Kev txhaj tshuaj molding, raws li cov txheej txheem siv dav tshaj plaws hauv kev ua cov khoom siv yas, yog raws li lub hauv paus ntsiab lus ntawm kev txhaj tshuaj molten yas rau hauv cov pwm kaw. Tom qab txias thiab solidification, cov khoom yas ua raws li cov qauv ntawm cov pwm kab noj hniav tau txais. Cov txheej txheem no suav nrog ntau cov kauj ruam tseem ceeb thiab cov ntsiab lus, uas ua ke tsim cov txheej txheem thev naus laus zis ntawm kev txhaj tshuaj molding.
Ua ntej, qhov yuav tsum tau ua ua ntej rau kev txhaj tshuaj molding yog kev npaj cov khoom siv yas tsim nyog. Cov khoom siv raw no feem ntau yog nyob rau hauv daim ntawv granular. Nyob ntawm qhov kev ua tau zoo ntawm cov khoom, ntau hom yas tuaj yeem xaiv tau, xws li polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS, thiab lwm yam.
Tom ntej no yog cov txheej txheem melting ntawm cov yas. Cov kauj ruam no feem ntau yog ua tiav nyob rau hauv lub rhaub dej kub ntawm lub tshuab txhaj tshuaj molding. Lub thoob yog nruab nrog cov khoom cua sov, thiab los ntawm kev tswj qhov kub thiab txias, cov yas granules tau maj mam yaj thiab ncav cuag lub xeev tsim nyog. Kev tswj kub ntawm cov yas molten yog qhov tseem ceeb heev; Qhov kub thiab txias heev yuav ua rau cov yas decompose, thaum qhov kub thiab txias heev yuav cuam tshuam rau cov flowability, ob qho tib si yog detrimental rau molding zoo.
Tom qab ntawd, molten yas, propelled los ntawm cov ntsia hlau ntawm lub tshuab txhaj tshuaj molding, nkag mus rau hauv pwm qhov rooj kaw lus los ntawm lub nozzle. Lub rooj vag system tsim yuav tsum xav txog cov yas txoj kev ntws, ntim ceev, thiab kev xa tawm siab kom ntseeg tau tias cov yas tsis sib xws thiab ceev nrooj puv cov kab noj hniav. Optimizing lub rooj vag system yog qhov tseem ceeb rau kev txo cov khoom tsis xws luag thiab txhim kho kev tsim khoom.
Thaum lub sij hawm ua cov txheej txheem yas, cov pwm yuav tsum tau kaw kom tsis txhob muaj cov yas ntim. Pwm tsim thiab tsim khoom yog lwm qhov tseem ceeb ntawm kev txhaj tshuaj molding. Cov duab, qhov tseeb qhov tseeb, thiab qhov zoo ntawm cov pwm kab noj hniav ncaj qha txiav txim siab qhov khoom kawg. Tib lub sijhawm, cov pwm yuav tsum muaj qhov ua tau zoo ntawm qhov cua kom tsis txhob muaj qhov tsis xws luag xws li cua npuas thaum lub sij hawm molding.
Tom qab cov yas tau ntim lawm, nws nkag mus rau theem txias thiab solidification. Cov pwm feem ntau muaj cov dej txias txias uas ntws cov dej txias kom tshem tawm cov cua sov los ntawm cov yas, cia nws maj mam solidify. Tus nqi cua txias thiab lub sijhawm yuav tsum raug tswj xyuas raws li hom yas thiab cov khoom tuab kom ntseeg tau tias cov khoom ruaj khov thiab lub cev muaj zog.
Thaum kawg, thaum cov khoom tiav tiav, cov pwm qhib, thiab cov khoom raug tshem tawm ntawm pwm los ntawm ejector mechanism, ua tiav ib lub voj voog txhaj tshuaj molding. Thoob plaws hauv cov txheej txheem, kev tswj xyuas qhov tseeb ntawm kev txhaj tshuaj molding tshuab, tsim thiab tsim qib pwm, thiab qhov kev ua kom zoo ntawm cov txheej txheem tsis suav nrog txiav txim siab qhov zoo ntawm cov khoom tiav thiab kev ua haujlwm zoo.
Kev txhaj tshuaj molding, vim nws cov kev ua haujlwm siab, kev yooj yim, thiab muaj peev xwm tsim cov duab nyuaj, tau siv dav hauv ntau yam xws li tsheb, khoom siv hluav taws xob, khoom siv hauv tsev, thiab khoom siv txhua hnub. Nrog rau kev nce qib ntawm cov ntaub ntawv tshawb fawb thiab pwm thev naus laus zis, kev txhaj tshuaj molding tseem niaj hnub tsim thiab txhim kho, muab kev txhawb zog rau kev sib txawv thiab kev ua haujlwm siab ntawm cov khoom yas.
