Paipu kila galvanizedʻO ia ke kūlana o ka zinc metala i hoʻoheheʻe ʻia a me ka hoʻololi ʻana o ka substrate hao o ka papa alloy, i hiki ai i ka substrate a me ka hui ʻana o nā mea ʻelua.Ma ka hoʻohana ʻana i ka ʻenehana i ka galvanized, Hot dip galvanized e hana mua i ka pickling, i mea e wehe ai i ka ʻili kila o ka hao oxide, ma hope o ka pickling, ma o ka wai wai o ka ammonium chloride a i ʻole zinc chloride a i ʻole ammonium chloride a me ka chlorinated zinc hui pū wai wai pahu no ka hoʻomaʻemaʻe ʻana, a laila i loko o ka ʻauʻau ʻauʻau wela.Hot-dip galvanized me ka hoʻohui like ʻana, ka hoʻopili ikaika, ke ola lōʻihi a me nā pono ʻē aʻe.No laila, ʻo nā ʻenehana e ka ipu hao wela a me ka ʻauʻau hoʻoheheʻe ʻia ma o ke kino paʻakikī, ka hopena kemika, ka hoʻokumu ʻia ʻana o kahi papa zinc-alloy paʻakikī o ka hale paʻa.No laila, ʻo ka galvanized steel alloy layer a me ka papa o ka zinc maʻemaʻe, ka hui kumu kila e hana i ka hiki ke kū i ka corrosion.

ʻOi aku ka kiʻekiʻe o ka zinc chemical lively sex ma mua o ka hao, i ka wā e hiki mai ai ka corrosion electrochemical, ʻo ka zinc mua ka corrosion ma kahi o ka hao, zinc oxide a me ka paʻa paʻa, hiki ke pale i ka hoʻoneʻe hou ʻana.ʻO ka maʻamau galvanized kila he maikaʻi ka corrosion kū'ē, corrosion o kanu metala paipu ua maheleia i elua ano o ka likeʻole corrosion a localized corrosion, localized corrosion ka hapanui o dominated, ka pilikia ka mea nui.Steel corrosion i ka lepo electrochemical dissolution kaʻina mea nui ma muli o ka hookumu ana o ka corrosion cell hopena pipeline corrosion perforation.E kaomi i ka corrosion cell anode a me ka cathode spacing nui, akā e hoʻohālike i ke kila i loko o ka micro-cell corrosion corrosion a me ka macro cell corrosion ʻelua mau ʻāpana.Electrochemical corrosion no ke kanu ʻia ʻana o ka pipeline, ke ʻano hana hoʻokaʻawale ʻana i ke kila e hoʻomaka ai i kahi kaʻina hana.Inā ʻo ka pā paipu a me ka uhi anti-corrosion, hiki ke hoʻonui ʻia ke kūpaʻa o ka loop, e hōʻemi ana i ke au o ka corrosion;waho DC mana lako, no laila, i ka lepo paipu kumu ino, ka hookumu ana o ka cathodic palekana anode hiki ke hoopau ia mai ke kumu e hooki i ke kaʻina hana o ka anode a me ka cathode hele.Akā i ka wā e poino ai ka pale anti-corrosion, e hoʻolalelale i nā ʻāpana hao i ʻike ʻia.No laila, ʻo ka uhi anti-corrosion a me ka pale cathodic i hui pū ʻia i kēia ʻano ka papaʻaina, ʻoihana a me ka maikaʻi.