Galvanized hlauNyob rau hauv kev siv lub sij hawm ntawm lub sij hawm, lub nto ntawm galvanized txheej yuav tev tawm, poob, yog li nws cuam tshuam rau kev zoo nkauj ntawm galvanized hlau, tsuas yog cia lub nto ntawm galvanized txheej tag nrho tshem tawm, tom qab polishing, rov txheej, yog li ntawd. raws li kom ntseeg tau tias cov galvanized hlau siv ntev dua.
Ua ntej tshaj plaws, qhov xav tau ntawm sodium hydroxide 200 ~ 300g / L sodium nitrite 100 ~ 200g / L dej ntxiv rau 1L kom koj tuaj yeem tshem tawm qhov xav tau ntau dua thiab cov hlau hlau thiab lwm yam.Kev kho mob kub yog 100 ℃, thiab lub sij hawm yog kom txog rau thaum lub purification.
Kev tiv thaiv zinc txheej ntawm hlau matrix muaj ob lub hauv paus ntsiab lus: ntawm ib sab, txawm hais tias zinc muaj zog dua thiab yooj yim rau oxidize dua hlau, tab sis nws cov oxide zaj duab xis tsis yog xoob thiab compact li hlau oxide.Qhov ntom oxide txheej tsim rau ntawm qhov chaw inhibits ntxiv oxidation ntawm zinc nyob rau hauv sab hauv.Tshwj xeeb tshaj yog tom qab passivation ntawmgalvanizedtxheej, nto ntawm oxide txheej yog ntau tuab thiab ntom, nws tus kheej muaj kev tiv thaiv oxidation siab.
Ntawm qhov tod tes, thaum nto ntawm lubgalvanizedtxheej txheej puas lawm, nthuav tawm cov hlau sab hauv matrix, vim zinc muaj zog dua hlau, lub sijhawm no, zinc bears lub luag haujlwm ntawm kev txi zinc anode, zinc yuav oxidized ua ntej hlau, thiaj li tiv thaiv cov hlau txheej yuav tsis puas.
Post lub sij hawm: 18-03-22