Txhaj tshuaj molded cov khoom, raws li ib tug ntawm cov feem ntau lug siv yas ua khoom nyob rau hauv niaj hnub manufacturing, muaj lawv cov khoom zoo thiab cov txheej txheem tswj theem ncaj qha cuam tshuam rau kev ua tau zoo thiab kev ua lag luam kev sib tw ntawm cov khoom kawg. Cov txheej txheem no yuav txhaj cov yas molten rau hauv lub pwm kaw kab noj hniav nyob rau hauv siab siab, uas ces txias thiab solidifies tsim ib yam khoom ntawm ib tug predetermined zoo. Nws boasts qhov zoo xws li kev ua tau zoo ntau lawm, qhov zoo ntawm qhov tseeb, thiab muaj peev xwm los pwm cov txheej txheem nyuaj, thiab tau siv dav hauv kev lag luam tsheb, hluav taws xob, kev kho mob, ntim khoom, thiab cov khoom siv niaj hnub.
Qhov zoo ntawm kev txhaj tshuaj molded cov khoom nyob ntawm thawj thiab foremost ntawm kev xaiv thiab pretreatment ntawm raw cov ntaub ntawv. Cov khoom siv feem ntau suav nrog polypropylene (PP), polyethylene (PE), acrylonitrile-butadiene-styrene copolymer (ABS), thiab polycarbonate (PC). Cov ntaub ntawv sib txawv muaj qhov sib txawv tseem ceeb hauv kev ntws, shrinkage, kub tsis kam, thiab lub zog txhua yam. Cov ntaub ntawv nyoos yuav tsum tau qhuav kom huv si ua ntej muab tso rau hauv lub tshuab txhaj tshuaj molding kom tsis txhob muaj nyiaj streaks, npuas, los yog txo lub zog ntawm cov khoom nto vim yog cov dej noo ntau dhau. Rau kev hloov kho engineering plastics, lub uniformity ntawm muab tub lim thiab additive dispersion yuav tsum tau txiav txim siab los xyuas kom meej batch stability.
Pwm tsim thiab kev tsim khoom yog qhov tseem ceeb hauv kev txiav txim siab qhov tseeb ntawm cov khoom. Cov kab noj hniav qhov ntev yuav tsum ua tib zoo xav txog cov khoom siv shrinkage tus nqi thiab cov txheej txheem txheej txheem. Qhov chaw ntawm lub rooj vag, qhov kev sib tw khiav, thiab lub tshuab cua txias tsim ncaj qha cuam tshuam rau kev ua kom lub cev ntim thiab kev ntxhov siab sab hauv hauv cov khoom. Cov qauv pwm tsim nyog tsis yog tsuas yog txo qhov tsis xws luag xws li warpage thiab shrinkage marks tab sis kuj txhim kho qhov sib xws ntawm lub voj voog molding thiab ntau lawm efficiency. Tsis tas li ntawd, cov khoom siv pwm thiab cov txheej txheem kho saum npoo txiav txim siab nws qhov hnav tsis kam thiab kev ua haujlwm demolding, uas yog ib qho tseem ceeb rau kev ua haujlwm ntev - lub sij hawm ntau lawm.
Kev tswj cov txheej txheem tsis tau thaum lub sij hawm molding yog sib npaug indispensable. Qhov sib txuam ntawm kev txhaj tshuaj siab, tuav lub sijhawm, qhov kub thiab txias, thiab pwm kub txiav txim siab qhov tseeb ntawm pwm filling thiab crystallinity. Kev txhaj tshuaj ntau dhau yuav ua rau lub dav hlau los yog cov cua daig, ua rau muaj qhov tsis xws luag; Tsis tshua muaj siab tuav tau yooj yim ua rau tsis txaus qhov ntev los yog shrinkage kab noj hniav. Kev ua kom txias txias yog qhov tseem ceeb thaum lub caij txias kom txo qis kev ntxhov siab thiab kev pheej hmoo deformation. Cov cuab yeej txhaj tshuaj niaj hnub no feem ntau yog nruab nrog lub kaw - lub voj tswj qhov system uas tuaj yeem saib xyuas thiab hloov kho cov txheej txheem tsis raws sijhawm, txhim kho cov khoom sib xws.
Kev soj ntsuam zoo thiab tom qab- kev ua tiav yog cov kauj ruam tseem ceeb hauv kev ua kom ntseeg tau tias cov khoom txhaj tshuaj molded ua tau raws li daim ntawv thov. Kev tshuaj xyuas niaj hnub suav nrog kev ntsuas qhov ntev, kev tshuaj xyuas qhov muag, kev kuaj xyuas cov cuab yeej cuab tam, thiab kev ntsuam xyuas ib puag ncig. Rau cov khoom uas xav tau pob tshab lossis cov qauv zoo nkauj zoo nkauj, kev tshuaj xyuas qhov muag pom thiab kev tsom xam ntawm qhov roughness kuj tseem tsim nyog. Qee cov khoom yuav tsum tau ua tom qab- cov txheej txheem kho mob xws li annealing, ultrasonic vuam, los yog tshuaj tsuag los txhim kho kev ua haujlwm lossis ua tau raws li cov kev xav tau tshwj xeeb.
Hauv cov ntsiab lus, kev txhaj tshuaj molding ntau lawm yog ib txoj haujlwm tsim nyog uas yuav tsum tau tswj xyuas txhua yam, suav nrog cov ntaub ntawv, pwm, txheej txheem, thiab kev sim. Tsuas yog los ntawm kev txhim kho cov txheej txheem tsis tu ncua thiab kev tswj xyuas cov txheej txheem zoo tuaj yeem txhim kho cov khoom lag luam kev ntseeg siab thiab kev siv thev naus laus zis zoo nyob rau hauv lub ntsej muag ntawm kev sib tw ua lag luam hnyav.
