I-hot dip galvanizing yensimbi yensimbi ibizwa nangokuthi i-hot dip galvanizing.I-Zinc ingots iyancibilika ezindaweni ezishisayo futhi ezinye izinto ezisizayo zengezwa ekufakweni kwediphu eshisayo.Izingxenye zegridi yensimbi zibe sezicwiliswa ethangini lokufaka uthayela futhi ungqimba lwama-galvanizing lunamathiselwe epuleti lensimbi.Amandla e-dip galvanizing ashisayo ancike ekuqineni kwawo kokugqwala, futhi ukunamathela nobulukhuni beshidi eliphehliwe kungcono.Inani lepuleti lensimbi elithathiwe ngemva kokufaka uthayela.Ngakho leli inani elijwayelekile le-zinc.
Ukwakheka kongqimba olushisayo lwediphu elishisayo lwakhiwe ungqimba olushisayo lwediphu, olwakhiwe ngengxube yensimbi ye-zinc phakathi kwe-iron matrix kanye nongqimba lwezinc oluhlanzekile olungaphezulu.Ukuma kwe-workpiece kwakhiwa ungqimba lwensimbi ye-zinc alloy ku-dip eshisayo, ukuze ungqimba lwe-iron ne-zinc oluhlanzekile luthinte okuvelele.Lapho i-workpiece yensimbi icwiliswa kwisisombululo se-zinc esincibilikisiwe, i-zinc yokuqala ne-iron (umzimba) kwakheka endaweni esibonakalayo.Lena ikristalu eyakhiwe ama-athomu e-zinc ensimbi yensimbi eqinile.Lapho ama-athomu amabili ensimbi ehlanganiswa ndawonye, amandla adonsela phansi phakathi kwama-athomu mancane kakhulu.
Ngakho, lapho i-zinc yanele ekuncibilikeni okuqinile, ama-athomu amabili e-zinc nensimbi ayahlakazeka.Ama-athomu e-zinc ku-matrix yensimbi athuthelwa ku-lattice ye-matrix, futhi izakhi zensimbi zikhiwa kancane kancane zibe ama-alloys.Ukwakheka kwe-zinc kwensimbi kanye nenhlanganisela ye-intermetallic FeZn13 esixazululweni se-zinc esincibilikisiwe kanye nangaphansi kweshidi elishisayo lathayela kungasetshenziswa njenge-zinc slag.Isendlalelo se-zinc esihlanzekile esakhiwe isisombululo se-zinc leaching yikristalu ene-hexagonal.
Lapho izinga lokushisa lisebenza ezingeni lokushisa elifanayo futhi ukushisa okufanayo kugcinwa, inani lensimbi encibilikile alifani.Cishe ku-500, ukulahleka kwensimbi kukhuphuka kakhulu ngokungezwa kwezinga lokushisa nokufakwa.Iphansi noma ingaphezulu kuka-480~ 510c, futhi ukulahlekelwa yi-epitaxial iron kuhamba kancane, futhi kunzima ukuhambisana nobude besikhathi.Ngakho-ke, wonke umuntu uzobiza i-480~ 510c indawo encibilikayo embi.
Kulolu hlu lokushisa, isisombululo se-zinc sigqwalile kakhulu ku-workpiece kanye nebhodwe le-zinc, futhi insimbi ilahleka ku-560 degrees Celsius ukuze ungeze ngokusobala, futhi i-zinc izoba yi-iron substrate engaphezu kuka-660 degrees Celsius, i-zinc slag izokwengezwa. ngokushesha, i-plating ayikwazi ukusetshenziswa.Ngakho-ke, i-electroplating yenziwa ebangeni lama-430 ~ 450 degrees Celsius.
Isikhathi sokuthumela: 24-11-22