cov insulators, thiab tseem tuaj yeem tswj tau qhov kev ua tau zoo ntawm cov zaus ntau zaus.
(4) Kev ua haujlwm zoo thermal: FRP muaj hluav taws xob tsawg, 1.25 ~ 1.67KJ ntawm chav sov, tsuas yog 1/100 ~ 1/1000 ntawm cov hlau yog cov khoom siv thermal rwb thaiv tsev zoo heev.Qhov zoo tshaj plaws rau kev tiv thaiv thermal thiab ablation tsis kam nyob rau hauv lub sijhawm kub kub.
(5) Kev ua tau zoo ntawm cov txheej txheem: cov txheej txheem molding tuaj yeem xaiv raws li cov qauv ntawm cov khoom, thiab cov txheej txheem yog yooj yim thiab tuaj yeem molded ib zaug.
(6) Kev tsim qauv zoo: cov ntaub ntawv tuaj yeem xaiv tau raws li qhov xav tau kom ua tau raws li qhov yuav tsum tau ua ntawm cov khoom lag luam thiab cov qauv.
(7) Tsawg elastic modulus: Lub elastic modulus ntawm FRP yog 2 zaug loj dua li ntawm ntoo tab sis 10 npaug me dua ntawm cov hlau, yog li nws feem ntau xav tias qhov rigidity tsis txaus nyob rau hauv cov khoom qauv thiab yooj yim deformed.Cov tshuaj tuaj yeem ua rau lub plhaub nyias nyias;Sandwich qauv kuj tuaj yeem ua rau hauv daim ntawv siab modulus fibers lossis reinforcing ribs.
(8) Tsis zoo rau lub sij hawm ntev kub tsis kam: Feem ntau, FRP tsis tuaj yeem siv rau lub sijhawm ntev ntawm qhov kub thiab txias, thiab lub zog ntawm FRP ntawm lub hom phiaj polyester resin yuav txo qis thaum nws siab tshaj 50 degrees.
(9) Kev laus tshwm sim: nyob rau hauv qhov kev txiav txim ntawm ultraviolet rays;cua, xuab zeb, nag thiab daus;chemical media;mechanical kev nyuaj siab, thiab lwm yam, nws yog ib qho yooj yim ua rau kev ua haujlwm degradation.
(10) Tsawg interlaminar shear zog: Lub interlaminar shear lub zog yog borne los ntawm resin, yog li nws yog tsawg.Lub interlayer adhesion tuaj yeem txhim kho los ntawm kev xaiv cov txheej txheem, siv tus neeg sawv cev sib txuas, thiab lwm yam, thiab sim kom tsis txhob interlayer shearing thaum tsim khoom.
Qhov zoo ntawm iav fiber reinforced plastics:
Lub tshav kub-resistant kub ntawm iav fiber reinforced yas yog ntau dua li qhov uas tsis muaj iav fiber ntau, tshwj xeeb tshaj yog nylon plastics
Cov iav fiber reinforced yas muaj qhov qis qis thiab siab rigidity.
Cov iav fiber reinforced yas tsis ntxhov siab tawg, thiab cuam tshuam tsis kam ntawmfemoglas fibra de vidrio yas tau zoo dua qub
Lub zog ntawm iav fiber reinforced yas yog siab, xws li: tensile lub zog, compressive zog, dabtsi yog khoov zog, tag nrho cov siab heev.
Vim muaj lwm yam additives,fiberglassreinforced plastics tau txo qhov kev ua tau zoo ntawm cov iav fiber ntau reinforced plastics, thiab cov khoom siv feem ntau tsis tuaj yeem ignited, yog li nws yog cov khoom siv hluav taws xob.
Disadvantages ntawm iav fiber reinforced plastics:
Vim qhov ntxiv ntawme iav fiber, iav fiber reinforced yas tau ua opaque, thiab nws yog pob tshab ua ntej ntxiv iav fiber ntau.
Cov yas iav fiber reinforced yas muaj qis toughness thiab nce brittleness dua cov yas tsis muaj iav fiber ntau;
Vim yog qhov sib ntxiv ntawm cov iav fiber ntau, cov yaj viscosity ntawm tag nrho cov ntaub ntawv nce, lub fluidity yuav tsis zoo, thiab kev txhaj tshuaj siab ntau dua qhov uas tsis muaj iav fiber ntau.Rau kev txhaj tshuaj molding ib txwm, qhov kev txhaj tshuaj kub ntawm tag nrho cov yas reinforced yog siab tshaj qhov uas tsis ntxiv iav fiber ntau.Cov iav fiber ntau tau tsa los ntawm 10 ℃ - 30 ℃.
Vim qhov sib ntxiv ntawm cov iav fiber ntau thiab cov khoom ntxiv, cov khoom hygroscopic ntawmiav fiberglass reinforced plastics tau zoo heev.Thawj cov yas ntshiab uas tsis nqus dej kuj tseem yuav nqus tau.Yog li ntawd, lawv yuav tsum tau qhuav thaum txhaj tshuaj molding.
Thaum lub sij hawm txhaj tshuaj molding txheej txheem ntawm iav fiber reinforced yas, iav fiber ntau tuaj yeem nkag mus rau saum npoo ntawm cov khoom yas, ua rau saum npoo ntawm cov khoom ntxhib heev thiab speckled.Txhawm rau kom ua tiav qhov zoo dua, lub tshuab pwm kub yog siv los ua kom sov lub pwm thaum txhaj tshuaj molding, kom cov yas polymer nkag mus rau saum npoo ntawm cov khoom, tab sis cov tsos zoo ntawm cov yas tsis tuaj yeem ua tiav.
Tom qab cov iav fiber reinforced,e iav fiberglass yog cov khoom siv nrog siab hardness.Tom qab cov additive yog volatilized ntawm qhov kub thiab txias, nws yog ib tug heev corrosive gas, uas ua rau zoo heev hnav thiab corrosion rau cov ntsia hlau thiab txhaj tshuaj molding tshuab.Yog li ntawd, hom khoom siv no yog siv hauv kev tsim khoom.Thaum siv cov pwm thiab cov tshuab txhaj tshuaj molding, ua tib zoo saib xyuas cov khoom siv los tiv thaiv corrosion thiab deg hardness kho ntawm cov cuab yeej.
Txhim kho cov nyhuv ntawm iav fiber ntau ntawm nylon
Nylon, tseem hu ua polyamide, yog cov khoom siv hluavtaws nrog ntau yam kev siv, uas yog siv rau hauv textiles, ntim, mechanical qhov chaw thiab lwm yam.
Raws li cov yas engineering, PA66 muaj ntau pawg hydrophilic amide, uas txwv nws daim ntawv thov teb.Nws yog feem ntau siv hauv kev lag luam los hloov kho nws los ntawm kev siv copolymerization, sib xyaw toughening, thiab ntxiv dag zog.
iav fiber reinforcement yog ib qho kev hloov kho uas feem ntau siv.Nws tuaj yeem txhim kho qhov hnav tsis kam, lub zog, hardness thiab seem stability ntawm nylon.
Cov iav fiber ntau yog ua los ntawm pyrophyllite, quartz xuab zeb, limestone thiab lwm yam minerals los ntawm kev kub kub firing, hlau kos duab, winding, weaving thiab lwm yam txheej txheem, thiab nws txoj kab uas hla monofilament yog hais txog ob peb microns.
Lub hauv paus ntsiab lus ntawm iav fiber reinforcement: Muaj peb txoj hauv kev rau fiber ntau kom nqus tau lub zog: fiber ntau tawg, fiber ntau rub tawm, thiab resin breakage.Thaum qhov ntev ntawm cov fiber ntau nce, cov fiber ntau rub tawm siv lub zog ntau dua, uas muaj txiaj ntsig zoo rau kev txhim kho qhov cuam tshuam lub zog.
PA66 / iav fiber ntau cov ntaub ntawv muaj cov dej tsis haum, muaj zog tshwj xeeb thiab tshuaj tiv thaiv, thiab nws cov khoom muaj cov dej noo zoo nqus, qhov ruaj khov, siab zog, hardness, thiab kev ua haujlwm, yog li nws tau siv dav hauv kev tsheb ciav hlau, tshuab, tsheb. , khoom siv hluav taws xob thiab lwm yam.
Qhov ntev ntawmcov khoom siv elastic modulus fiberglassFeem ntau siv los ntxiv dag zog rau nylon yog li 3mm txog 12mm.Raws li qhov ntev fiber ntau nce, cov nyhuv ntawm cov khoom siv ntxiv ntxiv.Zoo nyob ib ncig ntawm 12mm.
Feem ntau, qhov ntev ntawmfiberglass filamentyog 12mm, thiab qhov ntev ntawmchopped iav fiber ntauyog 3mm.Piv nrog rau cov iav fiber ntau luv luv, qhov zoo tshaj plaws ntawm cov iav fiber ntau ntxiv yog tias qhov cuam tshuam lub zog yog ob npaug.Tsis tas li ntawd, ntev iav fiber reinforced nylon composites muaj qhov zoo ntawm lub zog siab, siab rigidity, siab notched cuam tshuam lub zog, lub sij hawm luv luv tshav kub tsis kam thiab zoo qaug zog, thiab tseem muaj peev xwm tuav tau zoo txhua yam khoom nyob rau hauv kub thiab high humidity ib puag ncig., uas tuaj yeem siv los ua cov khoom siv tsis siv hlau.
#fiberglass composite khoom#fiberglass#e iav fiberglass#fiberglass filament#chopped iav fiber ntau
Post lub sij hawm: Nov-16-2022