Kev kho kom nrawm nrawm (Speed Up Patina Formation)
Rust{0}}Inducing Accelerator Solutions
Siv cov cuab yeej hluav taws xob huab cua huab cua (cov khoom siv feem ntau: hlau chloride, tooj liab sulfate, tannic acid, lossis oxidizers). Cov tshuaj no rhuav tshem cov hlau nto oxide zaj duab xis, pib sai, tsis muaj xeb.
Daim ntawv thov: Ntxuav cov hlau nto (tshem cov roj / zeb nplai), siv cov tshuaj txau los ntawm kev txhuam los yog txhuam, thiab tswj cov av noo 60-80% (xws li, npog nrog yas zaj duab xis) rau 24-72 teev. Cov ntaub ntawv patina hauv 1-2 lub lis piam, piv rau 3+ lub hlis ib txwm.
Advantage: Ua kom cov xim zoo ib yam tsis muaj qhov sib npaug; haum rau tej yaam num xav tau kev zoo nkauj sai.
Nto Abrasion + Acid Pickling
Mechanical abrasion (lub teeb sandblasting, hlau txhuam) tsim ib qho chaw ntxhib, ua rau muaj kev sib cuag nrog cov pa oxygen thiab noo noo txhawm rau txhawm rau txhawm rau xeb.
Acid pickling (siv 5-10% phosphoric acid los yog citric acid) tshem tawm cov nplai zeb, roj, thiab cov kab mob sib kis- tshem tawm cov teeb meem rau xeb tsim. Yaug kom huv si tom qab pickling kom tsis txhob dhau -corrosion.
Kev sib xyaw ua ke: Abrasion + pickling tuaj yeem txo qhov pib xeb los ntawm 50% piv rau cov hlau tsis kho.
Kev Kho Hniav Retention
Tom qab kev npaj nto, siv ib txheej nyias ntawm dej- khaws cov gel los yog qhwv cov hlau hauv cov ntaub ntub dej. Qhov no tswj cov dej tsis tu ncua ntawm qhov chaw, qhov tseem ceeb ua rau cov tshuaj tiv thaiv xeb.
Haum rau qhov chaw qhuav qhov twg cov av noo tsawg dhau los txhawb kev xeb sai.
Kev kho kom qeeb rusting (Inhibit Corrosion)
Ntshiab tiv thaiv txheej
Siv acrylic, silicone, los yog fluoropolymer clear coats. Cov coatings no yog breathable (tso cia me ntsis ya raws / oxygen pauv) tab sis thaiv cov khoom corrosive (ntsev, cov pa phem) thiab txo cov dej noo.
Cov nyhuv: Slows xeb los ntawm 70-90% nyob rau hauv ib puag ncig me me; cov hlau khaws nws cov xim hlau rau xyoo, thiab xeb tsuas yog pib yog tias cov txheej yog khawb.
Nco tseg: Xaiv "weathering steel-tshwj xeeb" cov tsho tiv no kom tsis txhob muaj dej noo (uas ua rau blistering).
Corrosion Inhibitor Kev Kho Mob
Siv cov tshuaj inorganic inhibitors (piv txwv li, chromate, phosphate) los yog organic inhibitors (xws li, amines, imidazolines) los ntawm kev txau lossis dipping. Cov tshuaj no adsorb rau ntawm cov hlau nto, ua ib zaj duab xis tiv thaiv uas thaiv cov tshuaj tiv thaiv corrosion.
Haum rau sab hauv lossis semi- sab nraum daim ntawv thov; qee qhov inhibitors (xws li, phosphate) kuj tuaj yeem txhim kho adhesion yog tias pleev xim rau tom qab.
Kub-Dip Galvanizing (Zinc Txheej)
Dip cov hlau nyob rau hauv molten zinc (450 degree) los ua ib tug 50-100μm tuab zinc txheej. Zinc ua raws li kev txi anode, corroding ua ntej los tiv thaiv lub hauv paus Q355NH.
Cov nyhuv: Yuav luag tsis xeb ntawm lub hauv paus hlau rau 20-30 xyoo (txawm nyob rau hauv ntug dej hiav txwv). Lub zinc txheej yuav ploj mus rau lub dull grey dhau sijhawm tab sis tseem tiv thaiv.
Tradeoff: Hloov cov hlau qhov qub tsos (poob weathering steel's natural patina aesthetic).
Primer + Topcoat Painting
Siv cov xeb-inhibitive primer (piv txwv li, epoxy primer) ua raws li los ntawm lub tsho tiv no (xws li, polyurethane, alkyd xim). Cov primer thaiv cov dej noo / oxygen, thaum lub topcoat muab kev tiv thaiv ntxiv.
Cov nyhuv: qeeb rusting indefinitely yog khaws cia (rov muab tshuaj pleev ib ce txhua 5-10 xyoo). Zoo tagnrho rau tej yaam num uas xav tau kev cai xim thiab ntev -lub sij hawm corrosion kuj.
