Nafaqaynta cuntada qasacadaysan, badbaadada, ku habboonaanta, waa inay noqotaa cuntada ugu habboon.Laakiin sida gasacadaha si buuxda loo daboolay dhowrkii sano ee la soo dhaafay, gasacadaha dhalooyinka ayaa laga doortay dhalooyinka guusha ee qaabka Suzhou, taasoo faafineysa fariinta ah "ku dhadhamin karo afkuna way adag tahay in la furo".Taasi waa su'aasha ugu weyn.Macaamiisha ma fududa in la cuno, oo ay weheliso saameyn halis ah horumarinta warshadaha qasacadaysan.Hadda kor u qaadida firfircoon ee warshadaha qasacadaha, gasacadaha tinplate leh dabool fudud oo furan, gaasadaha dhalooyinka leh dabool aan la daboolin.In ka badan toban sano ka hor, dad badan ayaa doortay inay isticmaalaan daboolyo fudud, kuwaas oo ahaa gasacadaha boorash siddeed-khasnad ah.Meesha hoose ee daasadaha ayaa lagu shubay.Daboolka fudud ayaa laga sameeyay aluminium aluminium waxaana lagu dhejiyay qaaddo yar oo caag ah.Cuntadu waxay ahayd mid aad u habboon, macaamiishuna waxay dareemeen inay aad ugu qanacsan yihiin, hadda, mugga iibka sannadlaha ah ee bariiska qasacadaysan waa ilaa 300,000 oo tan.
Si kastaba ha ahaatee, dhammaan noocyada cuntooyinka qasacadaysan laguma qaabayn karo boorash babao ayaa dooran karaweel cunto caag ah oo leh dabool fudud oo furan.Dhowrkii sano ee la soo dhaafay, warshad cunto gasacadaysan oo ku taal Guangdong ayaa soo saartay gasacadaha casiirka yaanyada.Gasacaduhu waxay ka samaysan yihiin bir qasacadaysan iyo aluminium aluminium ah oo leh dabool si fudud loo jiidi karo, waxa ku jirana waxa ku jira 0.5% sodium chloride (NaCl) .Waxa ku jira koloriin waxaa lagu xisaabiyay inay tahay 303 mg/kg, dhawr bilood oo kayd ah ka dib, wax soo saarka ayaa lagu qasbay inuu joogsado sababtoo ah taangiyada ka daadanaya jeexjeexyada iyo xariiqa daboolka fudud.
Tinplate waxaa loo isticmaalaa xagga hoose ee jirka qasacadaysan.Haddii daboolka daasadda uu ka samaysan yahay aluminium aluminium, baytari yar ayaa la sameeyaa ka dib marka cuntada la qasaaco, falcelinta bimetallic ayaa dhacda.Aluminium waa anode iyo daasad waa cathode.Marka aagga cathode uu ka weyn yahay aagga anode, qaybta anode ee weerarka ayaa qoto dheer, ilaa daloolin.Dhowr sano ka hor, cabitaanka qumbaha ee caanka ah ee Taiwan wuxuu ka samaysan yahay aluminium aluminium ah oo leh dabool fudud oo furan iyo daasadaha hoose ee gasacadaha.Isku-duubnaanta ions chloride ee ku jirta waxa ku jira ayaa gaadhay 440 ~ 1492 mg/kg, Ph = 4.4 ~ 4.6, inta badan malic acid.Marxaladda hore ee Canning, qaybaha wasakhaysan (malic acid, chloride ion) waxay buuxiyaan filimka daahan waxayna fuliyaan falcelinta korantada.Waqtigan xaadirka ah, filimka dahaarka ah waa cathode, filimka dahaarka ah ayaa waxyeello u geystay filimka daasadda ah, birta loogu talagalay anode, ilaa aagga ku habboon ee daasadda, birta bannaanka, iyo aluminium si sahlan loo jiido daboolka sababtoo ah dhaawaca xadhigga aluminium si wadajir ah loo sameeyo baytari-yar, oo loogu talagalay jawaab-celinta bimetallic.Waqtigan xaadirka ah, aluminium loogu talagalay kala dirida daxalka weerarka anodic, oo ay weheliso joogitaanka chloride ion ee ku jira, kor u qaadida jawaabta daxalka si loo dardar-galiyo horumarinta aluminium aluminium fudud-jiid rivet cap, dalool line.
Waxaa lagu soo waramayaa in qaar ka mid ah cuntooyinka aysiidhdu ku badan tahay ay ku jiraan ion koloriin ka badan 100mg/kg, oo ay ku jiraan hilibka qasacadaysan, digaagga iyo khudaarta biyaha (maadaama ka qayb qaadashada cusbada ama chloride sodium) iyo aluminium aluminium ah kuma habboona daboolka qasaca, tinplate waa in si fudud loo isticmaalo si loo jiido daboolka, si looga fogaado dhacdooyinka falcelinta elektiroonigga ah ee bimetallic iyo dalool.
Waqtiga boostada: Meey-10-2022