Corten Hlau yog dab tsi?
Corten A Weathering Steelyog qhov classic siab tshaj -phosphorus weathering steel qib, ASTM low-alloy high-strength steel system. When Corten A steel plates are exposed to the atmosphere and industrial flue gases, a dense and highly stable oxide layer (patina) naturally forms on the steel surface through self-catalyzed reactions.
Qhov no yuav luag xoom-porosity tiv thaiv zaj duab xis ua kom nruj rau hauv cov hlau zoo li cov cuab yeej cuab tam, zoo cais cov dej noo, oxygen, thiab acidic gases, thiab tiv thaiv corrosion los ntawm kev nkag mus rau sab hauv.
Nyob rau hauv qhov tsis muaj xim tsis zoo thiab tsis pom kev, Corten A tuaj yeem ua tiav huab cua tiv thaiv lub neej ntawm 4 mus rau 8 npaug ntawm cov pa roj carbon zoo tib yam, nrog rau tag nrho cov kev pab cuam lub neej ntawm 50 txog 100 xyoo.
Tom qab lub sijhawm ua haujlwm ruaj khov nyob rau xyoo thaum ntxov, cov pa roj carbon zoo tib yam txuas ntxiv mus thiab poob qhov tuab ntawm ib xyoos ib zaug ntawm kwv yees li 30 μm, qhov ntev - lub sij hawm corrosion tus nqi ntawm Corten A sharply txo mus rau ib ncig ntawm 1-2 μm ib xyoo, uas tsuas yog hais txog 1/20 rau 1/30 ntawm cov pa roj carbon steel.
Nrog rau kev nthuav dav ntawm kev lag luam nyob rau hauv Middle East thiab thoob ntiaj teb thoob plaws lub zog tsim hluav taws xob, petrochemical, thiab kev lag luam hluav taws xob hnyav, qhov kev thov rau siab - lub zog steels nrog kev ua haujlwm siab kub thiab atmospheric corrosion tseem loj hlob sai.
Qhov tshwj xeeb siab -phosphorus tsim ntawm Corten A, ua ke nrog cov ntsiab lus chromium, ua rau nws muaj kev ruaj ntseg zoo txawm tias nyob hauv thaj chaw muaj kev lag luam mus txog 450 degree.
Yog li ntawd, Corten A tau nce ntxiv hauv kev siv hluav taws xob tseem ceeb thiab cov phiaj xwm kev tsim kho thoob ntiaj teb, suav nrog cov phiaj xwm hluav taws xob hauv Iraq, muab cov kev daws teeb meem hlau uas sib xyaw ua haujlwm zoo dua kev nyab xeeb nrog cov nqi tshwj xeeb.
Corten A Weathering Steel Phaj Specification
| Yam khoom | Kev piav qhia |
|---|---|
| Qib | Corten A (ASTM Weathering Steel Qib) |
| Txuj | ASTM A242 / ASTM A588 sib npaug / EN sib npaug |
| Thickness | 2.0mm-100.0 hli |
| Dav | 1000mm - 3000mm |
| Ntev | 2000mm - 12000mm (kev cai) |
| Nto tiav | Mill tiav / Rusted patina (natural weathering) / Tua blasted |
| Kev ua haujlwm | Txiav, dabtsi yog khoov, vuam, drilling, CNC machining |
| Kev Xa Khoom | Kub dov / Normalized / Raws li - dov |
| Kev tshuaj xyuas | Chemical composition test, Mechanical properties test, UT, PMI, kev tshuaj xyuas qhov ntev |
Corten A weathering steel daim hlau raug soj ntsuam nruj me ntsis ua ntej xa khoom kom ntseeg tau tias muaj kev ua raws li ASTM A242 / ASTM A588 thiab thoob ntiaj teb cov cai.
Cov tshuaj muaj pes tsawg leeg raug txheeb xyuas kom ntseeg tau tias huab cua ua haujlwm zoo, suav nrog cov ntsiab lus tseem ceeb xws li Cu (0.25-0.55%), Cr (0.30-1.25%), thiab tswj cov ntsiab lus phosphorus nyob ntawm cov lus qhia tshwj xeeb.
Cov cuab yeej cuab tam yog nruj me ntsis tswj nyob rau hauv tus txheej txheem ntau yam, feem ntau suav nrog qhov tsawg kawg nkaus yield zog ntawm ntau dua los yog sib npaug rau 345 MPa, tensile zog ntawm 485-620 MPa, thiab elongation ntawm ntau dua los yog sib npaug rau 18-21% nyob ntawm thickness.
Kev kuaj ultrasonic (UT) yog ua tiav ntawm 100% kev pabcuam raws li ASTM A578 / EN 10160 tus qauv kom ntseeg tau tias lub suab sab hauv thiab qhov tsis xws luag -dawb zoo.
Dimensional kam rau ua yog tswj raws li ASTM / EN kub- dov phaj qauv, feem ntau nyob rau hauv ± 0.3-1.5 hli nyob ntawm thickness ntau.
Tag nrho cov txiaj ntsig tau sau tseg hauv Daim Ntawv Pov Thawj Zeb Xeem (MTC) ua raws li EN 10204 3.1 lossis 3.2, thiab thib peb-cov ntaub ntawv tshuaj xyuas tog (SGS, BV, TUV) tuaj yeem muab los xyuas kom meej tag nrho cov ntaub ntawv xa tawm xws li kev lag luam chimneys thiab cov ntawv thov kev tsim kho.
Peb muab cov kev pabcuam ua tiav rau Corten A weathering steel daim hlau kom tau raws li qhov sib txawv engineering thiab kev xav tau kev tsim vaj tsev. Cov kev pabcuam txiav muaj xws li laser txiav, plasma txiav, nplaim taws txiav, thiab kev txiav me me raws li cov duab kos.
Peb kuj muaj kev khoov thiab tsim cov kev pab cuam xws li kub / txias dabtsi yog khoov, phaj dov, thiab ntug sib sau los tsim cov duab nkhaus los yog kho kom haum rau cov qauv siv thiab tsim.
Vuam thiab fabrication kev pabcuam muaj, suav nrog MIG, MAG, thiab TIG vuam, nrog rau kev sib dhos ntawm cov khoom siv hlau thiab cov khoom siv rau cov haujlwm sab nraum zoov.
Cov kev xaiv kho mob saum npoo suav nrog kev tua blasting (SA2.5), ntxuav, thiab tswj ua ntej- kev kho xeb kom ua tiav cov huab cua ruaj khov patina.
Peb kuj muab kev pabcuam drilling thiab CNC machining xws li qhov drilling, xuas nrig ntaus, slotting, thiab precision machining raws li qhov project drawings.
Tsis tas li ntawd, peb tuaj yeem muab cov khoom tiav tiav thiab muab kev txhawb nqa, kev pabcuam CAD, thiab ntim khoom xa tuaj kom muaj kev nyab xeeb rau cov haujlwm thoob ntiaj teb.
Corten A weathering steel daim hlau feem ntau yog ntim khoom siv tus qauv xa tawm -npaj kev tiv thaiv kom muaj kev nyab xeeb kev thauj mus los thiab tiv thaiv kom tsis txhob ya raws thaum thauj.
Cov ntawv hlau yog qhwv nrog cov yeeb yaj kiab yas tsis muaj dej los tiv thaiv los nag, av noo, thiab ntsev tsuag corrosion thaum thauj dej hiav txwv. Qee zaum, kraft daim ntawv tuaj yeem raug ntxiv los ua ib qho kev tiv thaiv saum npoo ntxiv kom tsis txhob khawb thiab puas tsuaj me me.
Txhua daim hlau yog ruaj khov nrog cov hlua hlau kom ruaj ntseg thaum tuav thiab thauj khoom. Raws li qhov kev txiav txim loj thiab cov neeg siv khoom xav tau, cov ntawv hlau tau ntim rau ntawm cov ntoo pallets lossis hauv cov thawv ntoo, lossis ncaj qha thauj mus rau hauv cov thawv nrog kev txhawb nqa sab hauv rau hnyav - cov khoom xa tuaj.
Txoj kev ntim no ua kom ntseeg tau tias Corten A steel daim hlau tseem nyob zoo - tiv thaiv thaum lub sijhawm ntev - kev thauj mus los thoob ntiaj teb thiab tuaj txog hauv qhov chaw ruaj khov rau kev ua haujlwm ntxiv lossis siv ncaj qha.
Peb muab ntau txoj kev xa khoom rau Corten A steel daim hlau, suav nrog kev ncaj qha mus rau qhov chaw nres nkoj loj hauv Iraqi xws li Umm Qasr. Lub sijhawm thauj mus los ntawm Tuam Tshoj mus rau Iraq yog kwv yees li 25 mus rau 35 hnub, nyob ntawm lub sijhawm thauj khoom.
Peb ua tib zoo saib xyuas cov kev cai ntshuam hauv zos, suav nrog kev lis kev cai, VAT cov cai, thiab txhua yam kev xav tau ntawm steel ntshuam, xyuas kom meej meej meej rau tag nrho cov khoom xa tuaj.
Tag nrho cov ntaub ntawv xa tawm tau npaj tag nrho, suav nrog cov ntawv xa khoom lag luam, cov npe ntim khoom, daim nqi thauj khoom, thiab daim ntawv pov thawj ntawm keeb kwm. Thib peb- daim ntawv pov thawj tshuaj xyuas tog tuaj yeem muab tau thaum xav tau.
Yog tias koj tab tom nrhiav rau koj qhov project Iraq, thov hu rau dawbpeb rau kev hais lus lossis kev sib tham shipping. Peb npaj txhij los txhawb koj qhov kev yuav khoom nrog cov khoom siv txhim khu kev qha thiab kev daws teeb meem logistics.
