Ntinye ihe mgbochi nke ọgwụ ọgwụ na-egbochi ọgwụ
Iguzosi ike n'ezi ihe nke nkwakọ ngwaahịa nchịkọta na-adabere na arụmọrụ nke Aluminium mgbochi foil, nke na-arụ ọrụ dị ka usoro nchekwa mbu megide mmebi iwu gburugburu ebe obibi maka ihe ndị na-emepụta ọgwụ (Apis). Nyocha a na-akọwapụta ihe ndị a chọrọ ma na-akọwapụta ihe mgbochi dị elu nke ihe mgbochi aluminom mejupụtara megide ihe egwu dị egwu nke mmiri na ikuku oxygen..
1. Ọrụ Dị Mkpa nke Ihe mgbochi
Idokwa nkwụsi ike kemịkalụ na nrụpụta ọgwụgwọ nke ụdị usoro onunu siri ike dị mkpa na nrụpụta ọgwụ..
API na-enwekarị ike ịnweta ụzọ mmebi, gụnyere hydrolysis (mmiri na-edu) na oxidation (ikuku oxygen).
Mmeghachi omume ndị a na-ekwe nkwapụta ihe nkwakọ ngwaahịa na-enye ndị na-enye ndị na-adịghị mma n'anya, Achoro nke oma site na aluminom.
2. NKWUPUTA EGO
A na-ejikọkarị ahịhịa na-emepụta ọgwụ na-emepụta ihe mgbochi nke ọla kọnta.
2.1 Isi ihe na-adịghị ike
Isi nke mejupụtara bụ oyi akwa aluminom, na-abụkarị site na 20 $\mu $ m ka 50 $\mu $ m na ọkpụrụkpụ.
Ihe okirikiri aluminom, na-abụghị pọọsụ anụ ahụ na-abụghị nke na-egbochi ihe gas na mmiri vepo.
Oyi akwa a bụ ihe dị mkpa maka ndị dị eluAluminium mgbochi foilarụmọrụ.
2.2 Ọrịa polymiral arụrụala
A na-akwalite core aluminom n'etiti, Nke ọ bụla na-eje ozi otu ebumnuche.
Akwa akwa (E.G., OPA ma ọ bụ anụ ụlọ) na-enye ike na iguzogide na-emegide m.
Akwa oyi akwa, mgbe mgbe, akara mkpuchi lacquer (Hadi) ma ọ bụ polymer dị ka PVC, na-eme ka o sie ike, akara na-ekpo ọkụ dị ala na webụ isi ala ọnya.
3. Arụmọrụ Oxygen Barrier (OVP)
Mmebi oxidative nwere ike ibelata ike API ngwa ngwa wee mepụta ngwaahịa sitere na achọghị.
Ọnụego nnyefe oxygen (Otr), tụrụ na $text{cc}/(\ederede{m}^2 cdot ederede{ụbọchị})$, bụ metric ọkọlọtọ maka OVP.
Nke emebibeghịAluminium mgbochi foilna-egosipụta OTR nke fọrọ nke nta ka ọ bụrụ efu, na-adakarị n'okpuru oke nchọpụta nke akụrụngwa nnwale ọkọlọtọ (E.G., Ngwa MOCON).
Ihe dị mkpa dị na IVP bụ ọnụnọ nke pinholes ma ọ bụ micro-cracks, nke a ga-ewebata n'oge a na-atụgharị ma ọ bụ usoro lamination.
Okpokoro 1: Ọnụ ego eyịkọ (Otr) nke ngwugwu ngwugwu
| Ụdị ihe | Ọkpụrụkpụ ($\mu $ m) | Ọnọdụ nnwale | Otr ($\ederede{cc}/(\ederede{m}^2 cdot ederede{ụbọchị})$) | Clonerification |
| Ọkọlọtọ PVC | 250 | $23^ ederede{C}$, 0% 'Ny | 10 - 15 | Kediala |
| PVDC Coated PVC | 250 | $23^ ederede{C}$, 0% 'Ny | 0.1 - 1.0 | Ọkara-elu |
| Mejuo aluminom | 25 (Al oyi akwa) | $23^ ederede{C}$, 0% 'Ny | $< 0.005$ | Magburu onwe |
| Formdị oyi (Alu-aghu) | 45 (Al oyi akwa) | $23^ ederede{C}$, 0% 'Ny | $< 0.001$ | Nke ka |
4. Mmiri Briver arụmọrụ (Mvp)
Mmiri vepo (Wvr), tụrụ na $text{g}/(\ederede{m}^2 cdot ederede{ụbọchị})$, na-abụkarị oke oke dị oke mkpa maka ịdọ aka ike ọgwụ.
Aluminom oyi na-elekwasị anya na oke WvTr ụkpụrụ, imeAluminium mgbochi foildị mkpa maka API hygroscopic.
4.1 Sistemụ Alu-Alu
Maka ọgwụ na-enwe mmetụta dị oke mmiri (E.G., API Klas I), Sistemụ ọnya Alu-Alu na-enye nchebe kachasị.
Sistemu a na-eji foil aluminom mejupụtara ma mkpuchi na ebe nrụọrụ weebụ (Formdị oyi, CFF).
Usoro CFF na-achọ njikwa ziri ezi iji gbochie nhụsianya na-akpata micro-fractures na okeAluminium mgbochi foiln'oge oghere oghere.
Okpokoro 2: Arụmọrụ WVTR na dabara adaba maka ụdị ọgwụgwọ siri ike
| Klas Mmetụta API | WVTR achọrọ ($\ederede{g}/(\ederede{m}^2 cdot ederede{ụbọchị})$) | Ngwọta nkwakọ ngwaahịa a na-ahụkarị | Usoro ihe mgbochi isi |
| Klas I (Nnukwu Mmetụta) | $< 0.05$ | Formdị oyi (Alu-aghu) | Ike dị nso-efu nke Al |
| Klas II (Na-enwechaghị mmetụta) | $0.05 - 0.5$ | PVDC/PVC blister nwere mkpuchi aluminom | PVDC mkpuchi na Aluminom Akara |
| Klas III (Nke kacha nwee mmetụta) | $> 0.5$ | Ọkọlọtọ PVC / Aluminom Blister | Aluminom mkpuchi mkpuchi |
5. Nnwale ịdị mma na iguzosi ike n'ezi ihe
Iji hụ na nrụpụta ihe mgbochi na-adịgide adịgide, njikwa mma siri ike dị mkpa n'oge usoro nkwakọ ngwaahịa niile.
Nnwale nbibi (OTR na WVTR) na-enyocha njirimara dị n'ime ụlọ ahụAluminium mgbochi foilihe.
Mbupu nkwakọ ngwaahịa Nnwale dị mkpa iji gosipụta iguzosi ike n'ezi ihe nke akara nke ikpeazụ, nke bụ ihe kachasị na-ahụkarị nke ọdịda.
Ụzọ dị ka wheveration, vakum na-ere ere, na nchọpụta na-ahụ anya (HVDLD) A na-ejikwa iguzosi ike n'ezi ihe.
A na-arụ ọrụ microscopical na electromical na electropical na-arụ ọrụ iji chọpụta ma kọwaa pinholes, nke mebiri ọrụ mgbochi nkeAluminium mgbochi foil.
Mmechi
Compalite aluminom na-anọchi anya ọkọlọtọ ọla edo maka ị nweta nchebe na-egbochi gị na nkwakọ ngwaahịa ọgwụ. Ihe eji eme nhazi ha na-elekwasị anya na-eru nso-efu kenkwucha na oxygen na mmiri, na-echedo nkwụsi ike nke APIS. Arụmọrụ mgbochi ya bụ na-emetụta ogo nkeAluminium mgbochi foil ihe na nkenke nke usoro ikpeazụ, Gbara mkpanaka na-aga n'ihu na ụkpụrụ dị mma.