Nrog rau txoj kev loj hlob ntawm 5G, lub tshuab ziab plaub hau tau nkag mus rau tiam tom ntej, thiab qhov kev thov rau lub tshuab ziab khaub ncaws tus kheej kuj nce ntxiv.Fiberglass reinforced nylon (PA) tau ntsiag to dhau los ua cov khoom siv hnub qub rau cov plaub hau tshuab ziab khaub ncaws thiab cov khoom siv kos npe rau tiam tom ntej ntawm high-end plaub hau tshuab.
Fiberglass reinforced PA66 feem ntau yog siv nyob rau hauv lub nozzles ntawm cov plaub hau tshuab ziab khaub ncaws zoo, uas yuav ua rau kom lub zog thiab ua kom muaj cua sov.Txawm li cas los xij, raws li cov kev xav tau ntawm lub tshuab ziab plaub hau ua kom siab dua thiab siab dua, ABS, uas yog cov khoom tseem ceeb ntawm lub plhaub, tau maj mam hloov los ntawm fiberglass reinforced PA66.
Tam sim no, cov ntsiab lus tseem ceeb cuam tshuam rau kev npaj cov khoom siv fiberglass PA66 muaj xws li qhov ntev ntawm PA fiberglass tws strands, kev kho saum npoo ntawm fiberglass tws strands rau PA thiab lawv qhov ntev tuav hauv matrix.
Tom qab ntawd cia peb saib cov khoom tsim ntawm iav fiber ntau ntxiv PA66~
ntev ntawmPA fiberglass tws strands
Thaum cov iav fiber ntau ntxiv, qhov ntev ntawm PA chopped strands yog ib qho tseem ceeb uas txiav txim siab fiber ntau cov khoom sib xyaw.Nyob rau hauv ib qho luv luv fiberglass reinforced thermoplastics, qhov ntev fiber ntau tsuas yog (0.2 ~ 0.6) hli, yog li thaum cov khoom raug puas los ntawm kev quab yuam, nws lub zog yog qhov tseem ceeb vim qhov luv fiber ntau ntev, thiab lub hom phiaj ntawm kev siv fiberglass reinforced nylon (PA ) yog siv lub siab rigidity thiab siab zog ntawm fiber ntau los txhim kho cov khoom siv kho tshuab ntawm nylon, yog li qhov ntev fiber ntau plays lub luag haujlwm tseem ceeb hauv cov khoom siv kho tshuab.Piv nrog rau luv iav fiber reinforced txoj kev, lub modulus, lub zog, creep tsis kam, qaug zog tsis kam, cuam tshuam tsis kam, kub tsis kam thiab hnav tsis kam ntawm ntev iav fiber reinforced nylon tau txhim kho, nthuav dav nws daim ntawv thov hauv tsheb, khoom siv hluav taws xob, tshuab thiab tub rog. .
Kev kho deg ntawmfiberglass tws strands rau PA
Lub zog sib txuas ntawm fiberglass thiab matrix yog lwm qhov tseem ceeb cuam tshuam rau cov khoom siv hluav taws xob ntawm cov khoom sib xyaw.Fiberglass reinforced polymers tsuas tuaj yeem ua tau zoo yog tias lawv tsim cov ntawv cog lus zoo.Rau iav fiber reinforced thermosetting resin los yog polar thermoplastic resin composite cov ntaub ntawv, qhov saum npoo ntawm fiberglass tuaj yeem kho nrog tus neeg sawv cev sib txuas los tsim cov tshuaj sib txuas ntawm cov resin thiab qhov chaw ntawm fiberglass, thiaj li kom tau txais kev sib txuas lus zoo.
Retention Length ntawmFiberglasshauv Nylon Matrix
Cov neeg tau ua tiav kev tshawb fawb ntau ntawm kev sib xyaw ntawm fiberglass reinforced thermoplastic resin thiab cov txheej txheem molding ntawm cov khoom.Nws tau pom tias qhov ntev ntawm fiberglass tws strands nyob rau hauv cov khoom yog ib txwm txwv rau tsawg tshaj li 1 hli, uas yog heev txo piv nrog rau cov thawj fiber ntev.Tom qab ntawd, qhov tshwm sim ntawm fiber ntau tawg thaum lub sij hawm ua tiav, thiab nws tau pom tias cov txheej txheem ua thiab lwm yam muaj feem cuam tshuam rau fiber ntau.
khoom siv
Hauv kev tsim cov ntsia hlau thiab lub nozzle, nws yog ib qho tsim nyog kom tsis txhob nqaim dhau thiab hloov pauv ntawm cov qauv.Yog tias cov dej ntws yog nqaim dhau, nws yuav cuam tshuam rau kev txav ntawm cov iav fiber ntau, uas yuav ua rau cov nyhuv shearing thiab ua rau tawg;yog tias muaj kev hloov pauv tam sim ntawd hauv cov qauv, nws yog qhov yooj yim heev los tsim Cov kev ntxhov siab ntxiv ua rau covfiberglass.
Txheej txheem txheej txheem
1. chim kub
Qhov ntsuas kub siv thaum ua cov khoom siv ntxiv dag zog yuav tsum siab tshaj 280 ° C.Qhov no yog vim tias, thaum kub siab dua, cov viscosity ntawm cov yaj yuav raug txo kom tsawg, yog li cov shear quab yuam ua rau cov fiber ntau txo.Thiab qhov tawg ntawm fiberglass feem ntau tshwm sim nyob rau hauv lub melting seem ntawm lub extruder.vim hais tias cov iav fiber ntau ntxiv rau melted polymer, cov yaj yog tov nrog cov iav fiber los qhwv lub iav fiber, uas plays lub luag hauj lwm lubricating thiab tiv thaiv.Qhov no txo cov fiber ntau tawg thiab hnav ntawm cov ntsia hlau thiab cov thoob, thiab ua kom yooj yim rau dispersion thiab faib cov iav fibers hauv yaj.
2. Pwm kub
Lub mechanism ntawm fiberglass tsis ua hauj lwm nyob rau hauv lub pwm yog tsuas yog hais tias qhov kub ntawm cov pwm yog tsawg tshaj li ntawm cov yaj.Tom qab cov yaj ntws mus rau hauv cov kab noj hniav, ib txheej khov yog tsim rau ntawm phab ntsa sab hauv tam sim ntawd, thiab nrog rau qhov txias txias ntawm cov yaj, cov txheej khov yog tsim.Lub thickness ntawm fiberglass tseem nce ntxiv, yog li ntawd cov txheej txheem nruab nrab ntawm cov dawb-ntws yuav me dua thiab me dua, thiab ib feem ntawm cov iav fiber ntau hauv cov yaj ua rau cov txheej khov thiab lwm qhov kawg tseem ntws nrog cov yaj, yog li tsim ib qho loj. shear quab yuam ntawm fiberglass ua rau tawg.Qhov tuab ntawm cov txheej khov los yog qhov loj ntawm cov txheej txheej dawb yuav cuam tshuam ncaj qha rau qhov ntws ntawm cov yaj thiab qhov loj ntawm lub zog shear, uas nyob rau hauv lem cuam tshuam cov degree ntawm kev puas tsuaj rau lub fiberglass.Lub thickness ntawm txheej khov ua ntej nce thiab tom qab ntawd txo qis nrog qhov kev ncua deb ntawm lub rooj vag.Tsuas yog nyob rau hauv nruab nrab, lub khov txheej thickness nce nrog lub sij hawm.Yog li thaum kawg ntawm kab noj hniav, qhov ntev fiber ntau yuav rov qab mus rau qib siab dua.
3. Kev cuam tshuam ntawm cov ntsia hlau ceev ntawmfiberglassntev
Qhov nce ntawm cov ntsia hlau ceev yuav ncaj qha mus rau qhov nce ntawm shear stressing ua rau lub fiberglass.Ntawm qhov tod tes, qhov nce ntawm cov ntsia hlau ceev tuaj yeem ua kom cov txheej txheem plasticization ntawm cov polymer, txo cov viscosity yaj, thiab txo cov kev ntxhov siab ua rau cov fiber ntau.Qhov no yog vim lub ntxaib ntsia hlau muab feem ntau ntawm lub zog xav tau rau melting.Yog li ntawd, qhov cuam tshuam ntawm cov ntsia hlau ceev ntawm fiber ntau muaj ob qhov sib txawv.
4. Txoj hauj lwm thiab txoj kev ntxiv iav fiber ntau
Thaum cov polymer melted thiab extruded, nws yog feem ntau ntxiv ntawm thawj qhov chaw noj mov tom qab sib tov sib npaug.Txawm li cas los xij, nyob rau hauv cov txheej txheem ntawm yaj extrusion ntawm fiberglass reinforced nylon (PA), cov polymer yuav tsum tau ntxiv rau ntawm qhov chaw nres nkoj thawj zaug, thiab nws yuav yaj thiab yas.Tom qab ntawd, cov fiberglass tws strands rau PA yog ntxiv rau ntawm qhov chaw nres nkoj downstream, uas yog, tom qab noj mov yog saws.Qhov no yog vim hais tias yog ob qho tib si fiberglass thiab cov khoom polymer ntxiv los ntawm thawj qhov chaw noj zaub mov, cov fiberglass yuav tawg ntau heev thaum lub sij hawm thauj khoom, thiab sab hauv ntawm cov ntsia hlau thiab lub tshuab tseem yuav nyob rau hauv kev sib cuag ncaj qha nrog cov fiberglass, ua rau. hnyav hnav thiab tsim kua muag ntawm cov khoom siv.
Post lub sij hawm: Mar-23-2022