Muaj ntau txoj hauv kev ntawm TPU molding txheej txheem:txhaj tshuaj molding, tshuab moulding, compression molding, extrusion molding, thiab lwm yam, ntawm cov tshuaj molding yog feem ntau.
Kev ua haujlwm ntawm kev txhaj tshuaj molding yog ua tiav TPU rau hauv qhov xav tau, uas tau muab faib ua cov txheej txheem ua ntej molding, txhaj tshuaj thiab ejection hauv peb theem.
Muaj ob hom kev txhaj tshuaj molding tshuab, plunger hom thiab cov ntsia hlau hom, thiab cov ntsia hlau hom txhaj tshuaj molding tshuab raug pom zoo vim nws muaj peev xwm muab kev sib txawv ceev, plasticization thiab melting.
TPU Khoom Moulding Cov Cai
Qhov tseem ceeb tshaj plaws molding tej yam kev mob rau TPU yog qhov kub thiab txias, kev ntxhov siab thiab lub sij hawm uas cuam tshuam cov plasticizing ncig thiab txias.Cov txheej txheem no yuav cuam tshuam cov tsos thiab kev ua haujlwm ntawm TPU ib feem.Yog tias siv cov xwm txheej tuav tau zoo, qhov tshwm sim yuav tsum yog cov khoom zoo ib yam dawb mus rau beige qhov chaw.
Kub
Cov qib kub uas yuav tsum tau tswj nyob rau hauv TPU molding txheej txheem yog lub chim kub theem, lub nozzle kub theem thiab pwm kub.Thawj ob qhov kub thiab txias feem ntau cuam tshuam rau plasticization thiab ntws ntawm TPU, thiab tom kawg kub cuam tshuam qhov txias ntawm TPU.
a.Barrel kub theem
Qhov kev xaiv ntawm qhov kub thiab txias theem yog txuam nrog kev ruaj khov ntawm TPU.Lub melt kub theem ntawm TPU nrog siab solidity yog siab, yog li qhov kawg ntawm lub tshuab kub xav tau ntau dua.Qhov ntsuas kub ntau rau TPU tuav yog 177 ~ 232 ℃.
Kev ncig ntawm qhov ntsuas kub yog feem ntau los ntawm sab hopper mus rau lub nozzle, maj mam boosting, kom TPU kub theem nce maj mam ua kom tiav lub hom phiaj ntawm kev ua kom zoo ib yam.
b.Nozzle kub
Nws feem ntau yog me ntsis tsawg dua qhov zoo tshaj qhov ntsuas kub kom tsis txhob yaj TPU drool los ntawm lub nozzle hauv qhov ncaj-dhau.
Yog hais tias tus kheej-locking nozzle yog siv los tshem tawm salivation, lub nozzle kub yuav tswj nyob rau hauv lub optimum kub theem ntawm lub chim.
c.Pwm kub
Cov pwm kub muaj qhov cuam tshuam zoo rau cov khoom siv sab hauv thiab cov khoom zoo ntawm TPU.Nws cov yam ntxwv cuam tshuam yog txiav txim siab los ntawm ntau yam xws li crystallinity ntawm TPU thiab qhov loj ntawm cov khoom.
Pwm qhov kub thiab txias yog ib txwm tswj los ntawm qhov ntsuas kub tsis tu ncua xws li dej, thiab pwm thiab pwm pwm kub yuav tsum tau siab dua rau TPU nrog siab hardness thiab siab crystallinity.TPU khoom pwm kub yog feem ntau nyob rau hauv 10 ~ 60 ℃.
Yog tias pwm thiab mildew kub theem txo, uas yuav ua rau tom qab shrinkage ntawm cov khoom thiab kev hloov hauv efficiency.
Siab
Cov txheej txheem txhaj tshuaj yog siab suav nrog plasticizing siab (rov qab siab) thiab txhaj tshuaj.
Cov txheej txheem txhaj tshuaj yog kev ntxhov siab suav nrog plasticizing siab (rov qab siab) thiab txhaj tshuaj siab.
Txhim kho lub nraub qaum yuav nce qhov kub thiab txias, txo cov plasticizing tus nqi, ua kom lub melting kub theem tsis sib xws, sib tov cov khoom ntxoov ntxoo uniformly, thiab tso cov roj thaw, tab sis nws yeej yuav txuas ntxiv lub voj voog molding.Kev ntxhov siab tom qab ntawm TPU feem ntau yog 0.3 txog 4 MPa.
Txhaj tshuaj tiv thaiv yog lub siab ntsig txog TPU los ntawm sab saum toj ntawm cov ntsia hlau, thiab nws txoj haujlwm yog kom dhau qhov kev tawm tsam ntawm TPU los ntawm lub thoob mus rau kab noj hniav, muab tus nqi ntawm yaj loading, thiab me me yaj.
TPU ndlwg tsis kam thiab pwm thiab mildew filling tus nqi yog ze ze rau thaw viscosity, thiab yaj viscosity yog ncaj qha ntsig txog TPU hardness thiab yaj kub, uas yog, yaj viscosity tsis tsuas yog xam los ntawm qhov kub thiab txias, kuj tsim los ntawm TPU lub solidity. .
Kev txhaj tshuaj siab ntawm TPU feem ntau yog 20 ~ 110MPa.qhov tuav kev ntxhov siab yuav tsum ua nrog ib nrab ntawm kev txhaj tshuaj, thiab lub siab rov qab yuav tsum tau teev tseg hauv qab 1.4 MPa kom TPU plasticized sib npaug.
Sijhawm
Lub sijhawm xav tau los ua kom tiav cov txheej txheem txhaj tshuaj yog hu ua txhaj tshuaj molding voj voog.
Lub voj voog molding muaj xws li pwm thiab mildew filling lub sij hawm, tuav lub sij hawm, lub sij hawm txias thiab ntau lwm lub sij hawm (pwm thiab mildew qhib, pwm tso, pwm kaw, thiab hais txog), uas ncaj qha cuam tshuam rau kev ua hauj lwm efficiency thiab pab kiag li lawm daim ntawv thov.
TPU txhaj tshuaj molding voj voog yog feem ntau txiav txim siab los ntawm solidity, ib feem thickness thiab cov khoom yuav tsum tau, TPU molding voj voog kuj tseem txuas nrog pwm kub theem.
Txhaj tus nqi
Tus nqi txhaj tshuaj feem ntau txiav txim siab los ntawm kev teeb tsa ntawm TPU txhaj tshuaj ua cov khoom.Cov khoom lag luam nrog lub ntsej muag tuab yuav tsum tau txhaj tshuaj qis dua, thaum lub ntsej muag slim kawg xav tau kev txhaj tshuaj sai.
Tom qab kev kho mob ntawm TPU txhaj tshuaj molded khoom
TPU vim tsis sib npaug ntawm cov yas hauv lub thoob lossis cov nqi cua txias sib txawv hauv cov pwm kab noj hniav, feem ntau tsim cov txheej txheem tsis sib xws, kev sib dhos thiab kev cog lus, ua rau muaj qhov nro sab hauv ntawm cov khoom, uas yog qhov tseem ceeb hauv cov khoom tuab tuab lossis cov khoom siv nrog hlau inserts.
Hauv kev khaws cia thiab kev siv, cov khoom uas muaj kev ntxhov siab sab hauv thiab kev ntxhov siab feem ntau tawm tsam nrog cov cuab yeej cuab tam puas tsuaj, nto silvering thiab deformation thiab splitting.
Kev pabcuam rau cov teebmeem no hauv kev tsim khoom yog ua kom cov khoom tawv.Annealing kub theem nyob ntawm qhov ruaj khov ntawm TPU txhaj tshuaj tsim cov khoom, siab firmness ntawm cov khoom annealing kub yog ntxiv dua, tsis tshua muaj solidity kub kuj txo;kim heev qhov kub thiab txias yuav ua rau cov khoom warp los yog contortion, raws li zoo raws li tsis tshua muaj mus cuag lub hom phiaj ntawm tshem tawm puab kev ntxhov siab vim thiab kev ntxhov siab vim.
TPU annealing yuav tsum tau siv rau lub sij hawm ntev ntawm qhov kub thiab txias, cov khoom uas txo firmness tuaj yeem muab tso rau hauv qhov kub thiab txias rau ntau lub lis piam kom ua tiav qhov kev ua tau zoo tshaj plaws.
Annealing tuaj yeem ua tau nyob rau hauv qhov cub cua kub, nco ntsoov qhov kev tso kawm ntawm qhov chaw kom tsis txhob muaj cov neeg zej zog tau kub dhau thiab deformation ntawm cov khoom.Annealing tuaj yeem tsis tsuas yog tshem tawm ntawm qhov nro sab hauv, tab sis kuj tseem txhawb nqa cov neeg kho tshuab tsev.
TPU khoom inlay txhaj molding
Txhawm rau ua kom tau raws li qhov xav tau ntawm kev teeb tsa thiab siv lub zog, TPU cov khoom tau nruab nrog cov hlau ntxig.Cov hlau ntxig yog thawj zaug nyob rau hauv qhov chaw ruaj khov hauv kev txhaj tshuaj pwm thiab mildew thiab tom qab ntawd txhaj rau hauv tag nrho cov khoom.
TPU cov khoomnrog cov ntxig ntxig tsis ruaj ntseg rau TPU vim qhov sib txawv hauv cov tsev thermal thiab kev sib cog lus ntawm cov hlau ntxig thiab TPU.Qhov kev xaiv rau slove qhov teeb meem no yog preheat cov hlau ntxig, vim qhov tseeb tias tom qab preheating cov ntxig ntxig rau qhov kub thiab txias. Qhov sib txawv ntawm cov thaw, yog li ntawd lub thaw nyob ib ncig ntawm lub insert yuav txias dua maj mam thaum lub sij hawm txhaj tshuaj, lub contraction yog ntau npaum li cas sib txawv, thiab ib tug tej yam kom muaj nuj nqis ntawm cov khoom kub contraction tshwm sim los nres ntau sab hauv kev nyuaj siab nyob ib ncig ntawm lub insert.
TPU inlay molding yog ib qho yooj yim kom tau txais daim ntawv cog lus ruaj khov, cov ntxig tuaj yeem coated nrog cov nplaum, tom qab ntawd rhaub ntawm 120 ° C thiab tom qab txhaj tshuaj.Tsis tas li ntawd, nws yuav tsum nco ntsoov tias TPU siv yuav tsum tsis muaj roj nplua nyeem.
Rov qab siv cov khoom siv rov ua dua TPU
Hauv cov txheej txheem TPU, cov ntaub ntawv pov tseg xws li cov kwj dej loj, cov channel manifold thiab cov khoom tsis tsim nyog tuaj yeem rov ua dua thiab rov siv dua.
Los ntawm cov txiaj ntsig kev kwv yees, cov khoom siv rov ua dua yog 100 feem pua tsis sib xyaw nrog cov khoom tshiab, yog tias cov khoom siv dag zog ntawm qhov poob qis tsis loj heev, tuaj yeem siv tau tag nrho, tab sis kom tswj tau lub cev thiab cov khoom siv kho mob thiab kev txhaj tshuaj ntawm qib zoo tshaj plaws, pom zoo feem ntawm cov khoom siv rov ua dua hauv 25% mus rau 30% yog qhov zoo.
Nws yuav tsum raug sau tseg tias cov khoom siv rov ua dua tshiab thiab cov khoom siv tshiab ntawm tib hom kev qhia tshwj xeeb, tau kis kab mob los yog raug tshem tawm kom tsis txhob siv cov khoom siv rov ua dua tshiab, cov khoom siv rov ua dua yuav tsum tsis txhob khaws cia ntev dhau, qhov zoo tshaj plaws tam sim ntawd granulated, qhuav siv. .Lub yaj viscosity ntawm cov khoom siv rov qab feem ntau yuav tsum tau txo qis, thiab cov txheej txheem molding yuav tsum tau kho.
Cov ntsiab lus
Kab lus no tsom xam cov yam ntxwv ntawm TPU cov ntaub ntawv, molding tej yam kev mob, raws li zoo raws li txoj kev molding, uas yuav cia siab tias yuav pab tau koj TPU khoom project.
Kab lus hais txog TPUovermoldingthiab TPU ntxig molding txheej txheem, uas yuav tsum tau muaj kev paub ntau ntawm kev txhaj tshuaj pwm cov neeg muag khoom thiab cov khoom siv tshuaj molding khoom.
Yog tias koj muaj ib txoj haujlwm uas muaj ob txoj haujlwm no, nws raug nquahu kom paub meej tias lub Hoobkas txhaj tshuaj pwm thiab txhaj tshuaj molding khoom Hoobkas muaj kev paub txog kev ua cov khoom zoo sib xws los xyuas kom meej tias kev ua haujlwm zoo ntawm qhov project.
Yog koj xav tau kev pab thovtiv tauj peb!
Post lub sij hawm: Apr-23-2024