Txhawm rau txhim kho corrosion kuj ntawm cov yeeb nkab steel, qhov nruab nrab steel yeeb nkab yog galvanized. Galvanized steel kav muab faib ua ob hom: kub, galvanized thiab electroplating.
Qhov kub-dip galvanized thiab galvanized txheej yog tuab, tus nqi ntawm galvanizing yog tsawg, thiab qhov saum npoo tsis du heev.
Nominal phab ntsa thickness: mm20252.8, 3.2, 3.5, 3.8, 4.0, 4.5.
Coefficient: C1.064, 1.051, 1.045, 1.040, 1.036, 1.034, 1.032, 1.028.
1. Kev ntxuav dej huv
Cov dej huv tau ntxuav cov phab ntsa hauv cov yeeb nkab steel nrog cov dej ntshiab, tab sis rau cov calcium magnesium ion stains, cov av nkos lom, thiab lwm yam txuas rau sab hauv phab ntsa ntawm cov yeeb nkab steel, nws tsis tuaj yeem tshem tawm tag nrho, thiab cov nyhuv tsis pom tseeb.
2. Lub tshuab ntxuav
Potum tu yog cov tshuaj reagent hauv dej, tab sis cov khoom xyaw tshuaj muaj corrosive ntawm cov yeeb nkab steel, thiab tseem ua rau lub neej luv ntawm cov yeeb nkab steel. Nws yog ib txoj kev nuv ntses thiab nuv ntses.
Lub kauv steel yeeb nkab yog kauv seam steel yeeb nkab nrog steel yob phaj raws li cov khoom siv raw, uas feem ntau yog nyem los ntawm sov nyem, thiab cov txheej txheem tseem ceeb yog ua raws li cov txheej txheem tsis siv neeg ob-sided ob-sided faus arc vuam txheej txheem. Cov txheej txheem ntau lawm yog raws li nram no:
3. Kev ntxuav lub cev
Tam sim no nyob rau hauv kev ua lag luam, lub hauv paus ntsiab lus ntawm kev ua hauj lwm ntawm no hom ntawm tu yog yeej siv compressed cua raws li lub hwj chim. Lub tshuab xa hluav taws xob siv lub tshuab xa hluav taws xob los tua cov mos txwv tshwj xeeb loj dua li lub taub sab hauv ntawm lub raj xa dej kom nws ua raws li qhov siab-ceev txav ntawm sab hauv phab ntsa ntawm cov yeeb nkab txoj kev thiab kev sib txhuam. Ntxuav cov nyhuv ntawm sab hauv phab ntsa ntawm cov kav dej. Txoj kev ntxuav no yog pom tseeb, thiab nws yog qhov yooj yim tsis muaj kev puas tsuaj rau cov kav dej. Nws yog nyob deb mus rau hnub no.
Feem ntau, cov kav dej galvanized tsis tas yuav tsum tau pleev xim, thiab cov xim nyiaj hmoov xim feem ntau yog txhuam.
Tom qab galvanizing cov yeeb nkab steel, qhov saum npoo npog ib txheej ntawm zinc txheej, uas ua rau cov yeeb nkab steel thiab cov cua sib cais, tsis txhob cuam tshuam ncaj qha thiab xeb ntawm cov yeeb nkab steel rau cov yeeb nkab steel, uas yog kev tiv thaiv. Vim muaj cov tshuaj lom neeg muaj zog ntawm zinc nyob rau saum npoo ntawm cov yeeb nkab steel, zinc yuav tsim ib txheej nyias thiab tuab ntawm zinc carbonate nyob rau hauv cov huab cua ntawm chav tsev kub los tiv thaiv zinc nws tus kheej uas yuav tsis mus txuas ntxiv oxidized.
Yog li ntawd, cov yeeb nkab galvanized, ob qho tib si ntawm qhov chaw los yog cov yeeb nkab steel nws tus kheej tiv thaiv, yuav tsis xeb, thiab tsis tas yuav siv cov xim pleev xim. Tsuas yog thaum txheej txheej galvanized raug rhuav tshem, (xws li cov yeeb nkab steel vuam, txheej txheej ntawm cov pob qij txha raug hlawv), cov yeeb nkab steel raug rau saum huab cua, thiab txheej txheej galvanized ploj.
