Cov txheej txheem thiab qhov zoo ntawm Weathering Steel Phaj
Weathering steel, tseem hu ua atmospheric corrosion resistant steel, yog ib qho qis -alloy steel series ntawm cov hlau zoo tib yam thiab stainless hlau. Huab cua steel daim hlau yog tsim los ntawm kev ntxiv me me ntawm corrosion-cov khoom tiv taus xws li tooj liab thiab npib tsib xee rau cov pa roj carbon zoo tib yam. Nws cov huab cua tsis kam yog 2-8 npaug ntawm cov pa roj carbon zoo tib yam, thiab nws cov xim pleev xim yog 1.5-10 npaug ntawm cov pa roj carbon zoo tib yam.
Vim li cas huab cua steel xeb tsis muaj corroding?
Tsis zoo li cov hlau zoo tib yam, huab cua steel pib corrodes ntawm nws qhov chaw, ib yam li cov hlau zoo tib yam. Vim nws cov ntsiab lus alloy siab dua, cov txheej txheem no tseem nrawm dua nrog cov hlau zoo tib yam. Txawm li cas los xij, vim hais tias sab hauv siv lead ua lattice ntawm weathering steel yog ntau nyuaj, ib txheej tuab, tsaus xeb txheej loj hlob hauv qab xoob xeb ntawm qhov chaw. In this dense rust layer, nickel atoms replace some of the iron atoms, giving the rust layer cation selectivity and resisting the penetration of corrosive anions.
It is this dense rust layer that prevents further internal corrosion of weathering steel, even though the surface rusts. In fact, with careful observation, it's clear that the surface of weathering steel differs from ordinary rust: the rust on weathering steel is uniform and dense, adhering tightly to the steel surface and protecting it; thaum zoo tib yam xeb yog mottled, xoob, thiab ntxeem tau, crumbling ntawm me ntsis kov.
Weathering Steel Phaj Manufacturing Txheej txheem
Weathering steel phaj feem ntau siv cov txheej txheem xws li: raw khoom them - smelting (converter, hluav taws xob rauv - micro-alloying kev kho mob - argon tshuab - LF refining - tsis tshua muaj superheat nruam casting (feem ntau tsis tshua muaj lub ntiaj teb hlau) - tswj dov thiab tswj cua txias. Thaum lub sij hawm smelting, khawb hlau yog ntxiv nrog rau cov khoom siv hluav taws xob ntxiv rau cov khoom siv hluav taws xob. txheej txheem, thiab tom qab tapping, deoxidizers thiab alloys ntxiv. Tom qab ntawd cov hlau molten yog kho nrog argon tshuab thiab tam sim ntawd nrum. Lub argon-rhuab molten steel yog ces muab pov rau hauv slabs siv ib tug nruam casting tshuab. Vim qhov sib ntxiv ntawm cov ntsiab lus tsis tshua muaj hauv ntiaj teb, cov huab cua steel phaj yog huv si, thiab cov ntsiab lus suav nrog txo qis heev.
Kev siv Weathering Steel
Weathering steel feem ntau yog siv hauv kev tsheb ciav hlau, tsheb, txuas hniav, yees, thiab lwm yam kev siv. Weathering steel yog siv nyob rau hauv steel qauv raug rau huab cua rau ncua sij hawm, xws li nyob rau hauv high-ceev engineering tej yaam num. Nws kuj tseem tuaj yeem siv los tsim cov khoom siv rau cov thawv, tsheb ciav hlau, roj derricks, chaw nres nkoj cov tsev, roj platforms, thiab ntim khoom siv hauv cov khoom siv tshuaj lom neeg thiab roj av rau cov ntawv thov uas muaj leej faj- muaj cov xov xwm corrosive. Tsis tas li ntawd, vim nws qhov tshwj xeeb zoo nkaus li, huab cua steel feem ntau siv hauv pej xeem kos duab, duab puab sab nraum zoov, thiab lub tsev kho kom zoo nkauj.
Qhov zoo:
1. Ntsuab thiab Environmentally Friendly: Nws tshem tawm qhov xav tau ntawm cov txheej txheem thawj zaug, txo qhov kev siv hluav taws kub - cov txheej thiab npog, yog li txo cov pa phem, txo lub sij hawm tsim kho, txo tus nqi, thiab txo kev txij nkawm. Nws yog cov khoom siv ntsuab thiab ruaj khov kev lag luam steel.
2. High Visual Appeal: Weathering steel hloov xim nyob rau lub sij hawm, nrog brightness thiab saturation ntau dua li cov khoom siv hauv tsev, ua kom nws sawv tawm yooj yim dua tiv thaiv cov ntoo ntsuab.
3. Muaj zog Shaping Capability: Weathering steel yog yooj yim shaped mus rau hauv ntau yam ntaub ntawv thaum tswj kev ncaj ncees zoo.
4. Zoo Spatial Txhais: Nyias weathering steel daim hlau yuav kom meej meej thiab meej cais qhov chaw, ua rau lub site yooj yim thiab kaj.
