Yuav ua li cas thiaj ua kom zoo txheej txheem tsis ntawm kev txhaj tshuaj molding tshuab?

Txhim kho cov txheej txheem tsis ntawm kev txhaj tshuaj molding tshuab yog qhov tseem ceeb txuas los txhim kho cov khoom lag luam zoo, tsim tawm thiab txo tus nqi. Nws yuav tsum tau muab kho kom nkag siab txog kev sib xyaw nrog cov khoom muaj nqis, cov khoom tsim tsim khoom, khoom siv khoom siv thiab kev tsom xam. Cov hauv qab no yog cov kauj ruam zoo thiab cov hau kev tsim nyog:
1. Qhia meej txog cov hom phiaj optimization thiab cov xwm txheej yooj yim
Lub hom phiaj-taw qhia
Cov hom phiaj tseem ceeb: txo cov teeb meem tsis xws luag (xws li txhaj tshuaj tsawg, pov tseg, thiab lwm yam), thiab txo lub sijhawm sib txawv, thiab kev siv hluav taws xob.
Cov Txheej Txheem Yooj Yim: Xyuas kom cov cuab yeej siv tau zoo (xws li cov khoom muag dej tsim nyog (cov khoom siv roj hmab, thiab cov khoom siv kub ua kom qhuav), thiab cov khoom siv kub kom qhuav)
2. Cov txheej txheem tseem ceeb parameter ua kom zoo rau lub tswv yim
1. Cov ntsuas kub kub (Barrel, pwm, nozzle)
Churrel Kub
Teem cov ntsuas kub raws li lub ntsiab lus melting ntawm cov yas (xws li maj mam}}} degree), thiab maj mam} degree li ntawm ntu ntawm lub thoob txwv kom tsis txhob ua drooling).
Saib xyuas cov kua zaub qhuav me me: yog tias cov ntaub ntawv tau qeeb thiab muaj cov lus hauv cov khoom, nce qhov ntsuas kub ntawm cov ntu pub mis kom zoo; Yog hais tias cov yaj yog daj thiab muaj qhov tsw hlawv, txo qhov ntsuas kub ntawm ntu ntsuas kub.
Cov khoom lag luam pob tshab yuav tsum tau tswj hwm qhov kub sib txawv (hauv ± 5 degree) kom tsis txhob muaj kev kub ntxhov hauv lub zos thiab kev txwv tsis taus.
Pwm kub
Cuam tshuam cov cua txias ua kom sov thiab crystallinity: crystalline cov ntaub ntawv (xws li PE, PP) kom zoo dua GLAIL thiab seem ruaj khov; Cov ntaub ntawv tsis-customstalline (xws li PS, ABS) tuaj yeem muaj qhov ntsuas kub qis ({{}}}} degree) kom lub sijhawm txias.
Pwm kub cov khoom siv kub: Nquag xyuas seb puas muaj cov dej txias channel txias kom ntseeg tau tias qhov kub ntawm txhua kab noj hniav yog qhov sib txawv (qhov sib txawv rau 3 degree).
2. Kev siab thiab nrawm dua
Txhaj tshuaj siab
Qhov chaw pib: Raws li cov phab ntsa tuab thiab cov qauv ntawm cov khoom, nws feem ntau {{mpa mpa cia kom tau cov khoom siab dua).
Kev Txhim Kho Kom Zoo: Yog tias kev txhaj tshuaj luv tshwm sim, maj mam nce lub siab; Yog hais tias flash, txo lub siab thiab tshuaj xyuas seb lub zog clamping tsis txaus; Kev siab dhau siab yuav ua rau muaj kev ntxhov siab sab hauv ntawm cov khoom lag luam, ua rau muaj kev tawm tsam lossis tawg.
Txhaj tshuaj tiv thaiv ceev
Seem tswj: Kev kub ceev kom sau cov phab ntsa nyias lossis cov txheej txheem nyuaj kom tsis txhob muaj txias txias; Tsawg ceev ceev kom sau cov tuab phab ntsa lossis cov khoom lag luam tau rau Weld cov cim kom txo qis kev kub siab thiab cov pa roj.
Ua ke nrog cov qauv sib tw: kev kub ceev yog qhov yuav tsum tau rau cov rooj vag me me kom tiv thaiv kev ua kom tiav ntxov; Kev nrawm nrawm yog qhov yuav tsum muaj rau cov rooj vag loj kom txo cov cua sov.
3. Lub sijhawm tsis (tuav siab, txias, voj voog)
Tuav Siab Thiab Sijhawm
Tuav siab: Feem ntau 60% -80}}% ntawm kev txhaj tshuaj nias siab. Siab dhau yuav ua rau shrinkage lossis kev ntxhov siab, qis dhau yuav ua rau tsis muaj cov khoom muaj qhov hnyav thiab kev nyuaj siab tiag.
Lub Sijhawm Tuav: Raws li GATE solorification (tuaj yeem sim los ntawm cov qauv ": thiab lub sijhawm thaum cov khoom lag luam hnyav tsis hloov lawm yog tus nqi tseem ceeb).
Lub sijhawm txias
Cov account rau 60% {1}}}% ntawm lub sijhawm voj voog. Ntev dhau yuav txo kev ua tau zoo, thiab luv dhau yuav ua rau khoom lag luam. Nws tuaj yeem raug txiav txim los ntawm seb cov khoom tig dawb lossis deforms tom qab kev lom zem, lossis qhov ntsuas kub kub tuaj yeem kuaj pom qhov kub ntawm cov cua sov ntawm cov yas).
4. Ntsia ntswj (ceev, rov qab siab, mob stroke)
Ntsia Hlau Ceev
Kev ceev ceev: {{{{50-100 rpm, kev kub siab txhim kho cov nyhuv sib xyaw
Rov qab siab: {{{5-15 MPa mpa, nce ntom ntom nti kom txo qis qis dua lossis sib npaug li 10 mpa).
Ntsia thawv
Meterer metering stroke: khaws 10-20 hli puffer kom tsis txhob ntsia hlau idling; Txhaj tshuaj tiv thaiv kev txhaj tshuaj xav tau los npog cov khoom lag luam + Cov kev sib ntaus sib xyaw, kev txhaj tshuaj ntau dhau yuav ua kom poob siab.
5. Pwm qhib thiab kaw thiab Ejenter tsis sib xws
Pwm Qhib Thiab Kaw Ceev
Seem tswj: Ceev pwm qhib thiab kaw kev ua tau zoo, qeeb pwm kaw tiv thaiv pwm (tshwj xeeb rau cov qauv slider).
Ervation ceev thiab siab
Tsawg-nrawm ejection urctions cov khoom lag luam deformation, thiab txoj haujlwm ntawm cov qauv khoom lag luam (xws li cov khoom sib sib zog nqus-kab noj hniav yuav tsum nce ejector ntom ntom).
3. Qhov tsis xws luag pom zoo
Cov xwm txheej nquag ua tau ua rau kev sib txuas lus
Luv luv txhaj tshuaj (under-kev txhaj tshuaj) tsis muaj kub, tsis muaj kev kub ceev, ua kom pom kev kub ntxhov, ua kom ceev, thiab huv paug, thiab huv si tso pa tawm
Flash (flashing) ntau dhau los, pwm kev txhaj tshuaj txo qis (ntau dua lossis sib npaug ntawm 1.2 zaug suav tus nqi), thiab kho pwm
Shrinkage (Kev Nyuaj Siab) Tsis Txaus Mloog Lub Siab, Tsis Txaus Ntsig Siv Lub Zog \/ Time, Txhim Kho Pwm Txias, thiab Kho Phab Ntsa Thickness Tsim
Weld cov khoom lag luam qis, qeeb nrawm, tso tawm kom tsis zoo, ua kom haum rau kev txhaj tshuaj tiv thaiv kev kub, thiab kho cov rooj vag txoj haujlwm
Discoloration \/ hlawv lub cav kub siab dhau lawm, ntsia hlau rov qab yog qhov siab ntau dhau, thiab lub sijhawm ntsuas kub thiab qis dua (nce txhaj tshuaj ntim)
Qhov ntev instability instability qhov kub hloov pauv, hloov siab, tsis sib xws txias calibrate ntsuas kub, thiab ua kom zoo rau cov dej khov kho cua txias
IV. Cov cuab yeej ua kom zoo thiab cov hau kev
Mould kev sim siab thiab parameter
Tsim kom muaj "txheej txheem ntsuas cov lus" kom sau cov ntsiab lus pib, kev hloov kho cov khoom lag luam (xws li qhov hnyav, qhov loj me me) rau cov khoom siv tau yooj yim thiab luam.
Txais yuav cov "kev hloov kho ib leeg" hloov kho: tsuas yog hloov ib qho ntsuas txhua zaus (xws li ntsuas kub 5%), thiab saib qhov cuam tshuam ntawm ib qho kev sib txawv ntawm cov txiaj ntsig.
Mouldflow Kev Ntsuam Xyuas
Thaum lub sij hawm tsim theem, software yog siv los simulate qhov chaw sau, tuav tau siab, ua kom pom qhov tsis xws luag), thiab ua kom zoo ua kom zoo ua ntej.
Cov Txheej Txheem Txheeb Xyuas Txheej Txheem (SPC)
Kev tshuaj xyuas lub sijhawm tiag tiag ntawm cov khoom lag luam tseem ceeb (xws li cov khoom lag luam tuab, kam rau kev ntsuas), teeb tsa kev kuaj kom tau, raws sij hawm ntawm qhov hloov pauv thiab kho kom haum.
Cov ntse optimization
Siv cov txheej txheem ntse ntawm kev txhaj tshuaj pwm (xws li tsis siv neeg lub sijhawm (iot) los soj ntsuam kev siv hluav taws xob thiab lub voj voog kev ua haujlwm ntawm lub sijhawm dhau los.
5. Kev ceev faj
Cov Khoom Siv Ua Ntej: Plastics ntawm cov qhab nia sib txawv (xa mus rau cov khoom moulding (xa mus rau cov chaw tsim khoom moulding (moulding qhov rai) muab los ntawm cov khoom lag luam cov khoom lag luam nyoos.
Cov cuab yeej sib txawv: cov qauv ntsuas ntawm ntsia hlau hnav thiab kev kub nyhav ib qho tshiab thiab cov cuab yeej siv qub yuav tsum sib txawv (ntsuas qhov ntsuas kub nrog tus pas ntsuas kub saum toj).
Kev cuam tshuam ib puag ncig: Kev hloov pauv kub \/ av noo yuav cuam tshuam rau cov khoom siv hluav taws xob kom ruaj khov (xws li tswj hwm ntawm 25 ± tsawg dua los yog sib npaug rau 60%).
6. Nrhab Txhim Kho
Tsim kom muaj "qhov tsis zoo-parameter kho rooj plaub lub tsev qiv ntawv" thiab nthuav ntau cov ntaub ntawv keeb kwm kom nrawm rau cov teeb meem zoo sib xws.
Nquag qhia cov neeg ua haujlwm kom paub txoj kev hloov pauv tsis haum (tsis nco qab qhov ntsuas qhov tseem ceeb), thiab hloov kho kom zoo dua qub nrog kev tsim khoom tiag tiag.
Los ntawm cov kauj ruam saum toj no, kev txhim kho kev ua kom zoo dua qub tuaj yeem ua tiav, thiab ntau dua kev ua tau zoo thaum ua kom tau cov khoom lag luam zoo, txo cov nqi hluav taws xob thiab cov nqi sib npaug.