Fisheye
① Muaj hluav taws xob zoo li qub nyob rau saum npoo ntawm pwm, tus neeg sawv cev tso tawm tsis qhuav, thiab kev xaiv tus neeg tso tawm tsis raug.
② Lub tsho gel yog nyias dhau thiab qhov kub thiab txias tsis dhau.
③ Gel coated nrog dej, roj, lossis roj stains.
④ Cov qias neeg lossis cov quav ciab hauv cov pwm.
⑤ Tsawg viscosity thiab thixotropic Performance index.
Sagging
① Lub thixotropic Performance index ntawm gel tsho tiv no yog tsawg, thiab lub sij hawm gel yog ntev heev.
② Kev txau ntau dhau ntawm cov gel lub tsho, nto tuab heev, lub taub hau tsis raug lossis txoj kab uas hla me me, siab dhau.
③ Tus neeg sawv cev tso tawm siv rau saum npoo ntawm cov pwm tsis raug.
Lub gloss ntawm cov khoom gel tsho tiv no tsis zoo
① Lub smoothness ntawm cov pwm tsis zoo, thiab muaj plua plav ntawm qhov chaw.
② Cov ntsiab lus qis ntawm tus neeg sawv cev kho, kho tsis tiav, kev kho qis qis, thiab tsis muaj kev kho tom qab.
③ Tsawg ambient kub thiab high humidity.
④ Cov nplaum txheej yog demolded ua ntej kho tag nrho.
⑤ Cov khoom ntim hauv lub tsho gel yog siab, thiab cov ntsiab lus ntawm matrix resin tsawg.
Nto wrinkles ntawm cov khoom
Nws yog ib hom kab mob ntawm cov roj hmab txheej.Yog vim li cas yog tias lub tsho tiv no gel tsis kho tag nrho thiab yog coated nrog resin ntxov dhau.Styrene dissolves ib co ntawm cov gel tsho tiv no, ua o thiab wrinkling.
Muaj cov kev daws teeb meem hauv qab no:
① Txheeb xyuas seb lub thickness ntawm lub gel lub tsho ua tau raws li tus nqi teev (0.3-0.5mm, 400-500g / ㎡), thiab yog tias tsim nyog, ua kom tuab kom tsim nyog.
② Tshawb xyuas cov khoom siv ua haujlwm.
③ Txheeb xyuas tus nqi pib ntxiv thiab qhov sib xyaw ua ke.
④ Xyuas seb qhov sib ntxiv ntawm cov xim puas cuam tshuam rau resin curing.
⑤ tsa lub rooj cob qhia kub rau 18-20 ℃.
Nto pinholes
Thaum cov npuas me me lurk hauv lub tsho gel, pinholes tshwm rau saum npoo tom qab solidification.Plua plav rau saum npoo ntawm pwm tuaj yeem ua rau pinholes.Txoj kev tuav yog raws li nram no:
① Ntxuav cov pwm kom tshem tawm cov plua plav.
② Tshawb xyuas cov viscosity ntawm cov resin, dilute nws nrog styrene yog tias tsim nyog, lossis txo cov thixotropic tus neeg sawv cev siv.
③ Yog tias tus neeg sawv cev tso tawm tsis raug xaiv kom raug, nws tuaj yeem ua rau ntub dej tsis zoo thiab pinholes.Nws yog ib qho tsim nyog los xyuas tus neeg sawv cev tso tawm.Qhov tshwm sim no yuav tsis tshwm sim nrog polyvinyl cawv.
④ Thaum ntxiv cov neeg pib thiab cov xim pleev xim, tsis txhob sib xyaw nrog huab cua.
⑤ Txheeb xyuas qhov nrawm ntawm rab phom txau.Yog hais tias cov tshuaj tsuag ceev heev, pinholes yuav generated.
⑥ Tshawb xyuas lub siab atomization thiab tsis txhob siv nws siab dhau.
⑦ Tshawb xyuas cov qauv resin.Cov neeg pib ntau dhau yuav ua rau ua ntej gel thiab latent npuas.
⑧ Tshawb xyuas seb qib thiab qauv ntawm methyl ethyl ketone peroxide lossis cyclohexanone peroxide puas tsim nyog.
Deg roughness variation
Cov kev hloov nyob rau hauv nto roughness yog manifested raws li speckled me ntsis thiab uneven glossiness.Cov peev txheej muaj xws li kev txav ntxov ntxov ntawm cov khoom ntawm cov pwm los yog tsis txaus tso quav tso tus neeg sawv cev.
Cov txheej txheem overcoming yog raws li nram no:
① Tsis txhob siv cov quav ciab ntau dhau, tab sis cov quav ciab yuav tsum txaus kom ua tiav qhov polishing.
② Xyuas seb tus neeg sawv cev tso tawm cov khoom puas tau kho tag nrho.
Gel tsho tiv no shattered
Kev tawg ntawm cov gel tsho yuav tshwm sim los ntawm kev sib raug zoo ntawm cov gel lub tsho tiv no thiab lub hauv paus resin, los yog ua rau cov pwm thaum lub sij hawm demolding, thiab cov laj thawj tshwj xeeb yuav tsum tau txheeb xyuas kom kov yeej.
① Qhov saum npoo ntawm cov pwm tsis yog polished txaus, thiab cov nplaum txheej yog lo rau pwm.
② Cov ciab muaj qhov tsis zoo thiab kev ua haujlwm zoo, yog li nkag mus rau gel lub tsho tiv no thiab ua rau cov wax polishing puas.
③ Kev sib kis ntawm cov gel lub tsho tiv no cuam tshuam rau qhov adhesion ntawm gel tsho tiv no thiab lub hauv paus cob.
④ Lub sijhawm kho ntawm lub tsho gel yog ntev heev, uas txo cov adhesion nrog lub hauv paus cob.
⑤ Cov khoom siv sib xyaw ua ke tsis yog compact.
Sab hauv pob dawb
Cov pob dawb hauv cov khoom yog tshwm sim los ntawm kev nkag mus tsis txaus ntawm cov iav fiber ntau.
① Thaum lub sijhawm ua haujlwm, cov khoom laminated tsis kho txaus.
② Ua ntej nteg cov ntaub so qhuav thiab qhuav, ces ncuav resin los tiv thaiv impregnation.
③ Tso ob txheej txheej ntawm ib zaug, tshwj xeeb tshaj yog sib tshooj ntawm ob txheej ntawm daim ntaub, tuaj yeem ua rau cov khoom tsis zoo.
④ Cov resin viscosity siab dhau mus rau qhov xav tau.Ib qho me me ntawm styrene tuaj yeem ntxiv, lossis cov viscosity tsawg tuaj yeem siv tau.
⑤ Lub sij hawm gel lub sij hawm luv luv yuav tsum tau compacted ua ntej gel.Qhov ntau npaum li cas ntawm accelerator tuaj yeem raug txo qis, pib lossis polymerization inhibitor tuaj yeem hloov mus txuas ntxiv lub sijhawm gel.
Txheej
Delamination tshwm sim ntawm ob txheej ntawm cov ntaub ntawv sib xyaw, tshwj xeeb tshaj yog nyob nruab nrab ntawm ob txheej ntawm daim phiaj coarse, uas yog feem ntau delamination.Cov laj thawj thiab kev kov yeej yog raws li hauv qab no:
① Kev siv tshuaj tsis txaus.Yuav kom nce tus nqi ntawm cov resin thiab impregnate tusyees.
② Cov iav fiber ntau tsis tas yuav saturated.Cov viscosity resin tuaj yeem raug txo kom tsim nyog.
③ Qhov chaw paug ntawm cov iav fiber ntau (lossis ntaub / hnov).Tshwj xeeb tshaj yog thaum siv thawj txheej kom solidify ua ntej nteg ob txheej, nws yog ib qho yooj yim mus ua stains rau saum npoo ntawm thawj txheej.
④ Thawj txheej ntawm resin txheej yog kho ntau dhau.Nws tuaj yeem txo lub sijhawm kho.Yog tias nws tau kho ntau dhau lawm, nws tuaj yeem ua av ntxhib ua ntej tso ob txheej.
⑤ Yuav tsum muaj ib qho luv luv txiav fiber ntau ntawm ob txheej ntawm daim phiaj coarse, thiab tsis txhob cia ob txheej ntawm daim phiaj coarse nteg mus txuas ntxiv.
Qhov chaw me me
Cov txheej txheej saum npoo ntawm lub tsho gel yog npog nrog me me.Tej zaum nws yuav tshwm sim los ntawm kev tsis zoo ntawm cov pigments, fillers, los yog thixotropic additives, los yog los ntawm grey nto ntawm cov pwm.
① Ntxuav thiab txhuam qhov saum npoo ntawm cov pwm, tom qab ntawd siv lub tsho roj hmab.
② Txheeb xyuas qhov sib xyaw ua haujlwm.
③ Siv peb lub yob grinder thiab lub tshuab ua kom nrawm nrawm kom tawg cov xim zoo.
Xim hloov
Cov xim tsis sib xws lossis cov tsos ntawm cov xim kab txaij.
① Cov xim muaj qhov tsis zoo dispersion thiab ntab.Nws yuav tsum tau muab sib xyaw kom huv si lossis cov xim pleev xim yuav tsum tau hloov.
② Ntau dhau atomization siab thaum txau.Kev kho yuav tsum tau ua kom tsim nyog.
③ Cov tshuaj tsuag phom yog ze rau saum npoo ntawm cov pwm.
④ Cov nplaum nplaum yog tuab heev nyob rau hauv lub dav hlau ntsug, ua rau cov kua nplaum ntws, ua dej, thiab tsis sib xws.Tus neeg sawv cev thixotropic yuav tsum tau nce ntxiv.
⑤ Lub thickness ntawm lub gel tsho tiv no tsis sib xws.Kev ua haujlwm yuav tsum tau txhim kho kom ntseeg tau tias muaj kev pabcuam.
Fiber morphology nthuav tawm
Daim ntawv ntawm cov ntaub iav los yog kev xav tau nthuav tawm rau sab nraud ntawm cov khoom.
① Lub tsho gel yog nyias dhau.Lub thickness ntawm lub gel lub tsho yuav tsum tau nce, los yog saum npoo yuav tsum tau siv raws li kev sib txuas txheej.
② Gel tsho tiv no tsis yog gel, thiab resin thiab iav fiber puag yog coated ntxov dhau.
③ Cov khoom demolding yog ntxov dhau, thiab cov resin tseem tsis tau kho tag nrho.
④ Cov resin exothermic ncov kub yog siab dhau.
Cov koob tshuaj ntawm cov pib thiab cov accelerators yuav tsum raug txo;Los yog hloov qhov pib qhov system;Los yog hloov qhov kev ua haujlwm kom txo cov thickness ntawm txheej txheej txhua zaus.
Nto me qhov chaw
Qhov saum npoo ntawm cov pwm tsis npog nrog lub tsho gel, lossis lub tsho gel tsis ntub rau saum npoo ntawm pwm.Yog tias polyvinyl cawv siv los ua tus neeg sawv cev tso tawm, qhov tshwm sim no feem ntau tsis tshua muaj.Tus neeg sawv cev tso tawm yuav tsum tau kuaj xyuas thiab hloov nrog paraffin wax yam tsis muaj silane lossis polyvinyl cawv.
npuas
Qhov saum npoo nthuav tawm npuas, lossis tag nrho saum npoo muaj npuas.Thaum tom qab kho tom qab demolding, npuas tuaj yeem pom nyob rau lub sijhawm luv luv lossis tshwm sim hauv ob peb lub hlis.
Tej yam tshwm sim tej zaum yuav yog vim huab cua los yog cov kuab tshuaj nyob nruab nrab ntawm cov gel tsho tiv no thiab substrate, los yog kev xaiv tsis raug ntawm cov tshuab resin los yog cov ntaub ntawv fiber ntau.
① Thaum npog, cov ntaub los yog ntaub yuav tsis ntub nrog cov resin.Nws yuav tsum tau zoo dua dov thiab soaked.
② Cov dej los yog cov tshuaj ntxuav tu tau paug cov nplaum nplaum.Thov nco ntsoov tias cov txhuam thiab cov chais siv yuav tsum qhuav.
③ Kev xaiv tsis raug ntawm cov pib thiab kev siv tsis raug ntawm cov pib kub kub.
④ Kev siv kub ntau dhau, raug cov dej noo lossis tshuaj yaig.Yuav tsum tau siv cov txheej txheem sib txawv.
Kov los yog tawg
Tam sim ntawd tom qab solidification los yog ob peb lub hlis tom qab, nto tawg thiab poob ntawm gloss yog pom ntawm cov khoom.
① Lub tsho gel yog tuab heev.Nws yuav tsum tau tswj tsis pub dhau 0.3-0.5 hli.
② Kev xaiv cov resin tsis raug lossis tsis raug pib ua khub.
③ Ntau dhau styrene nyob rau hauv lub gel tsho tiv no.
④ Tshem tawm ntawm cov resin.
⑤ Kev sau ntau dhau rau hauv cov resin.
⑥ Cov khoom lag luam tsis zoo lossis pwm tsim ua rau muaj kev ntxhov siab sab hauv thaum siv khoom.
Lub hnub qub zoo li tawg
Cov tsos ntawm lub hnub qub zoo li cov kab nrib pleb hauv lub tsho gel yog tshwm sim los ntawm kev cuam tshuam rau sab nraub qaum ntawm cov khoom laminated.Peb yuav tsum tau hloov mus siv gel tsho tiv no nrog zoo elasticity los yog txo lub thickness ntawm lub gel tsho tiv no, feem ntau tsawg tshaj li 0.5 hli.
Cov cim dab dej
Cov dents yog tsim nyob rau sab nraum qab ntawm tav los yog ntxig rau vim resin curing shrinkage.Cov khoom siv laminated tuaj yeem raug kho ib nrab ua ntej, thiab tom qab ntawd cov tav, inlays, thiab lwm yam tuaj yeem muab tso rau saum toj mus txuas ntxiv.
Dawb hmoov
Thaum lub sij hawm ib txwm ua hauj lwm lub neej ntawm cov khoom, muaj ib tug nyiam rau whitening.
① Lub tsho tiv no gel tsis kho tag nrho.Cov txheej txheem kho thiab qhov ntau npaum ntawm cov pib thiab cov accelerators yuav tsum tau kuaj xyuas.
② Kev xaiv tsis raug lossis siv ntau dhau ntawm cov fillers lossis pigments.
③ Resin formula tsis haum rau cov kev siv uas yuav tsum tau ua.
Gel tsho tiv thaiv pwm
Ua ntej lub substrate resin coated, tej zaum cov gel tsho tiv no twb tawm ntawm pwm, tshwj xeeb tshaj yog nyob rau ntawm lub ces kaum.Feem ntau tshwm sim los ntawm condensation ntawm styrene volatiles nyob rau hauv qab ntawm pwm.
① Teem lub pwm txoj hauj lwm kom tso cai rau styrene vapor khiav, los yog siv lub tshuab nqus tsev tsim nyog tshem tawm styrene vapor.
② Tsis txhob siv cov gel tsho loj heev.
③ Txo tus nqi pib siv.
Daj
Nws yog qhov tshwm sim uas lub tsho gel hloov daj thaum raug tshav ntuj.
① Thaum lub sijhawm ua haujlwm, cov av noo siab dhau los lossis cov khoom tsis qhuav.
② Kev xaiv cov resin tsis raug.Resin uas yog UV ruaj khov yuav tsum tau xaiv.
③ Lub tshuab benzoyl peroxide amine pib siv.Lwm qhov kev siv hluav taws xob yuav tsum tau siv los hloov.
④ Undercuring ntawm cov ntaub ntawv laminated.
Nto nplaum
Ua los ntawm qhov chaw undercooling.
① Tsis txhob tso rau hauv qhov chaw txias thiab ntub.
② Siv cov khoom cua qhuav rau txheej txheej kawg.
③ Yog tias tsim nyog, qhov ntau npaum ntawm cov pib thiab cov accelerators tuaj yeem nce ntxiv.
④ Ntxiv paraffin rau saum npoo resin.
Deformation los yog concurrent discoloration
Deformation lossis discoloration feem ntau tshwm sim los ntawm kev tso cua sov ntau thaum kho.Cov koob tshuaj ntawm cov neeg pib thiab cov accelerators yuav tsum tau hloov kho, lossis cov txheej txheem pib sib txawv yuav tsum tau siv los hloov.
Cov khoom deforms tom qab raug tshem tawm ntawm pwm
① Premature demolding thiab tsis txaus solidification ntawm cov khoom.
② Kev txhawb nqa tsis txaus hauv cov khoom tsim yuav tsum tau txhim kho.
③ Ua ntej demolding, lub tsho tiv no nrog cov nplua nuj resin txheej los yog txheej txheej resin kom ua tiav qhov sib npaug nrog cov nplaum txheej.
④ Txhim kho cov qauv tsim ntawm cov khoom thiab them nyiaj rau deformation.
Tsis txaus hardness thiab tsis zoo rigidity ntawm cov khoom
Nws tuaj yeem yog vim qhov kho tsis txaus.
① Txheeb xyuas seb qhov ntau npaum li cas ntawm cov pib thiab cov accelerators tsim nyog.
② Tsis txhob tso rau hauv qhov chaw txias thiab ntub.
③ Khaws cov ntaub fiberglass los yog fiberglass ntaub nyob rau hauv ib qho chaw qhuav.
④ Xyuas seb cov iav fiber ntau puas txaus.
⑤ Tom qab kho cov khoom.
Kev kho cov khoom puas
Qhov kev puas tsuaj saum npoo thiab qhov tob ntawm kev puas tsuaj tsuas yog nyob rau hauv cov nplaum txheej lossis thawj txheej txheej.Cov kauj ruam kho yog raws li nram no:
① Tshem tawm cov khoom xoob thiab tawm, ntxuav thiab qhuav qhov chaw puas, thiab tshem cov roj.
② txhuam hauv ib qho me me nyob ib ncig ntawm qhov chaw puas.
③ Npog qhov chaw puas thiab hauv av nrog thixotropic resin, nrog lub thickness ntau dua li qub, kom yooj yim shrinkage, sib tsoo, thiab polishing.
④ Npog qhov chaw nrog iav ntawv los yog zaj duab xis los tiv thaiv huab cua.
⑤ Tom qab kho, tshem cov iav ntawv los yog tev tawm zaj duab xis, thiab txhuam nws nrog cov ntawv tsis muaj dej tsis zoo.Ua ntej siv 400 grit sandpaper, tom qab ntawd siv 600 grit sandpaper, thiab ua tib zoo zom kom tsis txhob ua rau lub tsho gel.Tom qab ntawd siv cov kev sib txhuam zoo los yog hlau polishing.Thaum kawg, siv quav ciab thiab polish.
Post lub sij hawm: Feb-18-2024
