cov khoom

Yam Tseem Ceeb cuam tshuam rau Composite Films Curing & Txhim Kho Cov Lus Qhia

Yuav kom ua tiav cov txiaj ntsig zoo tshaj plaws, ntau yam yuav tsum tau xav txog, suav nrog:

1. Daim ntawv kho cov chav tsev thiab cov xwm txheej zoo tagnrho: ceev thiab cov cua kub ntawm cov khoom siv cua sov thiab qhov av;hauv av thiab ob lossis ob peb sab ntawm chav tsev kho mob muaj qhov kub thiab txias cua sov;Qhov sib txawv me me ntawm qhov tseeb thiab qhov ntsuas kub, thiab kev txuag hluav taws xob thiab pov tseg pov tseg raws li qhov kev thov;zaj duab xis yob yog yooj yim txav thiab nqa.

2. Cov khoom ua tau raws li qhov kev thov.

3. Cov dej num, corona tus nqi, tshav kub tsis kam, thiab lwm yam ntawm lamination fims.

4. Adhesives: hnyav nplaum nplaum, kua nplaum tsis muaj kuab lom, ib qho los yog ob chav tiv thaiv dej hauv qab nplaum, kub yaj nplaum, thiab lwm yam.

Daim ntawv no tsuas yog tsom rau lamination zaj duab xis thiab cov nplaum.

1. Lamination zaj duab xis

Lub cev, tiv thaiv tshav kub thiab thaiv kev ua haujlwm ntawm PE zaj duab xis, uas yog siv dav, yuav zoo dua, thaum qhov ceev ntawm PE nce.PE zaj duab xis nrog tib qhov ntom tab sis cov txheej txheem tsim khoom sib txawv muaj qhov sib txawv.

CPE tuaj yeem ua kom txias sai, nrog cov crystallinity tsawg, siab transparency thiab tsawg turbidity.Tab sis molecular kev npaj yog irregularly, ua rau nws phem barrier kev ua tau zoo, uas yog siab transmittance.Thiab nws zoo ib yam nrog LDPE.Yog li ntawd, qhov kub thiab txias yuav tsum tsis txhob siab dhau thaum siv PE zaj duab xis.Thaum tshav kub tsis kam ntawm PE yog kev txhim kho, qhov kub thiab txias tuaj yeem siab dua.

2. Adhesives

2.1 EthylRaws li Adhesive

Raws li kev ua yeeb yam ntawm lamination zaj duab xis thiab cov nplaum, kev kho mob tuaj yeem muab faib ua ntau qib:

1. Kub 35, 24-48 hnub

2. Kub 35-40, 24-48 hnub

3. Kub 42-45, 48-72 : kuv

4. Kub 45-55, 48-96 : kuv

5. Tshwj xeeb, kub tshaj 100, lub sij hawm raws li kev txhawb nqa.

Rau cov khoom lag luam, xav txog qhov ntom, tuab, tiv thaiv thaiv, kev ua haujlwm kub ntawm cov yeeb yaj kiab raws li qhov loj ntawm lub hnab, qhov kub thiab txias yuav tsum tsis txhob siab dhau.Feem ntau, 42-45los yog qis dua yog txaus, lub sij hawm 48-72 teev.

Sab nrauv lamination zaj duab xis, uas yuav tsum tau muaj kev ua tau zoo thiab zoo tshav kub kuj yog haum rau kub curing, zoo li tshaj 50.Cov yeeb yaj kiab sab hauv, xws li PE lossis CPP thaum tshav kub kub sealing, yog haum rau 42-45, lub sijhawm kho yuav ntev dua.

Boiling lossis retort cov khoom, uas xav tau kev ua haujlwm siab thiab kub ua haujlwm siab, yuav tsum ua raws li cov txheej txheem kho uas lub Hoobkas nplaum muab.

Lub sijhawm kho yuav tsum ua raws li qhov ua tiav cov tshuaj tiv thaiv, kev sib txhuam coefficient thiab kev ua haujlwm kub sealing.

Cov khoom tshwj xeeb yuav xav tau kev kho kom sov siab dua.

2.2 Solventless Adhesive

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, tsis tshua muaj kub curing yog pom zoo, rau 38-40.

Yog tias qhov ua tiav cov tshuaj tiv thaiv ua tau raws li qhov yuav tsum tau ua, lub sijhawm kho yuav tsum tau txiav txim siab ntev dua.

Yog tias cov yeeb yaj kiab cua sov muaj qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ruaj. Yog tias qhov ua tiav cov tshuaj tiv thaiv thiab kev ua kom sov sealing xav tau kev txhim kho, lub sijhawm kho yuav tsum ntev dua.

Kev sim nruj me ntsis yog qhov yuav tsum tau ua ua ntej ntau lawm, kom ntseeg tau tias qhov zoo.

Dab tsi ntxiv, humidity yuav tsum xav txog.Tshwj xeeb tshaj yog nyob rau lub caij ntuj no qhuav, cov av noo tsim nyog tuaj yeem ua kom cov tshuaj tiv thaiv kab mob.

2.3 Dej raws li nplaum nplaum

Thaum laminating VMCPP, lamination tshuab yuav tsum qhuav txaus, los yog txheej aluminized yuav oxidized.Thaum kho, qhov kub yuav tsum tsis txhob siab dhau los yog qis dhau.Qhov kub thiab txias yuav ua rau muaj kev sib txhuam coefficient.

2.4 Kub Melt Adhesive

Feem ntau xaiv natural curing, tab sis adhesion kev ua tau zoo tom qab melting yuav tsum tau pom.

3. Ua kom nruj tswj qhov kub thiab txias

Raws li kev tshawb fawb, ntawm nam ntawm cov tshuaj tiv thaiv tus nqi, yuav luag tsis muaj cov tshuaj tiv thaiv qis dua 30. Tshaj 30,ib 10siab dua, cov tshuaj tiv thaiv tus nqi txhim kho li 4 npaug.Tab sis nws' s tsis yog los txhim kho qhov kub thiab txias kom nrawm cov tshuaj tiv thaiv qhov muag tsis pom, ntau yam yuav tsum tau pom:qhov tseeb cov tshuaj tiv thaiv, kev sib txhuam coefficient thiab kub sealing zog.

Yuav kom ua tiav qhov zoo tshaj plaws curing tshwm sim, curing kub yuav tsum tau muab faib ua ntau yam, raws li lamination films thiab cov qauv.

Txog tam sim no, cov teeb meem tshwm sim yog raws li hauv qab no:

Ib qho, curing kub yog tsawg dhau, ua cov tshuaj tiv thaiv qis, thiab cov khoom muaj teeb meem tom qab kub kaw los yog boiled.

Ob, curing kub yog siab dhau lawm thiab kub sealing zaj duab xis muaj tsawg ntom.Cov khoom muaj qhov tsis zoo kub sealing kev ua tau zoo, kev sib txhuam coefficient siab thiab tsis zoo los tiv thaiv thaiv.

4. Cov lus xaus

Yuav kom ua tiav qhov zoo tshaj plaws curing nyhuv, curing kub thiab lub sij hawm yuav tsum tau txiav txim siab los ntawm ib puag ncig kub thiab av noo, zaj duab xis kev ua tau zoo thiab nplaum ua hauj lwm.


Lub sij hawm xa tuaj: Plaub Hlis-22-2021