A588 Corten Huab Cua Hlau Phajyog ib hom siab - lub zog, qis {{{}} almoy txhim kho cov tshuab hluav taws xob corrospherly.
Feem ntau yog hais tias "cov huab cua hlau," A588 tau siv dav hauv {1} Zoo ib yam li {1} Thiab cov kev ua tau zoo dua thiab muaj zog dua thiab cov kev ua haujlwm zoo dua.
Nta ntawm A588 Corten Huab Cua Hlau Phaj
1. Txhim kho corrosion tsis kam
Thaum nthuav tawm cov huab cua zoo, A588 ua cov roj oxide tuab tuab - lub sij hawm ntev corrosion.
Atmospheric corrosion tus nqi sib piv (kev lag luam muaj kev lag luam):
| Hlau Hom | 1 {-} xyoo corrosion (μm) | Tom qab PATINA STREELANCE (3-5 xyoos) | 10-xyoo corrosion tob |
|---|---|---|---|
| Cov Khoom Siv Carbon Txawv Hlau | 70–100 | 60–80 | 600–900 µm |
| A588 Corten Hlau | 90–130 | <10–25 | 120–250 µm |
➡ A588 corrosion tsis kam txhim kho los ntawm 3-5 × piv nrog cov khoom siv hlau qub.
➡ Kev pabcuam lub neej tuaj yeem yog 2-3 zaug ntev nyob ntawm ib puag ncig.
2. Lub Zog Loj
A588 muab lub zog siab dua ntau tus qauv txheem hlau.
| Ntiag tug | ASTM A36 | ASTM A242 | ASTM A588 |
|---|---|---|---|
| Paib lub zog | 250 MPa | 345 MPa | 345-485 MPa |
| Lub zog tensile | 400-550 MPa | 480-620 mpa | 485-635 mpa |
➡ Muaj zog siab - rau - Qhov hnyav} qhov hnyav sib piv, txo cov khoom siv thinner, txo cov nyiaj siv los ntawm 10-20%.
3. Weldability
A588 tuaj yeem welded siv cov qauv txheej txheem steel hlau (smaw, GMaw, FCaw), nrog pom zoo ua ntej tshaj plaws:
50-100 Qib Rau Thickness> 25 mm
Tsis muaj preheeat xav tau rau nyias daim hlau
Weld lub zog sib piv tus nqi yog ntau dua lossis sib npaug ntawm 95%, ua kom nws vam khom rau choj, vaj tse, thiab cov qauv tsim hnyav.
4. Lub Neej Nyob Hauv Ib puag ncig
A588 tswj hwm kev ua tau ruaj khov hla ntau qhov ntau:
Kev pabcuam kub: -50℃rau +450 degree
Kev cuam tshuam cov tawv (ntawm -20 degree): ntau dua lossis sib npaug rau 20-30 j
Qhov no ua kom muaj kev ntseeg siab rau hauv ob qho huab cua txias thiab huab cua sov.
Tshuaj Muaj Tshuaj
| Lub ntsiab | A588 Cov Ntsiab Lus (%) | Rooj mov |
|---|---|---|
| Carbon (c) | Tsawg dua los yog sib npaug rau 0.19 | Lub zog & Muaj Peev Xwm |
| Tooj Liab (Cu) | 0.20–0.40 | Loj corrosion - ion reistant keeb |
| Chromium (cr) | 0.40–0.65 | Txhim kho xeb txheej ruaj khov |
| Npib tsib caug (ni) | 0.40 | Txhim Kho Patina Tsevneeg |
| Phosphorus (p) | 0.04–0.09 | Kev Txhim Kho Kev Tiv Thaiv Kev Tiv Thaiv Patina |
| Manganese (mn) | 0.8–1.35 | Txhim kho Weldability & lub zog |
| Silicon (si) | 0.15–0.50 | AIDS Oxidation Zaj Duab Xis |
Cov txiaj ntsig tseem ceeb ntawm A588 Corten Huab Cua Hlau Phaj
| Kev pab | Txhawb cov ntaub ntawv / cov lus piav qhia |
|---|---|
| Tsawg txij nkawm | Kev tshem tawm xav tau kev pleev xim, txo txoj kev saib xyuas lub neej los ntawm 70-80% |
| Nqi txuag | Zuag qhia tag nrho cov phiaj xwm txo los ntawm 10-25% vim tsis muaj xim + txo cov hlau hnyav |
| Ceev ntawm kev tsim kho | Tsis Muaj Txheej Txheej → Siv sijhawm ua kom luv los ntawm 7-15% |
| Kev xyuas xim | Txheej ruaj khov ntawm txheej txheem txo kev pheej hmoo ntawm kev npau taws lossis cov txheej txheem demadation |
| Ib puag ncig tus phooj ywg | Txo cov khoom pov tawm suab txij li xim pleev xim rau 100% (tsis tas yuav tsum tau tha xim |
| Aesthetically thov kom txaus siab | Ntuj xim evolution ntau dua 6-24 lub hlis, siv dav hauv architecture & toj roob hauv pes |
Daim Ntawv Thov Xyuas
A588 cov lus qhia tshwj xeeb yog feem ntau npaj rau cov qauv tsis tau muaj lub zog uas muaj zog, thiab ntev} sij hawm corrosion yog xav tau.
Cov kev pabcuam lub neej (tsis them, sab nraum zoov):
40-120 xyoo, nyob ntawm cov huab cua (nyob deb nroog / nroog / Industrial / Nqaum)
