Panopa luso mkhalidwe ndi msika chiyembekezo cha chakudya zitini ndi zosavuta lotseguka chivindikiro

Zakudya zam'chitini, chitetezo, zosavuta, ziyenera kukhala chakudya chosavuta kwambiri.Koma popeza zitini za malata zatsekedwa mokwanira m’zaka makumi angapo zapitazi, zitini zagalasi zinasankhidwa kuchokera m’mabotolo ochita bwino a Suzhou, kufalitsa uthenga wakuti “chitini chimakoma ndipo pakamwa ndizovuta kutsegula”.Ndilo funso lalikulu.Ogula si zophweka kudya, pamodzi ndi kukhudza kwambiri chitukuko cha zamzitini makampani.Tsopano yogwira Kukwezeleza makampani kumalongeza, zitini tinplate ndi zosavuta kutsegula chivindikiro, galasi zitini ndi unscrewed chivindikiro.Zaka zoposa khumi zapitazo, anthu ambiri anasankha kugwiritsa ntchito zivundikiro zosavuta, zomwe zinali zitini za phala lamtengo wapatali eyiti.M'munsi mwa chitinicho munali matalala.Zophimba zosavutazo zinali zopangidwa ndi aluminiyamu alloy ndipo zinkaphatikizidwa ndi kapu ya pulasitiki yaing'ono.Chakudyacho chinali chothandiza kwambiri ndipo ogula amamva kukhuta kwambiri, tsopano, kuchuluka kwa malonda a pachaka a pudding ya mpunga wamzitini ndi pafupifupi matani 300,000.

Komabe, simitundu yonse yazakudya zamzitini zomwe zitha kutsatiridwa ndi phala la babaomtsuko wa chakudya wa pulasitiki wokhala ndi chivindikiro chosavuta kutseguka.M'zaka zingapo zapitazi, fakitale yazakudya zamzitini ku Guangdong idapanga zitini zamadzimadzi a phwetekere.Zitinizo zidapangidwa ndi chitsulo chachitsulo ndi aloyi ya aluminiyamu yokhala ndi zotchingira zosavuta kukoka, ndipo zomwe zili mkati mwake munali 0.5% sodium chloride (NaCl) .Kuchuluka kwa klorini kunawerengedwa kuti ndi 303 mg / kg, pambuyo pa miyezi ingapo yosungirako, kupanga kunakakamizika kuimitsa chifukwa cha matanki othamanga pa rivet ndi mzere wa zivindikiro zosavuta.

Tinplate imagwiritsidwa ntchito pansi pa chitini.Ngati chivindikiro cha chitinicho chimapangidwa ndi aloyi ya aluminiyamu, batire yaying'ono imapangidwa pambuyo pa chakudya cham'chitini, ndipo bimetallic reaction imachitika.Aluminium ndi anode ndipo malata ndi cathode.Pamene cathode m'dera lalikulu kuposa anode m'dera, anode mbali ya kuukira kwambiri dzenje, mpaka perforation.Zaka zingapo zapitazo, chitini chodziwika bwino cha kokonati ku Taiwan chinali chopangidwa ndi aluminum alloy yokhala ndi chivundikiro chosavuta chotsegula ndi tinplate pansi pa chitini.The ndende ya ayoni kloridi mu nkhani anafika 440 ~ 1492 mg/kg, Ph = 4.4 ~ 4.6, makamaka malic acid.Kumayambiriro kwa Kuwotcha, zigawo zowononga (malic acid, chloride ion) zimakhutitsa filimu yokutira ndikuchita electrochemical reaction.Pakalipano, filimu yokutira ndi cathode, filimu yokutira imawonongeka ndi filimuyo poyera malata, chitsulo cha anode, mpaka malo oyenera a malata, chitsulo chowonekera, ndi aluminiyumu osavuta kukoka chivundikiro chifukwa cha kuwonongeka kwa chingwe cha aluminium. pamodzi kuti apange batri yaying'ono, kuti ayankhe bimetallic.Panthawi imeneyi, zotayidwa kwa anodic kuukira dzimbiri kuvunda, pamodzi ndi kukhalapo kwa chloride ion mu zili, kulimbikitsa dzimbiri kuyankha imathandizira chitukuko cha zotayidwa aloyi zosavuta kukoka kapu rivet, mzere perforation.

Akuti zakudya zina za asidi wambiri zimakhala ndi ayoni a chloride opitilira 100mg/kg, kuphatikiza nyama zamzitini, nkhuku ndi masamba am'madzi (chifukwa chotenga nawo gawo mumchere kapena sodium kolorayidi), tinplate imagwiritsidwa ntchito pansi pa chitini, ndi zotayidwa aloyi si oyenera chivundikiro cha chithaphwi, tinplate ayenera kugwiritsidwa ntchito mosavuta kukoka chivindikiro, kupewa zimachitika bimetallic electrochemical anachita ndi perforation.