Carbon Fiber SMC Moulding txheej txheem
Nov 08, 2024
Cov lus qhia tseem ceeb: Carbon fiber SMC yog ib daim ntawv molding yas tsim los ntawm kev txiav carbon fiber, matrix resin, additives thiab lwm yam ntaub ntawv raws li ib tug tej yam piv, siv kev molding ua cov khoom raws li ib tug tej yam txheej txheem.
Ib Carbon Fiber SMC molding Txheej txheem cej luam
01. Carbon Fiber SMC
SMC (lub npe ntawm Sheet Moulding Compound, uas yog, daim ntawv molding yas), carbon fiber SMC yog ib daim ntawv molding yas tsim los ntawm luv carbon fiber, matrix resin, additives thiab lwm yam ntaub ntawv raws li ib tug tej yam piv, siv kev molding ua khoom raws li ib qho txheej txheem infiltration.
02. Carbon Fiber SMC Moulding
Hais txog cov ntawv carbon fiber SMC raws li cov khoom loj, cov duab, tuab, qhov hnyav thiab lwm yam kev xav tau ntawm cov khoom siv txiav, thiab tom qab ntawd cov khoom txiav tau muab tso rau hauv cov kab noj hniav kub, raws li cov txheej txheem ua ntej txheej txheem molding cov txheej txheem kho molding txheej txheem. ;
SMC molding txheej txheem muaj ntau yam zoo, xws li nws muaj kev lag luam yooj yim, yooj yim rau kev ua tiav automation, luv luv ntau lawm, tsim nto du qauv complex khoom, thiab lwm yam., tuaj yeem kos cov hlau molding, tsis tshua muaj pov tseg, ntxiv rau daim ntawv thov carbon fiber. SMC molding txheej txheem kom tau txais cov khoom, nws cov kev ua tau zoo kuj zoo heev: Cov khoom siv zoo heev, thermal stability, tshuaj corrosion kuj, cua sov tsawg shrinkage thiab tsis tshua muaj dej nqus.
2.Carbon Fiber SMC Moulding txheej txheem
01 Kev tshuaj xyuas cov khoom
Qhov zoo ntawm cov ntawv carbon fiber SMC muaj kev cuam tshuam zoo rau cov txheej txheem molding thiab cov khoom zoo. Yog li ntawd, nws yog qhov yuav tsum to taub cov khoom zoo ua ntej nias, fiber ntau cov ntsiab lus, zaj duab xis stripping, thiab seb cov ntaub ntawv puas tas,
seb cov fiber ntau impregnation yog qhov zoo, tsis muaj impurities, txawm tias lub npog zaj duab xis puas, cov khoom hardness thiab zoo uniformity.
02 Cov khoom txiav
Cov ntaub ntawv thawed rau saum npoo ntawm lub hnab PE yam tsis muaj dej pos huab thiab tom qab ntawd txiav, raws li cov qauv ntawm cov khoom zoo, qhov chaw pub mis, cov txheej txheem los txiav txim seb cov duab thiab qhov loj ntawm daim ntawv txiav. Qhov luaj li cas yuav tsum yog 70% -100% ntawm qhov projected cheeb tsam ntawm qhov chaw ntawm cov khoom. Txhawm rau tiv thaiv kev ua qias tuaj ntawm sab nraud impurities, cov yeeb yaj kiab sab saud thiab sab qis raug tshem tawm ua ntej kev thauj khoom, thiab thaj chaw ua haujlwm raug ntxuav kom tsis txhob muaj lub cev txawv teb chaws.
03 Kho cov xovxwm tsis
① Feem ntau suav nrog "siab", "temperature" thiab "forming time", uas yog txiav txim siab raws li cov khoom thickness, cov khoom yuav tsum tau, pwm pwm, thiab lwm yam.
② Kev teeb tsa pwm yuav tsum yog kab rov tav, thiab xyuas kom meej tias qhov chaw teeb tsa nyob hauv nruab nrab ntawm lub rooj xovxwm;
04 Ntxuav cov pwm
① Txhawm rau ntxuav cov pwm kom huv, thiab coated tso tawm tus neeg sawv cev, ua ntej ntxiv cov khoom siv huv si los so tus neeg sawv cev tso tawm, thiaj li tsis cuam tshuam rau cov khoom zoo. Rau cov pwm tshiab, cov roj yuav tsum tau muab tshem tawm ua ntej siv.
② Kub lub pwm los ntawm kaw lub pwm;
05 Paub meej tias pwm kub
① Qhib cov pwm, siv tus pas ntsuas kub sib cuag los ntsuas qhov kub thiab txias ntawm cov pwm kab noj hniav (Ceeb toom: ua ntej, tom qab, sab laug, nruab nrab thiab sab xis, ntsuas ob peb lub ntsiab lus kom paub meej tias cov pwm saum npoo kub ncav cuag cov khoom xav tau saum toj no. nias kub, cov pwm tseem ceeb kub yog qis dua pwm kab noj hniav txog 5 degrees);
② Yog tias qhov ntsuas kub tsis ncav cuag, tos kom cov pwm ua kom sov ntxiv;
③ Yog tias qhov kub thiab txias, cov tshuaj tsuag tso tawm mus rau cov pwm sab saud thiab qis dua.
06 Txheeb xyuas qhov pub mis thiab thaj chaw
① Pub nqi: tus nqi pub mis ntawm txhua yam khoom tuaj yeem xam raws li cov qauv hauv qab no thaum thawj zaug nias: pub tus nqi=cov khoom ntim * ntom 1.5g / c square meters;
②Kev pub mis: qhov loj ntawm qhov chaw pub mis ncaj qha cuam tshuam rau qhov ntom ntawm cov khoom, qhov kev ncua deb ntawm cov khoom thiab qhov zoo ntawm cov khoom, uas muaj feem xyuam rau SMC ntws thiab curing yam ntxwv, cov khoom yuav tsum tau ua, pwm qauv thiab thiaj li. ntawm. Qhov chaw pub mis dav dav yog 70%-100%. Qhov me me dhau lawm yuav ua rau kev taw qhia fiber ntau vim cov txheej txheem ntev dhau, txo lub zog, nce qib ntawm corrugation, thiab txawm tias tsis tuaj yeem sau cov pwm kab noj hniav;
③ Pub txoj hauj lwm: pub txoj hauj lwm thiab txoj kev ncaj qha cuam tshuam rau cov tsos, lub zog thiab ncaj qha ntawm cov khoom. Raws li ib txwm muaj, qhov chaw pub khoom ntawm cov khoom yuav tsum nyob nruab nrab ntawm cov pwm kab noj hniav. Rau cov khoom lag luam asymmetric complex, txoj haujlwm pub mis yuav tsum xyuas kom meej tias cov khoom ntws mus txog tag nrho qhov kawg ntawm cov pwm tsim kab noj hniav tib lub sijhawm thaum tsim.
07 Kub kub thiab kub siab molding
Thaum cov khoom thaiv rau hauv pwm kab noj hniav, pib lub tshuab, cov xovxwm sai sai. Thaum cov pwm pwm sab saud sib phim, maj mam siv qhov xav tau molding siab, tom qab lub sijhawm ntawm kev txuag hluav taws xob thiab kev txuag siab, cov khoom molding xaus. Cov txheej txheem molding yuav tsum tsim nyog raws li cov khoom siv ua ke nrog cov xwm txheej ntawm cov xovxwm.
① molding kub:
Cov theem ntawm molding kub nyob ntawm qhov system curing ntawm cov resin paste, thickness ntawm cov khoom, ntau lawm efficiency thiab complexity ntawm cov khoom qauv. Lub molding kub yuav tsum xyuas kom meej qhov kev vam meej ntawm tus ntoo khaub lig-linking cov tshuaj tiv thaiv tshwm sim los ntawm lub curing system, thiab ua tiav curing tiav. Lub molding kub ntawm carbon fiber SMC yog feem ntau ntawm 130-140 degree C.
Feem ntau hais lus, molding kub xaiv rau cov khoom uas loj thickness yuav tsum qis tshaj qhov uas rau nyias-walled cov khoom, uas yuav tiv thaiv kom txhob muaj cua sov tsub zuj zuj nyob rau hauv cov khoom tuab los ntawm qhov kub thiab txias. Qhov nce ntawm molding kub tuaj yeem txo lub sijhawm kho;
Ntawm qhov tsis sib xws, thaum lub molding kub txo, lub sij hawm curing sib raug yuav tsum tau ncua. Qhov kub molding yuav tsum raug xaiv nyob rau hauv qhov sib npaug ntawm qhov siab tshaj plaws curing ceev thiab qhov zoo tshaj plaws molding mob.
② Kev tsim siab
SMC molding siab sib txawv nrog cov qauv khoom, cov duab, qhov loj thiab SMC thickening degree. Cov khoom uas muaj cov duab yooj yim yuav tsum tau muaj siab tsawg, thiab cov khoom uas muaj cov duab complex xav tau ntau lub siab. Qhov siab dua qhov thickening degree ntawm SMC, ntau dua qhov molding siab yuav tsum tau, thiab cov khoom uas muaj kev ua tau zoo thiab smoothness yuav tsum tau ntau dua molding siab thaum tsim. Hauv luv luv, kev txiav txim siab ntawm molding siab yuav tsum xav txog ntau yam. Feem ntau, molding siab ntawm carbon fiber SMC yog nyob nruab nrab ntawm 10-25Mpa
③ Lub sijhawm molding:
Lub sijhawm kho (tseem hu ua lub sijhawm tuav) ntawm carbon fiber SMC ntawm molding kub yog cuam tshuam nrog nws cov xwm thiab curing system, molding kub, khoom thickness thiab xim. Lub sij hawm molding ntawm carbon fiber SMC feem ntau yog nyob nruab nrab ntawm 10-15 feeb.
Txij li thaum SMC yog qhov kev kho mob ceev ceev, nws yog ib qho tseem ceeb rau cov xovxwm kaw sai. Yog tias qhov kaw ntawm cov xovxwm qeeb dhau tom qab pub mis, nws yog ib qho yooj yim rau precure thaj ua rau thaj ntawm cov khoom, los yog tsim cov khoom tsis muaj, los yog qhov loj heev.
Nyob rau hauv lub realization ntawm ceev ceev kaw nyob rau tib lub sij hawm, qhov kawg ntawm cov xovxwm stroke yuav tsum tau ua tib zoo kho pwm kaw ceev, pwm nyob rau hauv qhov kev ncua deb ntawm lub kaw ntawm ib tug tej yam kev ncua deb, qeeb lub kaw ceev, conducive rau pa.
Demoulding thiab saib xyuas
① Qhib lub siab tuag maj mam, thiab paub meej tias cov khoom puas tau daig tom qab nce mus txog 10mm. Tom qab paub tseeb tias cov khoom tseem nyob rau hauv qis tuag, lub Upper tuag tuaj yeem txav mus rau sab sauv txwv. Qhib lub tshuab tuag saum toj kawg nkaus, maj mam nqa cov khoom tawm;
② Txheeb xyuas qhov zoo ntawm cov khoom, pom cov khoom ploj, av, qhov cua, cov xov paj qhuav, thiab lwm yam., xws li tsis muaj xim xav tau ntawm cov khoom yuav nchuav cov ntug rawg tuaj yeem ua tiav cov khoom tsim.
