Ib, Vim Li Cas Muaj Ntau Yam Khoom Noj Khoom Noj Khoom Noj Zoo Zoo thaum pib tab sis ua tsis tiav tom qab
Thaum cov neeg siv khoom pib qhov project Plastic Food Storage Containers Pwm, qhov kev cia siab feem ntau yog yooj yim heev:
"Ua cov pwm, khiav ntau lawm, thiab xa cov khoom."
Tab sis hauv kev tsim khoom tiag tiag, tej yam feem ntau tsis mus raws li qhov xav tau.
Tom qab thawj zaug sim lossis txawm tias thaum lub sijhawm tsim khoom loj, cov teeb meem pib tshwm sim:
Lub thawv zoo li me ntsis twisted tom qab txias
Lub hau tsis kaw kom nruj, tshwj xeeb tshaj yog thaum thauj lossis stacking
Cov cim dab dej me me tshwm rau ntawm qhov chaw
Qee cov kab noj hniav ua kom tiav, thaum lwm tus tsis ua
Cov pwm xav tau kev hloov kho dua, ncua kev xa khoom
Dab tsi ua rau ntau tus neeg yuav khoom xav tsis thoob yog tias cov teeb meem no tsis yog tshwm sim los ntawm kev tsim khoom tsis zoo, tab sis vim tias qhov teeb meem tsis tau nkag siab tag nrho ntawm theem tsim.
Yas coj txawv txawv nyob rau hauv tshav kub, siab, thiab txias. Thaum cov pwm tsim, cov kev hloov pauv yuav kim thiab siv sijhawm -siv.
Tias yog vim li cas cov neeg siv khoom paub txog ua haujlwm nrog cov chaw tsim khoom yas txhaj tshuaj pwm rau cov thawv ntim khoom noj feem ntau nug cov lus nug tseem ceeb thaum ntxov ntawm cov txheej txheem:
"Koj puas siv pwm khiav kev soj ntsuam ua ntej tooling?"
2, Pwm Flow Analysis tiag tiag txhais tau li cas
Mould flow analysis yog qhov tseem ceeb ntawm digital simulation ntawm kev txhaj tshuaj molding txheej txheem ua ntej cov hlau raug txiav.
Tsis txhob cia siab rau kev paub ib leeg, engineers siv software los simulate li cas yas coj hauv pwm.
Nws pab kwv yees:
Yuav ua li cas molten yas ntws mus rau hauv kab noj hniav
Seb cov kab noj hniav ua kom sib npaug los yog tsis sib xws
Yuav ua li cas cov khoom cools down tom qab sau
Qhov twg shrinkage los yog kev ntxhov siab yuav tshwm sim
Seb qhov kawg yuav warp los yog deform
Koj tuaj yeem xav txog nws raws li kev xyaum ua ntej tsim khoom.
Yog tsis muaj nws, cov teeb meem tsuas yog pom tom qab ua pwm.
Nrog nws, feem ntau cov teeb meem tuaj yeem txheeb xyuas thiab daws tau ua ntej.
3, Vim li cas cov khoom ntim khoom ntim pwm yog qhov nyuaj dua li lwm tus
A Yas Zaub Mov Cia Thawv Pwmtsis yog ib qho yooj yim yas. Nws muaj cov kev cai nruj dua thiab kev coj cwj pwm nyuaj dua.
1. Nyias -Wall Structure Sensitivity
Cov thawv ntim khoom noj feem ntau yog nyias- cov khoom siv phab ntsa.
Qhov no txhais tau tias:
Yas ntws sai sai tab sis nyuaj rau tswj
Cov cua txias tshwm sim sai heev, ua rau muaj kev ntxhov siab ntau ntxiv
Kev sib txawv me me tuaj yeem ua rau deformation
Txawm tias qhov tsis sib xws me me tuaj yeem ua rau pom kev ua tsov rog.
2. Cov kev cai nruj nruj
Cov thawv ntim khoom noj tsis yog tsuas yog cov khoom zoo li.
Lawv yuav tsum:
Foob nruj thiab ntseeg tau
Tswj kev ua haujlwm thaum thauj
Nyob ruaj khov nyob rau hauv qhov kub thiab txias
Txawm me ntsis deformation tuaj yeem ua rau sealing tsis ua haujlwm.
3. Siab -Vume Production Pressure
Kev ntim khoom noj feem ntau yog tsim los ntawm ntau qhov ntau:
Kaum tawm txhiab mus rau lab units
Ntawm qhov ntsuas no, txawm tias tus nqi me me tuaj yeem ua rau poob loj.
Tias yog vim li cas txo kev pheej hmoo ntawm theem tsim yog qhov tseem ceeb.
4, Dab tsi teeb meem Pwm Flow Analysis pab tiv thaiv
Mould flow analysis tsis yog hais txog kev pom kev ntws xwb. Nws tus nqi tiag tiag yog txheeb xyuas cov kev pheej hmoo ua ntej kev tsim khoom.
Warpage (Deformation Control)
Warpage yog ib qho teeb meem tshwm sim hauv cov thawv ntim khoom noj.
Nws feem ntau tshwm sim los ntawm:
Kev txias txias tsis sib xws
Tsis sib npaug phab ntsa thickness
Unbalanced shrinkage
Simulation pab txheeb xyuas qhov chaw twg yuav ua rau deform ua ntej pwm tsim.
Sink Marks
Thicker seem txias dua maj mam, ua rau nto dents.
Mould flow tsom qhia txog cov cheeb tsam no yog li cov neeg tsim qauv tuaj yeem ua kom zoo dua qub thaum ntxov.
Short Shots (Kev Sau Tsis tiav)
Hauv nyias- cov phab ntsa, cov yas yuav khov ua ntej mus txog txhua qhov chaw ntawm pwm.
Qhov no ua rau cov ces kaum ploj los yog cov npoo tsis tiav.
Simulation pab kom paub meej tias seb qhov txhaws puas ruaj khov.
Cua ntxiab thiab hlawv cov cim
Yog tias huab cua tsis tuaj yeem khiav thaum txhaj tshuaj, nws nkag mus rau hauv pwm.
Qhov no tuaj yeem ua rau:
Hlawv cov cim
Cua hnab ris
Deg tsis xws luag
Cov no tsis tsim nyog rau cov khoom noj khoom haus - qib.
Weld Kab
Thaum ob qhov dej ntws sib ntsib, ib txoj kab pom pom.
Yog tias tsis tswj tau zoo, nws tuaj yeem:
Txo lub zog
Muaj feem cuam tshuam
Mould flow analysis pab txoj haujlwm weld kab hauv qhov chaw tsis tshua muaj teeb meem.
5, Mould Flow Analysis Txhim Kho Pwm Tsim
Mould flow analysis tsis yog ib qho kev kuaj xyuas xwb -nws yog ib qho cuab yeej tsim kho kom zoo.
Gate Position Optimization
Lub rooj vag txiav txim siab seb cov yas nkag mus rau hauv kab noj hniav.
Nws cuam tshuam:
Flow balance
Sau qauv
Qhov kawg tshwm sim
Simulation pab ntsuas ntau lub qhov rooj xaiv ua ntej ua tiav qhov tsim.
Phab ntsa Thickness Optimization
Uniform phab ntsa thickness yog qhov tseem ceeb rau kev tsim khoom ruaj khov.
Txwv tsis pub, teeb meem xws li:
Uneven shrinkage
Warpage
Kev ntxhov siab sab hauv
tej zaum yuav tshwm sim.
Txias System Optimization
Cov cua txias ncaj qha cuam tshuam rau:
Lub sijhawm voj voog
Dimensional stability
Cov khoom sib xws
Simulation pab txheeb xyuas thaj chaw uas qhov cua txias tsis txaus lossis tsis sib xws.
Kev ntsuas tus cwj pwm ntawm cov khoom
Cov khoom sib txawv coj txawv txawv:
PP: kev lag luam tab sis siab dua shrinkage
PET: zoo dua clarity tab sis rhiab heev rau txias
Simulation pab xaiv cov khoom tsim nyog ua ntej kev pib siv.
6, Kev Kawm Tseeb: Sunhing Stones Project
Nyob rau hauv ib txoj haujlwm ntim khoom noj nyob sab Europe, qhov xwm txheej tau zoo heev.
Cov teeb meem pib
Lub hau deformation tom qab txias
Kev sealing tsis zoo
Tsis zoo tus nqi siab dua 15%
Thawj txoj hauv kev yog:
Kev sim pwm → hloov kho → re- sim → rov ua dua
Txawm li cas los xij, qhov teeb meem tseem tsis tau daws.
Tom qab Qhia Mould Flow Analysis
Pab pawg engineering tau ua tiav kev simulation thiab txheeb xyuas:
Cov khoom ntws tsis sib xws
Ua kom txias tsis txaus
Tsis yog - qhov chaw ua haujlwm tau zoo
Tom qab ntawd lawv tau ua peb qhov kev txhim kho tseem ceeb:
Kho qhov rooj qhov chaw
Optimized phab ntsa thickness faib
Redesigned cua txias system
Cov txiaj ntsig kawg
Tus nqi txo qis dua 30%
Thawj qhov kev sim ua tiav tiav
Lub sij hawm voj voog txo los ntawm 18%
Qhov kev txhim kho loj tshaj plaws yog kev kwv yees thiab kev ruaj ntseg.
7, Thaum twg Mould Flow Analysis siv
Nws raug pom zoo heev thaum:
Txhim kho cov khoom ntim khoom pwm
Ua haujlwm nrog nyias- phab ntsa tsim
Tsim ntau- kab noj hniav pwm
Ua export - ntim zoo
Yuav tsum muaj kev sib luag siab
Hauv cov ntsiab lus yooj yim:
�� Cov khoom siv ntau dua, qhov tsim nyog simulation ua ntau dua.
8, Pwm Flow Analysis tsim nyog nws
Los ntawm txoj kev xav ua lag luam:
Tsis muaj simulation:
Teeb meem tshwm sim tom qab kev siv cuab yeej
Kev hloov pwm tsis tu ncua
Kev ncua thiab tsis ruaj khov
Nrog simulation:
Cov teeb meem raug txheeb xyuas ntxov
Tsawg dua kev sim rov ua dua
Tshaj tawm sai dua
Tsawg qhov kev pheej hmoo tag nrho
Txawm hais tias nws ntxiv tus nqi me me, nws feem ntau tiv thaiv kev poob ntau dua tom qab.
9, Yuav Ua Li Cas Xaiv Cov Khoom Siv Pwm Zoo
Thaum xaiv ibyas txhaj tshuaj pwm chaw tsim tshuaj paus rau ntim khoom noj, tus nqi yuav tsum tsis yog qhov tseem ceeb xwb.
Tus neeg muag khoom ntseeg siab yuav tsum muab:
Mould flow analysis ua ntej tooling
DFM (Design for Manufacturing) tawm tswv yim
Kev paub nrog zaub mov- cov khoom qib
Cov ntaub ntawv tsim khoom tiag tiag
ruaj khov muaj peev xwm ntau lawm
Ib tus neeg muag khoom zoo tsis yog tsuas yog ua pwm xwb- lawv pab txo koj qhov kev pheej hmoo tag nrho.
FAQ
1. Dab tsi yog pwm khiav tsom hauv cov ntsiab lus yooj yim?
Nws yog cov txheej txheem simulation uas kwv yees seb cov yas coj li cas hauv pwm ua ntej pib tsim khoom.
2. Nws puas tuaj yeem txo cov khoom deformation?
Yog, nws pab txheeb xyuas qhov tsis sib xws ntawm qhov txias txias thiab cov teeb meem ntawm cov txheej txheem thaum ntxov.
3. Puas tsim nyog rau cov khoom ntim pwm?
Rau siab - ntim lossis siab - cov khoom zoo, nws raug pom zoo.
4. Thaum twg nws yuav tsum tau ua?
Thaum lub sij hawm pwm tsim theem, ua ntej tooling pib.
5. Puas yog tus nqi nce ntxiv?
Tsis yog. Nws yog ib qho kev nqis peev me me uas feem ntau txuag tau ntau dua hauv kev rov ua haujlwm dua thiab qeeb.
Cov ntaub ntawv
https://www.autodesk.com/products/moldflow/overview
https://www.engineering.com/story/what-yog-pwm-flow- tsom xam
