Zinc tau yooj yim yaj hauv cov kua qaub thiab tuaj yeem yaj hauv alkali, yog li nws yog hu ua cov hlau ntxim hlub. Zinc yuav luag tsis hloov hauv huab cua qhuav. Nyob rau hauv huab cua ntub, zinc nto yuav tsim cov alkaline ntom ntom-type zinc carbonate films. Nyob rau hauv cov huab cua ntawm sulfur dioxide, hydrogen sulfide, thiab marine cua, zinc kuj tsis zoo, tshwj xeeb tshaj yog nyob rau hauv cov huab cua kub thiab high humidity uas muaj cov organic acids, zinc daim phiaj yog yooj yim corroded.
Kub-dip galvanized yeeb nkab: Nws yog txheej txheej alloy uas ua rau cov hlau melting ua rau cov hlau-raws li lub cev, kom cov substrate thiab txheej yog ua ke. Kub-dip galvanized steel yeeb nkab yog siv los khaws cov yeeb nkab steel. Txhawm rau tshem tawm cov hlau oxide nyob rau saum npoo ntawm cov yeeb nkab steel, tom qab pickling, nws yog ntxuav nyob rau hauv ib tug tov aqueous tov zawj ntawm ammonium chloride los yog zinc chloride los yog ammonium chloride, thiab ces xa mus rau nws kub immersion zawj. Thermally galvanized muaj qhov zoo ntawm txheej txheej, muaj zog adhesion, thiab lub neej ua haujlwm ntev. Feem ntau ntawm North craftsmanship siv zinc-galvanized siv los yob zinc supplementation.
Kub-dip galvanized steel kav: Cov yeeb nkab steel matrix thiab melting plating kua muaj cov tshuaj lom neeg lub cev thiab tshuaj lom neeg, ua rau nruj zinc ib-hlau alloy txheej nrog corrosion kuj. Lub alloy txheej yog kev sib xyaw nrog zinc txheej thiab cov yeeb nkab steel matrix. Yog li ntawd, nws cov corrosion kuj muaj zog.
Txhawm rau txhim kho corrosion kuj ntawm cov yeeb nkab steel, galvanized steel yeeb nkab dav dav. Galvanized steel kav muab faib ua ob hom: kub-dip galvanized thiab electroplating. Qhov kub-dip galvanized thiab galvanized txheej yog tuab. Tus nqi ntawm electroplating yog tsawg, thiab qhov saum npoo tsis du heev. Oxygen vuam yeeb nkab: siv los ua steelmaking oxygen tshuab raj. Feem ntau, me me-caliber vuam steel yeeb nkab yog siv. Cov kev qhia tshwj xeeb yog yim hauv yim 3/8-2 ntiv tes. Nws yog ua los ntawm steel bands ntawm 08, 10, 15, 20 los yog 195-Q235. Rau corrosion, qee qhov yuav tsum tau nkag mus zoo.
Txheej txheem ntau lawm:
Galvanized siv → qhib yob → ncab → dov raj → vuam → caws pliav → passivation thiab yaug → zinc ntxiv → teeb tsa → typing logo → tailoring → ziab → phaus.
