Lub sijhawm hloov pauv hauv cov tshuab kub khiav feem ntau yog xa mus rau qhov tshwm sim ntawm kev hloov pauv ntawm qhov kub thiab txias nyob ib puag ncig tus nqi. Qhov no feem ntau yog tshwm sim los ntawm qhov tsis txaus ntawm kev tswj qhov kub thiab txias, kev cuam tshuam sab nraud thermal, lossis tsis sib xws ntawm cov yas yaj. Nws tuaj yeem tiv thaiv tau zoo los ntawm kev ua kom zoo ntawm kev tswj qhov kub thiab txias, txhim kho qhov kub khiav tsim, thiab ntxiv dag zog rau kev kho pwm.
I. Lub ntsiab ua rau muaj kev hloov pauv ntawm lub sijhawm
1. Tsis muaj qhov tseeb ntawm Kev Tswj Kub Kub: Cov tshuab khiav kub cia siab rau ntau- thaj chaw cua sov thiab cov lus pom zoo los tswj qhov kub. Yog tias PID tsis raug hloov kho tsis raug lossis cov lus teb ntawm lub sensor yog lagging, nws tuaj yeem ua rau lub sijhawm kub dhau los yog oscillation.
Piv txwv li, lub zog cua kub ntau dhau ua ke nrog qhov ntsuas kub tsis sib haum xeeb tuaj yeem ua rau muaj kev hloov pauv ntawm "overheating → cooling → reheating."
2. Sab Nraud Thermal Interference: Nquag qhib thiab kaw ntawm lub tshuab txhaj tshuaj molding, lub sijhawm pib thiab nres ntawm cov dej txias, thiab qhov kub ntawm diurnal variations tuaj yeem ua rau lub sijhawm thermal load cuam tshuam.
Zoo ib yam li "kub nthwv dej" tshwm sim hauv cov hnab ntawv hauv tsev, cov cua sov tau nkag mus rau hauv cov neeg khiav dej num hauv qhov hloov pauv, ua rau muaj kev hloov pauv ntawm qhov kub thiab txias.
3. Tsis sib xws Melt Flow ua rau muaj kev hloov pauv hauv ntau- kab noj hniav pwm, kev faib tawm tsis sib npaug lossis qhov sib txawv ntawm lub qhov rooj qhov ntev tuaj yeem ua rau sib txawv yaj sau ua ntu zus nrog txhua qhov kev txhaj tshuaj, ua rau lub sijhawm ua haujlwm siab.
Cov ntsia hlau tsis sib xws (xws li kev hloov pauv hloov pauv lossis hnav) tuaj yeem ua rau lub sijhawm hloov pauv hauv yaj viscosity, cuam tshuam rau kev ntws.
II. Tej yam tsis zoo tshwm sim los ntawm kev hloov pauv
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Hom kev hloov pauv |
Teeb meem tshwm sim |
Common Manifestations |
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Periodic Temperature Fluctuations |
Melt Viscosity Hloov |
Flash (High Temp), Short Shots (Tsawg Kub) |
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Periodic Pressure Fluctuations |
Tsis sib npaug |
Qhov hnyav hloov pauv, Dimensional Deviations, Internal Stress Concentration |
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Qhov kub thiab txias -Pressure Coupling fluctuations |
Tsis ruaj khov Moulding Cycle |
Batch-rau-Batch Quality fluctuations, nyuaj rau taug qab |
Cov ntsiab lus tseem ceeb: Kev hloov pauv raws sij hawm sib txawv ntawm qhov sib txawv ntawm qhov sib txawv. Lawv muaj qhov ruaj khov thiab muaj peev xwm thiab tuaj yeem txheeb xyuas cov ntaub ntawv ntau lawm los ntawm kev tshawb xyuas lub sijhawm (xws li Fourier hloov). Lawv yog cov cim tseem ceeb ntawm cov teeb meem hauv lub cev.
III. Kev daws teeb meem thiab optimization ntsuas
1. Txhim kho qhov ntsuas kub kom raug
Siv siab -paj thermocouples (piv txwv li, J-hom lossis K-type) thiab ntsuas lawv tsis tu ncua;
Optimize PID tswj tsis tau thiab qhia kev hloov kho lossis fuzzy tswj algorithms kom txo qis overshoot;
Embeddefine kub tswj kav nyob rau hauv lub kub khiav phab ntsa kom ua tau ntau yam kub tis.
2. Optimize Kub Runner Structure Design
Txais yuav symmetrical flow layout layout los xyuas kom meej ib tug zoo sib xws melt flow paths nyob rau hauv txhua kab noj hniav;
Teeb tsa elastic flow- txwv cov nplhaib kom tsis txhob muaj qhov hloov pauv siab thiab ua kom cov zis tso zis ruaj khov;
Siv kub khiav simulation software (piv txwv li, Moldflow) los kwv yees qhov kub thiab txias qhov chaw faib khoom thiab ua kom zoo tshaj qhov tsim ua ntej.
3. Txhim khu kev soj ntsuam xyuas thiab kuaj mob
Ntxiv ib lub sensor thib ob rau qhov kub khiav qhov tso tawm kawg los sib piv cov txheej txheem kub nrog qhov ntsuas kub ntawm lub sijhawm;
Sau qhov kub thiab siab nkhaus rau txhua lub voj voog thiab txheeb xyuas cov xwm txheej raws sij hawm siv SPC (Kev Tswj Xyuas Txheej Txheem Txheej Txheem);
Cov qauv ntaub ntawv keeb kwm siv AI algorithms kom ua tiav qhov hloov pauv thaum ntxov.
4. Ua kom ruaj khov cov ntaub ntawv raw thiab cov txheej txheem txheej txheem: Preheat rhiab raw cov ntaub ntawv xws li TPE kom txo qhov kub thiab txias qhov sib txawv; Khaws qhov kub thiab txias tsis tu ncua kom tsis txhob muaj kev cuam tshuam los ntawm cov cua txias tsis sib xws.
