Nyob rau hauv lub ntiaj teb loj thiab nyuaj ntawm cov yeeb yaj kiab yas, ob qhov loj "sects" tau ntev los ntawm kev tawm tsam: qhov siabTshuab zaj duab xisthiab qhov ncajCast Film.
Ntau tus neeg tuaj tshiab rau hauv kev lag luam, thiab txawm tias qee cov tub rog caij tsheb thauj mus los, feem ntau zoo li xav tsis thoob thaum ntsib nrog ob nqe lus no:
"Vim li cas CPP tsuas tuaj yeem raug pov, tsis tshuab?"
"Vim li cas cov yeeb yaj kiab ncab feem ntau yog nrum, thaum lub hnab khw muag khoom txhua qhov tshuab?"
"Qhov txheej txheem twg ua tau zoo dua zaj duab xis?"
Niaj hnub no, peb tab tom yuav coj tus kws tshaj lij dhia dej. Los ntawm cov txheej txheem txheej txheem thiab kev ua tau zoo sib txawv rau daim ntawv thov kev lag luam thiab qhov pitfalls, peb tab tom yuav tso ob txoj haujlwm tseem ceeb no kom pom qhov twg yog qhov haum rau koj.
Tshooj 1: Txheej Txheem Tshaj Tawm - Nws "Yug" li cas?
Yuav kom nkag siab yog tias ib zaj duab xis zoo, koj yuav tsum xub saib seb nws ua li cas. Qhov sib txawv tseem ceeb ntawm ob txoj kev no yog nyob rau hauv lawv txoj kev molding thiab txias.
1. Tshuab zaj duab xis: Zoo li tshuab npuas
Cov txheej txheem cua tshuab yog zoo li tshuab lub zais pa loj.
Txheej txheem:Tom qab cov yas pellets yog melted, lawv yog extruded los ntawm ib tug annular tuag los ua ib lub raj. Compressed cua yog ces tshuab mus rau hauv lub raj, inflating nws mus rau hauv ib tug loj cylindrical "npuas."
Cua txias:Kev ua kom txias yog ua tiav los ntawm ib puag ncig huab cua ntws (cua nplhaib).
Haul- tawm:Cov npuas nce siab, dhau los ntawm folding daim hlau kom flattened, thiab thaum kawg raug mob.
Ntsiab lus:Annular tuag, cua txias, biaxial orientation (machine kev taw qhia traction + transverse tshuab).
2. Cast Film: Zoo li dej tsaws tsag
Cov txheej txheem cam khwb cia yog zoo li ib tug dej tsaws tsag cascading saum ntuj.
Txheej txheem:Cov yas molten ntws tawm ntawm lub tiaj tus T-zoo li tus tuag (slit tuag) zoo li daim ntaub, ntog vertically.
Cool hauv:Nws instantly hu rau ib tug loj, rotating txias yob, sai txias thiab solidifying ntawm lub txias hlau nto.
Haul- tawm:Tom qab txias, zaj duab xis yog trimmed, ntsuas rau thickness, thiab qhov txhab.
Ntsiab lus:T-tuag, txias yob hu rau txias, feem ntau uniaxial orientation.
Tshooj 2: Kev Ua Haujlwm Lub ntsej muag- Tawm - Qhov txawv loj npaum li cas?
Vim lawv qhov txawv "yug ib puag ncig," "tus kheej" (kev ua yeeb yam) ntawm ob zaj yeeb yaj kiab no txawv heev. Cia peb sib piv lawv hla ntau qhov ntev:
1. Optical Properties (Clarity & Gloss)
Cast Film👑 Yeej
Txoj Cai:Cov cam khwb cia zaj duab xis siv ceev txias (quenching). Qhov no inhibits crystallization ntawm polymer. Qhov tshwm sim micro- crystals yog me me, ua rau lub teeb tawg tsawg heev.
Kev ua tau zoo:Tsis tshua muaj siab transparency, qis haze, thiab siab gloss. CPP cam khwb cia zaj duab xis zoo li crystal ntshiab.
Tshuab zaj duab xis
Txoj Cai:Cua txias kuj qeeb, tso cai rau cov polymer txaus sijhawm rau crystallize. Cov crystals uas tshwm sim yog loj dua, yooj yim ua rau lub teeb tawg.
Kev ua tau zoo:Cov huab cua siab dua, feem ntau qis dua pob tshab (txawm hais tias cov dej nrawm niaj hnub no -cua tshuab cua txias tshuab tau txhim kho qhov no, nws tseem qeeb tom qab casting).
2. Mechanical Strength (Tensile & Tear Resistance)
Tshuab zaj duab xis👑 Winner (Ntau Balanced)
Txoj Cai:Thaum lub tshuab tshuab, zaj duab xis yog ncab ob qho tib si longitudinally (traction) thiab transversely ( tshuab).
Kev ua tau zoo:Lub zog nyob rau hauv lub tshuab thiab transverse cov lus qhia yog sib npaug. Nws yog tawv thiab muaj zoo heev puncture kuj. Qhov no yog vim li cas cov khw muag khoom loj siv tshuab cua tshuab rau cov hnab yuav khoom- lawv tsis tawg yooj yim thaum tuav cov khoom hnyav.
Cast Film (Muaj qhov tsis muaj zog)
Txoj Cai:Nws yog feem ntau stretched nyob rau hauv lub longitudinal kev taw qhia, uas yuav luag tsis muaj transverse stretching.
Kev ua tau zoo:Cov txheej txheem molecular yog qhov taw qhia heev. Thaum lub zog tensile longitudinal tau txais, lub transverse kua muag kuj tsis zoo. Thaum muaj ib tug me me nick, nws kua muag tau yooj yim nyob rau hauv ib txoj kab ncaj nraim (xav txog daim kab xev pob tshab).
3. Thickness Uniformity
Cast Film👑 Yeej
Cov ntaub ntawv:Lub thickness kam rau ua ntawm cam khwb cia zaj duab xis tuaj yeem tswj tau li ntawm ± 1.5% ~ 3%.
Qhov zoo:Nws yog qhov tiaj tus heev, ua rau nws zoo tagnrho rau siab - ceev luam ntawv thiab txheej txheej.
Tshuab zaj duab xis
Cov ntaub ntawv:Thickness kam rau ua feem ntau yog nyob ib ncig ntawm ± 5% ~ 10% (txawm tias muaj kev sib hloov tuag).
Qhov tsis zoo:Cov thickness tsis sib xws tuaj yeem ua rau "cov qhab nia" thaum lub sij hawm winding, cuam tshuam qhov zoo ntawm cov lamination tom qab.
4. Cov cuab yeej cuab tam
Tshuab zaj duab xis👑 Qhov zoo tshaj plawsBlown zaj duab xis ua kom yooj yim rau kev sib koom ua ke siab -cov ntaub ntawv thaiv xws li PA thiab EVOH ntawm ntau- txheej co-extrusion (xws li 5, 7, lossis 9 txheej). Tsis tas li ntawd, cov cuab yeej siv tus nqi qis dua li ntawm cov yeeb yaj kiab cam khwb cia, muab cov qauv tsim qauv yooj yim dua.
Tshooj 3: Leej Twg Tswj Ib Cheeb Tsam? (Application Fields)
Raws li kev sib txawv ntawm kev ua tau zoo, ob qho tib si muaj qhov sib txawv ruaj khov:
🎬 Cast Film's Turf:
CPP (Cast Polypropylene):Cov cua sov sab hauv- txheej foob rau ntim khoom noj (piv txwv li, hnab biscuit, hnab khob cij), xav tau siab pob tshab thiab nruj.
Stretch Zaj duab xis:Zaj duab xis siv rau pallet wrapping hauv logistics. Nws siv qhov siab -ceev tsim muaj peev xwm ntawm cov kab nrum (muaj peev xwm tshaj 500m / min).
Cov khoom siv tu cev:Cov ntaub qhwv ntaub qhwv ntaub, ntim cov ntaub so ntswg huv, nrhiav qhov muag muag (CPE).
Metallizing Substrate:Qhov twg yuav tsum tau flatness heev, cam khwb cia zaj duab xis yog thawj xaiv.
🎈 Blown Film's Turf:
General Ntim:Lub hnab ntim khoom, T- lub hnab tsho, hnab khib nyiab (feem ntau yog PE), yuav tsum muaj qhov tawv zoo thiab tus nqi qis.
Agricultural Zaj duab xis:Mulch zaj duab xis thiab tsev xog paj zaj duab xis. Blown zaj duab xis tuaj yeem ua tiav ultra- dav dav (folded txoj kab uas hla tuaj yeem ncav cuag ob peb meters).
Hnyav -Lub luag haujlwm ntim:Fertilizer hnab, hnab nplej (FFS), yuav tsum muaj kev cuam tshuam loj heev thiab puncture kuj.
Thaum tshav kub kub Shrink zaj duab xis:Siv lub cim xeeb nyhuv ntawm biaxial orientation, nws shrinks los qhwv cov khoom thaum rhuab.
Tshooj 4: Phau Ntawv Qhia Kev Xaiv thiab Pitfall Avoidance Guide
Thaum koj xav tau tsim cov ntim tshiab, koj puas yuav tsum xaiv cam khwb cia lossis tshuab? Thov xa mus rau cov ntoo txiav txim hauv qab no:
1. Saib vs. Durability?
Yog tias koj cov khoom lag luam yog rau cov zaub (piv txwv li, paj, siab-kawg textiles, lub qhov rais ci ci) thiab xav tau kom pom tseeb thiab ci ntsa iab, xaivNtxig.
Yog tias koj cov khoom hnyav thiab angular (piv txwv li, khov ribs, kho vajtse), thiab yuav tsum tau puncture resistance thiab anti-cov khoom tawg, xaivTshuab.
2. Saib ntawm Kev Ua Haujlwm Tom Qab
High -Speed Printing/Coating:Yog tias koj cov xovxwm luam ntawv nrawm heev lossis koj xav tau cov nplaum nplaum, lub thickness uniformity ntawm cam khwb cia zaj duab xis yuav ua rau koj cov txiaj ntsig zoo.
Hnab Ua & Sealing:Yog tias koj tab tom ua cov cua sov yooj yim- lub hnab ntim, qhov zoo. Txawm li cas los xij, yog tias nws cuam tshuam nrog lub hnab ntim cov duab, koj yuav tsum xav txog qhov pheej hmoo ntawm cov yeeb yaj kiab cam khwb cia yooj yim rau hauv txoj kev hloov pauv.
3. Kev txiav txim siab nqi
Casting:Cov cuab yeej siv nyiaj txiag siab thiab kev siv hluav taws xob siab, tab sis kev tsim khoom siab ceev, haum rau kev txiav txim loj -.
Tshuab:Cov khoom siv qis dua thiab cov kev hloov pauv hloov tau yooj yim, haum rau ntau- ntau yam, me me mus rau nruab nrab batch ntau lawm.
Cov ntsiab lus
Cam khwb cia zaj duab xis thiab tshuab tshuab tsis muaj qhov "zoo dua"; tsuas muaj "ntau dua."
Cast movieyog qhov ua kom zoo "gentleman"-paj, ci, ua haujlwm zoo, tab sis yooj yim me ntsis.
Tshuab zaj duab xisyog "tus neeg tawv tawv" - muaj zog, ruaj, ntau yam, tab sis ntxhib me ntsis.
Kev nkag siab txog lawv cov cwj pwm thiab cov yam ntxwv tso cai rau koj taug qab txoj hauv kev ntawm kev ntim khoom yooj yim, txuag nyiaj thaum ua tiav cov txiaj ntsig zoo.