Xov xwm
Infrastructure tej yaam num xav tau cov ntaub ntawv uas muaj peev xwm tiv tau ntev kev pab cuam thaum lub sij hawm seem structurally txhim khu kev qha nyob rau hauv txawv ib puag ncig tej yam kev mob.S280GD txheej txheem galvanized steelplays lub luag haujlwm tseem ceeb hauv cov ntawv thov no los ntawm kev sib txuas cov cuab yeej siv zog nrog kev tiv thaiv corrosion zoo.
Raws li kev tsim kho vaj tse txuas ntxiv nthuav dav, qhov kev thov rau galvanized structural steel kev daws teeb meem uas txo tus nqi txij nkawm thiab txhim kho durability tau nce tsis tu ncua.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm galvanized steel yog nws lub peev xwm los tiv thaiv lub hauv paus hlau los ntawm zinc txheej uas ua raws li cov txheej txheem kev txi. Rau S280GD steel, qhov kev tiv thaiv no txuas ntxiv kev pab cuam lub neej nyob rau hauv qhov chaw raug.
| Zinc Txheej Chav Kawm | Hom Kev Siv Scenario |
|---|---|
| Z100–Z140 | Tswj qhov chaw nyob sab hauv lossis ib puag ncig me me |
| Z180–Z275 | Sab nraum zoov qauv thiab infrastructure |
Los ntawm kev xaiv cov txheej txheej tsim nyog, S280GD galvanized steel tuaj yeem hloov mus rau qhov sib txawv ib puag ncig yam tsis muaj kev cuam tshuam cov qauv kev ua haujlwm.
Common Infrastructure Applications
S280GD structural galvanized steel feem ntau siv hauv:
- Utility support structures
- Cable tais thiab kev txhawb nqa ncej
- Thauj-cov chaw muaj feem xyuam
- Lub teeb infrastructure moj khaum
Cov ntawv thov no tau txais txiaj ntsig los ntawm kev kwv yees lub zog muaj zog thiab cov txheej txheem zoo ntawm S280GD steel, tso cai rau cov kws tsim qauv tsim cov qauv nrog kev ntseeg siab.
Cov txheej txheem ntau lawm ntawm S280GD Steel
Peb S280GD steel los ntawm GNEE STEEL siv cov txheej txheem siab - cov txheej txheem tsim khoom los xyuas kom meej tias txhua pawg ntawm cov khoom tuaj yeem ua tiav qhov kev ua tau zoo thiab zoo. Cov hauv qab no yog cov kauj ruam tseem ceeb ntawm peb cov txheej txheem S280GD:
Raw khoom smelting:Peb ua ntej yaj hlau ore thiab carbon ntawm qhov kub thiab txias ntawm li 1500℃los ua kua hlau. Qhov no yog lub hauv paus ntawm tag nrho cov txheej txheem ntau lawm.
Nruam casting:Cov kua hlau ntws mus rau hauv cov khoom siv casting, qhov uas nws maj mam txias thiab solidifies rau hauv ib lub billet, uas dhau los ua cov khoom siv rau cov kauj ruam tom ntej ntawm kev ua haujlwm.
Kub dov:Lub billet yog rhuab mus txog 1100℃thiab dov los ntawm ib tug dov zeb mus rau lub thickness yuav tsum tau. Cov txheej txheem no nteg lub hauv paus ruaj khov rau cov txheej txheem tom ntej ntawm cov hlau.
Txias Rolling:Cov hlau kub- dov yog txias sai thiab dov dua nyob rau hauv chav tsev kub kom ntseeg tau tias cov hlau nto du thiab qhov loj yog qhov tseeb.
Annealing: Lub txias- dov steel yog rhuab mus rau qhov kub ntawm 700-900℃thiab annealed los txhim kho cov ductility ntawm cov hlau thiab txo cov kev ntxhov siab sab hauv.
Galvanizing:Thaum kawg, cov hlau yog coated nrog ib txheej ntawm zinc ntawm li 450℃los ntawm kub -dip galvanizing txheej txheem, uas zoo txhim kho nws cov corrosion kuj thiab ua kom ntev - lub sij hawm durability.
Tsis zoo li S250GD steel, S280GD siv ntau dua rolling pressures thiab ceev cua txias thaum lub sij hawm ntau lawm txheej txheem kom ua tau ib tug yield zog ntawm 280 MPa. S250GD ua tiav lub zog tawm los ntawm 250 MPa los ntawm kev qis qis thiab qis qis qis.
Piv nrog cov qauv hlau tsis muaj coated, galvanized steel ho txo cov zaus txij nkawm. Qhov txiaj ntsig no muaj txiaj ntsig tshwj xeeb hauv cov phiaj xwm kev tsim kho vaj tsev uas nkag mus rau kev kho lossis rov ua dua tshiab yuav raug txwv lossis raug nqi.
GNEE STEEL muab S280GD structural galvanized steel tailored rau kev siv infrastructure, muab cov txheej txheem yooj yim thiab kev ua haujlwm ruaj khov. Nrog rau cov khoom siv tau zoo, GNEE STEEL txhawb nqa cov neeg siv khoom nrhiav cov kev daws teeb meem ruaj khov steel rau ntev - lub sij hawm tsim kho vaj tse.
- Muaj Steel Qib
|
Txuj |
Qib |
C |
Si |
Mn |
P |
S |
Ti |
|
Kev Ua Txhaum Cai Suav Standard |
DX51D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
DX52D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX53D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX54D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX56D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX57D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
Kev Ua Txhaum Cai Japanese Standard |
SGCC |
0.15 |
0.50 |
0.80 |
0.050 |
0.030 |
0.025 |
|
SGCD1 |
0.12 |
0.50 |
0.60 |
0.040 |
0.030 |
0.025 |
|
|
SGCD3 |
0.08 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
SGCD4 |
0.06 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
Rau Cov Qauv Japanese Standard |
SIB 340 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.025 |
|
SIB 400 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.150 |
|
|
SIB 490 |
0.30 |
0.50 |
2.00 |
0.200 |
0.035 |
0.025 |
|
|
TIAB SA 510 |
0.30 |
0.50 |
2.50 |
0.200 |
0.035 |
0.025 |
|
|
Rau Cov Qauv AISI Standard |
S220GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
S250GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S280GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S320GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S350GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
|
|
S550GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
