xov xwm

RTM txheej txheem muaj qhov zoo ntawm kev lag luam zoo, kev tsim qauv zoo, tsis tshua muaj hluav taws xob ntawm styrene, siab qhov tseeb ntawm cov khoom thiab cov khoom zoo nto mus txog qib A.
RTM molding txheej txheem yuav tsum tau ntau qhov loj ntawm pwm. rtm feem ntau siv yin thiab yang kaw cov pwm, yog li qhov kev ua yuam kev loj ntawm cov pwm thiab kev tswj xyuas meej ntawm cov kab noj hniav tuab tom qab kaw cov pwm yog qhov teeb meem tseem ceeb.

1, xaiv cov khoom siv
Yuav kom tswj tau qhov precision ntawm pwm, kev xaiv cov khoom siv raw yog qhov tseem ceeb. Kev tsim tawm ntawmRTM pwmsiv rau hauv cov pwm gel tsho yuav tsum muaj kev cuam tshuam siab toughness, siab kub tsis kam thiab qis shrinkage, feem ntau tuaj yeem siv vinyl ester hom pwm gel tsho.
RTM pwm resin feem ntau kuj yuav tsum tau ua kom muaj cua sov zoo thiab rigidity, qee qhov kev cuam tshuam toughness, shrinkage yog me me los yog zero shrinkage.RTM pwm nrog fiber ntau cov ntaub ntawv yuav siv tau 30g / ㎡ uas tsis yog-alkali nto xav thiab 300g / ㎡ tsis-alkali luv-txiav xav. Nrog 300g / m tsis-alkali luv-txiav xav ntau tshaj 450g / m non-alkali luv-txiav xav ua los ntawm pwm shrinkage yog qis dua, siab dua qhov tseeb.

2, Txheej txheem tswj
Kev xaiv cov ntaub ntawv raw yog tswj qhov loj ntawm RTM pwm thiab kab noj hniav thickness ntawm ib qho tseem ceeb txuas, thiab nyob rau hauv cov pwm tig txheej txheem txhua lub sij hawm kev tswj kom zoo yog txheej txheem tseem ceeb dua. Yog tias cov txheej txheem no tsis tsim nyog, txawm tias cov khoom siv raw ua tau raws li qhov yuav tsum tau ua, nws yog qhov nyuaj rau tig cov pwm nrog qhov tseeb qhov ntev thiab tsim nyog cov kab noj hniav tuab.
Mould tig txheej txheem yuav tsum xub nkag siab qhov tseeb ntawm kev hloov pauv ntoo pwm. Txhawm rau kom ntseeg tau tias qhov tseeb, thaum pib ntawm lub lim ntoo pwm tsim tuaj yeem siv raws li pwm shrinkage tus nqi kom tawm hauv qee qhov nyiaj ntawm cov nyiaj shrinkage. Tsis tas li ntawd, kev saib xyuas yuav tsum tau them rau qhov kev hloov ntawm qhov chaw ntawm cov ntoo pwm kho tiaj tus, ntoo pwm nto caws pliav yuav tsum tau khawb tawm. Nplaim thiab ntoo shrinkage tsis zoo ib yam yuav ua rau lub ntsej muag ntawm fiberglass pwm tsis tiaj tus. Khawb tawm cov caws pliav thiab tshem tawm cov burrs saum npoo, qhov saum npoo ntawm cov pwm yuav tsum tau muab pov tseg, feem ntau yuav tsum tau txhuam 2 ~ 3 zaug. Tom qab lub putty kho tau, siv cov ntawv xuab zeb los txhuam qhov chaw kom txog rau thaum nws ua tau raws li qhov loj thiab cov duab raug.
Ntoo pwm ntau lawm yuav tsum txaus siab siv dag zog, vim hais tias nyob rau hauv dav dav, qhov tseeb qhov seem ntawmFRP pwm thaum kawgnyob ntawm qhov tseeb ntawm cov ntoo pwm. Txhawm rau kom ntseeg tau tias qhov chaw ntawm cov iav fiber reinforced yas pwm yog du thiab huv, tig thawj daim iav fiber reinforced yas pwm, gel txheej txheej siv cov tshuaj tsuag yog tsim nyog.
Txau gelcoat yuav tsum tau them sai sai rau kev kho cov cua ntws ntawm rab phom, kom cov gelcoat resin atomization yog ib yam, tsis qhia hais. Cov phom thiab rab phom yuav tsum nyob sab nraum pwm, kom tsis txhob ua rau lub gel tsho hauv zos dai, cuam tshuam rau qhov zoo ntawm qhov chaw. Tom qab gel txheej txheej yog kho, muab tshuaj txhuam rau saum npoo. Nto xav yuav tsum nyob sab nraum pwm, thiaj li tsis ua rau lub zos gelcoat dai, cuam tshuam rau saum npoo zoo.
Tom qab txheej txheej gel yog kho, muab tshuaj txhuam rau saum npoo, qhov xav tau ntawm qhov chaw yuav tsum tau npog nrog lub tiaj, quav lossis ceg tawv yuav tsum tau txiav thiab txiav. Lo rau saum npoo zoo, txhuam tuaj yeem dipped hauv ib qho me me ntawm cov resin kom ntub los ntawm qhov xav tau, xyuam xim rau kev tswj cov kua nplaum, ob qho tib si tuaj yeem nkag mus rau hauv cov fiber ntau, tab sis tsis ntau dhau. Cov ntsiab lus kua nplaum siab, cov npuas tsis yooj yim kom tshem tawm, thiab ua rau kev kho exothermic loj, loj shrinkage. Nto zoo li txheej resin curing kom khaws npuas, xaiv npuas tsis tuaj yeem txiav los ntawm gel txheej txheej.
Tom qab xaiv cov npuas, tsim nyog sanding, tshem tawm fiberglass burrs thiab tshem tawm cov plua plav ntab, tes muab tshuaj txhuam 300g / m² uas tsis yog-alkali luv-txiav xav, txhua zaus tsuas yog 1 ~ 2 txheej txheej, kom kho tau tom qab exothermic ncov ua ntej koj tuaj yeem muab tshuaj ntxiv. Muab tshuaj txhuam mus rau qhov xav tau tuab, koj tuaj yeem nteg cov yeeb nkab tooj liab, thiab tso cov tub ntxhais thaiv thaiv qhov thaiv. Modulation ntawm iav hlaws resin putty, raws li qhov tso ntawm thermal rwb thaiv tsev core block nplaum, uas yuav tsum tau sau qhov sib txawv ntawm lub thermal rwb thaiv tsev core block.
Tom qab tso, lub iav hlaws putty yuav tsum tau siv kom du qhov sib txawv ntawm qhov chaw ntawm lub rwb thaiv tsev core thaiv. Rwb thaiv tsev tub ntxhais thaiv txheej txheej kho thiab tom qab ntawd muab tshuaj txhuam 3 ~ 4 txheej ntawm kev txiav luv luv, koj tuaj yeem muab cov pwm steel pob txha. Muab cov pob txha steel, cov pob txha pob txha ua ntej annealed kom tshem tawm cov kev ntxhov siab ntawm vuam, thiab cov pob txha steel thiab qhov sib txawv ntawm cov pwm yuav tsum tau ntim kom tiv thaiv covFRPpwm deformation nrog cov pob txha steel.
Tom qab thawj daim pwm raug kho, cov pwm raug tshem tawm, cov npoo ya dav dhau raug tshem tawm, cov pwm kab noj hniav raug ntxuav ntawm cov khib nyiab, thiab daim ntawv siv quav ciab. Lub thickness ntawm daim ntawv siv quav ciab yuav tsum zoo ib yam thiab elongation yuav tsum me me. Daim ntawv siv quav ciab yuav tsum tsis txhob muab qhwv rau hauv cov npuas npuas, thaum muaj cua npuas, nws yuav tsum tau muab tshem tawm thiab rov muab tshuaj txhuam kom paub meej qhov loj ntawm pwm kab noj hniav. Lap pob qij txha yuav tsum tau txiav, thiab qhov sib txawv ntawm cov ntaub ntawv siv quav ciab yuav tsum tau muab sib xyaw nrog cov khoom siv roj hmab los yog roj hmab cement. Tom qab daim ntawv siv quav ciab, lub pwm thib ob tuaj yeem tig tau zoo ib yam li thawj pwm. Cov pwm thib ob feem ntau yog ua tom qab cov gelcoat tau txau lawm, thiab qhov chaw txhaj tshuaj thiab lub qhov cua yuav tsum tau teem caij. Tig lub thib ob ntawm pwm, koj yuav tsum xub tshem tawm cov ya ya, welding pins thiab locking bolts, yuav tsum tau kho tag nrho tom qab demolding.

3, Pwm tshuaj xyuas thiab kho cov kev ntsuas
Tom qab demolding thiab tu, siv roj hmab cement los ntsuas lub thickness ntawm pwm kab noj hniav. Yog tias qhov tuab thiab qhov loj tuaj yeem ua tau raws li qhov yuav tsum tau ua, tom qab kev sib tsoo thiab polishing tiav lawm, RTM pwm yuav tsum tau ua tiav thiab tuaj yeem xa mus rau ntau lawm. Yog tias qhov kev ntsuam xyuas, vim tias cov txheej txheem tswj tsis zoo thiab lwm yam laj thawj tshwm sim los ntawm cov kab noj hniav pwm tsis ua raws li qhov yuav tsum tau ua, cov seem, rov qhib pwm yog qhov kev khuv xim ntau dhau.
Raws li kev paub, tuaj yeem muaj ob txoj kev kho mob:
① scrapped ib qho ntawm cov pwm, rov qhib ib daim;
② siv cov txheej txheem RTM nws tus kheej los kho cov yam ntxwv ntawm cov pwm, feem ntau yog ib daim ntawm cov pwm saum npoo gelcoat txheej chiseled tawm, tso rau ntawmiav fiber reinforced khoom, lwm daim ntawm cov pwm yog affixed rau daim ntawv siv quav ciab, tshuaj tsuag gelcoat, thiab tom qab ntawd cov pwm txhaj tshuaj, yuav tsum kho tom qab ua pwm, tuaj yeem xa mus rau kev siv.