Thaum cov yeeb yaj kiab ncab muaj qhov pom yooj yim, ua tiav qhov ruaj khov, cov khoom siv -txuag, thiab ntim tau zoo yuav tsum tau ua ntau yam kev siv tswv yim. Cov tswv yim no, muab los ntawm kev soj ntsuam thiab rov ua dua nyob rau hauv ntau yam kev ua haujlwm, tso cai rau cov neeg ua haujlwm kom muaj kev tiv thaiv zoo thaum txo cov khoom siv thiab cov nqi sij hawm thaum lub sij hawm qhwv.
Ua ntej-kev kho mob ua ntej qhwv yog thawj txheej txheem tseem ceeb. Ua kom lub ntsej muag ntawm cov khoom ntim tau huv si thiab qhuav tiv thaiv plua plav lossis roj stains los ntawm kev ua kom tsis muaj zog ntawm zaj duab xis adhesion thiab tus kheej -adhesion. Txhawm rau kom yooj yim nplua los yog tsis zoo li cov khoom, ntxiv dag zog rau cov npoo nrog lub kaum tiv thaiv los yog cov duab los qhia kom tsis txhob punctures los ntawm cov ntsiab lus ntse nyob rau hauv kev ntxhov siab thiab xyuas kom meej ntau txawm tias qhwv.
Hais txog kev tuav thiab quab yuam, tes- qhwv yuav tsum tau tuav ruaj khov thiab txawm tuav. Thaum tshem cov yeeb yaj kiab, tawm qhov ntev kom tsim nyog los kho qhov pib taw tes, thiab siv lub dab teg lub zog kom tso cai rau cov yeeb yaj kiab kom ncab ib txwm. Tsis txhob maj nrawm uas tuaj yeem ua rau tawg. Kev paub qhia tau hais tias kev siv cov kauv sab saud, txheej - los ntawm - txheej txheej, nrog me ntsis nce cov txheej ntawm cov ces kaum thiab protrusions, tuaj yeem faib kev ntxhov siab thiab tiv thaiv kev tsim kua muag hauv zos. Khaws ua pa tsis tu ncua thiab ua kom lub zog sib npaug thaum lub sij hawm winding kom ntseeg tau tias txawm tias cov yeeb yaj kiab nruj thiab ua kom zoo nkauj dua thiab ruaj ntseg qhwv.
Kho qhov ntsuas rau lub tshuab winding yog lwm yam txuj ci tseem ceeb. Teem lub pre-stretch ratio raws li qhov hnyav thiab cov duab ntawm cov khoom- nce qhov stretch ratio rau lub teeb loads kom txuag tau cov khoom, thaum txo qhov stretch ratio thiab nce tus naj npawb ntawm wrapping lem rau hnyav loads kom ruaj khov. Lub winding ceev kuj yuav tsum tau txuam nrog cov zaj duab xis carriage lifting zaus; ceev heev tuaj yeem ua rau cov yeeb yaj kiab xoob, thaum qeeb qeeb txo cov haujlwm. Rau cov khoom ntawm qhov sib txawv qhov siab, segmented winding txoj kev yuav siv tau, nrog denser wrapping nyob rau hauv qis qis ua raws li los ntawm looser wrapping nyob rau theem siab dua, ntsuas stability thiab cov khoom txuag.
Kev tswj tus nqi sib tshooj ncaj qha cuam tshuam rau kev sib khi thiab kev lag luam ntawm cov ntaub qhwv. Kev sib tshooj ntawm ib ncig ntawm 50% yog qhov zoo tagnrho hauv cov xwm txheej feem ntau, kaw cov yeeb yaj kiab qis dua yam tsis muaj kev rov ua dua uas ua rau cov khoom siv ntau ntxiv. Hauv kev ua haujlwm ntawm lub tshuab, qhov ua ntej-stretch muaj peev xwm siv tau los ua kom cov yeeb yaj kiab ncua deb, thiab tus naj npawb ntawm cov lem tuaj yeem ua tau zoo -tuned raws li qhov xav tau tiag tiag, ua tiav kev ntseeg siab thiab kev lag luam.
Kev siv cov txheej txheem rau cov xwm txheej tshwj xeeb yog qhov tseem ceeb sib npaug. Rau cov khoom uas xav tau kev tiv thaiv cov dej noo siab, cov dej noo - cov ntaub ntawv pov thawj tuaj yeem muab tso ua ntej ua ntej muab khi nrog zaj duab xis. Rau kev tiv thaiv - cov khoom zoo li qub, siv cov yeeb yaj kiab los tiv thaiv - zoo li qub thiab ua kom lub wrapping ceev kom txo tau cov hluav taws xob zoo li qub. Rau kev tiv thaiv sab nraum zoov ib ntus, siv UV- cov yeeb yaj kiab tiv thaiv nrog kev sib tshooj ntxiv tuaj yeem ua rau huab cua tiv thaiv. Nyob rau theem kawg, xyuas kom cov zaj duab xis xaus yog nruj nreem kaw los yog nias, thiab siv daim kab xev los yog kub sealing yog tias tsim nyog los tiv thaiv kom tsis txhob xoob thaum thauj.
Thaum kawg, txhim kho tus cwj pwm ntawm kev tshuaj xyuas yog ib qho txuj ci tseem ceeb thoob plaws hauv tag nrho cov txheej txheem. Tom qab qhwv, tshuaj xyuas cov zaj duab xis saum npoo rau flatness, warping, los yog puas, thiab tam sim ntawd kho cov ntsiab lus tsis muaj zog kom txo tau rework thiab cargo puas.
Stretch film techniques encompass pretreatment, force application method, equipment parameters, overlap control, scenario adaptation, thiab zaum kawg soj ntsuam. Kev sib koom ua ke cov ntsiab lus no rau hauv kev ua haujlwm yuav ua rau txhua qhov txheej txheem wrapping txhawj xeeb -dawb thiab ua haujlwm tau zoo, ua kom muaj txiaj ntsig zoo ntawm cov khoom siv hloov pauv no.
