Moulding yog cov txheej txheem ntawm kev ua ntau hom polymers (hmoov, pellets, kev daws teeb meem lossis dispersions) rau hauv cov khoom hauv cov duab uas xav tau. Nws yog qhov tseem ceeb tshaj plaws nyob rau hauv tag nrho cov txheej txheem ntawm cov khoom siv yas molding thiab yog tsim los ntawm tag nrho cov ntaub ntawv polymer los yog profiles. Cov txheej txheem tsim nyog.Cov txheej txheem yas molding muaj xws li extrusion molding, txhaj tshuaj molding, compression molding, hloov molding, laminate molding, tshuab moulding, calender molding, foam molding, thermoforming thiab ntau lwm txoj kev, tag nrho cov uas muaj lawv adaptability.
Thermoformingyog ib txoj hauv kev tsim cov khoom siv cov ntaub ntawv thermoplastic raws li cov ntaub ntawv raw, uas tuaj yeem raug ntaus nqi los ntawm kev txhaj tshuaj thib ob ntawm cov yas. Ua ntej, daim ntawv txiav rau hauv ib qho loj thiab cov duab yog muab tso rau ntawm tus ncej ntawm cov pwm, thiab rhuab mus rau ib tug siab elastic xeev ntawm Tg-Tf, daim ntawv yog stretched thaum raug rhuab, thiab ces lub siab yog thov kom nws kaw. rau pwm Cov duab saum npoo zoo ib yam li cov duab saum npoo, thiab cov khoom tuaj yeem tau txais tom qab txias, shaping thiab trimming.Thaum lub sij hawm thermoforming, qhov kev thov siab feem ntau yog raws li qhov sib txawv ntawm qhov sib txawv ntawm lub tshuab nqus tsev thiab qhia cov cua compressed ntawm ob sab ntawm daim ntawv, tab sis kuj los ntawm kev siv tshuab siab thiab hydraulic siab.
Cov yam ntxwv ntawm thermoforming yog tias lub siab ua haujlwm tsawg, thiab cov txheej txheem thermoforming yog raws li hauv qab no:
board (daim ntawv) khoom → clamping → cua sov → siab → txias → shaping → semi-tiav khoom → txias → trimming.Thermoforming ntawm cov khoom tiav yog txawv los ntawm ib lub sij hawm ua technology xws li txhaj tshuaj molding thiab extrusion. Nws tsis yog rau yas resin los yog pellets rau cua sov molding los yog nruam molding nrog tib tug ntoo khaub lig-section los ntawm ib tug tuag; tsis yog nws siv cov cuab yeej siv tshuab, cov cuab yeej thiab lwm yam kev siv tshuab los txiav ib feem ntawm cov khoom yas. Tom ntej no, kom tau raws li qhov xav tau cov duab thiab qhov loj me, tab sis rau cov khoom siv yas (daim ntawv) cov khoom siv, cua sov, siv pwm, lub tshuab nqus tsev lossis lub siab kom deform lub board (daim ntawv) cov khoom. Mus txog qhov xav tau cov duab thiab qhov loj me, ntxiv los ntawm cov txheej txheem txhawb nqa, kom paub txog lub hom phiaj ntawm daim ntawv thov.
Thermoforming thev naus laus zis yog tsim los ntawm kev tsim cov ntawv hlau. Txawm hais tias nws txoj kev loj hlob lub sij hawm tsis ntev, tab sis cov txheej txheem ceev yog ceev, cov degree ntawm automation yog siab, cov pwm yog pheej yig thiab yooj yim los hloov, thiab adaptability muaj zog. Nws tuaj yeem tsim cov khoom loj li dav hlau thiab tsheb, me me li khob dej haus. Cov khoom seem yog ib qho yooj yim rau rov siv dua. Nws tuaj yeem ua cov ntawv nyias nyias li 0.10mm tuab. Cov nplooj ntawv no tuaj yeem ua pob tshab lossis opaque, crystalline lossis amorphous. Cov qauv tuaj yeem luam tawm ntawm daim ntawv ua ntej, lossis cov qauv nrog cov xim ci tuaj yeem luam tawm tom qab molding.
Nyob rau hauv 30 mus rau 40 xyoo dhau los, vim muaj ntau yam ntawm cov ntaub ntawv thermoplastic (daim ntawv) cov ntaub ntawv raws li raw cov ntaub ntawv, kev txhim kho txuas ntxiv ntawm cov khoom siv thermoforming, thiab cov khoom siv dav dav, thermoforming thev naus laus zis tau tsim nrog kev loj hlob sai, nws cov thev naus laus zis. thiab cov khoom siv tau ua ntau dua thiab zoo meej. Piv nrog rau kev txhaj tshuaj molding, thermoforming muaj qhov zoo ntawm kev ua haujlwm siab, txoj kev yooj yim, cov cuab yeej siv tsawg dua, thiab muaj peev xwm los tsim cov khoom nrog cov chaw loj. Txawm li cas los xij, tus nqi ntawm cov khoom siv thermoforming yog siab, thiab muaj ntau cov txheej txheem tom qab ua tiav rau cov khoom. Nrog rau kev txhim kho tas mus li ntawm cov cuab yeej tsim khoom thiab xav tau kom muaj txiaj ntsig zoo tshaj plaws ntawm kev lag luam, cov khoom siv thermoforming tau maj mam tshem tawm cov qub tsuas yog ib qho kev ywj pheej yas board (daim ntawv) cov ntaub ntawv molding system, thiab tau pib ua ke nrog lwm cov khoom siv ntau lawm kom ua tau raws li qhov muaj pes tsawg leeg. Ua tiav cov kab ntau lawm rau cov kev xav tau tshwj xeeb, yog li ntxiv kev txhim kho kev tsim khoom thiab txo cov nqi tsim khoom ntawm cov khoom kawg.
Thermoformingtshwj xeeb tshaj yog tsim rau kev tsim cov khoom siv nrog cov phab ntsa nyias thiab thaj chaw loj. Feem ntau siv cov yas ntau yam xws li polystyrene, plexiglass, polyvinyl chloride, abs, polyethylene, polypropylene, polyamide, polycarbonate thiab polyethylene terephthalate.
Lub sij hawm xa tuaj: Plaub Hlis-20-2021