Yuav kom ua tiav cov txiaj ntsig zoo tshaj plaws, ntau yam xav tau, suav nrog:
1. Daim ntawv kho cov chav tsev thiab cov xwm txheej zoo tagnrho: ceev thiab muaj cua kub los ntawm cua kub ntaus ntawv thiab qhov; hauv av thiab ob lossis ob peb sab ntawm chav tsev kho tau muaj txaus thiab tso cua sov kub kub cua; Kev sib txawv me me ntawm qhov tseeb thiab qhov ntsuas kub, thiab kev txuag hluav taws thiab cov ntaub so pov tseg tau raws li cov lus thov; Film Rolls yog yooj yim txav thiab coj.
2. Cov khoom lag luam tau raws cov kev thov kev ua haujlwm.
3. Cov haujlwm, Corona tus nqi, tshav kub tiv, thiab lwm yam ntawm Lamination FIMS.
4. Cov nplaum: Cov qauv nplaum, ib leeg lossis ob qho khoom siv dej nplaum, kub yaj cov nplaum, thiab lwm yam.
Daim ntawv no tsuas yog qhia txog Lamination zaj duab xis thiab cov nplaum.
1. Lamination Films
Lub cev, kub tawm tsam thiab kev ua yeeb yam ntawm PE zaj duab xis, uas yog siv dav, yuav zoo dua, thaum lub ntom ntaug ntawm PE sawv. PE Films nrog cov ceev ntom tab sis cov khoom ua kom sib txawv cov txheej txheem muaj kev ua yeeb yam sib txawv.
CPE tuaj yeem txias nrawm, nrog tsawg crystalloininity, siab pob tshab thiab qis turbidity. Tab sis molecular kev npaj yog irregularly, ua rau nws tsis zoo teeb meem kev ua tau zoo, uas yog kev hloov siab. Thiab nws yog tib yam nrog LDPE. Yog li ntawd, kho qhov kub yuav tsum tsis txhob ua dhau los thaum siv PE Films. Thaum cov cua sov tsis kam ntawm PE yog txhim kho, qhov kev kho qhov kub tuaj yeem ua siab dua.
2. Cov txujces
2.1 ethylRaws li cov nplaum
Raws li kev ua yeeb yam ntawm Lamination Films thiab cov nplaum, kev kho mob tuaj yeem faib ua ntau qib:
1. Kub 35 35℃, lub sijhawm 24-48h
2. Kub 35-40℃, lub sijhawm 24-48h
3. Qhov kub 42-45℃, lub sijhawm 48-72h
4. Kub 45-55℃, Sijhawm 48-96H
5. Tshwj Xeeb, Kub Dua 100℃, lub sijhawm raws li kev pab txhawb kev.
Rau cov khoom lag luam, xav txog qhov ntom ntom, tuab, tiv thaiv kev ua tau zoo, cov cua sov tsis kam ntawm cov hnab duab nrog rau qhov loj me, kho qhov kub yuav tsum tsis txhob siab dhau. Feem ntau, 42-45℃lossis qis dua yog txaus, sijhawm 48-72 teev.
Txheej Txheem Lamination Films, uas yuav tsum muaj kev ua tau zoo thiab ua kom kub kub ua tau zoo rau kev kho kom haum, zoo li 50℃Cov. Cov yeeb yaj kiab sab hauv, zoo li PE lossis tshav kub khi CPP, haum rau 42-45℃, Kev kho lub sijhawm yuav ntev dua.
Boiling lossis retort cov khoom lag luam, uas xav tau kev ua haujlwm siab thiab siab kub ua kom haum, yuav tsum ua kom haum rau kev kho cov xwm txheej uas cov nplaum me me muab.
Kev kho lub sijhawm yuav tsum ua kom raws li cov tshuaj tiv thaiv ua tiav tus nqi, kev txhuam cov coefficient thiab kev kub ceev sealing.
Cov khoom tshwj xeeb yuav xav tau kub siab dua.
2.2 solvessless nplaum nplaum
Yog tias kev sib khi ua tau zoo ua tau raws li qhov yuav tsum tau ua, ntawm cov yeeb yaj kiab uas nyob sab hauv muaj tsawg monomers muaj ntau tus monomers dawb, ua rau nws nyuaj rau lub ntsej muag. Yog li ntawd, kev kho kub kub tsawg yog pom zoo, rau 38-40℃.
Yog tias cov tshuaj tiv thaiv ua tiav qhov kev ua tiav tau raws li qhov yuav tsum tau ua tiav, lub sijhawm kho tau ntev dua yuav tsum tau txiav txim siab.
Yog tias kub sealing cov yeeb yaj kiab muaj qhov ntom ntom ntom ntom, kub yuav tsum yog 40-45℃. Yog tias cov tshuaj tiv thaiv ua tiav tus nqi thiab kev ua kom kub sib tsoo tau txhim kho, lub sijhawm kho yuav tsum ntev dua.
Kev sim nruj me ntsis yog qhov yuav tsum ua ntej pawg ntau lawm, kom paub tseeb.
Dab tsi ntxiv, av noo yuav tsum tau txiav txim siab. Tshwj xeeb tshaj yog nyob rau lub caij ntuj no qhuav, cov av noo kom zoo yuav ua kom nrawm kis tus nqi.
2.3 Dej raws cov nplaum
Thaum laminating vmcpp, lamination tshuab yuav tsum tau qhuav txaus, los yog aluminized txheej yuav oxidized. Thaum lub sij hawm kho, qhov kub yuav tsum tsis txhob siab dhau lossis qis dhau. Kev kub siab yuav ua rau kev sib txhuam siab rau kev sib txhuam.
2.4 Kub Qhuav Adhesive
Feem ntau xaiv lub ntuj kho, tab sis Adhesion kev ua haujlwm tom qab melting yuav tsum tau pom.
3. Nruj tswj qhov kub
Raws li kev tshawb fawb, ntawm cov kev sib xws ntawm cov tshuaj tiv thaiv tus nqi, muaj ze li tsis muaj kev cuam tshuam nyob rau hauv 30℃. Tshaj 30℃, txhua 10℃siab dua, cov tshuaj tiv thaiv cov tshuaj tiv thaiv kev txhim kho txog 4 zaug. Tab sis nws's tsis yog lawm los txhim kho qhov ntsuas kub kom nrawm tus nqi dig muag, ntau yam yuav tsum tau pom:Cov tshuaj tiv thaiv kev coj ua, kev sib txhuam coefficient thiab tshav kub tswm.
Yuav kom ua tiav qhov kev kho tau zoo tshaj plaws, kev kho tus kub yuav tsum muab faib ua cov yeeb yaj kiab sib txawv, raws li cov duab Lamination thiab cov qauv tsim.
Txog rau tam sim no, teeb meem ib txwm muaj raws li hauv qab no:
Ib qho, kho qhov kub yog tsawg dhau, ua cov tshuaj tiv thaiv qis, thiab cov khoom muaj teeb meem tom qab sib khi kub lossis hau.
Ob, kho qhov kub yog qhov siab heev thiab kub sealing zaj duab xis muaj tsawg ntom ntom. Cov khoom muaj kev sib tw kub tsis zoo, cov kev sib txhuam siab cov coefficient thiab phem los tiv thaiv kev cuam tshuam.
4. Xaus
Yuav kom ua tiav qhov zoo tshaj plaws kho cov nyhuv zoo, kho qhov kub thiab lub sijhawm yuav tsum tau txiav txim siab los ntawm ib puag ncig kub thiab av noo, zaj duab xis, zaj duab xis thiab kev ua yeeb yaj kiab ua yeeb yaj kiab thiab kev ua yeeb yaj kiab.
Ncua Sijhawm: Apr-22-2021