PE hnab yog ib lub hnab uas muaj nyob rau hauv peb lub neej txhua hnub, siv rau txhua yam ntawm cov txiv hmab txiv ntoo thiab zaub ntim, lub hnab khw, cov khoom ua liaj ua teb ntim, thiab lwm yam. PE hnab tsim cov txheej txheem suav nrog cov khoom yas - cov khoom siv hluav taws xob sib xyaw ua ke - extrusion stretching - kev kho hluav taws xob -; PE hnab feem ntau yog cov txheej txheem saum toj no, yooj yim tom qab peb txheej txheem: tshuab tshuab ------- luam ntawv ------- lub hnab ua.
PE hnab luam ntawv txheej txheem yuav tsum xyuam xim rau dab tsi?
Polyethylene, zoo heev tsis kub tsis kam (siv kub txog -70 ~ -100), tshuaj stability, feem ntau acid thiab alkali yaig (nrog oxidizing acid intolerance), insoluble nyob rau hauv cov kuab tshuaj nyob rau hauv lub chav tsev kub, tsis tshua muaj absorption, zoo hluav taws xob rwb thaiv tsev kev ua tau zoo. Txawm li cas los xij, polyethylene yog rhiab heev rau ib puag ncig kev ntxhov siab (tshuaj lom neeg thiab kev ua haujlwm) thiab tsis zoo rau kev laus thaum tshav kub kub. Cov khoom ntawm polyethylene sib txawv ntawm hom mus rau hom, feem ntau nyob ntawm cov qauv molecular thiab ntom. Cov khoom uas muaj qhov sib txawv (0.91-0.96 G / CM3) tuaj yeem tau txais los ntawm ntau txoj kev tsim khoom. Polyethylene tuaj yeem ua tiav los ntawm cov txheej txheem thermoplastic zoo tib yam (saib Plastics processing).
Cov ntawv sau muaj feem cuam tshuam txog cov txheej txheem hauv qab no yog dab tsi?
Zaj duab xis tshuab tshuab yuav tsum xyuam xim rau cov ntsiab lus hauv qab no:
1. Cov khoom siv raw khoom: raws li ntau yam kev xav tau ntawm PE hnab, kev npaj sib txawv ntawm cov khoom siv raw. Piv txwv li: anti-static, anti-xeb, mitigation, hluav taws xob conductivity, biodegradation thiab lwm yam yuav tsum tau, ntxiv ntau yam auxiliary additives piv txwv li: siv liab, dub, xim thiab lwm yam xim, ntxiv ntau yam xim caps. Raws li pob tshab, toughness, tsim kua muag lub zog, lub tshuab nqus tsev extraction thiab lwm yam yuav tsum tau, hloov ntau yam hom los yog hom ntawm cov ntaub ntawv PE. Piv txwv li: raws li cov kev cai tshwj xeeb, hais txog qhov yuav tsum tau muaj siab transparency, muaj zog tearing, zoo openness, thiaj li hloov pauv feem ntawm raw khoom.
2. cov txheej txheem ntawm tshuab tshuab luam ntawv, qhov xav tau ntawm cov khoom siv hluav taws xob, lub sijhawm no yuav tsum tau them sai sai rau lub zog ntawm cov khoom siv hluav taws xob, kom ntseeg tau tias PE nruas cov khoom siv hluav taws xob ua lub zog (DAYIN) txaus los xyuas kom meej cov number case adhesion.
3.nyob rau hauv cov txheej txheem ntawm tshuab tshuab, raws li qhov tshwj xeeb yuav tsum tau ntawm cov zaj duab xis, ib qho qhib, ob chav qhib, folding, siab point puas, embossing, expansion thiab lwm yam kev khiav hauj lwm.
PE hnab luam ntawv txheej txheem yuav tsum xyuam xim rau cov teeb meem hauv qab no:
1.printing ink: dej-raws li number case, ceev kom qhuav ink, invisible ink, color-hloov number case, anti-counterfeiting ink, induction ink ink, conductive ink, tsawg hluav taws xob ink, matte number case thiab lwm yam ink yam ntxwv yog number case.
2. Printing phaj: raws li cov kev cai zoo ntawm cov ntsiab lus luam ntawv, gravure (tooj liab phaj) luam ntawv thiab flexography (offset) luam ntawv yog siv. Ob txoj kev luam ntawv sib txawv no.
3. Raws li qhov nyuaj ntawm cov ntsiab lus luam ntawv thiab xim complexity, xaiv txoj kev luam ntawv: monochrome printing, monochrome ob-sided luam ntawv, ib-sab xim luam ntawv, ob-sided xim luam ntawv.
4. Raws li cov kev cai tshwj xeeb ntawm cov qauv luam ntawv, raws li cov yam ntxwv ntawm discoloration, tiv thaiv cov khoom cuav, hluav taws xob conductivity, adhesives thiab lwm yam, xaiv cov xim sib txawv los yog cov khoom siv ntxiv.
Post lub sij hawm: Mar-03-2022