1. Lim thiab sib xyaw nozzle
Yas impurities tuaj yeem raug tshem tawm los ntawm cov lim dej ntawm qhov txuas ntxiv, uas yog, cov yaj thiab cov yas ntws los ntawm cov channel, uas tau muab cais rau hauv qhov chaw nqaim los ntawm qhov ntxig.Cov qhov nqaim thiab qhov khoob no tuaj yeem tshem tawm cov impurities thiab txhim kho kev sib xyaw ntawm cov yas.Yog li ntawd, cov khoom siv ruaj khov tuaj yeem siv los ua kom muaj txiaj ntsig zoo sib xyaw.Cov cuab yeej no tuaj yeem ntsia nruab nrab ntawm lub tog raj kheej txhaj tshuaj thiab lub tshuab txhaj tshuaj kom sib cais thiab rov ua cov kua nplaum molten.Feem ntau ntawm lawv ua cov yaj ntws los ntawm cov hlau stainless channel.
2. Ncua tseg
Qee cov yas yuav tsum tau muab tso rau hauv lub tog raj kheej txhaj tshuaj thaum txhaj tshuaj molding kom tso cai rau cov pa tawm.Feem ntau, cov pa roj no tsuas yog cua xwb, tab sis lawv yuav yog dej los yog ib leeg-molecule gases tso tawm los ntawm melting.Yog tias cov pa roj no tsis tuaj yeem tso tawm, lawv yuav raug compressed los ntawm cov kua nplaum yaj thiab coj mus rau hauv pwm, uas yuav nthuav thiab tsim cov npuas hauv cov khoom.Txhawm rau tso cov pa roj ua ntej nws mus txog lub nozzle lossis pwm, txo lossis txo txoj kab uas hla ntawm cov ntsia hlau hauv paus kom depressurize cov yaj hauv lub tog raj kheej txhaj tshuaj.
Ntawm no, cov roj tuaj yeem tawm ntawm lub qhov lossis qhov ntawm lub tog raj kheej txhaj tshuaj.Tom qab ntawd, txoj kab uas hla ntawm cov ntsia hlau hauv paus yog nce, thiab cov kua nplaum yaj nrog cov volatiles tshem tawm yog siv rau lub nozzle.Txhaj tshuaj molding tshuab nruab nrog qhov chaw no yog hu ua lub tshuab tso tshuaj molding tshuab.Sab saum toj ntawm lub tshuab nqus tsev txhaj tshuaj molding, yuav tsum muaj lub tshuab hluav taws xob catalytic thiab cov pa luam yeeb zoo kom tshem tawm cov roj uas muaj teeb meem.
3. Kos lub valve
Tsis muaj teeb meem dab tsi ntawm cov ntsia hlau siv, nws cov lus qhia feem ntau yog nruab nrog lub valve nres.Txhawm rau tiv thaiv cov yas los ntawm kev ntws tawm ntawm lub nozzle, lub siab txo qis (rov qab hlua) cov cuab yeej lossis lub nozzle tshwj xeeb tseem yuav raug teeb tsa.Nyob rau hauv rooj plaub ntawm kev siv cov khoom siv tiv thaiv kev rho menyuam thiab kev lag luam, nws yuav tsum tau kuaj xyuas tsis tu ncua, vim tias nws yog ib qho tseem ceeb ntawm lub tog raj kheej tua hluav taws.Tam sim no, qhov hloov hom nozzle tsis tau siv dav, vim tias nws yooj yim rau xau yas thiab decompose hauv cov khoom siv.Tam sim no, txhua hom yas muaj ib daim ntawv teev cov hom phom tua phom.
4. Kev sib hloov ceev ntawm cov ntsia hlau
Kev sib hloov ceev ntawm cov ntsia hlau cuam tshuam rau kev ruaj ntseg ntawm cov txheej txheem txhaj tshuaj molding thiab cov cua sov ua haujlwm ntawm cov yas.Qhov ceev ntawm cov ntsia hlau tig, qhov kub thiab txias.Thaum cov ntsia hlau tig ntawm qhov kev kub ceev, kev sib txhuam (shear) lub zog xa mus rau cov yas txhim kho cov plasticizing efficiency, tab sis kuj ua rau qhov tsis sib xws ntawm cov yaj kub.Vim qhov tseem ceeb ntawm cov ntsia hlau nto nrawm, cov ntsia hlau tig ceev ntawm cov tshuab txhaj tshuaj loj loj yuav tsum tsawg dua li ntawm cov tshuab me me, vim tias cov cua sov shear uas tsim los ntawm cov ntsia hlau loj yog ntau dua li ntawm cov khoom siv. me me ntsia hlau ntawm tib qhov kev sib hloov ceev.Vim muaj cov yas sib txawv, qhov ceev ntawm cov ntsia hlau tig kuj sib txawv.
5. Kev kwv yees ntawm plasticizing muaj peev xwm
Txhawm rau txiav txim siab seb cov khoom lag luam puas tuaj yeem tswj hwm tag nrho cov txheej txheem tsim khoom, cov qauv yooj yim ntsig txog cov zis thiab cov khoom siv yas tuaj yeem siv tau raws li hauv qab no: T = (tag nrho cov tshuab txhaj tshuaj gx3600) ÷ (plasticizing tus nqi ntawm kev txhaj tshuaj molding tshuab kg / hx1000 ) t yog lub sij hawm voj voog yam tsawg kawg nkaus.Yog hais tias lub voj voog lub sij hawm ntawm cov pwm qis dua t, lub tshuab txhaj tshuaj molding tsis tuaj yeem ua tiav cov yas kom ua tiav cov viscosity zoo li qub, yog li qhov kev txhaj tshuaj molding feem ntau muaj qhov sib txawv.Tshwj xeeb, thaum txhaj tshuaj molding nyias-walled lossis precision kam rau ua cov khoom, cov nyiaj txhaj tshuaj thiab cov nyiaj yas yuav tsum sib phim.
6. Xam lub sijhawm khaws cia thiab qhov tseem ceeb
Raws li kev xyaum dav dav, lub sijhawm nyob ntawm qee yam yas ntawm ib lub tshuab txhaj tshuaj molding yuav tsum raug xam.Tshwj xeeb tshaj yog thaum lub tshuab txhaj tshuaj loj loj siv qhov txhaj tshuaj me me, cov yas yog yooj yim rau decompose, uas tsis pom los ntawm kev soj ntsuam.Yog tias lub sijhawm khaws cia luv luv, cov yas yuav tsis yog plasticized uniformly;Cov cuab yeej yas yuav lwj nrog lub sijhawm khaws cia.
Yog li ntawd, lub sijhawm khaws cia yuav tsum ua kom zoo ib yam.Txoj kev: txhawm rau xyuas kom meej tias cov khoom siv yas nkag mus rau hauv lub tshuab txhaj tshuaj molding muaj qhov ruaj khov, qhov loj me thiab cov duab zoo ib yam.Yog tias muaj qhov txawv txav lossis poob ntawm qhov chaw ntawm lub tshuab txhaj tshuaj molding, qhia rau lub chaw saib xyuas.
7. Pwm kub
Nco ntsoov xyuas seb lub tshuab txhaj tshuaj molding puas tau teeb tsa thiab ua haujlwm ntawm qhov kub thiab txias uas tau teev tseg hauv daim ntawv teev npe.Qhov no tseem ceeb heev.Vim tias qhov kub thiab txias yuav cuam tshuam rau qhov chaw tiav thiab tawm los ntawm kev txhaj tshuaj molded qhov chaw.Txhua qhov ntsuas qhov ntsuas yuav tsum tau sau tseg thiab lub tshuab txhaj tshuaj molding raug kuaj xyuas lub sijhawm teev tseg.
Post lub sij hawm: Aug-15-2022