Ama-fasteners ayingxenye yezingxenye eziyisisekelo ezijwayelekile, ngokuvamile ezibizwa nangokuthi "izingxenye ezijwayelekile".Kwamanye ama-fasteners anamandla aphezulu nokunemba, ukwelashwa okungaphezulu kubaluleke kakhulu kunokwelashwa okushisayo.Zonke izinhlobo zezinsimbi ezisetshenziswa enanini elikhulu lemishini eyimishini, cishe zonke zidinga ukuqoqwa ngemuva kokwelashwa okungaphezulu, ukuze kuzuzwe i-anticorrosion, ukuhlobisa, ukumelana nokugqoka, ukunciphisa i-friction coefficient kanye neminye imiphumela, kanye nokwelashwa kwe-inorganic surface electrogalvanizing kanye ne-hot galvanizing ubuchwepheshe bokuvikela i-cathodic.
Umgomo wemikhiqizo yokubopha insimbi ye-electrogalvanizing ukusetshenziswa kwe-electrolysis, ukwakheka komfaniswano, uminyene, ungqimba oluhlanganiswe kahle lwensimbi noma i-alloy deposition ebusweni bomsebenzi wokusebenza, ukwakheka kongqimba lokumboza endaweni yensimbi, ukuze ukufeza ukuvikelwa kwenqubo yokugqwala kwensimbi.Ngakho-ke, i-electrogalvanized coating iwukunyakaza okuqondisayo kusuka ku-electrode enhle kuya ku-electrode engalungile usebenzisa yamanje.I-Zn2+ ku-electrolyte ine-nucleated, ikhule futhi ifakwe ku-substrate ngaphansi kwesenzo esinamandla sokwenza ungqimba olunamanzi.Kule nqubo, ayikho inqubo yokusabalalisa phakathi kwe-zinc nensimbi.Kusukela ekubonweni kwe-microscopic, kufanele kube ungqimba oluhlanzekile lwezinc.Empeleni, ukucwilisa hot lashukumisa iron-zinc ingxubevange ungqimba futhi okuhlanzekile zinc ungqimba, futhi lashukumisa kuphela ungqimba okuhlanzekile zinc, ngakho, nge iron-zinc ingxubevange ungqimba kusukela enamathela ngokuyinhloko kusekelwe ukuhlonza indlela enamathela, efanelekayo izinsimbi zikagesi, izintambo zensimbi, ipayipi lensimbi neminye imikhiqizo.Indlela ye-Metallographic kanye nendlela ye-XRD isetshenziselwa ukuthola ukunamathela ukuze kuhlukanise i-electrogalvanizing ne-hot galvanizing, kanye nokunikeza isiqondiso sokuhlaziya ukwehluleka.
Kunezindlela ezimbili zokukhomba i-electrogalvanizing ne-hot galvanizing coatings.Enye indlela ye-metallographic: indlela ye-metallographic ayinqunyelwe uhla lokuqukethwe kanye nosayizi wesampula, futhi ifanele yonke imikhiqizo yokufaka ama-electrogalvanizing kanye ne-hot galvanizing.Enye indlela ye-X-ray diffraction: isebenza kububanzi obungaphezu kuka-5mm amabhawodi okucwenga namantongomane endizeni enezinhlangothi ezine;Ububanzi bangaphandle bukhulu kunemikhiqizo ye-radian yepayipi lensimbi engu-8mm, ukuze kuqinisekiswe ukuthi isampula lingenziwa libe ngusayizi omncane wesampula eyisicaba engu-5mm×5mm, kanye nazo zonke izinhlobo zemikhiqizo yokumboza.Ingaqinisekisa ukwakheka kwekristalu kokuqukethwe kokumboza ≥5% isigaba.Amasampula anamadiphozithi e-zinc aqinile kakhulu awafanele ukuhlukaniswa kwe-X-ray.
i-electrogalvanizing
ezishisayo galvanizing ezinengilazi
Isikhathi sokuthumela: Sep-15-2022