Polyethylene (PE) zaj duab xis yog ib yam khoom nyias, hloov tau los ntawm polyethylene polymer uas tau siv dav rau kev ntim khoom, kev tiv thaiv, thiab lwm yam kev siv.Kev tsim cov txheej txheem ntawm polyethylene zaj duab xis tuaj yeem muab faib ua ntau theem:
- Resin ntau lawm: Thawj kauj ruam hauv kev tsim khoom yog tsim cov khoom siv raw, uas yog hom polyethylene resin.Qhov no yog ua los ntawm polymerization, cov txheej txheem tshuaj uas tsim cov chains ntev ntawm polymer molecules los ntawm monomers xws li ethylene.Tom qab ntawd cov resin yog pelletized, qhuav, thiab khaws cia rau kev ua haujlwm ntxiv.
- Extrusion: Cov theem tom ntej yog hloov cov resin rau hauv zaj duab xis.Qhov no yog ua los ntawm kev hla cov resin los ntawm extruder, lub tshuab uas yaj cov resin thiab quab yuam nws los ntawm qhov qhib me me hu ua tuag.Lub melted resin cools down thiab solidifies raws li nws yog extruded, tsim ib daim ntawv txuas ntxiv ntawm zaj duab xis.
- Txias thiab winding: Tom qab cov zaj duab xis yog extruded, nws yog txias mus rau chav tsev kub thiab kis mus rau ib tug yob.Cov yeeb yaj kiab tuaj yeem ncab thiab taw qhia thaum lub sijhawm txheej txheem no, uas txhim kho nws cov khoom siv kho tshuab thiab ua rau nws zoo ib yam.
- Calendering: Cov yeeb yaj kiab tuaj yeem ua tiav los ntawm cov txheej txheem hu ua calendering, nyob rau hauv uas nws tau dhau los ntawm ib txheej ntawm cov rhuab rollers los tsim ib tug du thiab glossy nto.
- Lamination: Zaj duab xis tuaj yeem ua ke nrog lwm cov ntaub ntawv los tsim cov qauv laminated.Qhov no feem ntau yog ua los ntawm kev siv cov nplaum txheej ntawm ob lossis ntau txheej ntawm zaj duab xis, uas muab cov khoom thaiv kev txhim kho thiab txhim kho kev ua haujlwm ntawm cov khoom kawg.
- Kev luam tawm thiab txiav: Cov khoom siv zaj duab xis zaum kawg tuaj yeem luam tawm nrog cov qauv xav tau lossis cov duab kos, thiab tom qab ntawd txiav rau hauv qhov xav tau loj thiab cov duab rau cov ntawv thov tshwj xeeb.
Cov theem no tuaj yeem sib txawv nyob ntawm cov khoom xav tau thiab kev siv kawg ntawm cov yeeb yaj kiab polyethylene, tab sis cov txheej txheem yooj yim tseem zoo ib yam.
Post lub sij hawm: Mar-04-2023