Dab tsi yog qhov ua rau tsis muaj dej tsis zoo ntawm cov tawv nqaij tawv tawv (CSM) thiab nws tuaj yeem txhim kho li cas?
I. Peb lub cim tseem ceeb ntawm kev ntub dej tsis zoo
Txhawm rau txiav txim siab yog tias ntub dej ntawmchopped strand levua tau raws li cov qauv, ua raws li peb lub ntsiab lus hauv qab no:
1. Kev nkag mus qeeb: Hauv kwv yees li 5 feeb ntawm daim ntawv thov resin, thaj tsam loj ntawm fiber ntau tseem unwetted;
2. Ntau qhov chaw qhuav: Cov kab dawb fiber ntau tshwm rau ntawm qhov chaw txiav tom qab compaction, thiab huab cua npuas yog qhov nyuaj rau tshem tawm;
3. Tsis zoo Adhesion: Delamination yog ib qho yooj yim tom qab kho, lub suab yog hollow thaum tapped, thiab txhua yam khoom yog substandard.
Lub hauv paus ua rau ntawm cov teeb meem no feem ntau yog nyob rau hauv peb yam: cov khoom nws tus kheej, txheej txheem kev tsim kho, thiab ib puag ncig.
II. Plaub Qhov laj thawj rau kev ntub dej tsis zoo
(I) Cov Khoom Siv Nws Tus Kheej: Qhov Chaw ntawm Qhov Teeb Meem
1. Tsis sib haum los yog tsis muaj txiaj ntsig tshuaj Sizing Agents: Tus neeg sawv cev sizing rau ntawm qhov chaw ntawm chopped strand lev yog "choj" txuas cov iav fiber ntau thiab cov resin. Yog hais tias qhov kev xaiv sizing tus neeg saib xyuas zaj duab xis- ua tus neeg sawv cev (xws li PVAc, polyester emulsion) tsis sib haum nrog cov txheej txheem resin, lossis yog tias nws tau khaws cia ntev dhau los lossis raug rau cov dej noo, ua rau cov silane coupling tus neeg sawv cev ua haujlwm tsis zoo, nws yuav ncaj qha txo kev sib raug zoo. Tsis tas li ntawd, cov txheej txheem ziab kom tsis raug thaum lub sij hawm tsim khoom, ua rau tsis txaus cov yeeb yaj kiab tsim lossis kev tsiv teb tsaws thiab poob ntawm tus neeg sawv cev sizing, tseem yuav cuam tshuam rau impregnation nyhuv.
2. Qhov tsis zoo ntawm qhov zoo ntawm cov ntaub qhwv strand lev nws tus kheej: tsis sib npaug ntawm cov khoom siv thaum lub sij hawm tsim khoom, los yog chopped strand ntev thiab qhov hnyav tsis ua raws li cov txheej txheem, yuav ua rau fiber ntau agglomeration, ua rau nws nyuaj rau cov resin nkag mus. Nyob rau tib lub sijhawm, cov ntsiab lus siab alkali ntau dhau hauv cov iav fiber ntau yooj yim hydrolyzes tsim silica colloids, uas adsorb dej zaj duab xis rau ntawm qhov chaw, cuam tshuam cov resin impregnation.
3. Kev xaiv cov resin tsis tsim nyog: Resin viscosity uas siab dhau ua rau cov dej ntws tsis zoo, tiv thaiv kev nkag mus sai rau hauv cov khoob fiber ntau; Lub sij hawm gel tsis txaus ua rau cov resin kho ua ntej txaus impregnation, ua rau ntxov ntxov hardening.
(II) Kev Tsim Kho: Cov ntsiab lus ua haujlwm txiav txim siab qhov kawg tshwm sim
1. Txheej txheej thiab txheej txheej tsis raug: Kev siv cov resin tag nrho ib zaug tom qab qhuav- tso ntau txheej, lossis siv txheej tuab heev, yuav tiv thaiv cov fibers qis los ntawm kev sib cuag cov resin. Ua tsis tiav ntawm txhua txheej thaum tuav tes - nce yuav ntxiab cua npuas ntawm cov fibers, kuj cuam tshuam rau impregnation.
2. Tsis tsim nyog Curing Parameters: Tsis tsim nyog accelerator/initiator ratios, los yog tsawg curing kub heev, yuav ua rau qeeb cov tshuaj tiv thaiv curing thiab ua rau cov resin impregnation lub sij hawm tsis txaus; Kev kub siab heev yuav ua rau kom kho kom zoo, kuj ua rau tsis txaus impregnation.
(III) Ib puag ncig tej yam kev mob: qhov zais qhov cuam tshuam ntawm qhov kub thiab txias
Thaum lub ambient kub yog qis dua 10 degree, cov resin molecular saw txav txo, cov sizing tus neeg ua hauj lwm txo, cov iav fiber ntau hardens, thiab kev tsim kho yuav nyuaj dua; Thaum cov av noo siab tshaj 60%, lub iav fiber ntau yooj yim absorbs ib zaj duab xis dej, cov resin yooj yim whitens, thiab cov nyhuv impregnation yog txo.
(IV) Cia thiab tuav: Kev puas tsuaj thib ob tsis tuaj yeem kwv yees
Thaum lub sij hawm kev thauj mus los thiab khaws cia, tws strand lev tej zaum yuav raug rau ya raws los yog siab, los yog khaws cia rau ncua sij hawm, uas yuav ua rau sizing tus neeg sawv cev inactivation thiab fiber ntau agglomeration, inevitably ua rau impregnation tsis zoo thaum siv.
III. Tsib lub tswv yim txhim kho tseem ceeb
(I) Qhov Chaw Tswj: Xaiv cov ntaub ntawv zoo yog qhov tseem ceeb
1. Precise Matching of Sizing Agents and Resins: For unsaturated polyester resins, prioritize fast-dissolving PVAc or PVAc + polyester emulsion sizing agents for iav fiber chopped strand lev; rau epoxy resins, xaiv cov khoom uas muaj epoxy-raws li silane coupling agents (xws li KH-560); rau cov khoom siv high-end xws li cua turbine blades thiab tsheb qhov chaw, iav fiber ntau tws strand lev nrog polyester + polyurethane composite sizing tus neeg sawv cev tuaj yeem siv, ntsuas qhov ntub dej thiab cov khoom siv tshuab.
2. Kev lees txais nruj ntawm Chopped Strand Mat Zoo: Txheeb xyuas qhov zoo nkauj thiab tsis muaj agglomeration; xyuas kom meej tias cov khoom cov ntaub ntawv thiab lub hauv paus luj ntawm daim ntawv pov thawj ntawm conformity raws li qhov yuav tsum tau. Xav kom cov neeg muag khoom muab cov ntaub ntawv soj ntsuam cov khoom kom ntseeg tau tias cov ntsiab lus ntawm silane coupling tus neeg sawv cev nyob nruab nrab ntawm 0.5% thiab 3%.
3. Optimizing Resin Selection and Proportioning: Prioritize low -viscosity resins, los yog ntxiv ib qho kev tsim nyog ntawm reactive diluent kom txo viscosity. Kho lub sijhawm gel rau 15-45 feeb kom paub meej tias lub sijhawm impregnation txaus. Rau qis- qhov kub thiab txias, ntxiv 1%-2% qis-kub accelerator los hloov cov tshuaj cobalt ntsev.
(II) Kev Tsim Kho Txuj Ci: Ua tib zoo mloog kom paub meej
1. Txheej txheej txheej txheej txheej, txheej txheej - los ntawm - Txheej Compaction: Thaum tuav tes - nce, ua ntej siv cov txheej nyias nyias rau cov pwm saum npoo, tom qab ntawd nteg ib txheej ntawm chopped strand lev, compacting nyob rau hauv ib qho kev taw qhia nrog ib tug roller los yog scraper kom tshem tawm cov npuas npuas. Xyuas kom cov resin yog tag nrho impregnated ua ntej thov txheej tom ntej. Txhua txheej txheej yuav tsum tsawg dua 0.5 hli tuab.
2. Kho cov txheej txheem Curing: Kho cov accelerator piv raws li qhov kub thiab txias. Ua kom cov tshuaj accelerator kom tsim nyog thaum qhov kub thiab txias, thiab txo nws thaum kub siab. Tswj qhov curing kub ntawm 15-25℃. Ib qho insulated shed tuaj yeem tsim tau, thiab cov cua sov hluav taws xob tuaj yeem siv los tswj qhov kub thiab txias kom tsis txhob muaj qhov kub thiab txias.
(III) Kev Tswj Ib puag ncig: Tsim kom muaj kev tsim kho tsim nyog
Saib xyuas qhov kub thiab av noo ua ntej kev tsim kho. Khaws qhov kub siab tshaj 15℃thiab cov av noo qis dua 60%. Nyob rau hauv qis - kub, siab - huab cua av noo, siv dehumidifiers thiab cua kub blowers; ncua kev tsim kho yog tias tsim nyog.
(IV) Kev Tshawb Fawb Txog Kev Tshawb Fawb: Kev zam kev puas tsuaj rau cov ntaub ntawv thib ob
Chopted strand lev yuav tsum tau muab cia rau hauv qhov chaw qhuav, qhov cua, thiab qhov chaw tsaus, tsa tawm hauv av siv cov pallets tshwj xeeb los tiv thaiv kev nqus dej. Thaum qhib, cov khoom yuav tsum tau siv sai thiab nyob rau hauv nws lub neej txee. Ua tib zoo saib xyuas thaum lub sijhawm thauj mus los kom tsis txhob deformation nyob rau hauv siab.
(V) Kev Siv Thaum Muaj Xwm Ceev: Yuav Kho Cov Teeb Meem Li Cas
Yog tias pom muaj impregnation tsis txaus thaum lub sij hawm tsim kho, nres tam sim ntawd, siv ib qho qis -viscosity resin, thiab re-compact. Yog tias cov pob qhuav qhuav lossis delamination tshwm sim tom qab kho, tshem cov khoom tsis zoo, zom lawv, thiab rov- txheej txheej los kho thiab ua kom cov khoom zoo.
IV. Xaus
Tsis zoo impregnation ntawm tws strand lev tsis yog tsuas yog los ntawm cov khoom siv raw, tab sis qhov tshwm sim ntawm ntau yam xws li cov ntaub ntawv, txheej txheem, thiab ib puag ncig. Qhov teeb meem no tuaj yeem daws tau tag nrho los ntawm kev xaiv cov khoom siv zoo los ntawm qhov chaw, ua qauv kev tsim kho kev ua haujlwm, thiab siv kev tswj hwm ib puag ncig zoo. Rau cov neeg nyob hauv kev lag luam fiberglass, impregnation zoo heev tsis tsuas yog txhim kho cov khoom zoo tab sis kuj txo cov nqi rov ua haujlwm thiab txhim kho cov neeg siv khoom txaus siab.
