Raws li lub caij ntuj no los txog, qhov kub thiab txias tau qis dua, thiab qee qhov teeb meem ntawm lub caij ntuj no sib xyaw ua ke hloov pauv tau dhau los ua qhov tseem ceeb, xws liNY/PE boiled bagthiabNY/CPP retort hnabuas tawv thiab nkig; cov nplaum muaj tsawg pib tack; thiab qhov sib xyaw ua ke ntawm cov khoom Teeb meem xws li qhov sib txawv.
01 Cov nplaum muaj qis pib tack
Txij li qhov kub ntawm ntau qhov chaw tau txias,Qee cov neeg siv khoom tau tshaj tawm tias qhov kev sib txuas ntawm lub zog ntawm qhov kub thiab txias ua kua nplaum UF-818A / UK-5000 tau poob qis thaum ua cov qauv PET / AL / RCPP, uas txhais tau hais tias lub zog ntawm txheej txheej yog zoo, tab sis lub zog ntawm lub txheej sab hauv yog tsawg heev. Tab sis tom qab muab tso rau hauv chav laus rau kaum feeb, nws tam sim ntawd tau txais lub zog zoo. Cov neeg siv khoom tau siv cov khoom no ntau tshaj li ib nrab xyoo thiab nws tau ruaj khov heev, thiab cov txheej txheem sib xyaw tam sim no tsis tau hloov pauv ntawm qhov qub.
Tom qab kev tshuaj xyuas ntawm qhov chaw, nws tau pom tias cov khoom siv nruj yog qhov qub thiab cov kua nplaum siv tau mus txog 3.7 ~ 3.8g / m2, thiab tsis muaj teeb meem. Txawm li cas los xij, thaum lub tshuab winding tuaj rau hauv kev sib cuag nrog cov yeeb yaj kiab, nws tau pom tias cov yeeb yaj kiab tsis sov, thiab txawm tias txias. Saib ntawm qhov kev teeb tsa ntawm cov khoom siv sib xyaw ua ke, qhov sib xyaw cov menyuam kub yog 50 ° C thiab qhov sib xyaw siab yog 0.3MPa. Tom qab lublaminating rau cov menyuam kub tau nce mus rau 70 ° C thiab lub laminating siab tau nce mus rau 0.4Mpa, qhov pib lub zog sib txuas tau zoo dua qub, thiab cov duab sib xyaw kuj tau txhim kho.
Cov neeg siv khoom pom nws coj txawv txawv: ob qhov tsis sib xws ntawm laminating roller kub 50 ℃ thiab laminating siab 0.3Mpa tau siv ua ntej, thiab tsis muaj qhov xwm txheej zoo li no tau tshwm sim. Vim li cas peb thiaj yuav tsum hloov tam sim no?
Cia peb pib nrog kev tsom xam ntawm kev sib xyaw siab: Thaum lub sij hawm cov txheej txheem lamination qhuav, lub siab sib xyaw ntawm txhua lub chaw tsim khoom cov txheej txheem thiab cov tshuab lamination qhuav tau qhia hauv bar lossis MPa, feem ntau 3bar lossis 0.3 ~ 0.6MPa. Tus nqi no yeej zoo ib yam li Lub siab ntawm lub tog raj kheej txuas nrog cov menyuam roj hmab. Qhov tseeb, lub siab sib xyaw yuav tsum yog lub siab ntawm cov khoom siv ntawm cov khoom siv siab sib xyaw thiab cov hlau sib xyaw ua ke. Tus nqi siab no yuav tsum yog kgf / m lossis kgf / cm, uas yog, lub siab ntawm chav tsev ntev. Ntawd yog, F = 2K * P * S / L (K yog tus proportional coefficient, uas muaj feem xyuam rau lub tog raj kheej siab txoj kev. Lub siab ncaj hom yog 1, thiab qib qib siab tshaj 1, uas yog hais txog qhov ratio. ntawm lub zog ntawm caj npab thiab caj npab tsis kam; P yog lub tog raj kheej siab; Vim hais tias lub tog raj kheej qhov ntau thiab tsawg ntawm cov tshuab sib txawv yog qhov sib txawv thiab cov txheej txheem kev siv lub siab sib txawv, thaum cov txiaj ntsig tau tshwm sim ntawm qhov ntsuas siab ntawm cov tshuab sib txawv yog tib yam, qhov tseeb ntawm qhov kev sib tw tsis tas yuav tsum yog tib yam.
Cia peb saib ntawm lub lamination kub: Hauv cov lamination qhuav, tom qab cov nplaum tawm ntawm qhov ziab ziab, cov kuab tshuaj tau pib evaporated, tsuas yog cov kua nplaum qhuav. Qhov no yog vim qhov qhuav rov siv polyurethane nplaum yuav poob nws cov viscosity ntawm chav tsev kub tom qab ziab.Txhawm rau kom ob lub substrates kom haum ua ke zoo, cov nplaum yuav tsum qhib nws cov nplaum. Yog li ntawd, thaum laminating, lub laminating cov menyuam yuav tsum tau rhuab kom nws nto qhov kub thiab txias tuaj yeem ua rau cov nplaum los ua kom muaj viscosity.
Tom qab nkag mus rau lub Kaum Ib Hlis, qhov kub thiab txias tau poob qis hauv qee thaj chaw. Thaum lub Kaum Ib Hlis Ntuj, qhov kub ntawm qee thaj chaw tsuas yog nyob ib ncig ntawm 10 ° C. Thaum cov neeg siv khoom sib xyaw RCPP, cov khoom siv raw yog rub ncaj qha los ntawm lub tsev rau khoom mus rau qhov chaw tsim khoom rau kev tsim khoom. Lub sijhawm no, qhov kub ntawm RCPP yog qhov qis heev. Ua ke nrog qhov kub tsis tshua muaj lamination, zaj duab xis yog rhuab rau ib lub sij hawm luv luv thaum lub sij hawm lamination, thiab tag nrho cov kub ntawm cov zaj duab xis composite yog tsawg heev. Tus txheeb ze molecular hnyav ntawm high-temperature ua kua nplaum yog qhov loj thiab yuav tsum tau rhuab los txhawb cov kev ua ntawm cov nplaum. Yog tias qhov kub thiab txias qis dhau lawm, qhov kev sib txuas pib lub zog yuav raug txo kom tsawg. Tom qab muab tso rau hauv qhov chaw kho mob, cov kev ua ntawm cov nplaum yog stimulated thiab lub zog tuaj yeem nce tam sim ntawd.
Yog li, thaum peb nce qhov kub thiab txias sib xyaw ua ke, qhov teeb meem no tau daws.
Lwm qhov teeb meem uas yuav raug ntsib thaum cov yeeb yaj kiab kub qis yog vim qhov kub ntawm qhov sib txawv ntawm sab hauv thiab sab nraud ntawm lub rhiav yog qhov loj, thiab lub rhiav luam ntawv yog humidifying, thaum cov zaj duab xis unrolled, dej vapor condenses, thiab nto. ntawm cov yeeb yaj kiab yuav muaj kev xav noo, uas yuav cuam tshuam rau cov tsos ntawm cov khoom tom qab kev laus. thiab kev siv zog ua rau muaj kev phom sij loj. Tsis tas li ntawd, vim qhov tsis zoo ntawm qhov tsis zoo los ntawm qhov kub thiab txias thaum siv cov nplaum, cov teeb meem zoo sib xws kuj tshwm sim ib ntus.
Kev tiv thaiv:Thaum lub caij ntuj no, cov khoom siv raw thiab cov nplaum yuav tsum tau muab tso rau hauv qhov chaw ua haujlwm 24 teev ua ntej ntau li ntau tau. Cov neeg siv khoom nrog cov xwm txheej tuaj yeem tsim lub tsev cog khoom ua ntej. Ua kom qhov kub thiab txias ntawm cov menyuam lamination kom paub meej tias cov yeeb yaj kiab yog "sov" tom qab lamination thiab winding.
02 Lub hnab retort yog tawv thiab nkig
Nrog rau lub caij ntuj no tuaj txog, NY / PE cov hnab ntim thiab NY / CPP retort hnab ua tawv thiab tawv. Qhov teeb meem tshwm sim yog tias lub hnab tawg tus nqi nce. Qhov no tau dhau los ua qhov teeb meem ntev hauv tag nrho kev lag luam. Ntau lub lag luam ntim loj loj kuj muaj teeb meem los ntawm qhov teeb meem no thiab tab tom nrhiav kev daws teeb meem.
NY / CPP kub resistant retort hnab feem ntau xa mus rau cov hnab ntim khoom uas tuaj yeem ua kom tsis muaj menyuam ntawm 121 ° C rau ntau tshaj 30 feeb. Hom ntim no muaj cov pob tshab zoo, lub zog siab, thiab siv dav. Lub hnab NY / PE feem ntau yog siv rau lub hnab ntim thiab lub tshuab nqus tsev vim lawv lub zog siab thiab zoo toughness.Txawm li cas los xij, cov hnab ntim khoom zoo li no nrog olefin raws li cov txheej txheem sealing sab hauv ib txwm ntsib ob qhov teeb meem loj: ua ntej, thaum lub caij ntuj no txias, lub nkig ntawm lub hnab nce, thiab lub hnab tawg tau nce; thib ob, tom qab ua noj los yog boiling, lub hnab yuav nyuaj thiab brittleness nce.
Feem ntau hais lus, cov khoom hauv txheej txheej ntawm cov hnab ntim khoom kub yog feem ntau RCPP. Qhov zoo tshaj plaws ntawm RCPP yog tias nws muaj qhov pom tseeb zoo thiab tuaj yeem tiv taus qhov kub thiab txias siab tshaj 121 ° C. Qhov tsis zoo yog tias nws yog ib qho nyuaj thiab nkig ntau dua li lwm cov ntaub ntawv kub sealing txheej. Qhov no yog qhov tseeb tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias.RCPP muab faib rau hauv domestic thiab txawv teb chaws. Nws tau nkag siab tias cov khoom siv hauv tsev feem ntau yog homopolymerized, thiab tau kawg qee lub tuam txhab tau koom nrog kev hloov kho RCPP. Ntshuam RCPP feem ntau yog thaiv-raws li, thiab qhov kub-kub tsis kam ntawm homopolymer yog qhov phem tshaj qhov thaiv. Homopolymer RCPP yuav raug denatured tom qab high-temperature sterilization, uas yog, RCPP yuav nyuaj thiab nkig, thaum thaiv RCPP tseem tuaj yeem khaws cia ua ntej kom tsis muaj menyuam. ntawm softness.
Tam sim no, Nyiv yog nyob rau hauv pem hauv ntej ntawm lub ntiaj teb no txoj kev tshawb fawb ntawm polyolefins. Nyiv cov polyolefins kuj raug xa tawm mus rau thoob plaws ntiaj teb. Lub softness thiab tag nrho cov kev ua tau zoo ntawm nws NY / PE zaj duab xis thiab high-temperature ua noj RCPP zaj duab xis yog zoo heev.
Yog li, kuv tus kheej ntseeg tias cov ntaub ntawv polyolefin ua lub luag haujlwm tseem ceeb hauv qhov teeb meem ntawm hardness thiab brittleness ntawm NY / PE lub hnab ntim thiab NY / CPP retort hnab nyob rau lub caij ntuj no. Tsis tas li ntawd, ntxiv rau qhov cuam tshuam ntawm cov ntaub ntawv polyolefin, inks thiab composite adhesives kuj muaj qee yam cuam tshuam, thiab lawv yuav tsum tau sib koom ua ke kom thiaj li tsim tau cov khoom siv boiled thiab high-temperature hnab.
Lub caij ntuj no muaj ntau yam cuam tshuam rau extrusion lamination, uas qhov kev hloov ntawm huab cua sib txawv yog qhov tseem ceeb heev, thiab txhua tus neeg yuav tsum tau them sai sai rau nws.
Post lub sij hawm: Dec-09-2023
