Ucwecwe lwe-aluminium yokwelapha i-pinhole nokutholwa kwayo: I-aluminium yensimbi inesakhiwo sekristalu yensimbi eminyene kakhulu, futhi ucwecwe lwe-aluminium oluphelele ngokombono lungavimba ngokuphelele noma iyiphi igesi, umhwamuko wamanzi nokukhanya. Kodwa eqinisweni, ngenxa yethonya lezici eziningi ezifana nenqubo yokugoqa esetshenziswa ekukhiqizeni ucwecwe lwe-aluminium, izinga lamafutha aginqikayo, isimo sobuso bomqulu ogoqayo, ubuchwepheshe bokusebenza kwenqubo kanye nemvelo yendawo yokukhiqiza, amaphutha ahlukahlukene avela nakanjani kucwecwe lwe-aluminium, ikakhulukazi ucwecwe oluncane lwe-aluminium. Ama-Pinholes angenye yezinto ezibaluleke kakhulu.

Usayizi nenombolo yamaphinikhodi kungenye yamamethrikhi abalulekile okulinganisa izinga lekhwalithi yemikhiqizo ye-aluminium foil. Kungenxa yokuthi impela kunezimbobo zokungena komoya-mpilo kanye nomhwamuko wamanzi kucwecwe lwe-aluminium akuwona uziro..

Usayizi nenombolo ye-aluminium foil pinholes kunomthelela omkhulu ekumelaneni nomswakama, izakhiwo zesithiyo segesi kanye nezakhiwo ze-shading ezikhanyayo ze-aluminium foil nezinto zayo eziyinhlanganisela. izinga lezwe lami le-GB3198-1996 lenza izinhlinzeko ezilandelayo kumaphinifa: “Ingaphezulu le-aluminium foil livunyelwe ukuthi libe nezimbobo ezibonakala ngeso lenyama, kodwa imigodi yezikhonkwane ayiyikuminyene, futhi ububanzi bezimbobo zokuphonswa kwephepha le-aluminium yokwelapha ngeke libe likhulu kuno 0.3 mm, futhi ngeke yeqe 0.3 mm. 5 ama-pcs/m². Usayizi wephinifa lolunye ucwecwe lwe-aluminium oluhlanzekile lwezimboni akufanele ludlule 0.5 mm.

Ngoba amaphinikhodi ayinkomba ebalulekile yokuthola amafoyili e-aluminium, izinto eziningi zobuchwepheshe zakwamanye amazwe zibeka izimbobo zezingcwecwe ze-aluminium noma ukuhanjiswa komhwamuko wamanzi wamaphepheli e-aluminium.. Inhlangano YaseMelika Yokuhlola Nezinto Ezisetshenziswayo indinganiso ye-ASTMB-479-85 “Izinga Lobuchwepheshe Le-Aluminiyamu Eyi-Annealed Foil kanye ne-alloy Aluminium Foil Ye-Barrier Flexible Packaging” iyasho: “Akufanele kube nezimbobo eziningi kakhulu, kanye necwecwe le-aluminium enogqinsi olukhulu kuno 0.5 mm kufanele ingabi namaphinifa.” Japanese Industrial Standard JISZ1520 -1975 “Okujwayelekile kwe-Composite Aluminium Foil” inikeza idatha yokudluliswa komphunga wamanzi we-foil eyinhlanganisela ye-aluminium.

Okwamanje, kunegebe elikhulu phakathi kwezinga lekhwalithi yefoyili ye-aluminium yasekhaya kanye namazwe angaphandle, okubonakala kakhulu enanini nosayizi wemigodi yokukhonjwa. Ezinye izindinganiso zakwamanye amazwe zibeka ukuthi awekho amaphinifa lapho ubukhulu bephepha le-aluminium bukhulu kuno 0.025 mm, kuyilapho izindinganiso zasekhaya zithi ayikho imbobo yokukhonkotha lapho ugqinsi lwephepha le-aluminium likhulu kuno 0.05 mm. Okwezimbobo, izindinganiso zangaphandle zicacisa ukuthi izimbobo ezinkulu kune 0.1 mm azivunyelwe, kuyilapho izindinganiso zasekhaya zikhomba ukuthi ubukhulu bobukhulu bemigodi yemigodi bungafinyelelwa 0.5 mm.

Ukuthuthukisa ikhwalithi ye-aluminium foil kanye nokunciphisa inombolo kanye nobukhulu bemigodi yephinifa kucwecwe lwe-aluminium kuyizinkinga abakhiqizi basekhaya be-aluminium foil okudingeka bazixazulule ngokushesha.. I-HWPFP ibilokhu yenza umzamo owengeziwe kulesi sici ukuze iqinisekise ikhwalithi yocwecwe lwe-aluminium yokwelapha.

Ukuhlolwa kwedigri yephinikhodi ye-foil ye-aluminium yokwelapha eqediwe: Ithebula lokuhlola imbobo: sebenzisa ibhokisi lokhuni of 800 mm x 600 mm x 300 mm noma ivolumu efanelekile, faka isibani se-fluorescent esingu-30W ebhokisini lezinkuni, beka ipuleti lengilazi ebhokisini lamapulangwe, futhi ipuleti lengilazi lifakwe iphepha elimnyama bese Shiya isikhala esingu-400mm x 250mm ukuze sihlolwe izimbobo zesampula.. Thatha 20 amasampula anobude be 400 mm kanye nobubanzi be 250 mm kusuka kucwecwe oluqediwe lwe-aluminium, uwabeke phezu kwetafula lokuhlola imbobo ngayinye, futhi uhlole imigodi yabo ebumnyameni.

Izidingo zamaphinikhodi ukuthi akufanele kube nokuminyene, okuqhubekayo, ama-pinholes ngezikhathi ezithile, awekho amaphinifa anobubanzi obukhulu kuno 0.3 mm, futhi akukho ngaphezu 1 imbobo yesikwele ngemitha ngayinye enobubanzi be 0.1-0.3 mm .