Isondlo sokutya okusemathinini, ukhuseleko, ukulungeleka, kufuneka kube yeyona nto ifanelekileyo yokutya.Kodwa njengoko iinkonkxa zetoti bezigqunywe ngokupheleleyo kumashumi ambalwa eminyaka adlulileyo, iitoti zeglasi zakhethwa kwiibhotile zempumelelo zohlobo lwaseSuzhou, zisasaza umyalezo wokuba “itoti inencasa entle kwaye nomlomo kunzima ukuwuvula”.Ngumbuzo omkhulu lowo.Abathengi abalula ukutya, kunye nefuthe elibi kuphuhliso loshishino olusemathinini.Ngoku ukukhuthazwa okusebenzayo koshishino lokunkonkxa, iitoti ze-tinplate ezinesiciko esilula ukuvuleka, iitoti zeglasi ezinesiciko esingasikrolwanga.Ngaphezu kweminyaka elishumi edlulileyo, abantu abaninzi bakhetha ukusebenzisa iziciko ezilula, ezaziyitoti zesidudu esinobuncwane obusibhozo.Umzantsi wetoti wawufakwe inkonkxa.Izivalo ezilula zenziwe nge-aluminium alloy kwaye zifakwe ngecephe elincinci leplastiki.Ukutya kwakulula kakhulu kwaye abathengi baziva banelisekile kakhulu, ngoku, umthamo wokuthengisa wonyaka wepudding yerayisi enkonkxiweyo malunga neetoni ezingama-300,000.
Nangona kunjalo, ayizizo zonke iintlobo zokutya okunkonkxiweyo ezinokuthi zikhethwe i-babao porridgeingqayi yokutya yeplastiki enesiciko esivuleke lula.Kwiminyaka embalwa edlulileyo, umzi-mveliso wokutya okunkonkxiweyo eGuangdong uvelise iitoti zejusi yetumato.Iingqayi zenziwe ngentsimbi ekhonkxiweyo kunye ne-aluminium alloy eneziciko ezilula ukudonsa, kwaye iziqulatho ziqulethe i-0.5% ye-sodium chloride (NaCl) .Umxholo we-chlorine ubalwa ukuba ube ngu-303 mg / kg, emva kweenyanga eziliqela zokugcina, ukuveliswa kwanyanzeleka ukuba kuyeke ngenxa yokuvuza kwamatanki kwi-rivet kunye nomgca wezivalo ezilula.
I-tinplate isetyenziswa emazantsi etoti yomzimba.Ukuba isiciko setoti senziwe nge-aluminium alloy, i-micro-battery yenziwa emva kokuba ukutya kufakwe kwitoti, kwaye i-bimetallic reaction iyenzeka.I-aluminiyam yi-anode kunye ne-tin yi-cathode.Xa indawo ye-cathode inkulu kunommandla we-anode, inxalenye ye-anode yokuhlaselwa kwe-pitting deep, de kube yi-perforation.Kwiminyaka embalwa edlulileyo, isiselo esidumileyo sekhokhonathi eTaiwan senziwe nge-alloy ye-aluminium enekhava evulekileyo kunye ne-tinplate ezantsi kwetoti.Ukuxinwa kwe-chloride ion kwimixholo kufikelele kwi-440 ~ 1492 mg / kg, Ph = 4.4 ~ 4.6, ngokukodwa i-malic acid.Kwinqanaba lokuqala le-Canning, amacandelo e-corrosion (i-malic acid, i-chloride ion) ihlutha ifilimu yokugubungela kwaye iqhube i-electrochemical reaction.Okwangoku, ifilimu yokugquma i-cathode, ifilimu yokugubungela ibonakaliswe yifilimu eveziweyo ye-tin, intsimbi ye-anode, de kube yindawo efanelekileyo ye-tin, isinyithi evezwe, kunye ne-aluminium kulula ukuyikhupha ngenxa yomonakalo wentambo ye-aluminium. kunye ukwenza i-micro-ibhetri, ngenxa yempendulo ye-bimetallic.Okwangoku, i-aluminiyam ye-anodic attack corrosion dissolution, idibene nobukho be-ion ye-chloride kumxholo, ikhuthaza impendulo ye-corrosion ukukhawulezisa ukuphuhliswa kwe-aluminiyam i-alloy ye-aluminiyam yokutsalwa ngokulula kwe-rivet, ukubhoboza umgca.
Kubikwa ukuba ukutya okune-asidi ephezulu kuqulethe i-chloride ion ezingaphezu kwe-100mg / kg, kubandakanywa inyama enkonkxiweyo, inkukhu kunye nemifuno yasemanzini (ngenxa yokuthatha inxaxheba kwityuwa okanye i-sodium chloride) , i-tinplate isetyenziselwa ezantsi komzimba wetoti. kunye ne-aluminium ialloy ayifanelekanga kwi-cover ye-can, i-tinplate kufuneka isetyenziswe ngokulula ukutsala isiciko, ukuphepha ukwenzeka kwe-bimetallic electrochemical reaction kunye nokugqobhoza.
Ixesha lokuposa: May-10-2022