Qhov ntsuas kev ua tau zoo thiab cov qauv ntsuas dab tsi yuav tsum raug sau tseg rau alkali-dawb chopped strand lev?
I. Cov Ntsiab Lus Qhia Txog Kev Ua Tau Zoo: Rau Qhov Tseem Ceeb Ntawm Kev Txiav Txim Cov Khoom Ua Tau Zoo
Kev ua haujlwm ntawmchopped strand levyog txiav txim los ntawm iav fiber ntau, nplaum, thiab specifications. Cov nram qab no rau qhov ntsuas tseem ceeb yuav tsum raug txiav txim siab, vim tias lawv cuam tshuam ncaj qha rau cov khoom lag luam.
1. Gram Nyhav ib cheeb tsam
- Standard Requirements: Kev ntsuas yuav tsum tau ua raws li GB/T 9914.3-2001. Tus qauv tus nqi ntau yog ± 5% txog ± 8%. Piv txwv li, rau 300g / ㎡ tws strand lev, kev kam rau siab ntawm kwv yees li ± 20g raug tso cai.
- Cov Khoom Zoo: Kev sib txawv ntau dhau ntawm gram qhov hnyav yuav ua rau lub thickness tsis sib npaug thiab tsis txaus tensile lub zog nyob rau hauv lub chopped strand lev. Cov khoom xws li roj teeb casings rau lub zog tshiab tsheb thiab fiberglass cia tso tsheb hlau luam yuav tsum nruj tswj qhov hnyav sib txawv kom tsis txhob muaj zog tensile tsis sib xws uas yuav cuam tshuam rau cov khoom zoo.
- Cov Lus Qhia Tshwj Xeeb: 300g thiab 450g feem ntau yog siv hauv fiberglass tes nteg- txheej txheem; 225g thiab 300g feem ntau yog siv rau cov tsheb sab hauv; 450g thiab 600g yog xaiv tau rau siab -requirement corrosion-resistant applications.
2. Lub zog tensile
- Standard Requirements: Kev xeem yuav tsum tau ua raws li GB/T 6006.2. Noj 300g tws strand lev ua piv txwv: longitudinal tensile lub zog yuav tsum muaj ntau tshaj los yog sib npaug rau 100N / 150mm, thiab transverse tensile zog yuav tsum siab tshaj los yog sib npaug rau 80N / 150mm.
- Yam khoom cuam tshuam: Lub zog tsis txaus tuaj yeem ua rau deformation, tawg, thiab lwm yam teeb meem hauv cov khoom kawg. Rau cov khoom uas yuav tsum tau muaj kev cuam tshuam loj, xws li bumpers rau lub tsheb tshiab lub zog thiab fiberglass nkoj decks, nws yog ib qho tseem ceeb uas yuav tau xaiv alkali-dawb chopped strand lev nrog lub hauv paus hnyav dua kom ntseeg tau tias lub zog tensile thiab lwm yam yuav tsum tau ua.
- Qhov txawv tseem ceeb: Alkali-dawb chopped strand lev muaj zog dua li nruab nrab -alkali thiab siab -alkali tws strand lev, ua rau nws haum rau cov ntawv thov uas xav tau lub zog siab.
3. Cov ntsiab lus kub
- Cov qauv yuav tsum muaj: Cov ntsiab lus yuav tsum nyob nruab nrab ntawm 1.8% thiab 8.5%, kuaj raws li GB/T 9914.2-2001.
- Kev cuam tshuam rau qhov zoo: Cov ntsiab lus nplaum ntau dhau ua rau cov adhesion tsis zoo rau cov resins thiab lwm yam tshuaj ntxiv, txo cov khoom cua sov; Cov ntsiab lus tsis tshua muaj nplaum ua rau cov fiberglass nquag tawg thiab ua rau poob tom qab ua tiav.
- Pom zoo xaiv: Rau qhov chaw sab hauv ntawm lub tsheb tshiab lub zog, emulsion- hom chopped strand lev (cov ntsiab lus combustible 3% ~ 5%) yog pom zoo, vim nws yog lint -dawb thiab muaj zog siab; rau fiberglass thiab chav dej fixtures, hmoov-hom tws strand lev (combustible ntsiab lus 5% ~ 7%) yog pom zoo, vim nws yog ntau saj zawg zog thiab haum rau tes nteg- txheej txheem.
4. Cov ntsiab lus noo noo
- Standard Requirements: Powder chopped strand lev yuav tsum muaj cov dej noo tsawg dua los yog sib npaug li 0.20%, thiab emulsion tws strand lev yuav tsum muaj cov dej noo tsawg dua lossis sib npaug li 0.50%. Kev ntsuas yuav tsum tau ua raws li cov ntsuas tau teev tseg hauv GB / T 9914.1-2001.
- Qhov teeb meem tseem ceeb: Cov dej noo ntau dhau tuaj yeem ua rau cov resin kho tsis ruaj khov, ua npuas yooj yim, thiab tsis muaj zog txaus. Yuav tsum tau saib xyuas tshwj xeeb thaum siv hauv qhov chaw ntub dej.
5. Mat Nto Coverability
- Thickness Requirements: Mat deg thickness yuav tsum ntsuas raws li GB/T 20309. Rau cov khoom, cov thicknesses sib thooj yog: 225g ~ 300g Tsawg dua los yog sib npaug rau 4 hli, 300g ~ 450g Tsawg dua los yog sib npaug rau 5 hli, thiab sib npaug li 450g ~ 600g.
- Kev cuam tshuam rau kev ua tau zoo: Kev tiv thaiv tsis zoo tuaj yeem ua rau wrinkling, blistering, thiab delamination thaum molding complex nkhaus nto. Tshwj xeeb tshaj yog rau cov khoom lag luam tsis zoo xws li cov roj teeb pob npog rau cov tsheb tshiab, fiberglass, thiab cov dab da dej, tshwj xeeb yuav tsum tau them nyiaj rau qhov ua tau raws li qhov xav tau ntawm qhov chaw kom ntseeg tau tias tsis muaj seamless, wrinkle -dawb, thiab tawg - pub dawb.
II. Product Test Standards: Lub hauv paus tseem ceeb hauv kev tsim khoom
Kev ntsuam xyuas strand lev yuav tsum tau ua nruj me ntsis raws li GB / T 17470-2007 "Chopted Straight Filament Matte thiab Nruam Filament Matte ntawm iav Fiber". Ib txhij, nws yuav tsum tau txais kev txhawb nqa los ntawm ISO thiab GB / T series cov qauv kom ntseeg tau tias qhov tseeb ntawm cov khoom kuaj tau.
1. Cov khoom tseem ceeb kuaj cov khoom
Chav tsev loj yog kuaj raws li GB / T 9914.3-2001 tus qauv los xyuas seb qhov hnyav sib txawv li cas.
Lub zog tensile raug kuaj raws li GB / T 6006.2-2001 tus qauv los xyuas seb qhov ntev thiab lub zog tensile ua tau raws li cov qauv.
Cov ntsiab lus hluav taws kub tau raug sim raws li GB / T 9914.2-2001 tus qauv txhawm rau xyuas seb tus neeg sawv cev impregnating puas sib haum.
Cov ntsiab lus noo noo yog kuaj raws li GB / T 9914.1-2001 tus qauv los xyuas seb cov khoom thiab cov ntaub ntawv nyoos puas ntub.
Cov tsos mob zoo raug kuaj xyuas los ntawm tus neeg soj ntsuam zoo raws li GB / T 17470-2007 tus qauv rau qhov tsis xws luag.
2. Cov khoom tshwm sim zoo soj ntsuam
- Txawm tias cov khoom puas, muaj qhov, los yog stains.
- Cov xov paj tsis sib xws, cov nplaum tsis zoo muaj qhov tawg.
- Cov khoom yuav tsum tsis muaj creases, wrinkles, thiab impurities.
- Ncaj ntug, nruj yob txoj kab uas hla, tsis muaj looseness.
3. Cov ntsiab lus tseem ceeb ntawm kev kuaj khoom
1. Cov Qauv Yuav Tsum Tau: Randomly xaiv 3-5 yob ntawm tib qhov hnyav los ntawm txhua pawg. Txiav ib qho 100mm × 100mm qauv ntawm txhua yob, hnyav nws, thiab xam qhov nruab nrab qhov hnyav thiab sib txawv.
2. Ib puag ncig yuav tsum tau: Kev ntsuas kub kwv yees li 23 ± 2 degree, av noo ntawm 50% thiab 70%, kom tsis txhob cuam tshuam cov ntaub ntawv raug.
3. Cov khoom siv raug: Qhov tseeb qhov sib npaug yuav tsum siab dua lossis sib npaug ntawm 0.1g, thiab cov khoom siv ntsuas tensile loading tus nqi yuav tsum yog 100mm / min kom paub meej cov ntaub ntawv raug.
III. Daim ntawv thov Cheebtsam ntawm Chopped Strand Mat: Tshiab Zog Tsheb, Fiberglass Khoom, thiab lwm yam.
Choped strand lev feem ntau yog qhia rau nws daim ntawv thov nyob rau hauv lub tsheb thiab fiberglass teb vim nws yooj yim ntawm molding, siab zog, thiab nqi -effectiveness. Kev xaiv meej yog xav tau rau cov xwm txheej sib txawv kom tsis txhob ua tsis tau raws li qhov yuav tsum tau ua thiab kev ua tau zoo.
1. Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob Tshiab: Cov Txheej Txheem Tseem Ceeb rau kev sib tw thiab kev nyab xeeb
- Daim ntawv thov tseem ceeb:
- Cov Txheej Txheem Txheej Txheem: Cov roj teeb ntim cov phaj qis qis, lub hau npog sab sauv, cov phaj tiv thaiv, thiab lwm yam, feem ntau yog rau lub teeb yuag, rwb thaiv tsev zoo, thiab kub tsis kam.
- Cov Cheebtsam npog: Bumper thav duab, fender, spoiler, thiab lwm yam, feem ntau yog rau kev nyab xeeb, cuam tshuam, thiab corrosion kuj.
- Cov ntsiab lus xaiv cov khoom:
- Khoom siv: Alkali-dawb fiberglass, siab zog, zoo rwb thaiv tsev; haum rau cov roj teeb pob, corrosion resistant.
- Specifications: 225 ~ 300g emulsion tws strand lev, haum rau molding thiab SMC txheej txheem, ua tau raws li qhov yuav tsum tau ceev prototyping.
- Kev ua tau zoo: Lub zog tensile Ntau dua lossis sib npaug ntawm 100N / 150mm, moldability Tsawg dua lossis sib npaug li 5mm, ua kom zoo heev haum rau qhov tsis sib xws.
2. Cov Khoom Siv Fiberglass Sector: Ib qho khoom siv tsim nyog rau ntau yam khoom
- Cheeb Tsam Daim Ntawv Thov:
- Chav Dej Fixtures: Bathtubs, da dej tais, vaj huam sib luag washbasins
- Kev Tiv Thaiv Tshuaj Tiv Thaiv: Tshuaj tua kab mob, cov kav dej, cov kav dej txias ntauwd
- Nkoj thiab Chaw Ua Si: Hulls, Deck, Slides, Chairs
- Cov Khoom Siv Hauv Tsev: Skylights, Waterproof Membranes, Fireproof Decorative Panels
- Kev xaiv daim ntawv thov
- Tes Lay- nce Moulding: 300 ~ 450g tws strand lev, haum rau cov khoom lag luam nkhaus
- Corrosion Protection: 600~900g chopped strand mat, used with vinyl ester resin to improve corrosion resistance
- Nto Layer: Paired nrog 30 ~ 50g nto lev los tsim ib tug du nto, zais textures thiab muab ib tug zoo tag
IV. Chopped Strand Mat Daim Ntawv Thov Txheej Txheem: Peb Cov Teeb Meem + Kev daws teeb meem
Vim tsis muaj kev tswj xyuas kev ua haujlwm tsis txaus thaum tsim kho, cov txiaj ntsig tsis zoo tuaj yeem tshwm sim. Tam sim no kuv yuav sau peb yam teeb meem thiab lawv cov kev daws teeb meem.
Teeb meem 1: Bubbling thiab delamination tom qab kev tsim khoom
- Lub ntsiab ua rau:
1. Cov ntaub qhwv strand yog damp, nrog cov dej noo ntau dhau, lossis qhov chaw tsim kho yog ntub, cia cov dej noo nkag mus rau hauv cov resin.
2. Kev siv tshuaj tsis txaus; cov iav fiber ntau tsis yog impregnated tag nrho, ua rau cov chaw qhuav.
3. Fiberboard yog nteg sai heev; txheej tom ntej ntawm iav fiber ntau yog nteg ua ntej txheej dhau los tau solidified.
- Kev daws teeb meem:
1. Txoj Kev Cia: Khaws cov strand mats rau ntawm ib lub thav duab ntoo, tsa tawm hauv av kom tiv thaiv kom tsis txhob ya raws; siv nws kom sai li sai tau tom qab qhib lub ntim los tiv thaiv cov iav fiber ntau kom tsis txhob ntub.
2. Kev tsim kho yuav tsum tau ua: xyuas kom txhua txheej ntawm lev kom meej meej, tsis muaj pob dawb los yog qhuav; ib txheej yuav tsum tsis txhob tuab heev. Tso cov txheej tom ntej tsuas yog tom qab txhua txheej tau gelled. Tso ob txheej ntawm lev ib txhij yog txwv nruj.
3. Kev Ua Haujlwm Tseem Ceeb: Siv lub ntsej muag defoaming rau cov menyuam yaus kom rov nias thiab tshem tawm cua. Siv cov txhuam hniav kom rov siv cov khoom siv defoaming rau cov ces kaum thiab cov npoo nkhaus kom paub meej cov resin thiab iav fiber ntau nkag mus thiab tiv thaiv huab cua.
Teeb meem
2: Ua rau Wrinkling thiab Dimensional Deviations nyob rau hauv Tshiab Zog Tsheb Qhov Chaw
- Cov laj thawj tseem ceeb:
1. Chopped strand lev tsis tuaj yeem haum cov khoom sib xws xws li cov roj teeb pob.
2. Kev sib txawv ntawm qhov hnyav hnyav ua rau muaj kev ntxhov siab tsis sib xws thaum molding, ua rau cov khoom deformation.
3. Qhov sib piv ntawm cov resin tsis raug ua rau kev kho tsis tiav, ua rau tsis muaj qhov tsis zoo.
- Kev daws teeb meem:
1. Kev xaiv: Chopped strand lev nrog me ntsis softness thiab molding thickness Tsawg tshaj los yog sib npaug li 5 hli yog haum rau irregularly puab pwm.
2. Kev soj ntsuam: Xyuas txhua batch rau qhov hnyav deviation Tsawg dua lossis sib npaug ± 5% thiab tensile lub zog loj dua lossis sib npaug rau 100N / 150mm.
3. txheej txheem: nruj me ntsis ua raws li cov resin ratio (1% ~ 2% curing agent), tswj molding kub ntawm 120 ~ 150 degree, thiab tuav lub sij hawm ntau tshaj los yog sib npaug rau 15min.
Teeb meem 3: nthuav tawm kev ntxhib los mos thiab lub zog tsis txaus ntawm cov khoom FRP
- Cov laj thawj tseem ceeb:
1. Tsis muaj cov lev saum npoo tau pw, ua rau cov ntsiab lus ntawm cov khoom tsis txaus (<60%).
2. Tsis zoo dispersion ntawm tws strand lev ua rau clumps fibers, cuam tshuam nto smoothness.
3. Incompatibility styrene solubility ua rau cov resin wetting tsis txaus thiab localized tsis muaj zog. Kev daws:
1. Txheej txheem: Pem txheej txheej ntawm 30 ~ 50g / ㎡ nto lev kom paub meej cov ntsiab lus ntawm cov resin ntau dua lossis sib npaug li 60%.
2. Kev xaiv: Chopped strand lev nrog zoo dispersibility (tsis muaj lumps, tsis muaj fibrous strands), haum rau tes nteg- txheej txheem.
3. Kev Ntsuas: Xaiv hom H / M rau styrene solubility kom paub meej cov resin wetting sai thiab txhim kho tag nrho lub zog.
V. Xaiv Fiberglass Chopped Strand Mat
Lub luag haujlwm tseem ceeb ntawm chopped strand lev yog kom sib npaug molding efficiency thiab txhua yam khoom, ua rau nws tsim nyog rau kev siv hauv ntau yam xws li lub teeb yuag ntawm lub zog tshiab, cov khoom siv fiberglass, thiab tso tsheb hlau luam. Thaum xaiv cov ntaub ntawv, peb lub hauv paus ntsiab lus yuav tsum ua raws li: kev sib txuam, kev ua tau zoo, thiab qhov xwm txheej tsim nyog.
1. Rau molding thiab SMC Cheebtsam nyob rau hauv lub zog tshiab tsheb: Xaiv 225g ~ 300g alkali- dawb tws strand lev, nrog ib tug molding kev pab them nqi tsawg tshaj li los yog sib npaug zos rau 5 hli thiab tensile zog ntau dua los yog sib npaug rau 100N / 150mm.
2. Rau tes nteg-up FRP chav dej fixtures thiab tiv thaiv corrosion: Xaiv 300g ~ 450g hmoov los yog emulsion tws strand lev, ua ke nrog deg lev, los txhim kho nto zoo.
3. Rau cov khoom siv tiv thaiv corrosion tseem ceeb: Xaiv 450g ~ 600g alkali-dawb chopped strand lev, uas yog corrosion-resistant thiab ncua kev pab cuam lub neej.
