xov xwm

Cov txiaj ntsig thiab qhov tsis zoo ntawm ob qho no tau muab piv rau raws li hauv qab no:

Kev tso tes yog ib qho txheej txheem qhib pwm uas tam sim no suav txog 65% ntawmiav fiberCov khoom sib xyaw polyester uas muaj zog. Nws cov txiaj ntsig yog tias nws muaj kev ywj pheej zoo hauv kev hloov pauv cov duab ntawm cov pwm, tus nqi pwm qis, kev hloov pauv tau zoo, kev ua haujlwm ntawm cov khoom lag luam tau lees paub los ntawm kev ua lag luam, thiab kev nqis peev tsawg. Yog li nws tshwj xeeb tshaj yog rau cov tuam txhab me, tab sis kuj rau kev lag luam marine thiab aerospace, qhov twg nws feem ntau yog ib feem loj ib zaug. Txawm li cas los xij, kuj muaj ntau yam teeb meem hauv cov txheej txheem no. Yog tias cov pa phem volatile organic compound (VOC) tshaj qhov tus qauv, nws muaj kev cuam tshuam loj rau kev noj qab haus huv ntawm cov neeg ua haujlwm, nws yooj yim poob cov neeg ua haujlwm, muaj ntau yam kev txwv rau cov ntaub ntawv tso cai, cov khoom ua tau zoo qis, thiab cov resin raug pov tseg thiab siv ntau, tshwj xeeb tshaj yog cov khoom. Qhov zoo tsis ruaj khov. Qhov feem pua ​​ntawmiav fiber thiab cov resin, qhov tuab ntawm cov khoom, qhov nrawm ntawm cov txheej, thiab qhov sib xws ntawm cov txheej yog txhua yam cuam tshuam los ntawm tus neeg teb xov tooj, thiab tus neeg teb xov tooj yuav tsum muaj cov thev naus laus zis zoo dua, kev paub dhau los thiab zoo.Cov roj hmabCov ntsiab lus ntawm cov khoom siv tes tso feem ntau yog li ntawm 50% -70%. VOC emission ntawm cov txheej txheem qhib pwm tshaj 500PPm, thiab qhov volatilization ntawm styrene yog siab txog li 35% -45% ntawm cov nyiaj siv. Cov kev cai ntawm ntau lub tebchaws yog 50-100PPm. Tam sim no, feem ntau cov tebchaws txawv tebchaws siv cyclopentadiene (DCPD) lossis lwm cov resins tso tawm styrene qis, tab sis tsis muaj qhov hloov pauv zoo rau styrene ua monomer.

Cov ntaub pua plag fiberglass txheej txheem tso tes

Cov roj hmab nqus tsevCov txheej txheem qhia txog yog cov txheej txheem tsim khoom pheej yig uas tau tsim nyob rau hauv 20 xyoo dhau los, tshwj xeeb tshaj yog tsim rau kev tsim cov khoom loj. Nws cov txiaj ntsig yog raws li nram no:

(1) Cov khoom muaj kev ua tau zoo heev thiab muaj txiaj ntsig zoo.Nyob rau hauv cov ntaub ntawv ntawm tib yamfiberglasscov ntaub ntawv raw, lub zog, kev tawv thiab lwm yam khoom siv ntawm cov khoom siv nqus tsev tuaj yeem txhim kho tau ntau dua 30% -50% piv rau cov khoom siv tes ua (Rooj 1). Tom qab cov txheej txheem ruaj khov, cov txiaj ntsig tuaj yeem ze li ntawm 100%.

Rooj 1Kev sib piv ntawm kev ua tau zoo ntawm cov polyester ib txwm muajfiberglass

(2) Cov khoom zoo ruaj khov thiab qhov rov ua dua tau zoo.Cov khoom zoo tsis cuam tshuam los ntawm cov neeg teb xov tooj, thiab muaj qib siab ntawm kev sib xws txawm tias nws yog tib yam khoom lossis ntawm cov khoom. Cov ntsiab lus fiber ntawm cov khoom tau muab tso rau hauv pwm raws li qhov ntau teev tseg ua ntej txhaj tshuaj resin, thiab cov khoom muaj qhov sib piv resin tsis tu ncua, feem ntau 30% -45%, yog li qhov sib xws thiab rov ua dua ntawm cov khoom ua tau zoo dua li cov txheej txheem tso tes. ntau dua, thiab tsawg dua qhov tsis zoo.

(3) Kev ua haujlwm tiv thaiv kev qaug zog tau zoo dua, uas tuaj yeem txo qhov hnyav ntawm cov qauv.Vim muaj cov fiber ntau, porosity tsawg thiab kev ua tau zoo ntawm cov khoom, tshwj xeeb tshaj yog kev txhim kho ntawm lub zog interlaminar, qhov kev tiv thaiv qaug zog ntawm cov khoom tau zoo heev. Yog tias muaj tib lub zog lossis qhov tawv, cov khoom ua los ntawm cov txheej txheem nqus tsev tuaj yeem txo qhov hnyav ntawm cov qauv.

(4) Ib puag ncig tus phooj ywg.Cov txheej txheem nqus cov roj hmab yog ib qho txheej txheem pwm kaw uas cov organic uas tsis muaj zog thiab cov pa phem raug kaw rau hauv lub hnab nqus. Tsuas yog me ntsis ntawm cov roj hmab xwb uas muaj thaum lub twj tso pa tawm (lim tau) thiab lub thoob roj hmab qhib. Cov pa phem VOC tsis tshaj tus qauv ntawm 5PPm. Qhov no kuj txhim kho qhov chaw ua haujlwm rau cov neeg ua haujlwm, ua kom cov neeg ua haujlwm ruaj khov, thiab nthuav dav ntau yam khoom siv.

(5) Kev ncaj ncees ntawm cov khoom zoo.Cov txheej txheem qhia txog cov khoom siv nqus tsev tuaj yeem tsim cov tav txhawb nqa, cov qauv sandwich thiab lwm yam ntxig tib lub sijhawm, uas txhim kho kev ncaj ncees ntawm cov khoom, yog li cov khoom loj xws li lub kaus mom kiv cua, lub nkoj hulls thiab cov qauv superstructures tuaj yeem tsim tau.

(6) Txo kev siv cov khoom siv raw thiab cov neeg ua haujlwm.Hauv tib qho kev teeb tsa, cov resin raug txo los ntawm 30%. Cov khib nyiab tsawg dua, cov resin poob qis dua 5%. Kev tsim khoom siab, ntau dua 50% kev txuag zog piv rau cov txheej txheem teeb tsa tes. Tshwj xeeb tshaj yog nyob rau hauv kev txhaj tshuaj ntawm cov duab loj thiab nyuaj ntawm sandwich thiab cov khoom siv zog, cov khoom siv thiab kev txuag zog tseem ceeb dua. Piv txwv li, hauv kev tsim cov rudders ntsug hauv kev lag luam aviation, tus nqi ntawm kev txo cov fasteners los ntawm 365 raug txo los ntawm 75% piv rau txoj kev ib txwm muaj, qhov hnyav ntawm cov khoom tseem tsis hloov pauv, thiab kev ua tau zoo dua.

(7) Qhov tseeb ntawm cov khoom zoo.Qhov tseeb ntawm qhov ntev (tuab) ntawm cov khoom siv nqus tsev ua cov txheej txheem qhia txog cov tshuaj pleev xim zoo dua li cov khoom siv tes ua. Hauv qab tib qho kev teeb tsa, qhov tuab ntawm cov khoom siv thev naus laus zis nqus tsev ua cov tshuaj pleev xim dav dav yog 2/3 ntawm cov khoom siv tes ua. Qhov sib txawv ntawm cov khoom tuab yog li ± 10%, thaum cov txheej txheem tso tes feem ntau yog ± 20%. Qhov tiaj tiaj ntawm qhov chaw ntawm cov khoom zoo dua li cov khoom siv tes ua. Phab ntsa sab hauv ntawm cov khoom siv hood ntawm cov txheej txheem qhia txog cov tshuaj pleev xim nqus tsev yog du, thiab qhov chaw ntuj tsim cov txheej nplua nuj resin, uas tsis xav tau ntxiv cov txheej sab saum toj. Txo cov neeg ua haujlwm thiab cov ntaub ntawv rau kev xuab zeb thiab pleev xim.

Tau kawg, cov txheej txheem qhia txog cov khoom siv nqus tsev tam sim no kuj muaj qee qhov tsis zoo:

(1) Cov txheej txheem npaj siv sijhawm ntev thiab nyuaj dua.Yuav tsum tau teeb tsa kom zoo, tso cov khoom siv hloov pauv, cov raj hloov pauv, kaw lub tshuab nqus tsev kom zoo, thiab lwm yam. Yog li ntawd, rau cov khoom me me, lub sijhawm ua haujlwm ntev dua li txheej txheem tso tes.

(2) Tus nqi tsim khoom siab dua thiab muaj ntau cov khib nyiab tshwm sim.Cov ntaub ntawv pabcuam xws li lub hnab nqus tsev, qhov chaw hloov pauv, daim ntaub tso tawm thiab lub raj hloov pauv yog cov khoom pov tseg tag nrho, thiab ntau ntawm lawv tam sim no raug xa tuaj, yog li tus nqi tsim khoom siab dua li cov txheej txheem tso tes. Tab sis qhov loj dua cov khoom, qhov sib txawv me dua. Nrog rau qhov chaw ntawm cov ntaub ntawv pabcuam, qhov sib txawv ntawm tus nqi no tau txais me dua thiab me dua. Kev tshawb fawb tam sim no ntawm cov ntaub ntawv pabcuam uas tuaj yeem siv ntau zaus yog kev coj ua ntawm cov txheej txheem no.

(3) Cov txheej txheem tsim khoom muaj qee yam kev pheej hmoo.Tshwj xeeb tshaj yog rau cov khoom loj thiab nyuaj, thaum cov tshuaj resin infusion tsis ua haujlwm, cov khoom yooj yim raug pov tseg.

Yog li ntawd, yuav tsum muaj kev tshawb fawb ua ntej zoo dua, kev tswj hwm cov txheej txheem nruj thiab cov kev ntsuas kho kom zoo kom ntseeg tau tias cov txheej txheem ua tiav.

Peb cov khoom lag luam:

Fiberglass roving, fiberglasswoven roving, cov ntaub pua plag fiberglass, daim ntaub fiberglass mesh,Cov tshuaj polyester tsis muaj zog, vinyl ester resin, epoxy resin, gel txheej resin, pabcuam rau FRP, carbon fiber thiab lwm yam khoom siv raw rau FRP.

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