Xov xwm

Koj puas tau xav paub yuav ua li cas cov yeeb yaj kiab yas, cov khoom siv tseem ceeb hauv kev ntim khoom thiab suav tsis txheeb kev lag luam, yog tsim? Covyas zaj duab xis manufacturing txheej txheemyog txoj kev taug kev zoo siab uas hloov pauv cov ntaub ntawv nyoos polymer rau hauv cov yeeb yaj kiab uas muaj zog thiab ntau yam uas peb ntsib txhua hnub. Los ntawm cov hnab ntim khoom noj mus rau cov ntaub qhwv, kev nkag siab txog cov txheej txheem no ua rau pom tias yog vim li cas cov yeeb yaj kiab yas tseem ceeb heev hauv cov ntawv thov niaj hnub no.

Hauv tsab xov xwm no, peb yuav tshawb xyuas cov txheej txheem tsim khoom ib ntus, ntau yam ntaub ntawv koom nrog, thiab cov txheej txheem uas ua rau cov yeeb yaj kiab yas hloov mus rau cov kev xav tau sib txawv. Cov ncauj lus kom ntxaws no yuav ua rau koj nkag siab txog qhov zoo li cov khoom siv yooj yim no ua lub luag haujlwm tseem ceeb hauv ntiaj teb ib puag ncig peb.

Xaiv cov khoom zoo

Lub hauv paus ntawm cov txheej txheem tsim cov yas zaj duab xis yog nyob rau hauv kev xaiv cov khoom tsim nyog. Cov yeeb yaj kiab yas feem ntau yog tsim los ntawm cov polymers xws li polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), thiab polyethylene terephtha lig (PET).Txhua lub polymer muaj nws cov khoom tshwj xeeb, ua rau nws tsim nyog rau kev siv sib txawv.

LDPE (Low-Density Polyethylene):Paub txog nws qhov yooj yim thiab pob tshab, LDPE feem ntau yog siv rau hauv hnab yas thiab ntsws zaj duab xis.

HDPE (High-Density Polyethylene) : Cov khoom siv no yog tawv thiab tiv taus ntau dua, feem ntau siv rau cov hnab ntim khoom noj thiab cov hnab ntim khoom lag luam.

PP (polypropylene):Muab cov dej noo zoo tiv thaiv thiab pom tseeb, ua rau nws zoo tagnrho rau kev ntim khoom noj.

Kev xaiv cov polymer zoo nyob ntawm qhov xav tau ntawm cov yeeb yaj kiab kawg, xws li kev ua haujlwm ntev, yooj yim, thiab ua haujlwm kub lossis tshuaj lom neeg.

Extrusion - Lub plawv ntawm cov txheej txheem

Cov kauj ruam tom ntej hauv cov txheej txheem yas zaj duab xis yog extrusion. Qhov no yog qhov uas nyoos yas pellets yog yaj thiab hloov mus rau hauv daim ntawv txuas ntxiv ntawm zaj duab xis. Muaj ob txoj hauv kev ntawm extrusion siv los ua cov yeeb yaj kiab yas:

Blown Zaj duab xis Extrusion

Tshuab tshuab extrusion yog cov txheej txheem siv dav, tshwj xeeb tshaj yog rau cov yeeb yaj kiab siv hauv ntim. Nyob rau hauv cov txheej txheem no, lub melted polymer yog extruded los ntawm ib ncig tuag, tsim ib lub raj ntawm yas. Cua yog ces cua tshuab mus rau hauv lub raj, inflating nws zoo li lub zais pa. Raws li cov npuas nthuav dav, nws ncab cov yas mus rau hauv ib zaj duab xis nyias. Tom qab ntawd cov yeeb yaj kiab yog txias, flattened, thiab dov rau kev ua haujlwm ntxiv.

Blown film extrusion paub txog kev tsim cov yeeb yaj kiab uas muaj zog thiab yoog raws, ua rau nws zoo tagnrho rau cov khoom xws li stretch qhwv thiab hnab yas.

Cast Film Extrusion

Cam khwb cia zaj duab xis extrusion txawv ntawm txoj kev tshuab los ntawm kev siv lub tiaj tus tuag. Cov yas yaj yog extruded nyob rau hauv ib daim ntawv, uas yog txias sai sai rau chilled rollers. Cam khwb cia cov yeeb yaj kiab zoo li yuav muaj qhov pom tseeb zoo dua thiab cov tuab tuab tswj piv rau cov yeeb yaj kiab uas tau tawg. Txoj kev no feem ntau yog siv rau cov ntawv thov uas xav tau cov yeeb yaj kiab zoo, xws li ntim khoom noj lossis khoom siv kho mob.

Kev kho mob thiab Customization

Thaum cov yeeb yaj kiab yog extruded, nws yuav raug kho ntxiv los txhim kho nws cov kev ua tau zoo thiab siv tau. Cov kev kho mob no ua kom cov yeeb yaj kiab ua tau raws li kev lag luam tshwj xeeb thiab suav nrog:

Kev kho mob Corona:Kev kho deg uas ua rau kom cov yeeb yaj kiab adhesion, ua rau nws zoo dua txais cov ntawv luam ntawv lossis cov txheej txheem. Qhov no yog ib qho tseem ceeb rau kev ntim cov yeeb yaj kiab uas xav tau kev lag luam lossis kev sau npe.

Anti-static Treatments:Siv rau cov yeeb yaj kiab kom txo tau cov hluav taws xob zoo li qub, ua rau lawv yooj yim dua los tuav thiab tiv thaiv cov plua plav lossis cov khib nyiab los ntawm kev clinging rau saum npoo.

Kev tiv thaiv UV:Rau cov yeeb yaj kiab raug tshav ntuj, UV inhibitors tuaj yeem raug ntxiv los tiv thaiv kev degradation los ntawm ultraviolet lub teeb, ua kom lub neej ntev ntawm cov khoom.

Lwm cov additives yuav raug qhia thaum lub sij hawm extrusion txheej txheem los txhim kho cov yam ntxwv xws li kub tsis kam, tsim kua muag zog, los yog noo noo barriers.

Txiav, Rolling, thiab Kev Tswj Xyuas Zoo

Tom qab kev kho mob, cov yas zaj duab xis yog npaj los txiav thiab dov raws li qhov xav tau loj thiab tuab. Cov kauj ruam no yog qhov tseem ceeb rau kev ua kom muaj kev sib haum xeeb thiab ua tau raws li cov neeg siv khoom xav tau. Cov yeeb yaj kiab feem ntau raug mob rau cov yob loj, ua kom yooj yim rau kev thauj thiab tuav.

Kev tswj kom zoo yog ib qho tseem ceeb ntawm cov txheej txheem tsim cov yas zaj duab xis. Kev ntsuam xyuas yog ua los xyuas kom meej tias cov yeeb yaj kiab ua tau raws li cov qauv tsim nyog rau thickness, lub zog, yooj, thiab pob tshab. Qhov tsis zoo xws li cov pinholes, qhov chaw tsis muaj zog, lossis cov tuab tsis sib xws tuaj yeem ua rau cov khoom lag luam tsis ua haujlwm, yog li cov tuam txhab lag luam nqis peev ntau rau hauv kev saib xyuas thiab kev sim.

Kev siv thiab kev lag luam siv

Cov khoom kawg ntawm cov txheej txheem tsim cov yas zaj duab xis pom nws txoj hauv kev rau suav tsis txheeb siv thoob plaws kev lag luam. Qee qhov kev siv ntau tshaj plaws suav nrog:

Ntim Cov Khoom Noj:Yas zaj duab xis muab kev tiv thaiv tiv thaiv ya raws, oxygen, thiab cov kab mob sib kis, pab khaws cia tshiab.

Cov yeeb yaj kiab kho mob: Hauv kev kho mob, cov yeeb yaj kiab yas tsis muaj menyuam yog siv los ntim cov khoom siv kho mob thiab cov cuab yeej phais.

Agricultural Films: Siv hauv tsev cog khoom thiab kev tiv thaiv qoob loo, cov yeeb yaj kiab no pab tswj ib puag ncig kom zoo dua cov nroj tsuag.

Nyob rau hauv kev lag luam chaw, yas zaj duab xis yog siv rau pallet wrapping, tiv thaiv nto, thiab ua liner rau cov ntim tshuaj. Kev yoog raws thiab kev hloov pauv ntawm cov yeeb yaj kiab yas ua rau nws tseem ceeb hauv cov haujlwm no.

Xaus

Cov txheej txheem tsim cov yeeb yaj kiab yas yog cov txheej txheem nyuaj thiab tswj tau zoo uas hloov cov ntaub ntawv raw rau hauv ntau yam thiab cov khoom tseem ceeb. Los ntawm kev xaiv cov khoom siv rau extrusion, kev kho mob, thiab kev tswj kom zoo, txhua kauj ruam ua kom cov yeeb yaj kiab kawg ua tau raws li cov kev cai tshwj xeeb ntawm ntau yam kev lag luam. Kev nkag siab txog cov txheej txheem no tsis yog tsuas yog muab kev nkag siab txog qhov tseem ceeb ntawm cov yeeb yaj kiab yas, tab sis kuj tseem qhia txog cov cuab yeej technology thiab kev ua tau zoo ntawm kev tsim khoom.

Yog tias koj tab tom nrhiav kom paub ntau ntxiv txog cov txheej txheem tsim cov yeeb yaj kiab yas lossis nws cov kev siv ntau yam, nyob twj ywm tshiab nrog kev lag luam tiam sis kev nce qib los ntawm kev tshawb nrhiav cov kws tshaj lij thiab cov peev txheej. Qhov kev paub no tuaj yeem pab koj txiav txim siab paub ntau ntxiv hauv koj txoj kev lag luam.