一,Dab tsi yog Txhaj Mould Design
Txhaj pwm tsim yog hais txog cov txheej txheem engineering ntawm kev tsim cov pwm ua tiav siv rau cov yas txhaj tshuaj molding. Nws suav nrog:
Cavity tsim
Runner system tsim
Txias qhov system tsim
Ejection system tsim
Kev tsim kho qhov system
Hauv kev tsim khoom niaj hnub, kwv yees li70% -80% ntawm cov khoom yasyog tsim los ntawm kev txhaj tshuaj molding, ua pwm tsim ib qho tseem ceeb ntawm cov khoom zoo thiab tus nqi.
Cov ntaub ntawv kev lag luam qhia tau hais tias:
�� Ib qhov zoo-kev tsim pwm zoo tuaj yeem txo cov nqi tsim khoom los ntawm15%–30%
�� Pwm qauv optimization tuaj yeem txhim kho cov txiaj ntsig los ntawm10%–25%
2. Core Txhaj Mould tsim txheej txheem
Tus txheej txheem kev txhaj tshuaj pwm tsim muaj rau theem tseem ceeb:
1. Kev soj ntsuam cov qauv khoom
Engineers ua ntej ntsuas:
Phab ntsa thickness uniformity (pom zoo: 1.2-3.0mm)
Undercut qauv
Xav tau cov sliders lossis lifters
�� Cov ntaub ntawv qhia tias DFM optimization tuaj yeem txo40% ntawm cov nqi hloov kho tom qab
2,Kev xaiv cov khoom thiab Shrinkage txhais
Cov ntaub ntawv yas sib txawv muaj qhov sib txawv ntawm qhov shrinkage:
|
Khoom siv |
Shrinkage tus nqi |
|
PP |
1.5%–2.5% |
|
ABS |
0.4%–0.8% |
|
PC |
0.5%–0.7% |
|
PAB 66 |
1.0%–2.0% |
�� A 0.1% shrinkage sib txawv tuaj yeem ua rau 0.02-0.05mm qhov yuam kev
3. Parting Line Design
Txoj kab sib faib ncaj qha cuam tshuam rau:
Cov tsos zoo
Flash tswj
Demolding nyuaj
Cov ntsiab cai tseem ceeb:
Xaiv qhov projection loj tshaj plaws
Tsis txhob sib cais ntawm qhov chaw
Xyuas kom ib qho kev taw qhia demolding
4. Pwm Runner System Design
Cov pwm khiav tsim txiav txim siab li cas cov yas molten puv hauv kab noj hniav.
Khiav hom:
Txias khiav (tus nqi qis)
Kub khiav (high efficiency)
Cov ntaub ntawv kev lag luam:
�� Optimized runner tsim txo cov kev txhaj tshuaj siab los ntawm12%–20%
�� Kub khiav tshuab txhim kho efficiency los ntawm20%–40%
5. Pwm Cooling System Optimization
Pwm cua txias system optimization yog qhov tseem ceeb tshaj plaws cuam tshuam rau lub sijhawm voj voog.
Kev txheeb xyuas cov ntaub ntawv:
Txias nyiaj rau40% -70% ntawm tag nrho cov sij hawm voj voog
Temperature variation >5℃nce warpage txaus ntshai los ntawm30%
Cov qauv tsim:
Txias channel nrug: 10-15mm
Pwm tswj qhov kub thiab txias: ± 2 degree
Qhov deb ntawm qhov chaw: 8-12mm
6. Ejection thiab Venting System Tsim
Kev tsim tawm tsis zoo yuav ua rau:
Khoom deformation
Kev nyuaj siab dawb
Ejector marks
Qhov cua tsis zoo tuaj yeem ua rau:
Hlawv cim
Cua ntxiab
Kev txhaj tshuaj luv luv
Kev lag luam txheeb cais:
�� Cov cua tsis zoo tuaj yeem txo cov txiaj ntsig los ntawm10%–25%
3,Kev cuam tshuam ntawm cov khoom yas sib txawv ntawm Pwm Tsim
Cov ntaub ntawv sib txawv xav tau cov tswv yim tsim pwm sib txawv:
1. High- cov ntaub ntawv ntws
Ib qho yooj yim filling
Siab shrinkage
Kev xav tau kom txias txias
2. Engineering plastics
High precision yuav tsum tau
Sab hauv kev nyuaj siab
Uniform txias yuav tsum tau
3. High - cov ntaub ntawv ua tau zoo
Moisture rhiab heev
Warpage txaus ntshai
Yuav tsum tau ua kom qhuav
�� Cov khoom tsis sib haum ua rau dhau60% ntawm pwm rework teeb meem
4, Kev Txhaj Tshuaj Txhuam Hniav thiab Kev daws teeb meem Engineering
|
Cov cim dab dej |
Kev ua kom txias tsis txaus |
Ua kom zoopwm txias system optimization |
|
Flash |
Tsawg clamping quab yuam |
Kho cov kab sib faib |
|
Hlawv cim |
Kev ua pa tsis zoo |
Ntxiv cov vents |
|
Warpage |
Kev txias txias tsis sib xws |
Txhim kho cov txheej txheem txias |
5.Txoj kev loj hlob Trends nyob rau hauv niaj hnub txhaj tshuaj pwm tsim
1. High Precision Manufacturing
Qhov tseeb tau txhim kho los ntawm ± 0.05mm mus rau ± 0.01mm qib
2. CAE Simulation Adoption
Tso cai kwv yees ntawm:
Sau tus cwj pwm
Warpage deformation
Txias efficiency
3. Kub khiav System Expansion
Kev siv ntau tshaj 60% hauv siab -kawg pwm tej yaam num
