Lub hnab PE yog ib lub hnab uas peb siv ntau hauv peb lub neej txhua hnub, siv rau txhua yam txiv hmab txiv ntoo thiab zaub ntim, hnab yuav khoom, ntim khoom ua liaj ua teb, thiab lwm yam. Kev ua lub hnab yas yas yooj yim tuaj yeem nyuaj dua. Cov txheej txheem tsim lub hnab PE suav nrog cov yas me me - kev sib tov kub yaj - kev ncab extrusion - kev kho hluav taws xob -; Lub hnab PE feem ntau yog ntau cov txheej txheem saum toj no, yooj yim tom qab peb cov txheej txheem: tshuab zaj duab xis ------ luam ntawv ------ ua lub hnab.
Cov txheej txheem luam ntawv PE hnab yuav tsum tau them sai sai rau dab tsi?
Polyethylene, tiv taus kub tsawg heev (siv kub txog -70 ~ -100), ruaj khov tshuaj lom neeg, feem ntau acid thiab alkali erosion (nrog oxidizing acid intolerance), insoluble hauv cov kuab tshuaj dav dav ntawm chav tsev kub, nqus tsawg, zoo hluav taws xob rwb thaiv tsev. Txawm li cas los xij, polyethylene rhiab heev rau kev ntxhov siab ib puag ncig (kev ua tshuaj lom neeg thiab kev siv tshuab) thiab tsis zoo hauv kev laus cua sov. Cov khoom ntawm polyethylene sib txawv ntawm hom mus rau hom, feem ntau nyob ntawm cov qauv molecular thiab qhov ceev. Cov khoom nrog ntau qhov ceev (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 ib txwm muaj (saib Plastics processing).
Cov lus sau tseg txog cov txheej txheem hauv qab no yog dab tsi?
Cov txheej txheem tshuab zaj duab xis yuav tsum tau them sai sai rau cov ntsiab lus hauv qab no:
1. Qhov sib piv ntawm cov khoom siv raw: raws li ntau yam kev xav tau ntawm PE hnab, kev npaj ntawm ntau yam sib piv ntawm cov khoom siv raw. Piv txwv li: tiv thaiv static, tiv thaiv xeb, txo qis, hluav taws xob conductivity, biodegradation thiab lwm yam kev xav tau, ntxiv ntau yam khoom siv ntxiv xws li: siv liab, dub, xim thiab lwm yam xim, ntxiv ntau yam xim hau. Raws li pob tshab, tawv, lub zog rhuav tshem, nqus tsev thiab lwm yam kev xav tau, hloov ntau hom lossis hom ntawm PE cov ntaub ntawv. Piv txwv li: raws li cov kev xav tau tshwj xeeb, hais txog qhov yuav tsum tau ua ntawm pob tshab siab, muaj zog rhuav tshem, qhib zoo, yog li hloov qhov sib piv ntawm cov khoom siv raw.
2. cov txheej txheem ntawm tshuab luam ntawv zaj duab xis, qhov xav tau rau kev ua hluav taws xob, lub sijhawm no yuav tsum tau them sai sai rau lub zog ntawm kev ua hluav taws xob, kom ntseeg tau tias PE nruas khoom siv hluav taws xob ua lub zog (DAYIN) txaus kom ntseeg tau tias muaj kua nplaum.
3. nyob rau hauv cov txheej txheem ntawm tshuab zaj duab xis, raws li cov kev xav tau tshwj xeeb ntawm zaj duab xis, ib qho qhib, ob chav qhib, folding, siab qhov chaw puas tsuaj, embossing, nthuav dav thiab lwm yam haujlwm.
Cov txheej txheem luam ntawv PE hnab yuav tsum tau them sai sai rau cov teeb meem hauv qab no:
1. luam ntawv number case: number case raws li dej, number case qhuav sai, number case tsis pom, number case hloov xim, number case tiv thaiv cuav, number case induction, number case conductive, number case hluav taws xob qis, number case matte thiab lwm yam cwj mem yog number case.
2. Phaj luam ntawv: raws li qhov yuav tsum tau ua ntawm cov ntsiab lus luam ntawv, gravure (phaj tooj liab) luam ntawv thiab flexography (offset) luam ntawv siv. Ob txoj kev luam ntawv no sib txawv.
3. Raws li qhov nyuaj ntawm cov ntsiab lus luam ntawv thiab qhov nyuaj ntawm xim, xaiv txoj kev luam ntawv: luam ntawv monochrome, luam ntawv ob sab monochrome, luam ntawv ib sab xim, luam ntawv ob sab xim.
4. Raws li cov kev xav tau tshwj xeeb ntawm cov qauv luam ntawv, raws li cov yam ntxwv ntawm kev hloov pauv, tiv thaiv kev cuav, kev ua hluav taws xob, cov nplaum thiab lwm yam, xaiv cov kua mem sib txawv lossis cov khoom ntxiv.
Lub sijhawm tshaj tawm: Lub Peb Hlis-03-2022
