Kev tshaj lij chaw tsim khoom ntawm cov tshuab thermoforming.
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Kev tshaj lij chaw tsim khoom ntawm cov tshuab thermoforming.
Cov kauj ruam yooj yim ntawm Thermoforming
1. Kev npaj khoom siv
Thawj kauj ruam hauv cov txheej txheem thermoforming yog xaiv thiab npaj cov ntaub ntawv yas tsim nyog. Cov ntawv siv feem ntau suav nrog Polystyrene (PS), Polyethylene Terephthalate (PET), High Impact Polystyrene (HIPS), Polypropylene (PP), thiab Polylactic Acid (PLA). Cov khoom sib txawv muaj cov khoom sib txawv thiab tsim nyog rau ntau yam kev siv. Kev xaiv ntawm cov khoom siv yog lub hauv paus ntawm tag nrho cov txheej txheem ua tiav, yog li yuav tsum tau saib xyuas tshwj xeeb.
Table: Cov Khoom Siv Thermoforming thiab Lawv Cov Khoom
| Khoom siv | Cov ntawv luv | Cov khoom | Cov ntawv thov siv |
| Polystyrene | PS | Rigid, yooj yim rau txheej txheem | Cov khoom siv pov tseg, cov thawv ntim khoom |
| Polyethylene Terephthalate | PET | High transparency, cuam tshuam tsis kam | Lub raj mis haus, ntim khoom noj |
| High Impact Polystyrene | HIPS | Muaj zog cuam tshuam, zoo rigidity | Electronic vaj tse, ntim khoom noj khov |
| Polypropylene | PP | Zoo kub tsis kam, tshuaj stability | Kev ntim khoom noj, ntim tshuaj |
| Polylactic Acid | PLA | Biodegradable, eco-phooj ywg | Cov khoom siv compostable, bio ntim |
Thaum lub sij hawm npaj cov khoom siv, daim ntawv saum npoo kuj yuav tsum tau ntxuav kom tshem tawm cov plua plav lossis impurities uas tuaj yeem cuam tshuam rau kev tsim cov khoom zoo. Rau qee qhov kev thov siab, cov nplooj ntawv kuj tseem yuav tsum tau kho ua ntej, xws li siv cov tshuaj tiv thaiv zoo li qub lossis hloov kho qhov chaw.
2. Cua sov
Cua sov yog ib qho ntawm cov kauj ruam tseem ceeb tshaj plaws hauv cov txheej txheem thermoforming, qhov twg cov ntawv yas yog rhuab mus rau nws cov softening kub, ua rau nws txaus malleable. Cov cuab yeej siv cua sov feem ntau siv cov cua sov infrared los yog cov cua sov ua haujlwm kom ntseeg tau tias cov ntawv yog cua sov sib npaug.
Cov khoom sib txawv xav tau cov cua kub sib txawv thiab lub sijhawm. Piv txwv li, cov nplooj ntawv PET feem ntau yuav tsum tau ua kom sov hauv qhov kub ntawm 120-160 ° C, thaum HIPS nplooj ntawv feem ntau xav tau cua sov ntawm 80-120 ° C. Cov txheej txheem cua sov tsis tsuas yog xav txog cov khoom siv softening point tab sis kuj yuav tsum xyuas kom meej tias daim ntawv tsis decompose los yog degrade thaum cua sov. Yog li ntawd, kev tswj xyuas qhov kub thiab txias ntawm cov cuab yeej cua sov yog qhov tsim nyog, thiab kev ua kom txias lossis kev hloov pauv yuav xav tau thaum xav tau.
Hauv kev tsim khoom, qhov sib xws ntawm cov cua sov yog qhov tseem ceeb rau kev tsim kom zoo. Yog tias daim ntawv tsis raug cua sov sib npaug, nws yuav ua rau lub ntsej muag waviness, kev nyuaj siab, lossis qhov txawv txav ntawm cov khoom tiav. Cov teeb meem no tsis tsuas yog cuam tshuam rau qhov zoo ntawm cov khoom tab sis kuj tseem cuam tshuam rau nws cov khoom siv kho tshuab thiab kav ntev. Yog li ntawd, tshwj xeeb yuav tsum tau them nyiaj rau lub uniformity ntawm daim ntawv thaum lub sij hawm cua sov.
3. Kev tsim
Kev sib sau yog txheej txheem ntawm kev hloov cov ntawv yas rhuab rau hauv pwm thiab siv lub tshuab nqus tsev nqus, siab, lossis lub zog siv tshuab los tsim nws. Kev tsim cov txheej txheem tuaj yeem muab faib ua lub tshuab nqus tsev, kev sib sau ua haujlwm siab, thiab kev tsim tshuab, txhua tus muaj nws tus kheej zoo thiab kev siv.
Nyob rau hauv lub tshuab nqus tsev forming, daim ntawv yog zoo adhered rau cov pwm nto los tsim cov yam xav tau. Txoj kev no feem ntau yog siv los tsim cov khoom nyias nyias xws li cov khoom siv pov tseg thiab cov thawv ntim khoom noj. Kev sib sau ua ke nias cov ntawv rau hauv pwm, haum rau kev ua kom muaj zog thiab ua haujlwm zoo li cov khoom. Mechanical forming siv cov cuab yeej siv tshuab los siv lub siab ncaj qha, feem ntau yog siv los tsim cov khoom tuab-walled.
Thaum lub sij hawm tsim cov txheej txheem, tsis xws li siab, lub sij hawm, thiab kub yuav tsum tau tswj. Lub siab ntau dhau yuav ua rau daim ntawv tawg, thaum lub siab tsis txaus yuav ua rau cov khoom tsis tiav. Lub sijhawm ua haujlwm ntev yuav ua rau cov khoom laus, thaum lub sijhawm luv luv tuaj yeem tiv thaiv kev ua tiav ntawm cov khoom lag luam cov ntsiab lus.
4. Cua txias
Kev ua kom txias yog cov txheej txheem ntawm kev ua kom txias sai sai ntawm cov khoom yas tsim rau hauv lub xeev ruaj khov. Qhov txias txias ncaj qha cuam tshuam rau cov khoom lag luam qhov ruaj khov thiab qhov chaw zoo. Cov cua txias feem ntau yog ua los ntawm huab cua lossis dej, nyob ntawm seb cov khoom zoo li cas, cov khoom siv, thiab cov kev xav tau ntawm kev tsim khoom.
5. Txiav
Tom qab ua kom txias tiav, cov khoom tsim yuav tsum tau txiav kom tshem tawm cov khoom seem, ua kom cov npoo huv thiab meej. Cov khoom txiav yuav tsum tau tshuaj xyuas ntxiv kom ntseeg tau tias lawv ua tau raws li qhov yuav tsum tau muaj qhov ntev thiab cov duab.
6. Pov tseg
Cov khib nyiab tsim los ntawm cov txheej txheem thermoforming, xws li kev txiav ntug thiab cov khoom tsis zoo, feem ntau yog sau rau kev rov ua dua tshiab. Qhov no tsis yog tsuas yog pab txo cov khoom siv pov tseg xwb tab sis kuj ua tau raws li qhov xav tau ntawm ib puag ncig. Tom qab khaws cov khoom pov tseg, cov ntaub ntawv no tuaj yeem rov ua dua tshiab rau hauv cov ntawv tshiab rau kev tsim khoom txuas ntxiv.
Kev tshaj lij chaw tsim khoom ntawm cov tshuab thermoforming.
