Galvanized waya - usoro kemịkalụ maka iwepu mkpuchi zinc

waya galvanizedn'iji oge eme ihe, elu nke galvanized oyi akwa ga-apụ apụ, daa, ya mere, ọ na-emetụta mma nke eriri galvanized, naanị iji mee ka elu nke galvanized oyi akwa wepụ ihe niile, mgbe polishing, mkpuchi ọzọ, ya mere. dị ka iji hụ na galvanized waya ọzọ ogologo oge ojiji.

Nke mbụ, mkpa sodium hydroxide 200 ~ 300g / L sodium nitrite 100 ~ 200g / L mmiri ịgbakwunye 1L nke mere na i nwere ike wepụ ihe na-achọsi akụkụ na metal waya na na.The ọgwụgwọ okpomọkụ bụ 100 ℃, na oge bụ ruo mgbe ọcha.
Nchedo nke mkpuchi zinc na ígwè matrix nwere ụkpụrụ abụọ: n'otu aka ahụ, ọ bụ ezie na zinc na-arụsi ọrụ ike ma dị mfe oxidize karịa ígwè, ma ihe nkiri oxide ya adịghị atọ ụtọ na kọmpat dị ka ígwè oxide.Okpokoro oxide dị oke kpụrụ n'elu na-egbochi oxidation ọzọ nke zinc n'ime ime.Karịsịa mgbe passivation nkegalvanizedoyi akwa, n'elu nke oxide oyi akwa bụ ndị ọzọ oké na ok, n'onwe ya nwere a elu oxidation mgbochi.
N'aka nke ọzọ, mgbe elu nkegalvanizedoyi akwa mebiri emebi, na-ekpughe ihe dị n'ime ígwè matrix, n'ihi na zinc na-arụ ọrụ karịa ígwè, n'oge a, zinc na-arụ ọrụ nke ịchụ àjà zinc anode, zinc ga-oxidized tupu ígwè, nke mere na iji chebe ígwè oyi akwa agaghị emebi.