Ukukhethwa kwengubo yangaphakathi yamathini e-tinplate (okungukuthi, amathini ensimbi ambozwe nge-tin) ngokuvamile kuncike ohlotsheni lokuqukethwe, okuhlose ukuthuthukisa ukumelana nokugqwala kwethini, ukuvikela ikhwalithi yomkhiqizo, nokuvimbela ukusabela okungathandeki phakathi kwensimbi nokuqukethwe. Ngezansi okuqukethwe okuvamile kanye nokukhetha okuhambisanayo kwengubo yangaphakathi:
1. Iziphuzo (isib. iziphuzo ezibandayo, amajusi, njll.)
Eziphuzweni eziqukethe izithako ezine-asidi (njengejusi likalamula, ijusi lewolintshi, njll.), ungqimba lwangaphakathi luvame ukuba ungqimba lwe-epoxy resin noma ungqimba lwe-phenolic resin, njengoba lezi zingqimba zinikeza ukumelana okuhle kakhulu kwe-asidi, zivimbela ukusabela phakathi kokuqukethwe nensimbi futhi zigweme ukunambitheka okungekuhle noma ukungcola. Eziphuzweni ezingezona i-asidi, ungqimba lwe-polyester olulula (njengefilimu ye-polyester) luvame ukwanele.
2. Ubhiya nezinye iziphuzo ezidakayo
Iziphuzo ezidakayo zilimaza kakhulu izinsimbi, ngakho-ke i-epoxy resin noma i-polyester coatings zivame ukusetshenziswa. Lezi coatings zihlukanisa ngempumelelo utshwala ethini lensimbi, zivimbele ukugqwala kanye nokushintsha kokunambitheka. Ngaphezu kwalokho, ezinye coatings zihlinzeka ngokuvikelwa kwe-oxidation kanye nokuvikelwa okulula ukuvimbela ukunambitheka kwensimbi ukuthi kungangeni esiphuzweni.
3. Imikhiqizo yokudla (isib., amasobho, imifino, inyama, njll.)
Kumikhiqizo yokudla enamafutha amaningi noma ene-asidi ephezulu, ukukhetha ingubo kubaluleke kakhulu. Izingubo zangaphakathi ezivamile zifaka i-epoxy resin, ikakhulukazi i-epoxy-phenolic resin composite coatings, ezingagcini nje ngokuhlinzeka ngokumelana ne-asidi kodwa futhi zingamelana namazinga okushisa aphezulu kanye nokucindezeleka, okuqinisekisa ukugcinwa kwesikhathi eside kanye nokuphila kwesikhathi eside kokudla.
4. Imikhiqizo yobisi (isib. ubisi, imikhiqizo yobisi, njll.)
Imikhiqizo yobisi idinga izembozo ezisebenza kahle kakhulu, ikakhulukazi ukugwema ukusebenzisana phakathi kwezembozo namaprotheni namafutha kubisi. Izembozo ze-polyester zivame ukusetshenziswa njengoba zinikeza ukumelana okuhle kakhulu kwe-asidi, ukumelana nokushiswa kwe-oxidation, kanye nokuqina, zigcina ngempumelelo ukunambitheka kwemikhiqizo yobisi futhi ziqinisekise ukugcinwa kwayo isikhathi eside ngaphandle kokungcola.
5. Amafutha (isib., amafutha adliwayo, amafutha okugcoba, njll.)
Ngemikhiqizo kawoyela, uqweqwe lwangaphakathi kumele lugxile ekuvimbeleni uwoyela ukuthi ungahlangani nensimbi, kugwenywe ukunambitheka okungekuhle noma ukungcola. Uqweqwe lwe-epoxy resin noma lwe-polyester luvame ukusetshenziswa, njengoba lokhu qweqwe luhlukanisa uwoyela ngempumelelo ngaphakathi kwensimbi yethini, luqinisekisa ukuzinza nokuphepha komkhiqizo kawoyela.
6. Amakhemikhali noma upende
Kwimikhiqizo engeyona ukudla efana namakhemikhali noma upende, uqweqwe lwangaphakathi ludinga ukunikeza ukumelana okunamandla kokugqwala, ukumelana namakhemikhali, kanye nokumelana nokushisa okuphezulu. Uqweqwe lwe-epoxy resin noma uqweqwe lwe-polyolefin olune-chlorinated luvame ukukhethwa, njengoba luvimbela ngempumelelo ukusabela kwamakhemikhali futhi luvikele okuqukethwe.
Isifinyezo Semisebenzi Yokumboza Kwangaphakathi:
• Ukumelana nokugqwala: Kuvimbela ukusabela phakathi kokuqukethwe nensimbi, okwandisa isikhathi sokuphila kwayo eshalofini.
• Ukuvimbela ukungcola: Kugwema ukumuncwa kwezinongo zensimbi noma ezinye izinto ezingathandeki kokuqukethwe, okuqinisekisa ikhwalithi yokunambitheka.
• Izakhiwo zokuvala: Kuthuthukisa ukusebenza kokuvala kwethini, kuqinisekisa ukuthi okuqukethwe akuthonywa yizici zangaphandle.
• Ukumelana nokuvundisa: Kunciphisa ukuvezwa kokuqukethwe ku-oxygen, kubambezele izinqubo zokuvundisa.
• Ukumelana nokushisa: Kubaluleke kakhulu emikhiqizweni ecutshungulwa ngokushisa okuphezulu (isb., ukuhlanza ukudla).
Ukukhetha ingubo yangaphakathi efanele kungaqinisekisa ngempumelelo ukuphepha kanye nekhwalithi yomkhiqizo opakishiwe ngenkathi kuhlangatshezwana nezindinganiso zokuphepha kokudla kanye nezidingo zemvelo.
Isikhathi sokuthunyelwe: Disemba 10-2024