01
Cov khoom muaj kev nyuaj siab
Kev nyuaj siab ntawm cov khoom siv TPU tuaj yeem txo qhov zoo thiab lub zog ntawm cov khoom tiav, thiab tseem cuam tshuam rau cov tsos ntawm cov khoom.Qhov ua rau muaj kev nyuaj siab yog cuam tshuam nrog cov khoom siv raw siv, molding tshuab, thiab pwm tsim, xws li shrinkage tus nqi ntawm raw cov ntaub ntawv, txhaj tshuaj siab, pwm tsim, thiab cov khoom cua txias.
Table 1 qhia txog qhov ua tau thiab kev kho mob ntawm kev nyuaj siab
Cov txheej txheem los tuav qhov ua rau tshwm sim
Pwm pub tsis txaus ua rau cov khoom noj ntau ntxiv
High melting kub txo cov melting kub
Lub sijhawm txhaj tshuaj luv luv ua rau lub sijhawm txhaj tshuaj
Tsis tshua muaj kev txhaj tshuaj nce siab txhaj tshuaj
Tsis txaus clamping siab, tsim nyog nce lub clamping siab
Kev kho tsis raug ntawm pwm kub kom haum rau qhov kub thiab txias
Kho qhov loj los yog txoj hauj lwm ntawm pwm inlet rau asymmetric rooj vag hloov
Cov pa paug tsis zoo nyob rau hauv qhov chaw concave, nrog cov qhov tso pa tso rau hauv qhov chaw concave
Lub sij hawm txias pwm tsis txaus ua rau lub sijhawm txias
Hnav thiab hloov cov ntsia hlau check nplhaib
Tsis sib npaug thickness ntawm cov khoom nce txhaj tshuaj
02
Cov khoom muaj npuas
Thaum lub sij hawm txhaj tshuaj molding txheej txheem, cov khoom tej zaum yuav tshwm sim nrog ntau npuas, uas yuav cuam tshuam rau lawv lub zog thiab txhua yam khoom, thiab kuj zoo heev cuam tshuam cov tsos ntawm cov khoom.Feem ntau, thaum lub thickness ntawm cov khoom yog tsis sib xws los yog cov pwm muaj protruding tav, qhov txias ceev ntawm cov khoom nyob rau hauv pwm yog txawv, uas ua rau uneven shrinkage thiab tsim ntawm npuas.Yog li ntawd, tshwj xeeb yuav tsum tau them nyiaj rau pwm tsim.
Tsis tas li ntawd, cov ntaub ntawv raw tsis qhuav tag thiab tseem muaj qee cov dej, uas decomposes rau hauv cov roj thaum rhuab thaum melting, ua rau nws yooj yim rau nkag mus rau hauv pwm kab noj hniav thiab tsim npuas.Yog li thaum npuas tshwm hauv cov khoom, cov hauv qab no tuaj yeem kuaj xyuas thiab kho.
Table 2 qhia txog qhov ua tau thiab txoj kev kho cov npuas
Cov txheej txheem los tuav qhov ua rau tshwm sim
Cov ntaub ntawv ntub thiab huv si ci
Tsis txaus txhaj tshuaj ntsuas kub, txhaj tshuaj siab, thiab lub sijhawm txhaj tshuaj
Kev txhaj tshuaj nrawm heev txo qhov kev txhaj tshuaj nrawm
Cov khoom siv raw kub ntau dhau yuav txo qhov kub thiab txias
Tsawg rov qab siab, nce rov qab siab mus rau theem tsim nyog
Hloov cov qauv tsim los yog dhau txoj hauj lwm ntawm cov khoom tiav vim yog cov thickness ntau dhau ntawm qhov tiav, tav lossis kab
Kev hla ntawm lub rooj vag me me dhau, thiab lub rooj vag thiab kev nkag tau nce ntxiv
Tsis sib npaug pwm kub hloov mus rau cov pwm pwm kub
Cov ntsia hlau retreats ceev heev, txo cov ntsia hlau retreating ceev
03
Cov khoom muaj kab nrib pleb
Kev tawg yog qhov tshwm sim tuag taus hauv cov khoom TPU, feem ntau tshwm sim raws li cov kab nrib pleb zoo li cov kab nrib pleb ntawm cov khoom.Thaum cov khoom muaj cov npoo ntse thiab cov fab, cov kab nrib pleb me me uas tsis yooj yim pom feem ntau tshwm sim hauv cheeb tsam no, uas yog qhov txaus ntshai heev rau cov khoom.Cov laj thawj tseem ceeb ntawm cov kab nrib pleb tshwm sim thaum lub sij hawm tsim khoom yog raws li hauv qab no:
1. Nyuaj hauv demolding;
2. Tshaj dhau;
3. Cov pwm kub qis dhau lawm;
4. Cov khoom siv tsis raug.
Txhawm rau kom tsis txhob muaj kab nrib pleb los ntawm kev demolding tsis zoo, pwm tsim qhov chaw yuav tsum muaj qhov demolding txoj kab nqes txaus, thiab qhov loj, txoj hauj lwm, thiab daim ntawv ntawm tus pin ejector yuav tsum tsim nyog.Thaum ejecting, demolding kuj ntawm txhua feem ntawm cov khoom tiav yuav tsum yog uniform.
Overfilling yog tshwm sim los ntawm kev txhaj tshuaj ntau dhau lossis ntsuas cov khoom siv ntau dhau, ua rau muaj kev ntxhov siab ntau dhau ntawm cov khoom thiab ua rau tawg thaum lub sijhawm demolding.Nyob rau hauv lub xeev no, qhov deformation ntawm pwm accessories kuj nce, ua rau nws nyuaj rau demould thiab txhawb qhov tshwm sim ntawm cov kab nrib pleb (los yog txawm tawg).Nyob rau lub sijhawm no, qhov kev txhaj tshuaj yuav tsum tau txo qis kom tsis txhob overfilling.
Qhov chaw ntawm lub rooj vag feem ntau ua rau muaj kev ntxhov siab ntau dhau ntawm sab hauv, thiab thaj tsam ntawm lub rooj vag yog qhov yooj yim rau embrittlement, tshwj xeeb tshaj yog nyob rau hauv lub rooj vag ncaj nraim, uas yog nquag tawg vim muaj kev ntxhov siab sab hauv.
Table 3 qhia txog qhov ua tau thiab kev kho cov kab nrib pleb
Cov txheej txheem los tuav qhov ua rau tshwm sim
Kev txhaj tshuaj ntau dhau yuav txo qhov kev txhaj tshuaj, lub sijhawm, thiab ceev
Kev txo qis hauv raw khoom ntsuas nrog cov fillers
Qhov kub ntawm cov khoom molten lub tog raj kheej yog tsawg dhau, ua rau qhov kub ntawm cov khoom molten lub tog raj kheej
Tsis txaus demolding angle Kho demolding lub kaum sab xis
Txoj kev ejection tsis raug rau kev kho pwm
Kho lossis hloov kev sib raug zoo ntawm cov hlau embedded qhov chaw thiab pwm
Yog tias pwm kub tsawg dhau, ua kom pwm pwm kub
Lub rooj vag me dhau los yog daim ntawv hloov kho tsis raug
Ib nrab demolding lub kaum sab xis tsis txaus rau kev kho pwm
Kho pwm nrog demolding chamfer
Cov khoom tiav tsis tuaj yeem sib npaug thiab tshem tawm los ntawm kev kho pwm
Thaum demolding, pwm tsim lub tshuab nqus tsev phenomenon.Thaum qhib lossis ejecting, cov pwm maj mam puv nrog cua
04
Cov khoom siv warping thiab deformation
Yog vim li cas rau warping thiab deformation ntawm TPU txhaj tshuaj molded cov khoom yog luv luv lub sij hawm txias txias, siab pwm kub, unevenness, thiab asymmetric flow channel system.Yog li ntawd, hauv kev tsim pwm, cov ntsiab lus hauv qab no yuav tsum zam kom ntau li ntau tau:
1. Lub thickness sib txawv nyob rau hauv tib lub yas yog loj heev;
2. Muaj ntau lub kaum ntse ntse;
3. Qhov chaw tsis muaj luv luv, ua rau muaj qhov sib txawv ntawm qhov tuab thaum tig;
Tsis tas li ntawd, nws tseem yog ib qho tseem ceeb los teeb tsa tus naj npawb tsim nyog ntawm ejector pins thiab tsim kom muaj cov cua txias kom tsim nyog rau cov pwm kab noj hniav.
Table 4 qhia txog qhov ua tau thiab kev kho mob ntawm warping thiab deformation
Cov txheej txheem los tuav qhov ua rau tshwm sim
Ntxiv lub sij hawm txias thaum cov khoom tsis txias thaum lub sij hawm demolding
Cov duab thiab thickness ntawm cov khoom yog asymmetrical, thiab molding tsim yog hloov los yog ntxiv ribs ntxiv.
Kev sau ntau dhau yuav txo qis kev txhaj tshuaj, ceev, sijhawm, thiab cov khoom siv raw
Hloov lub rooj vag lossis nce cov rooj vag vim qhov tsis sib xws ntawm lub rooj vag
Unbalanced hloov ntawm lub ejection system thiab txoj hauj lwm ntawm lub ejection ntaus ntawv
Kho cov pwm kub kom sib npaug vim pwm tsis sib xws
Ntau dhau buffering ntawm raw khoom txo buffering ntawm raw khoom
05
Cov khoom muaj qhov kub hnyiab los yog kab dub
Focal me ntsis lossis kab txaij dub hais txog qhov tshwm sim ntawm cov pob dub lossis cov kab txaij dub ntawm cov khoom, uas feem ntau tshwm sim vim tsis zoo thermal stability ntawm raw cov ntaub ntawv, tshwm sim los ntawm lawv thermal decomposition.
Qhov kev tiv thaiv zoo los tiv thaiv qhov tshwm sim ntawm qhov kub hnyiab los yog kab dub yog los tiv thaiv cov khoom siv raw kub hauv lub laujkaub melting los ntawm siab dhau lawm thiab ua rau lub sijhawm txhaj tshuaj.Yog tias muaj khawb lossis qhov khoob ntawm phab ntsa sab hauv lossis ntsia hlau ntawm lub tog raj kheej yaj, qee cov khoom siv raw yuav raug txuas, uas yuav ua rau thermal decomposition vim overheating.Tsis tas li ntawd, kos li qub tuaj yeem ua rau thermal decomposition vim khaws cov khoom siv raw.Yog li ntawd, thaum siv cov ntaub ntawv uas muaj viscosity siab los yog yooj yim decomposition, yuav tsum tau them tshwj xeeb mloog mus rau tiv thaiv qhov tshwm sim ntawm burnt me ntsis los yog kab dub.
Table 5 qhia txog qhov ua tau thiab txoj kev kho mob ntawm focal me ntsis lossis kab dub
Cov txheej txheem los tuav qhov ua rau tshwm sim
Cov khoom siv raw kub ntau dhau yuav txo qhov kub thiab txias
Kev txhaj tshuaj siab dhau lawm kom txo qhov kev txhaj tshuaj
Ntsia hlau ceev ceev heev Txo cov ntsia hlau ceev
Kho qhov eccentricity ntawm cov ntsia hlau thiab cov khoom siv yeeb nkab
Kev sib txhuam thaum tshav kub kub tu tshuab
Yog hais tias lub qhov nozzle me me dhau los yog qhov kub thiab txias dhau lawm, kho qhov aperture lossis kub dua
Overhaul lossis hloov lub raj cua sov nrog cov khoom siv hluav taws kub kub (qhov kub-kub quenching)
Lim lossis hloov cov khoom sib xyaw ua ke dua
Cov pa tawm tsis zoo ntawm cov pwm thiab tsim nyog nce qhov tso pa tawm
06
Cov khoom muaj cov npoo ntxhib
Cov npoo ntxhib yog ib qho teeb meem tshwm sim hauv cov khoom TPU.Thaum lub siab ntawm cov khoom siv raw hauv cov pwm kab noj hniav yog siab dhau lawm, qhov ua rau qhov sib cais yog ntau dua li qhov ntsuas phoo, yuam kom cov pwm qhib, ua rau cov khoom nyoos dhau mus thiab tsim cov burrs.Tej zaum yuav muaj ntau yam laj thawj rau kev tsim cov burrs, xws li teeb meem nrog cov khoom siv raw, kev txhaj tshuaj molding tshuab, kev sib dhos tsis raug, thiab txawm tias pwm nws tus kheej.Yog li, thaum txiav txim siab qhov ua rau ntawm burrs, nws yog ib qho tsim nyog yuav tsum tau mus los ntawm qhov yooj yim mus rau qhov nyuaj.
1. Tshawb xyuas seb cov khoom siv raw puas tau ua kom huv si, seb puas muaj cov impurities sib xyaw, seb cov khoom sib txawv ntawm cov khoom sib txawv puas yog sib xyaw, thiab seb cov viscosity ntawm cov khoom siv puas raug cuam tshuam;
2. Kev kho kom raug ntawm lub siab tswj qhov system thiab kev txhaj tshuaj ceev ntawm lub tshuab txhaj tshuaj molding yuav tsum ua raws li kev siv lub tshuab xauv;
3. Txawm hais tias muaj kev hnav ntawm qee qhov ntawm cov pwm, seb lub qhov tso tawm puas raug thaiv, thiab seb qhov ntws channel tsim tsim nyog;
4. Xyuas seb puas muaj qhov sib txawv ntawm qhov sib luag ntawm cov qauv txhaj tshuaj molding tshuab, seb lub zog faib ntawm cov qauv rub tus pas nrig puas zoo ib yam, thiab seb lub nplhaib kos lub nplhaib thiab cov phom yaj puas hnav.
Table 6 qhia txog qhov ua tau thiab txoj kev kho mob ntawm burrs
Cov txheej txheem los tuav qhov ua rau tshwm sim
Cov ntaub ntawv ntub thiab huv si ci
Cov ntaub ntawv nyoos muaj kab mob.Tshawb xyuas cov khoom siv raw thiab cov impurities kom paub qhov chaw ntawm kev sib kis
Raw khoom viscosity siab dhau los yog tsawg dhau.Tshawb xyuas cov viscosity ntawm cov khoom siv raw thiab kev ua haujlwm ntawm lub tshuab txhaj tshuaj molding
Txheeb xyuas tus nqi siab thiab kho yog tias lub xauv lub zog qis dhau
Tshawb xyuas cov nqi teev thiab kho yog tias qhov kev txhaj tshuaj thiab kev tswj xyuas qhov siab siab dhau lawm
Txhaj siab hloov dua siab tshiab lig Kos qhov hloov siab los ntseeg txoj hauj lwm thiab kho qhov hloov dua siab tshiab thaum ntxov
Tshawb xyuas thiab kho qhov ntws tswj valve yog tias qhov kev txhaj tshuaj nrawm dhau los yog qeeb dhau
Xyuas lub tshuab hluav taws xob cua sov thiab ntsia hlau ceev yog tias qhov kub thiab txias dhau los yog qis dhau
Tsis txaus rigidity ntawm lub template, tshuaj xyuas ntawm lub xauv quab yuam thiab kev hloov kho
Kho los yog hloov qhov hnav thiab tsim kua muag ntawm lub melting chim, ntsia hlau los yog check nplhaib
Kho lossis hloov qhov hnav rov qab siab valve
Txheeb xyuas qhov nro pas nrig rau qhov tsis sib npaug ntawm lub zog xauv
Template tsis nyob rau hauv parallel
Ntxuav cov pwm tso qhov qhov thaiv
Pwm hnav kev tshuaj xyuas, pwm siv zaus thiab xauv lub zog, kho lossis hloov
Xyuas seb qhov chaw txheeb ze ntawm pwm yog offset vim tsis sib haum pwm splitting, thiab kho nws dua
Tsim thiab hloov kho pwm khiav kev kuaj xyuas qhov tsis sib xws
Xyuas thiab kho lub tshuab hluav taws xob cua sov kom tsis muaj pwm kub thiab cua sov tsis sib xws
07
Cov khoom muaj nplaum pwm (nqus rau demould)
Thaum TPU tau ntsib cov khoom lag luam thaum lub sijhawm txhaj tshuaj molding, thawj qhov kev txiav txim siab yuav tsum yog seb qhov kev txhaj tshuaj siab lossis tuav lub siab dhau lawm.Vim tias kev txhaj tshuaj ntau dhau tuaj yeem ua rau cov khoom noj ntau dhau, ua rau cov khoom siv raw ua rau lwm qhov khoob thiab ua rau cov khoom daig hauv pwm kab noj hniav, ua rau nyuaj rau demolding.Thib ob, thaum qhov kub ntawm lub melting chim siab dhau lawm, nws tuaj yeem ua rau cov khoom siv raw rau decompose thiab deteriorate nyob rau hauv tshav kub, ua rau fragmentation los yog puas thaum lub sij hawm demolding txheej txheem, ua rau pwm sticking.Raws li cov teeb meem cuam tshuam nrog pwm, xws li cov chaw nres nkoj pub mis tsis sib haum uas ua rau cov khoom tsis sib xws, nws tuaj yeem ua rau pwm ua rau lub sijhawm demolding.
Table 7 qhia txog qhov ua tau thiab cov kev kho mob ntawm cov pwm nplaum
Cov txheej txheem los tuav qhov ua rau tshwm sim
Kev txhaj tshuaj ntau dhau los yog qhov kub ntawm lub raj kub yuav txo qhov kev txhaj tshuaj siab lossis melting chim kub
Lub sijhawm tuav ntau dhau yuav txo lub sijhawm tuav
Kev ua kom txias tsis txaus ua rau lub sijhawm ua kom txias txias
Kho cov pwm kub thiab qhov ntsuas kub ntawm ob sab yog tias pwm kub siab dhau lossis qis dhau
Muaj ib tug demolding chamfer nyob rau hauv lub pwm.Kho cov pwm thiab tshem tawm lub chamfer
Qhov tsis sib xws ntawm cov pwm pub chaw nres nkoj txwv cov khoom siv raw, ua kom nws ze li sai tau rau lub ntsiab channel
Kev tsim pwm tsis zoo ntawm cov pa tawm thiab tsim nyog ntawm kev tsim cov qhov tso pa tawm
Pwm core misalignment hloov pwm core
Cov pwm saum npoo yog du heev los txhim kho pwm nto
Thaum tsis muaj tus neeg sawv cev tso tawm tsis cuam tshuam rau kev ua haujlwm thib ob, siv tus neeg tso tawm
08
Txo cov khoom toughness
Toughness yog lub zog xav tau los rhuav tshem cov khoom.Lub hauv paus tseem ceeb uas ua rau txo qhov tawv nqaij muaj xws li cov khoom siv raw, cov khoom siv rov ua dua tshiab, kub, thiab pwm.Qhov txo qis hauv cov khoom siv tawv yuav cuam tshuam ncaj qha rau lawv lub zog thiab cov khoom siv kho tshuab.
Table 8 qhia txog qhov ua tau thiab txoj kev kho mob kom txo tau cov tawv nqaij
Cov txheej txheem los tuav qhov ua rau tshwm sim
Cov ntaub ntawv ntub thiab huv si ci
Kev sib xyaw ntau dhau ntawm cov khoom siv rov ua dua yuav txo qhov sib xyaw ntawm cov khoom siv rov ua dua tshiab
Kho qhov kub thiab txias yog tias nws siab dhau lossis qis dhau
Lub rooj vag pwm me dhau lawm, ua kom lub rooj vag loj
Ntev ntev ntawm cov pwm qhov rooj sib koom ua ke txo qhov ntev ntawm qhov rooj sib koom ua ke
Cov pwm kub yog tsawg dhau, ua rau pwm kub nce
09
Tsis txaus filling ntawm cov khoom
Kev sau tsis txaus ntawm TPU cov khoom yog hais txog qhov tshwm sim uas cov khoom molten tsis txaus ntws los ntawm cov ces kaum ntawm lub thawv tsim.Yog vim li cas rau kev sau tsis txaus suav nrog kev teeb tsa tsis raug ntawm kev tsim, tsim tsis tiav thiab tsim cov pwm, thiab cov nqaij tuab thiab nyias phab ntsa ntawm cov khoom tsim.Cov kev tiv thaiv nyob rau hauv cov nqe lus ntawm molding tej yam kev mob yog ua kom kub ntawm cov ntaub ntawv thiab pwm, nce txhaj tshuaj, txhaj ceev, thiab txhim kho fluidity ntawm cov ntaub ntawv.Nyob rau hauv cov nqe lus ntawm pwm, qhov luaj li cas ntawm tus khiav los yog khiav yuav nce, los yog txoj hauj lwm, qhov luaj li cas, kom muaj nuj nqis, thiab lwm yam ntawm tus khiav yuav tsum tau kho thiab hloov kho kom zoo ndlwg ntawm molten cov ntaub ntawv.Tsis tas li ntawd, txhawm rau kom ntseeg tau tias qhov khiav tawm ntawm cov roj sib txawv hauv cov chaw tsim, pa thaiv cov chaw tuaj yeem tsim nyob rau ntawm cov chaw tsim nyog.
Table 9 qhia txog qhov ua tau thiab txoj kev kho mob ntawm cov khoom tsis txaus
Cov txheej txheem los tuav qhov ua rau tshwm sim
Cov khoom tsis txaus ua rau cov khoom siv ntxiv
Premature solidification ntawm cov khoom kom nce pwm kub
Qhov kub ntawm cov khoom molten lub tog raj kheej yog tsawg dhau, ua rau qhov kub ntawm cov khoom molten lub tog raj kheej
Tsis tshua muaj kev txhaj tshuaj nce siab txhaj tshuaj
Kev txhaj tshuaj maj mam nce kev txhaj tshuaj nrawm
Lub sijhawm txhaj tshuaj luv luv ua rau lub sijhawm txhaj tshuaj
Tsawg los yog tsis sib xws pwm hloov kho
Tshem tawm thiab ntxuav lub nozzle los yog funnel blockage
Kev kho tsis raug thiab kev hloov ntawm lub rooj vag txoj haujlwm
Me me thiab loj ntws channel
Ua kom qhov loj me ntawm qhov chaw nres nkoj sprue lossis dhau qhov chaw nres nkoj los ntawm kev nce qhov loj ntawm sprue lossis overflow chaw nres nkoj
Hnav thiab hloov cov ntsia hlau check nplhaib
Cov pa roj hauv qhov chaw tsim tsis tau tso tawm thiab lub qhov tso tawm tau ntxiv rau ntawm qhov chaw tsim nyog
10
Cov khoom muaj ib txoj kab sib txuas
Ib txoj kab sib txuas yog ib txoj kab nyias uas tsim los ntawm kev sib koom ua ke ntawm ob lossis ntau txheej ntawm cov khoom molten, feem ntau hu ua kab vuam.Cov kab sib txuas tsis tsuas yog cuam tshuam rau qhov zoo ntawm cov khoom, tab sis kuj cuam tshuam nws lub zog.Cov laj thawj tseem ceeb rau qhov tshwm sim ntawm cov kab sib txuas yog:
1. Hom ntws ntawm cov ntaub ntawv tshwm sim los ntawm cov duab ntawm cov khoom (pwm qauv);
2. Tsis zoo confluence ntawm molten cov ntaub ntawv;
3. Huab cua, volatiles, los yog cov ntaub ntawv refractory yog sib xyaw ntawm cov khoom siv molten.
Ua kom qhov kub thiab txias ntawm cov khoom thiab pwm tuaj yeem txo qhov kev sib txuas.Nyob rau tib lub sijhawm, hloov txoj haujlwm thiab qhov ntau ntawm lub rooj vag kom txav txoj haujlwm ntawm txoj hlua khi mus rau lwm qhov chaw;Los yog teem lub qhov tso rau hauv qhov chaw fusion kom tshem tawm cov huab cua thiab cov khoom tsis haum rau hauv cheeb tsam no;Xwb, teeb tsa lub pas dej ua ke nyob ze ntawm qhov fusion, txav cov kab sib txuas mus rau lub pas dej ntws, thiab txiav nws tawm yog qhov kev ntsuas zoo los tshem tawm cov kab sib txuas.
Table 10 qhia txog qhov ua tau thiab siv txoj hauv kev ntawm kev sib xyaw ua ke
Cov txheej txheem los tuav qhov ua rau tshwm sim
Kev txhaj tshuaj tsis txaus thiab lub sijhawm nce kev txhaj tshuaj thiab lub sijhawm
Kev txhaj tshuaj nrawm dhau qeeb Ua kom nrawm nrawm
Ua kom qhov kub ntawm cov yaj yaj thaum lub melt kub yog tsawg
Tsawg rov qab siab, qeeb ntsia hlau nrawm Ua kom rov qab siab, ntsia hlau ceev
Txoj haujlwm tsis zoo ntawm lub rooj vag, lub rooj vag me me thiab cov neeg khiav dej num, hloov lub rooj vag txoj hauj lwm los yog kho pwm inlet loj
Cov pwm kub yog tsawg dhau, ua rau pwm kub nce
Kev kho ceev ntawm cov ntaub ntawv ntau dhau txo qhov kev kho ceev ntawm cov ntaub ntawv
Cov khoom tsis zoo fluidity ua rau qhov kub ntawm cov yaj yaj thiab txhim kho cov khoom fluidity
Cov khoom muaj hygroscopicity, nce qhov tso pa tawm, thiab tswj cov khoom zoo
Yog tias huab cua hauv pwm tsis tso tawm kom zoo, ua kom lub qhov tso pa tawm lossis xyuas seb lub qhov tso tawm puas raug thaiv.
Cov ntaub ntawv nyoos tsis huv lossis sib xyaw nrog lwm cov ntaub ntawv.Xyuas cov khoom siv raw
Dab tsi yog qhov koob tshuaj ntawm tus neeg tso tawm?Siv tus neeg sawv cev tso tawm lossis sim tsis txhob siv nws ntau li ntau tau
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Tsis zoo nto gloss ntawm cov khoom
Qhov poob ntawm cov khoom qub luster, tsim ib txheej los yog qhov muag plooj ntawm cov khoom siv TPU tuaj yeem raug xa mus rau qhov tsis zoo ntawm gloss.
Tsis zoo nto gloss ntawm cov khoom feem ntau tshwm sim los ntawm kev sib tsoo tsis zoo ntawm cov pwm tsim nto.Thaum cov txheej txheem saum npoo ntawm qhov chaw sib sau yog qhov zoo, ua kom cov khoom thiab pwm kub tuaj yeem txhim kho cov luster ntawm cov khoom.Kev siv cov tshuaj refractory ntau dhau los yog cov khoom siv roj refractory kuj yog ib qho ua rau tsis zoo ntawm lub ntsej muag.Nyob rau tib lub sijhawm, cov khoom siv noo noo nqus los yog paug nrog cov khoom tsis zoo thiab cov tshuaj heterogeneous kuj yog vim li cas rau cov khoom tsis zoo ntawm cov khoom.Yog li, tshwj xeeb yuav tsum tau them nyiaj rau cov khoom muaj feem xyuam nrog pwm thiab cov khoom siv.
Table 11 qhia txog qhov ua tau thiab txoj hauv kev kho kom tsis zoo ntawm lub ntsej muag
Cov txheej txheem los tuav qhov ua rau tshwm sim
Kho qhov txhaj tshuaj siab thiab ceev kom tsim nyog yog tias lawv qis dhau
Cov pwm kub yog tsawg dhau, ua rau pwm kub nce
Qhov saum npoo ntawm cov pwm tsim qhov chaw muaj paug nrog dej los yog roj thiab wiped huv si
Tsis txaus nto sib tsoo ntawm pwm tsim qhov chaw, pwm polishing
Sib tov cov khoom sib txawv lossis cov khoom txawv teb chaws rau hauv lub tog raj kheej tu kom lim cov khoom siv raw
Cov ntaub ntawv nyoos uas muaj cov tshuaj volatile nce qhov kub ntawm cov yaj
Cov khoom siv raw muaj hygroscopicity, tswj lub sijhawm preheating ntawm cov ntaub ntawv raw, thiab ua tib zoo ci cov ntaub ntawv raw.
Kev noj cov khoom nyoos tsis txaus yuav ua rau muaj kev txhaj tshuaj ntau, ceev, sijhawm, thiab cov khoom siv raw
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Cov khoom muaj cov cim ntws
Flow marks yog cov cim ntawm qhov ntws ntawm cov khoom molten, nrog cov kab txaij tshwm rau ntawm qhov chaw ntawm lub rooj vag.
Flow marks yog tshwm sim los ntawm qhov ceev ceev ntawm cov khoom uas pib ntws mus rau hauv qhov chaw tsim, thiab tsim ib tug ciam ntawm nws thiab cov khoom uas tom qab ntws mus rau hauv nws.Txhawm rau tiv thaiv cov cim ntws, cov khoom siv kub tuaj yeem nce ntxiv, cov khoom siv fluidity tuaj yeem txhim kho, thiab kev txhaj tshuaj nrawm tuaj yeem hloov kho.
Yog tias cov khoom txias uas tseem tshuav nyob rau pem hauv ntej kawg ntawm lub nozzle ncaj qha nkag mus rau hauv qhov chaw tsim, nws yuav ua rau cov cim ntws.Yog li ntawd, qhov chaw txaus txaus nyob rau ntawm qhov sib tshuam ntawm cov sprue thiab cov neeg khiav dej num, los yog ntawm qhov sib tshuam ntawm tus khiav thiab cov splitter, tuaj yeem tiv thaiv qhov tshwm sim ntawm cov cim ntws.Nyob rau tib lub sijhawm, qhov tshwm sim ntawm cov cim ntws kuj tuaj yeem tiv thaiv los ntawm kev nce qhov loj ntawm lub rooj vag.
Table 12 qhia txog qhov ua tau thiab kev kho mob ntawm cov cim ntws
Cov txheej txheem los tuav qhov ua rau tshwm sim
Tsis zoo melting ntawm raw cov ntaub ntawv tsub kom melt kub thiab rov qab siab, accelerates ntsia hlau ceev
Cov ntaub ntawv nyoos tsis huv lossis sib xyaw nrog lwm cov ntaub ntawv, thiab ziab tsis txaus.Txheeb xyuas cov ntaub ntawv raw thiab ua tib zoo ci rau lawv
Cov pwm kub yog tsawg dhau, ua rau pwm kub nce
Qhov kub nyob ze ntawm lub rooj vag qis dhau los ua kom qhov kub thiab txias
Lub rooj vag me dhau los yog qhov chaw tsis raug.Nce lub rooj vag lossis hloov nws txoj haujlwm
Lub sij hawm tuav luv thiab ncua sij hawm tuav
Kev kho tsis raug ntawm kev txhaj tshuaj siab lossis ceev mus rau qib tsim nyog
Lub thickness sib txawv ntawm cov khoom tiav yog loj heev, thiab cov khoom tiav tsim tau hloov
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Txhaj tshuaj molding tshuab ntsia hlau slipping (tsis tuaj yeem pub)
Table 13 qhia txog qhov ua tau thiab kev kho mob ntawm cov ntsia hlau ntog
Cov txheej txheem los tuav qhov ua rau tshwm sim
Yog hais tias qhov kub ntawm lub rear seem ntawm cov khoom yeeb nkab yog siab dhau lawm, xyuas cov cua txias system thiab txo qhov kub ntawm lub rear seem ntawm cov khoom yeeb nkab.
Ua tsis tiav thiab ua kom qhuav ntawm cov ntaub ntawv raw thiab tsim nyog ntxiv cov roj nplua nyeem
Kho lossis hloov cov khoom siv cov kav dej thiab cov ntsia hlau
Troubleshooting qhov pub ib feem ntawm lub hopper
Cov ntsia hlau recedes sai heev, txo cov ntsia hlau receding ceev
Cov khoom thoob tsis tau ntxuav kom huv si.Ntxuav cov khoom thoob
Tshaj particle loj ntawm raw cov ntaub ntawv txo particle loj
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Cov ntsia hlau ntawm lub tshuab txhaj tshuaj molding tsis tuaj yeem tig
Table 14 qhia txog qhov ua tau thiab txoj kev kho mob rau qhov tsis muaj peev xwm ntawm cov ntsia hlau tig
Cov txheej txheem los tuav qhov ua rau tshwm sim
Tsawg melt kub nce melt kub
Kev siab rov qab ntau dhau yuav txo qis rov qab
Tsis txaus lubrication ntawm cov ntsia hlau thiab tsim nyog ntxiv ntawm lubricant
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Cov khoom xau los ntawm kev txhaj tshuaj nozzle ntawm lub tshuab txhaj tshuaj molding
Table 15 qhia txog qhov ua tau thiab kev kho mob ntawm kev txhaj tshuaj nozzle to
Cov txheej txheem los tuav qhov ua rau tshwm sim
Kev kub siab ntawm cov khoom siv yeeb nkab txo qhov kub ntawm cov khoom siv yeeb nkab, tshwj xeeb tshaj yog nyob rau hauv lub nozzle seem
Kev kho tsis zoo ntawm lub siab rov qab thiab qhov tsim nyog txo qis rov qab siab thiab ntsia hlau ceev
Main channel txias khoom disconnection lub sij hawm thaum ntxov ncua txias khoom disconnection lub sij hawm
Kev tso tawm tsis txaus mus nce lub sij hawm tso tawm, hloov nozzle tsim
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Cov khoom tsis yog yaj tag
Table 16 qhia txog qhov ua tau thiab txoj kev kho mob rau cov khoom tawg tsis tiav
Cov txheej txheem los tuav qhov ua rau tshwm sim
Tsawg melt kub nce melt kub
Tsawg rov qab siab nce rov qab siab
Qhov qis ntawm lub hopper yog txias heev.Kaw qhov qis ntawm lub hopper txias system
Lub voj voog luv molding nce lub voj voog molding
Kev ziab ntawm cov khoom tsis txaus, ua kom tiav ci ntawm cov khoom
Post lub sij hawm: Sep-11-2023