Cov ntsiab cai thiab kev siv ntawm tws strand lev
Txoj Cai Ua Haujlwm
Kev tsim ntawmchopped strand lev(CSM) cuam tshuam nrog txiav iav fiber ntau filaments (los yog untwisted roving) rau hauv 50 hli ntev filaments siv lub cutter, uas yog ces random muab tso rau ib tug stainless hlau mesh siv los ua ib tug lev. Cov tawv nqaij ntuag raug sib koom ua ke los ntawm kev txau cov nplaum thiab / lossis cov tshuaj tsuag dej thiab siv cov hmoov nplaum nplaum, ua raws li siab - kub kom qhuav thiab txias los ua emulsion -raws li los yog hmoov CSM.
Cov khoom siv raw
Cov iav feem ntau siv hauv cov khoom siv fiberglass yog calcium alumina borosilicate nrog cov ntsiab lus alkali tsawg dua ib feem pua. Nws yog feem ntau hu ua "E" hom iav vim tias nws yog thawj zaug tsim rau hluav taws xob rwb thaiv tsev.
Kev tsim cov iav fiber ntau yog tsim cov iav molten los ntawm lub cub tawg los ntawm lub tes tsho platinum uas muaj ntau qhov me me los tsim cov iav filaments. Cov filaments siv rau kev lag luam daim ntaub ntawv yog feem ntau ntawm 9 thiab 15 micrometers nyob rau hauv txoj kab uas hla. Ua ntej yuav sib sau ua ke rau hauv fibers, cov filaments yog coated nrog ib tug emulsion. Cov fibers muaj zog heev -lub zog tensile tshwj xeeb yog siab. Lawv kuj muaj cov tshuaj lom neeg zoo thiab cov dej noo tsis kam, cov khoom siv hluav taws xob zoo, tiv taus cov kab mob lom, thiab tsis yog-flammable, nrog rau qhov melting point ntawm 1500℃-kev ua tau zoo ntawm cov khoom siv yas. Cov iav fibers tuaj yeem siv ntau txoj hauv kev: chopped rau hauv luv luv ("txiav strands"); aggregated rau hauv xoob khi hlua ("rovings"); woven rau hauv ntau yam ntaub; thiab tsim los ntawm kev sib tw thiab ob npaug ntawm cov xov paj kom tau txais cov hlua txuas ntxiv. Hauv tebchaws Askiv, cov khoom siv iav fiber ntau siv ntau tshaj plaws yog tws strand lev, uas yog tsim los ntawm kev txiav iav fiber ntau rau hauv kwv yees li 50 hli ntev thiab tuav lawv ua ke hauv daim ntawv lev siv polyvinyl acetate lossis polyester binders. Qhov hnyav ntawm qhov sib tsoo strand lev yog los ntawm 100gsm txog 1200gsm, thiab nws muaj txiaj ntsig zoo rau kev txhawb nqa dav dav.
Qhov Loj
Cov iav fibers yog sib txuas los ntawm qhov chaw nyob mus rau txoj siv conveyor. Qhov chaw nyob yuav tsum tau ceev kom huv si thiab qhuav. Kev sib txuas ntawm cov hmoov yog ua los ntawm ob lub hmoov binder applicators thiab ib tug series ntawm demineralized (dej distilled) tshuaj tsuag.
Nyob rau hauv lub chopped strand lev, sab saum toj thiab hauv qab yog maj mam sprayed nrog dej distilled; Cov kauj ruam no yog tsim nyog rau kev ua kom zoo dua ntawm cov nplaum. Ib tug tshwj xeeb hmoov applicator xyuas kom meej pom cov hmoov faib. Lub vibrator ntawm ob lub applicators tso cai rau cov hmoov mus rau hauv qab ntawm lub lev.
Ua ke nrog emulsion
Cov kab hlau rhuav siv ua kom muaj qhov sib txawv txaus ntawm cov nplaum. Cov nplaum ntau dhau tau rov qab los ntawm qhov tshwj xeeb suction system. Qhov system no tso cai rau huab cua dhau los ntawm lub lev thiab tshem tawm cov nplaum. Cov nplaum yog sib npaug sib npaug, thiab cov nplaum ntau dhau raug tshem tawm. Pom tseeb, cov nplaum tuaj yeem rov qab siv tau tom qab lim tawm cov kab mob. Cov nplaum yog muab khaws cia rau hauv cov thawv ntim hauv chav sib xyaw thiab thauj los ntawm qhov qis - cov kav dej siab los ntawm lub qhov me me nyob ze ntawm lub tshuab ua haujlwm.
Cov cuab yeej tshwj xeeb khaws cia lub tank nyob rau theem tsis tu ncua. Cov nplaum rov qab kuj tseem thauj rov qab mus rau lub tank. Pumps thauj cov nplaum los ntawm lub tank cia mus rau seem sizing.
Ntau lawm
Cov iav fiber ntau chopped strand lev yog cov ntaub tsis woven ua los ntawm kev txiav filaments rau hauv 25-50 mm ntev, randomly nteg lawv rau ntawm kab rov tav, thiab tuav lawv ua ke nrog cov nplaum tsim nyog. Muaj ob hom adhesives: hmoov thiab emulsion. Lub cev lub cev ntawm cov khoom sib xyaw yog txiav txim siab los ntawm fiber ntau txoj kab uas hla, kev xaiv thiab tus nqi ntawm cov nplaum, kev siv cov kev xav, thiab nws cov formability. Cov khoom siv raw rau chopped strand lev ntau lawm yog fiberglass ncuav mog qab zib los ntawm fiberglass manufacturers, tab sis roving kuj nquag siv, ib feem kom txuag tau qhov chaw. Cov yam ntxwv zoo fiber ntau txiav, tsis tshua muaj hluav taws xob zoo li qub, thiab kev siv nplaum nplaum yog qhov tseem ceeb heev rau qhov zoo ntawm daim lev.
Lub Hoobkas tsim muaj cov ntu hauv qab no:
1. Fiber Xov Laiv
2. Chopped Strand txheej txheem
3. Kev tsim Tshooj
4. Adhesive Application System
5. Lub tshuab ziab khaub ncaws
6. Txias Tshooj
7. Trimming thiab Rewinding
Yarn Ladder Area: Rotating ncuav mog qab zib yarn ladles yog muab tso rau ntawm bobbin thav duab ntawm tus naj npawb tsim nyog. Cov bobbin thav ntawv no yog rau framing lub ncuav mog qab zib fiber ntau; thaj chaw xov paj yuav tsum nyob hauv huab cua- chav txias nrog cov av noo tiag tiag ntawm 82-90%.
Chopped Strand Equipment: Cov xov paj yog kos los ntawm fiber ntau ncuav mog qab zib, nrog ob peb strands hla txhua lub cutter.
Txoj kev ua ntu: Chopped strand lev yog tsim los ntawm shavings ntawm qhov sib npaug sib npaug, nyob rau hauv lub chamber tsim. Txhua daim ntawm cov cuab yeej yog nruab nrog lub cev muaj zog sib txawv. Cov cuab yeej txiav yog tswj hwm ntawm nws tus kheej, kom ntseeg tau tias muaj fiber ntau faib.
Cov ntu hauv qab txoj siv mesh ib txhij absorbs cov xov paj los ntawm txoj siv mesh. Cov pa cua nkag los ntawm lub tshuab purifier.
Fiberglass Chopped Strand Mat Lay-nce Thickness
Fiberglass tws strand lev yog koom nrog hauv feem ntau cov khoom fiberglass. Qhov ntau thiab cov txheej txheem ntawm kev siv tws strand lev sib txawv nyob ntawm seb cov khoom thiab cov txheej txheem, thiab nteg - nce thickness kuj txawv raws li cov txheej txheem yuav tsum tau.
Piv txwv li, nyob rau hauv fiberglass txias yees, thawj txheej yog gel tsho tiv no, ua raws li ib tug nyias txheej ntawm lev los yog 02 ntaub, nrog 6-8 txheej ntawm 04 ntaub nyob rau hauv nruab nrab, thiab ib tug zaum kawg nyias txheej ntawm lev los npog lub seams ntawm lub puab ntaub txheej. Cov khoom no tsuas yog siv ob txheej ntawm lev tag nrho. Ib yam li ntawd, hauv kev tsim tsheb hauv tsheb, cov ntaub npuag, cov ntaub tsis-woven, PP yas, tws strand lev, thiab daim txhuam cev feem ntau yog txheej ua ke. Hauv cov txheej txheem no, qhov siab tshaj plaws ntawm tsuas yog ob txheej ntawm lev yog siv. Honda automotive headliner manufacturing ua raws tib txoj cai. Yog li ntawd, tus nqi ntawm tws strand lev siv nyob rau hauv fiberglass yog txiav txim los ntawm tus txheej txheem; qee cov txheej txheem tsis tas yuav tsum tau tws strand lev, thaum lwm tus ua.
Yog hais tias 1 tuj ntawm fiberglass yog ua los ntawm tws strand lev thiab cob, tws strand lev account rau kwv yees li 30% ntawm tag nrho cov hnyav, los yog 300 kg. Hauv lwm lo lus, cov ntsiab lus resin yog 70%.
Tus nqi ntawm tws strand lev siv nyob rau hauv tib txoj kev yog txiav txim los ntawm lub layup tsim. Lub layup tsim yog raws li cov neeg kho tshuab xav tau, zoo li, thiab nto yuav tsum tau ntawm cov khoom.
Daim Ntawv Pov Thawj
Daim ntawv thov thaj chaw ntawm alkali-dawb fiberglass chopped strand lev tau nce zuj zus, suav nrog cov khoom siv thev naus laus zis xws li tsheb, nkoj, dav hlau, cua tsim hluav taws xob, thiab kev tsim tub rog. Txawm li cas los xij, tej zaum koj yuav tsis paub txog cov qauv tsim nyog rau fiberglass tws strand lev. Hauv qab no, peb qhia txog cov kev cai ntawm tus txheej txheem thoob ntiaj teb los ntawm tsib yam: alkali hlau oxide cov ntsiab lus, chav tsev sib txawv loj, cov ntsiab lus combustible, cov ntsiab lus noo noo, thiab tensile tawg lub zog.
1. Alkali Metal Content: Cov ntsiab lus ntawm alkali hlau oxide ntawm alkali-dawb fiberglass chopped strand lev yuav tsum tsis pub tshaj 0.8%.
2. Chav Tsev Loj
3. Cov ntsiab lus combustible: Thaum tsis muaj kev pom zoo, cov ntsiab lus combustible yuav tsum yog 1.8%-8.5%, nrog rau qhov ntau tsis tshaj 2.0%. 4. Moisture Content: Cov ntsiab lus noo noo ntawm kev siv cov hmoov binders yuav tsum tsis pub tshaj 2.0%. Cov dej noo ntawm kev xav siv emulsion binders yuav tsum tsis pub tshaj 5.0%.
5. Tensile Breaking Strength:
Feem ntau, alkali-dawb chopped strand lev ua tau raws li qhov xav tau saum toj no yog suav tias tsim nyog. Txawm li cas los xij, nyob ntawm cov khoom siv thiab cov txheej txheem tsim khoom, cov kev xav tau siab dua tuaj yeem muab tso rau ntawm lub zog tensile thiab chav tsev loj sib txawv. Qhov no tsim nyog peb cov neeg yuav khoom yuav tsum paub txog lawv cov khoom tsim cov txheej txheem thiab txiav txim siab hom fiberglass lev kom tus neeg muag khoom tuaj yeem tsim raws li.
