xov xwm

Cov txheej txheem RTM muaj qhov zoo ntawm kev lag luam zoo, kev tsim qauv zoo, kev hloov pauv tsawg ntawm styrene, qhov tseeb ntawm cov khoom thiab qhov zoo ntawm qhov chaw mus txog qib A.
Cov txheej txheem molding RTM xav tau qhov loj ntawm cov pwm kom raug dua. Feem ntau rtm siv yin thiab yang los kaw cov pwm, yog li qhov yuam kev ntawm cov pwm thiab kev tswj hwm qhov tuab ntawm qhov pwm tom qab kaw cov pwm yog qhov teeb meem tseem ceeb.

1, Kev xaiv khoom siv
Yuav kom tswj tau qhov tseeb ntawm cov pwm, kev xaiv cov khoom siv raw yog ib qho tseem ceeb. Kev tsim covRTM pwmCov txheej txheej gel siv rau hauv pwm yuav tsum muaj qhov cuam tshuam siab, tiv taus kub siab thiab shrinkage qis, feem ntau siv tau vinyl ester hom pwm gel txheej.
Feem ntau, RTM pwm resin kuj xav tau kev tiv thaiv cua sov zoo thiab rigidity, qee qhov kev cuam tshuam toughness, shrinkage me me lossis ze rau xoom shrinkage. RTM pwm nrog cov khoom siv fiber reinforcement siv tau 30g / ㎡ non-alkali surface felt thiab 300g / ㎡ non-alkali short-cut felt. Nrog 300g / m non-alkali short-cut felt dua 450g / m non-alkali short-cut felt ua los ntawm pwm shrinkage qis dua, qhov tseeb dua.

2, Kev tswj cov txheej txheem
Kev xaiv cov khoom siv raw yog los tswj qhov loj ntawm RTM pwm thiab qhov tuab ntawm qhov txuas tseem ceeb, thiab txhua lub sijhawm hauv cov txheej txheem tig pwm kev tswj xyuas zoo yog qhov tseem ceeb dua. Yog tias qhov kev tswj xyuas txheej txheem no tsis tsim nyog, txawm tias cov khoom siv raw ua tau raws li qhov yuav tsum tau ua, nws nyuaj rau tig pwm nrog qhov loj me thiab qhov tuab ntawm qhov tsim nyog.
Cov txheej txheem tig pwm yuav tsum xub nkag siab txog qhov tseeb ntawm cov pwm ntoo hloov pauv. Yuav kom ntseeg tau tias muaj qhov tseeb, thaum pib ntawm kev tsim pwm ntoo lim dej tuaj yeem siv raws li qhov nrawm ntawm cov pwm kom tawm qee qhov nyiaj ntawm kev ntswj. Tsis tas li ntawd, yuav tsum tau them sai sai rau qhov hloov pauv ntawm qhov chaw kho pwm ntoo kom tiaj tus, qhov caws pliav ntawm qhov chaw pwm ntoo yuav tsum tau khawb tawm. Cov caws pliav thiab cov ntoo tsis sib xws yuav ua rau qhov chaw ntawm cov pwm fiberglass tsis tiaj tus. Khawb cov caws pliav thiab tshem tawm cov burrs ntawm qhov chaw, qhov chaw ntawm cov pwm ntoo yuav tsum tau khawb nrog kev kho putty, feem ntau yuav tsum tau khawb 2 ~ 3 zaug. Tom qab putty kho, siv ntawv xuab zeb los txhuam qhov chaw kom txog thaum nws ua tau raws li qhov loj me thiab cov duab raug.
Kev tsim cov pwm ntoo yuav tsum txaus siab siv zog, vim tias feem ntau, qhov tseeb ntawm qhov ntev ntawmFRP pwm thaum kawgnyob ntawm qhov tseeb ntawm cov pwm ntoo. Yuav kom ntseeg tau tias qhov chaw ntawm cov iav fiber reinforced yas pwm yog du thiab huv, tig thawj daim ntawm cov iav fiber reinforced yas pwm, txheej gel txheej siv txoj kev tsuag yog qhov tsim nyog dua.
Cov tshuaj tsuag gelcoat yuav tsum tau ua tib zoo saib xyuas kev kho qhov cua ntawm rab phom, kom cov gelcoat resin atomization sib xws, tsis pom cov khoom me me. Phom tsuag thiab rab phom yuav tsum nyob sab nraum pwm, kom tsis txhob ua rau cov gel txheej hauv zos dai, cuam tshuam rau qhov zoo ntawm qhov chaw. Tom qab cov txheej gel txheej kho lawm, muab cov ntaub nplaum rau saum npoo. Cov ntaub nplaum saum npoo yuav tsum nyob sab nraum pwm, kom tsis txhob ua rau cov gelcoat hauv zos dai, cuam tshuam rau qhov zoo ntawm qhov chaw.
Tom qab cov txheej gel txheej kho lawm, muab cov ntaub nplaum rau saum npoo, cov ntaub nplaum saum npoo yuav tsum tau npog nrog tiaj tus, tais lossis lub duav yuav tsum tau txiav thiab txiav. Muab ib daim ntaub nplaum zoo rau saum npoo, txhuam tuaj yeem muab tso rau hauv me me ntawm cov resin kom ntub los ntawm cov ntaub nplaum saum npoo, them sai sai rau kev tswj hwm ntawm cov kua nplaum, ob qho tib si kom nkag mus rau hauv cov fiber, tab sis tsis txhob ntau dhau. Cov kua nplaum ntau, cov npuas tsis yooj yim tshem tawm, thiab ua rau kev kho exothermic loj, shrinkage loj. Cov txheej txheej resin kho kom khaws cov npuas, khaws cov npuas tsis tuaj yeem txiav los ntawm cov txheej gel txheej.
Tom qab xaiv cov npuas dej, xuab kom zoo, tshem cov fiberglass burrs thiab tshem tawm cov hmoov av ntab, tes-muab tshuaj 300g / m² tsis-alkali luv luv-txiav felt, txhua zaus tsuas yog 1 ~ 2 txheej ntawm cov tshuaj nplaum, kom kho tom qab exothermic ncov ua ntej koj tuaj yeem txuas ntxiv mus muab tshuaj nplaum. Muab tshuaj nplaum rau qhov tuab xav tau, koj tuaj yeem tso cov yeeb nkab tooj liab, thiab tso cov rwb thaiv tsev tseem ceeb. Kev hloov kho ntawm cov hlaws dai iav resin putty, ua qhov tso ntawm cov rwb thaiv tsev tseem ceeb nplaum, uas los sau qhov sib txawv ntawm cov rwb thaiv tsev tseem ceeb thaiv.
Tom qab tso, yuav tsum siv cov iav hlaws putty los ua kom qhov sib txawv ntawm qhov chaw ntawm lub thaiv rwb thaiv tsev. Txheej thaiv rwb thaiv tsev kho thiab tom qab ntawd muab 3 ~ 4 txheej ntawm cov ntaub luv luv, koj tuaj yeem muab cov pwm hlau pob txha. Muab cov hlau pob txha, cov hlau pob txha ua ntej annealed kom tshem tawm kev ntxhov siab vuam, thiab cov hlau pob txha thiab qhov sib txawv ntawm cov pwm yuav tsum tau sau kom tiv thaivFRPdeformation ntawm cov hlau nrog rau cov hlau tsis xeb.
Tom qab thawj daim pwm kho lawm, cov pwm raug tshem tawm, cov ntug ya ntau dhau raug tshem tawm, lub qhov pwm raug ntxuav kom huv si, thiab daim ntawv ciab raug siv. Qhov tuab ntawm daim ntawv ciab siv yuav tsum sib npaug thiab qhov ntev yuav tsum me me. Daim ntawv ciab yuav tsum tsis txhob qhwv rau hauv cov pa npuas, thaum muaj cov pa npuas, nws yuav tsum raug tshem tawm thiab rov muab tshuaj dua kom ntseeg tau tias qhov loj ntawm lub qhov pwm. Cov pob qij txha yuav tsum raug txiav, thiab qhov sib txawv ntawm cov ntawv ciab yuav tsum tau sib npaug nrog putty lossis roj hmab cement. Tom qab daim ntawv ciab raug siv, pwm thib ob tuaj yeem tig tau tib yam li pwm thawj zaug. Pwm thib ob feem ntau yog ua tom qab gelcoat tau txau, thiab cov qhov txhaj tshuaj thiab cov qhov cua yuav tsum tau teeb tsa. Tig daim pwm thib ob, koj yuav tsum tshem tawm cov ntug ya ua ntej, vuam cov pins thiab cov ntsia hlau xauv, kom kho tag nrho tom qab demolding.

3, Kev tshuaj xyuas pwm thiab kev kho kom zoo
Tom qab rhuav thiab ntxuav, siv cov roj hmab cement los ntsuas qhov tuab ntawm qhov pwm. 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 raug tig kom zoo thiab tuaj yeem xa mus rau ntau lawm. Yog tias qhov kev sim, vim yog kev tswj hwm cov txheej txheem tsis zoo thiab lwm yam laj thawj uas tshwm sim los ntawm qhov pwm tsis ua tau raws li qhov yuav tsum tau ua, cov khoom seem, rov qhib pwm yog qhov tu siab heev.
Raws li kev paub dhau los, muaj ob txoj kev kho mob:
① muab ib qho pwm pov tseg, 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 nto gelcoat txheej chiseled tawm, tso rau ntawmcov khoom siv fiberglass reinforced, lwm daim ntawm cov pwm yog affixed rau ntawm daim ntawv ciab, tshuaj tsuag gelcoat, thiab tom qab ntawd cov pwm txhaj tshuaj, kom kho tom qab cov pwm ua tiav, tuaj yeem xa mus rau qhov siv.