PET extrusion hloov polyethylene terephthalate resin rau hauv cov nplooj ntawv txuas ntxiv thiab cov yeeb yaj kiab siv thoob plaws ntim khoom noj, ntim khoom kho mob, thiab cov khoom siv thermoformed. Cov txheej txheem melts PET pellets los yog flakes ntawm 260-290 degree, quab yuam cov khoom los ntawm ib tug ca tuag, thiab sai txias nws los tsim pob tshab, check nplooj ntawv haum rau clamshells, tais, thiab blister ntim.
Cov txheej txheem PET Extrusion hloov cov khoom nyoos rau hauv cov ntawv ntim
PET extrusion pib nrog kev npaj cov ntaub ntawv uas PET resin -txawm tias cov pellets nkauj xwb los yog cov flakes rov ua dua tshiab - nkag mus rau hauv cov txheej txheem tsim khoom. Cov dej noo yuav tsum poob qis dua 0.005% los ntawm ua ntej- ziab ntawm 120-160℃rau 2-4 teev, vim dej ua rau hydrolytic degradation thaum lub sij hawm melting uas ua rau cov khoom kawg tsis muaj zog. Niaj hnub nimno qhuav{10}}cov cuab yeej siv tshuab pub dawb tam sim no tshem tawm cov kauj ruam no los ntawm kev siv lub tshuab nqus tsev degassing hauv ntxaib-ntsia hlau extruders, txiav kev siv hluav taws xob los ntawm 15-20%.
Cov theem extrusion pub cov khoom qhuav rau hauv ib qho - ntsia hlau lossis ntxaib - ntsia hlau extruder qhov chaw tswj cua sov ua kom yaj cov polymer. Ntxaib- cov ntsia hlau configurations muab kev sib xyaw ua ke zoo tshaj plaws thiab tuaj yeem ua cov ntsiab lus rov ua dua yam tsis muaj kev sib cais crystallization, ua tiav cov nqi nce mus txog 2,500 kg / teev rau cov kab lag luam. Kev tswj qhov kub thiab txias thoob plaws hauv lub thoob tiv thaiv thermal degradation- kub dhau 300℃ua rau yellowing thiab brittleness.
Melt filtration tshem tawm cov kab mob ua ntej molten PET mus txog T-tuag los yog lub tsho tiv no-hanger tuag uas tsim cov khoom mus rau hauv ib daim ntawv sib xws. Tuag tsim txiav txim siab daim ntawv dav (feem ntau 750-1,700mm) thiab thickness tswj. Daim ntawv extruded ces dhau los ntawm peb - yob calender system uas precisely kub-tswj rollers compress thiab polish rau saum npoo. Sab saum toj cov menyuam kub nyob ib ncig ntawm 80-110℃xyuas kom meej qhov chaw tiav thaum cov menyuam hauv qab txias rau daim ntawv kom khov nws cov qauv.
Kev ua kom txias sai ntawm cov menyuam txias txias yog qhov tseem ceeb rau kev tsim cov ntawv amorphous PET (APET) nrog rau qhov pom tseeb. Txias tus nqi siab tshaj 250℃ib feeb tiv thaiv crystallization uas yuav ua rau daim ntawv opaque. Cov ntawv txias yuav dhau los ntawm kev thauj mus los -tawm lub kaw lus tswj kev nruj nruj ua ntej mus txog qhov chaw nres tsheb winding uas cov yob tiav tau sau rau thermoforming lossis hloov dua siab tshiab.
Kev tswj xyuas zoo thoob plaws hauv kab saib xyuas cov tuab tuab (± 0.02mm kam rau ua), pom qhov pom tseeb, thiab cov viscosity ntawm sab hauv kom ntseeg tau tias ntim khoom - qib specifications. Tiag - lub sij hawm IV kev soj ntsuam tau tshwm sim los ua ib qho kev ua si- hloov pauv- cov kab ke tam sim no tuaj yeem kuaj pom qhov sib txawv ntawm cov viscosity nrog ± 0.02 dl / g raug thiab nws pib- kho cov txheej txheem kom tswj tau qhov sib xws ntawm kev khiav haujlwm ntau lawm.
Khoom Specifications Tsav PET Sheet Performance
Intrinsic viscosity txiav txim siab PET qhov hnyav molecular thiab cuam tshuam ncaj qha rau lub zog siv tshuab. Cov ntawv ntim khoom feem ntau xav tau IV qhov tseem ceeb ntawm 0.72-0.84 dl / g, nrog cov ntawv pob tshab ua tau zoo ntawm 0.80-0.90 dl / g. IV qis ua rau brittleness thiab tsis zoo thermoformability, thaum IV siab heev ua rau kev ua haujlwm nyuaj thiab khoom siv.
Kev xaiv cov khoom ntawm APET thiab RPET cuam tshuam rau kev ua haujlwm thiab kev ruaj khov. Virgin APET muab qhov tseeb tshaj plaws thiab kev ua raws li FDA rau kev sib cuag zaub mov ncaj qha, ua rau nws zoo tagnrho rau cov khoom ntim tshiab thiab ntim khoom noj. Recycled PET (RPET) los ntawm kev tshaj tawm -cov neeg siv khoom lub raj mis tam sim no phim cov khoom siv nkauj xwb zoo los ntawm kev txheeb xyuas thiab tshem tawm cov kab mob, nrog cov tuam txhab lag luam loj tau koom nrog 50-100% cov ntsiab lus rov ua dua tshiab hauv cov khoom tsis yog{5}} zaub mov thiab qee cov ntawv thov zaub mov.
PET ntim lag luam tau txog $ 24.6 lab tons thoob ntiaj teb hauv 2023, kwv yees tias yuav loj hlob ntawm 3.6% CAGR txog xyoo 2028 txog 29.4 lab tons. Qhov kev nthuav dav no qhia txog PET qhov kev hloov pauv ntawm PVC thiab polystyrene vim muaj kev rov ua dua tshiab thiab kev nkag siab txog kev nyab xeeb ntawm cov neeg siv khoom. Daim ntawv extrusion kab tam sim no suav rau $ 1.2 nphom khoom lag luam hauv xyoo 2024, xav tias yuav ncav cuag $ 1.9 nphom los ntawm 2033 raws li cov tuam txhab hloov kho rau lub zog -ntau, automation- siv tshuab.
Multilayer coextrusion thev naus laus zis pab txhim kho kev ua haujlwm zoo los ntawm kev sib txuas PET nrog cov txheej txheem thaiv. ABA cov qauv siv nkauj xwb PET txheej txheej (7.5% txhua) sandwiching ib tug recycled core, tswj zaub mov kev nyab xeeb thaum ua kom muaj kev ruaj ntseg. Qee daim ntawv thov suav nrog EVOH lossis PVDC teeb meem rau kev tiv thaiv cov pa oxygen hauv kev hloov pauv huab cua.
Thermoforming Applications siv Extruded PET Sheets
Kev ntim khoom noj sawv cev rau daim ntawv PET daim ntawv thov loj tshaj plaws, suav nrog cov khoom tshiab clamshells, ntim cov txiv hmab txiv ntoo, cov tais ci ci, thiab cov ntim khoom noj hauv tub yees. Cov khoom siv pom tseeb tso cai rau cov neeg siv khoom tshawb xyuas cov ntsiab lus thaum nws qhov cuam tshuam tiv thaiv kev puas tsuaj thaum tuav thiab thauj. PET's gas barrier zog txuas lub txee lub neej los ntawm kev txwv kev xa cov pa oxygen uas ua rau lwj.
Clamshell ntim dominates cov khoom lag luam ntawm cov khw muag khoom vim tias PET cov ntawv thermoform rau hauv cov duab kos meej nrog cov pob khawm nyob ruaj. Tsis zoo li polystyrene uas tawg nyob rau hauv rov flexing, PET tuav lub pob khawm kev ncaj ncees los ntawm ntau pua qhib -kab voj voog. Qhov kev ua haujlwm ntev no txhawb nqa cov thawv ntim rov qab siv tau kom tau txais traction hauv kev ntim khoom ruaj khov.
Kev kho mob thiab kev ntim tshuaj leverages PET kev sib xyaw ua ke ntawm pob tshab, tshuaj tiv thaiv, thiab kev ua kom tsis muaj menyuam. Cov hnab ntim rau cov ntsiav tshuaj, cov khoom siv kho mob cov tais rau cov cuab yeej phais, thiab cov khoom siv kuaj mob tag nrho siv cov ntawv thermoformed PET. Cov khoom siv tiv thaiv gamma hluav taws xob ua kom tsis muaj menyuam yam tsis muaj degrading - tseem ceeb rau kev tswj kom tsis muaj menyuam nyob hauv daim ntawv thov kev noj qab haus huv.
Cov khoom ntim khoom siv hluav taws xob tiv thaiv cov khoom rhiab thaum thauj khoom thiab muag khoom. Thermoformed PET tais nrog kev cai compartments ruaj ntseg cov khoom xws li cov khoom siv hluav taws xob mus rau cov khoom lag luam, nrog cov tshuaj tiv thaiv zoo li qub muaj rau cov khoom zoo li qub - cov khoom puas. Cov khoom siv qhov kev ruaj ntseg kom meej meej haum rau qhov tseem ceeb rau cov kab sib dhos tsis siv neeg.
Cov khoom ntim khoom siv dav siv tshuaj pleev ib ce, khoom kho vajtse, khoom ua si, thiab cov khoom siv sau ntawv. PET lub peev xwm luam tawm txhawb nqa cov duab zoo nkauj uas txhim kho cov txee kom txaus siab, thaum nws qhov tawv tawv muab kev tiv thaiv cov qauv. Cov khw muag khoom nyiam PET qhov zoo tshaj plaws piv rau cov kev xaiv qis dua, tshwj xeeb tshaj yog rau cov khoom uas ntim cuam tshuam rau kev txiav txim siab yuav khoom.
Cov Khoom Siv Teeb Meem cuam tshuam rau kev muaj peev xwm ntau lawm
Ib leeg -ntsia hlau extruders tseem raug nqi- zoo rau cov ntaub ntawv APET yooj yim tsim nrog cov ntaub ntawv nkauj xwb, muab kev ua haujlwm yooj yim dua thiab qis peev peev. Cov tshuab no ua haujlwm zoo rau cov tuam txhab tsim cov ntawv ntsuas ntsuas hauv qhov txwv dav. Txawm li cas los xij, lawv xav tau cov cuab yeej ziab kom qhuav thiab muab qhov yooj yim dua rau kev ua cov ntsiab lus rov ua dua.
Twin- ntsia hlau extruders tau ntes 68% ntawm PET extrusion ua lag luam vim muaj peev xwm ua tau zoo dua. Lub intermeshing co-rotating screws muab kev sib tov sib xyaw, ua kom zoo degassing, thiab maj mam shear piv rau ib qho - ntsia hlau tsim. Qhov kev teeb tsa no ua cov ntaub ntawv nrog cov tswv yim tsis sib xws -tshwj xeeb yog qhov tseem ceeb rau RPET qhov twg flake loj thiab cov kab mob sib txawv ntawm cov khoom siv. Twin- cov ntsia hlau ntsia hlau kuj tseem tuaj yeem ua rau reactive extrusion nrog cov saw txuas ntxiv uas rov qab qhov hnyav molecular hauv cov khoom siv dua tshiab.
Ntau lawm muaj peev xwm ntsuas los ntawm cov kab tsav ntawm 50-200 kg/hour rau cov khoom tsim mus txog rau industrial systems tshaj 4,000 kg/teev. Nruab nrab- kab khiav hauj lwm ntawm 500-1,500 kg/hour suit regional converters supplying local thermoformers. Cov nqi khoom siv qhia txog kev muaj peev xwm-kev nkag-theem pib ib puag ncig $ 300,000 thaum kev teeb tsa turnkey nrog automation, tuav cov khoom siv, thiab kev saib xyuas zoo tshaj $ 2 lab.
Automation integration transforms niaj hnub PET extrusion kab los ntawm manually - kho tshuab rau tus kheej - optimizing ntau lawm platforms. PLC controllers nrog HMI interfaces muab cov txheej txheem hauv nruab nrab saib xyuas, thaum Kev Lag Luam 4.0 kev sib txuas ua kom muaj kev saib xyuas kwv yees thiab tiag - sijhawm taug qab kev ua haujlwm zoo. Cov kab Advanced suav nrog lub tshuab tsis pom kev soj ntsuam uas kuaj pom cov khoom gel, qhov tsis xws luag, thiab cov thickness variations ntawm ntau lawm ceev.
Sustainability Advantages Position PET Raws li ntim tshuaj
PET cov khoom siv rov ua dua tshiab tau dhau los ntawm tag nrho lwm cov ntim yas, nrog cov txheej txheem sau rov qab tau kwv yees li 29% ntawm PET lub raj mis hauv Tebchaws Meskas thiab 58% hauv Tebchaws Europe txij li xyoo 2023. Cov khoom siv tshuaj siv tau raug kaw -loop recycling qhov twg cov fwj ua cov ntim tshiab ntau zaus yam tsis muaj kev puas tsuaj loj. Qhov kev muaj peev xwm ncig no nyiam cov hom lag luam nrhiav kev cog lus ruaj khov thiab teb rau cov neeg siv khoom kev txhawj xeeb ib puag ncig.
Kev tshawb fawb txog kev ua neej nyob tsis tu ncua qhia PET qhov kev pom zoo ib puag ncig piv rau lwm cov khoom ntim khoom. Cov khoom siv yuav tsum muaj lub zog tsawg dua los tsim dua iav lossis txhuas, ua rau qis qis hauv tsev cog khoom emissions thaum lub sij hawm thauj mus los vim nws lub teeb yuag, thiab disverts organic pov tseg los ntawm landfills thaum siv rau ntim zaub mov. Ib txoj kev tshawb fawb sib piv xyoo 2024 pom PET lub raj mis tsim 50-70% tsawg dua CO2 emissions dua li iav fwj ntawm qhov sib npaug ntawm lawv lub neej tag nrho.
Recycled cov ntsiab lus kev koom ua ke txuas ntxiv nce thoob plaws kev lag luam ntim khoom. Cov tuam txhab dej haus loj tam sim no muab lub raj mis nrog 25-50% tshaj tawm- cov neeg siv khoom siv rov qab cov ntsiab lus, thaum qee cov tuam txhab European tau ua tiav 100% RPET fwj rau cov dej tsis yog- carbonated. Sheet extrusion ua kom muaj cov ntsiab lus rov ua dua tshiab dua li lub raj mis tsim -ntau cov neeg tsim khoom lag luam clamshell ua haujlwm nrog 80-100% RPET siv cov cuab yeej extrusion siab heev uas tswj kom pom tseeb txawm tias siv cov khoom sib xyaw xim.
Cov cuab yeej siv tshuaj lom neeg rov ua dua tshiab tau tshwm sim hauv 2024-2025 cog lus tias yuav daws cov kab mob PET tsis zoo rau kev siv tshuab rov ua dua tshiab. Cov txheej txheem zoo li glycolysis, methanolysis, thiab enzymatic depolymerization rhuav PET rau hauv monomers uas tuaj yeem rov ua dua rau hauv cov pob zeb zoo nkauj. Thaum tam sim no sawv cev rau ib feem me me ntawm cov PET rov ua dua tshiab, cov thev naus laus zis no tuaj yeem qhib qhov seem 70% ntawm PET pov tseg tsis raug ntes los ntawm kev siv tshuab rov ua dua tshiab.
Cov txheej txheem tswj xyuas cov ntawv zoo
Kev tswj kub ntawm cov kab extrusion cuam tshuam rau txhua qhov kev ntsuas zoo. Cov cheeb tsam hauv lub thoob yuav tsum tau muaj kev tswj xyuas kom meej gradient- ntu pub zaub txias kom tiv thaiv kom tsis txhob ntxov ntxov thaum lub sij hawm compression thiab metering zones tuav lub qhov rais nqaim ntawm PET lub melting point (255 degree) thiab degradation pib (300 degree). Tuag kub uniformity nyob rau hauv ± 2℃tiv thaiv ndlwg instabilities uas tsim thickness bands los yog ntug beading.
Txias yob qhov kub thiab txias profiles cuam tshuam daim ntawv cov khoom ua tau zoo heev. Kev txias ntau dhau ua rau muaj kev ntxhov siab sab hauv uas ua rau muaj kev kub ntxhov thaum lub sij hawm tom qab thermoforming, thaum tsis txaus cua txias tso cai rau crystallization uas txo cov clarity. Peb - yob calenders muaj kev tswj qhov kub thiab txias rau txhua tus menyuam, ua kom zoo tshaj plaws ntawm kev ua tiav ntawm ob lub ntsej muag. Cov tshuab niaj hnub siv cov ntsuas kub ntsuas kub kom tswj tau ± 0.5℃stability.
Extrusion siab xyuas muab kev tshawb pom ntxov ntawm cov teeb meem pom, ntsia hlau hnav, lossis cov khoom tsis sib xws. Lub siab sensors ntawm qhov tuag thiab extruder tawm mus taug kev yaj tus cwj pwm, nrog kev nce sai sai qhia tias cov pob khoom paug yuav tsum hloov pauv - tawm. Kev hloov pauv cov tshuaj ntsuam tsis siv neeg tam sim no tso cai rau hloov lim yam tsis muaj kev tso tseg ntau lawm- tseem ceeb rau kev tswj xyuas cov khoom siv thaum ua cov ntsiab lus rov ua dua tshiab nrog cov kab mob ntau dua.
Thickness control systems siv scanning beta gauges lossis laser sensors los ntsuas daim ntawv caliper thoob plaws lub vev xaib. Kaw-Loop tawm tswv yim kho qhov tuag di ncauj qhov khoob lossis thauj- tawm nrawm kom them nyiaj rau kev hloov pauv, ua tiav qhov siab ntawm ± 3% rau cov ntawv thov raug. Cov txheej txheem tswj xyuas cov txheej txheem txheeb xyuas txheeb xyuas cov xwm txheej ua ntej lawv dhau los ua cov teeb meem zoo, txo qis cov nqi qis dua 2% ntawm qhov zoo- kab sib tw.
Economic Factors cuam tshuam rau PET Sheet Adoption
Cov nqi raw khoom sawv cev rau 60-75% ntawm PET daim ntawv cov nqi tsim khoom, ua tus nqi resin tus nqi tseem ceeb ntawm kev lag luam. Virgin PET resin pauv ntawm $ 1,100-1,300 ib metric ton hauv lig 2024, thaum RPET flakes txib $ 750-950 ib tuj nyob ntawm qhov muaj txiaj ntsig zoo thiab hauv cheeb tsam. Qhov no $ 200-400 ib tuj nyiaj khaws cia tsav cov ntsiab lus siv rov ua dua qhov kev ua tau zoo tso cai.
Kev siv hluav taws xob hauv PET extrusion nyob ntawm qhov hnyav ntawm cov cuab yeej siv thiab seb puas yuav tsum tau ua ntej - ziab. Cov kab ke ua ke nrog cais crystallization thiab ziab kom qhuav noj 0.4-0.6 kWh ib kilogram ntawm daim ntawv tsim. Advanced ntxaib- ntsia hlau kab nrog kev sib xyaw degassing txo qhov no mus rau 0.25-0.35 kWh/kg-a 30-40% kev txuag hluav taws xob uas cuam tshuam rau cov nqi khiav lag luam rau cov tuam txhab ntim siab.
Cov kev xav tau ntawm kev ua haujlwm sib txawv nrog qib automation. Cov kab ntawv phau ntawv xav tau 2-3 tus neeg ua haujlwm rau ib qho kev hloov pauv rau kev tuav cov khoom, kev kuaj xyuas zoo, thiab kev hloov kho. Lub tshuab ua haujlwm siab nrog cov neeg hlau yob tuav thiab kev tshuaj xyuas inline ua haujlwm nrog kev saib xyuas ib tus neeg ua haujlwm, txo cov nqi zog ua haujlwm ib kilogram. Lub sijhawm them rov qab rau kev nqis peev automation feem ntau yog li ntawm 18-36 lub hlis nyob ntawm qhov ntim ntau lawm.
Kev ua lag luam tus nqi rau APET daim ntawv yog li ntawm $ 2.20-2.80 ib kilogram nyob ntawm thickness, dav, thiab txiav txim ntim. RPET daim ntawv feem ntau yog tus nqi 10-15% qis dua, txawm hais tias qhov sib txawv no nqaim rau cov khoom noj muaj ntawv pov thawj-hu rau cov ntsiab lus rov ua dua uas yuav tsum muaj kev lees paub. Cov qib tshwj xeeb nrog cov khoom ntxiv hais kom tus nqi hwm tus nqi -UV-stabilized, antistatic, los yog cov ntawv thaiv-txheej txheej ntxiv $ 0.30-0.80 ib kilogram rau tus nqi pib.
Common Production Challenges yuav tsum tau kev daws teeb meem
Crystal point defects tshwm sim raws li me me opaque hais nyob rau hauv lwm yam ntaub ntawv ntshiab, tshwm sim los ntawm localized crystallization thaum ua los yog paug nyob rau hauv recycled feedstock. Kev tiv thaiv yuav tsum tswj xyuas qhov ua kom txias kom zoo, siv qhov siab - pom kev ua tau zoo (feem ntau 80-120 mesh cov ntxaij vab tshaus), thiab xyuas kom cov dej noo nyob qis dua qhov tseem ceeb. Thaum cov ntsiab lus siv lead ua tshwm sim, kho cov extruder kub profiles los ntawm 5-10℃feem ntau daws qhov teeb meem.
Yellowing qhia tias thermal degradation los ntawm ntau lub sijhawm nyob ntawm qhov kub thiab txias. Qhov teeb meem no hnyav dua thaum ua cov ntsiab lus rov ua dua nrog qis dua thawj IV. Cov kev daws teeb meem suav nrog txo cov cua sov los ntawm 10-15 degree, txo lub sijhawm nyob hauv lub neej los ntawm kev nce ntxiv, thiab ntxiv cov thermal stabilizers lossis cov saw txuas ntxiv. Twin- ntsia hlau extruders 'lub sij hawm nyob rau hauv lub sij hawm luv luv yuav txo tau yellowing kev pheej hmoo piv rau ib leeg-ntsia hlau designs.
Deg tsis xws luag xws li txiv kab ntxwv tev kev ntxhib los mos los yog kab kab rov tav tshwm sim los ntawm qhov chaw tsis zoo calender yob. Txiv kab ntxwv tev tshwm sim thaum daim ntawv tsis txaus compressed ntawm yob, kho los ntawm kev kho cov nip siab. Kab kab rov tav qhia tias yob nto kab mob los yog qhov kub thiab txias hloov pauv- kev tu cov txheej txheem thiab kev txhim kho ntsuas kub kom tshem tawm cov teeb meem no.
Daim ntawv warping thaum lub sij hawm cia los yog thermoforming kab rov qab mus rau residual kev nyuaj siab los ntawm ceev ceev los yog tsis sib xws. Annealing daim ntawv ntawm 70-80℃rau 30-60 feeb tom qab tsim khoom txo cov kev ntxhov siab sab hauv. Qee cov tuam txhab lag luam koom nrog hauv online annealing seem ntawm lub calender thiab winder kom tsis txhob muaj teeb meem warping nkaus.
Cov lus nug nquag
Dab tsi thickness ntau npaum li cas PET extrusion tsim rau ntim daim ntaub ntawv?
PET daim ntawv extrusion feem ntau tsim cov khoom ntim ntawm 0.18mm txog 2.0mm thickness. Cov ntaub ntawv nyias nyias (0.18-0.5mm) haum rau daim ntaub ntawv npog thiab ntim ntim tau yooj yim, ntsuas nruab nrab (0.5-1.5mm) ua haujlwm feem ntau cov thawv ntim thermoformed thiab clamshells, thaum lub ntsuas hnyav (1.5-2.0mm) muab cov qauv nruj rau cov ntim ntim sib sib zog nqus. Cov cuab yeej tshwj xeeb tuaj yeem txuas ntxiv qhov no, tab sis lub qhov rais 0.2-2.0mm npog 95% ntawm daim ntawv thov ntim.
Yuav ua li cas recycled PET ua piv rau cov ntaub ntawv nkauj xwb nyob rau hauv extrusion?
RPET ua tiav los ntawm cov ntxaib niaj hnub no - ntsia hlau extruders nrog cov saw txuas ntxiv ua tiav 90-95% ntawm nkauj xwb PET cov khoom siv kho tshuab. Cov kev sib txawv tseem ceeb muaj xws li cov viscosity qis dua me ntsis (feem ntau 0.70-0.78 dl / g piv rau 0.80-0.84 dl / g rau nkauj xwb), muaj peev xwm rau cov xim me me, thiab muaj kev sib kis ntau ntxiv uas xav tau kev pom zoo dua. Rau feem ntau daim ntawv thov ntim tsis suav nrog cov ntim khoom ntim ultra-ntshiab, RPET muab kev ua haujlwm sib npaug ntawm tus nqi qis thiab cov ntaub ntawv pov thawj zoo ib puag ncig.
Cov nqi hluav taws xob twg yuav tsum cov tuam txhab xav tau rau PET daim ntawv ntau lawm?
Kev siv hluav taws xob sib txawv nrog cov cuab yeej siv thiab kev ua haujlwm. Cov kab hluav taws xob niaj hnub siv tau 0.25-0.35 kWh ib kilogram ntawm daim ntawv tsim, txhais mus rau $ 0.03-0.05 ib kg ntawm cov nqi hluav taws xob ntawm $ 0.12 / kWh. Cov txheej txheem qub nrog cov cuab yeej ziab qhuav tuaj yeem siv 0.5-0.6 kWh / kg, yuav luag ob npaug ntawm cov nqi hluav taws xob. Rau kev ua haujlwm nruab nrab uas tsim tau 10 metric tons txhua hnub, cov nqi hluav taws xob txhua xyoo yog li ntawm $ 90,000 txog $ 180,000 nyob ntawm cov khoom siv tau zoo.
Cov ntawv PET puas tuaj yeem tsim yam tsis tau ua ntej- ziab cov khoom?
Yog lawm, cov ntxaib siab tshaj - ntsia hlau extruders nrog siab - lub tshuab nqus tsev degassing tuaj yeem ua cov PET flakes ncaj qha yam tsis muaj cov cuab yeej ziab qhuav. Cov tshuab "qhuav-dawb" no tshem tawm cov dej noo thaum lub sij hawm extrusion los ntawm ntau-theem nqus tsev vacuum, txuag 2-4 teev thiab ntau lub zog xav tau los ntawm kev ziab ib txwm. Txawm li cas los xij, cov ntaub ntawv noo noo tseem cuam tshuam cov txiaj ntsig-flakes saum 0.3% noo noo yuav xav tau qee qhov kev txo qis ua ntej ua, thaum cov txheej txheem ib txwm xav tau qis dua 0.005% noo noo kom pom cov txiaj ntsig zoo.
PET Extrusion Equipment xaiv yuav tsum tau npaj muaj peev xwm
Ntau lawm ntim tsav cov cuab yeej sizing kev txiav txim siab. Cov neeg tsim khoom xav tau tsawg dua 5,000 kg txhua hnub tso zis tuaj yeem ua haujlwm tau zoo nrog kev cog lus ib zaug - ntsia hlau tshuab hauv 300-500 kg / teev. Nruab nrab- ntim kev ua haujlwm ua haujlwm 10-20 metric tons ib hnub tau txais txiaj ntsig los ntawm 1,000-1,500 kg / teev cov kab ntxaib-ntsia hlau sib npaug uas sib npaug ntawm kev ua haujlwm yooj yim. High-volume converters muab cov khoom noj khoom haus loj ua lag luam hauv 2,{15}} kg/hour industrial systems nrog inline thermoforming kom txo tau cov khoom siv.
Cov khoom siv versatility xav tau cuam tshuam rau kev xaiv technology. Cov tuam txhab tshwj xeeb tsuas yog ua cov nkauj xwb PET rau cov ntawv thov ntim kom pom tseeb yuav pom ib qho - ntsia hlau extruders txaus. Kev ua haujlwm uas siv cov khoom siv sib xyaw ua ke thiab cov khoom siv rov ua dua tshiab, lossis cov kev npaj rau yav tom ntej cov ntsiab lus rov ua dua tshiab, yuav tsum qhia meej ntxaib- ntsia hlau configurations txawm tias tus nqi pib siab dua- qhov kev ua kom yooj yim ua pov thawj rau kev nqis peev.
Cov khoom tshwj xeeb zoo rau cov khoom kawg txiav txim siab xav tau kev tswj hwm. Standard ntim daim ntawv thov zam ± 5% thickness variation thiab yooj yim pom kev soj ntsuam. Cov ntawv thov hwm zoo li cov khoom siv kho mob ntim khoom lossis cov tais hluav taws xob xav tau ± 2% kev tswj xyuas tuab, kev kuaj xyuas qhov tsis raug, thiab cov ntaub ntawv txheej txheem dav dav - yuav tsum muaj cov khoom siv hluav taws xob zoo uas ntxiv 20-30% rau cov khoom siv.
Qhov chaw txwv thiab kev sib koom ua ke yuav tsum muaj nyob rau hauv qhov system layout. Standalone extrusion kab tsim yob Tshuag rau off-qhov chaw thermoforming yuav tsum tau 40-60 meters ntev rau ib tug ua tiav system nrog rau cov khoom tuav. Inline systems qhov twg cov ntawv extruded pub ncaj qha rau hauv cov thermoformers nyob tsawg dua qhov chaw tab sis thov kom ceev ceev synchronization thiab tsis siv tshuab.
Kev txiav txim siab scalability yav tom ntej yuav tsum qhia txog kev xaiv khoom siv tam sim no. Modular kab tsim ua kom muaj peev xwm nce los ntawm qhov dav dav, thauj sai dua -offs, lossis ntxiv extruders yam tsis tau hloov cov khoom tseem ceeb. Txheeb xyuas cov motors loj, kev tswj xyuas muaj peev xwm tswj cov kev teeb tsa nthuav dav, thiab cov txheej txheem kev sib txuas ua kom yooj yim rau kev hloov kho yav tom ntej kev lag luam ntau dua li hloov tag nrho cov tshuab.
Ntsiab Cai
PET extrusion hloov cov resin rau hauv cov ntawv ntim los ntawm melting, sib sau, thiab txias txheej txheem ua tiav 0.18-2.0mm thicknesses rau ntau yam kev siv.
Ntxaib- ntsia hlau extruders tswj nrog 68% kev ua lag luam sib koom vim kev ua haujlwm zoo dua ntawm cov ntsiab lus siv dua tshiab thiab 15-20% kev txuag hluav taws xob ntau dua li cov kab ke ib txwm muaj
Recycled PET kev koom ua ke nce mus txog 50-100% hauv ntau daim ntawv thov, txhawb nqa kev lag luam ntim cov hom phiaj kev ruaj ntseg thaum txo cov nqi khoom $ 200-400 ib tuj
Kev tswj xyuas zoo tsom rau qhov viscosity intrinsic (0.80-0.90 dl / g pom), kev tswj qhov kub thiab txias hauv ± 2℃tolerances, thiab thickness tswj rau ± 3%
Kev loj hlob ntawm kev lag luam los ntawm $ 1.2 nphom khoom muag hauv 2024 txog $ 1.9 nphom los ntawm 2033 qhia txog kev lag luam peev hauv automation thiab lub zog- siv tshuab ua tau zoo