1. Kev tawg ntawm lub npe
Lub npe piav txog cov yeeb nkabkhoomthiab nwsCov txheej txheem tsim khoom.
S235jr: Qhov no yog European Txuj Ci (EN 10210) Qib Kev Tsim Qauv rau Hlau Hlau.
S: Sawv rau "qauv" hlau.
235: Qhia txog tusYam tsawg kawg nkaus xwb Zogntawm cov khoom yog235 MPa(Megapascals) lossis kwv yees li 34,000 psi. Qhov no yog kev ntsuas ntawm kev ntxhov siab cov hlau tuaj yeem tiv taus yam tsis muaj kev cuam tshuam tas li.
J: Qhia cov khoom siv yog cuam tshuam xeem ntawmChav Chav Kub(Feem ntau {+20℃lossis {+27}℃j ').
R: Qhia tias cov hlau xa tawm hauv adovmob.
H: Cov placix no (feem ntau pom raws li s235jrh lossis s235j0h) qhia meej tias cov khoom yog aHollow seem(zoo li yeeb nkab lossis raj).
Tussaw: Sawv rauMuab kauv submerged arc welded.
Qhov no qhia txog kev tsim khoom tsim khoom nyob qhov twg lub steel sawb (skelp) yog coiled thiab tsim ntawm lub kaum ntse ntse txuas ntxiv, tsim kom muaj kauv.
Weld yog tsim siv covSubmerged Arc Vuam (pom)Txheej txheem, qhov twg arc yog submerged nyob rau hauv ib txheej flux, ua rau muaj siab - Zoo, muaj zog, thiab Weld du.
2. Cov yam ntxwv tseem ceeb thiab cov yam ntxwv
Zoo xws li muaj zog:Nrog ib tug cog lus muaj zog ntawm 235 MPa, nws yog qhov tsim nyog rau ntau cov ntawv thov uas tsis xav tau siab- lub zog steel.
Zoo heev Weldability:Cov tshuaj lom neeg muaj pes tsawg leeg ntawm S235JR steel (tsis yooj yim rau weld siv txhua txoj kev txheem tsis muaj ua ntej - cua sov nyob rau hauv feem ntau.
Dev zoo thiab tawv tawv:Nws tuaj yeem yauv tsis muaj deformation tseem ceeb ua ntej tsis ua haujlwm, uas yog qhov muaj kev nyab xeeb hauv cov qauv. Cov kev cuam tshuam ntawm chav tsev kub tau txaus rau ntau cov chaw.
Tus nqi -}} Ua tau zoo:S235jr yog ib qho kev ua tau zoo, ua rau nws xaiv tau kev lag luam tshaj plaws rau cov phiaj xwm kev coj ua.
3. Cov Ntawv Thov Tib Neeg
S235Jrh Ssaw Kav yog feem ntau siv nyob rau hauv loj {1} {{}} qhov kev cai sib luag yog qhov tseem ceeb tshaj li tuav lub siab siab sab hauv.
Piling:Dav siv raws li lub hauv paus piles rau cov tuam tsev, txuas hniav, thiab tuav phab ntsa.
Dej Kis Tau Dej:Rau qhov loj - diam dej cov khoom thiab dej phwj.
Cov Qauv Qauv Qauv thiab Txhawb:Hauv kev tsim kho cov vaj tse, chav tsev muaj kev lag luam, thiab cov phiaj xwm infrastructure.
Lub koom haum Foundation:Txog cov haujlwm hauv Cocummering.
Choj Piers thiab txhawb nqa.
4. Cov Qauv thiab Cov Lus Qhia Tshwj Xeeb
Hom yeeb nkab no feem ntau yog tsim rau cov qauv hauv qab no thoob ntiaj teb:
EN 1029-1 / -2:Txias tsim welded cov txheej txheem hollow (nquag rau S235JRH).
En 10210-1 / -2:Kub ua tiav Welded cov txheej txheem Hollow.
API 5L:Txawm hais tias ntau ntau rau cov qib siab tau siv hauv cov roj thiab roj, qee qhov tshwj xeeb tuaj yeem them cov khoom no.
ASTM A252:Cov Qauv Qhia Tshwj Xeeb rau Welded thiab Seamless Hlau Yeeb Nkab piles.
Nws yog qhov tseem ceeb los qhia cov qauv tsim nyog hauv qhov kev txiav txim kom ntseeg tau tias cov yeeb nkab ua tau raws li qhov tsim nyog ua tsaug, kev sim, thiab kev tshuaj ntsuam cov cai.
5. Qhov zoo ntawm SSAW kev tsim rau qib no
Diameters loj:SSAW cov txheej txheem tuaj yeem tsim cov kav dej tsim nrog ntau qhov diameters (los ntawm 20 nti}} nti) piv rau kev siv tsheb ntev (LSAW) cov txheej txheem.
Yooj taus ntev heev:SSAW cov kav dej tuaj yeem tsim nyob rau hauv ntau ntev random ntev, txo tus naj npawb ntawm cov teb velds hauv lub raj dej.
Tus nqi - ua tau zoo rau qhov loj me:Rau txoj kab uas ua diamet loj, ssaw feem ntau yog cov qauv tsim kev lag luam feem ntau.
6. Kev sib piv nrog lwm cov qib kawm
| Yam zoo | S235jrh | S355jrh | API 5L Gr. B |
|---|---|---|---|
| Paib lub zog | 235 MPa | 355 MPa | 241 MPa (min) |
| Lub zog tensile | 360-510 MPa | 470-630 MPa | 414 MPA (min) |
| Thawj siv | Yam xwm txheej | High - lub zog qauv | Roj / Roj Kis |
| Qhov Tseem Ceeb | Nqi, weldability | Lub zog siab dua | Kev Muaj Siab |
Lub ntsiab
S235jrh swsaw steel yeeb nkabyog aTus nqi -}}} ua tau zoo, txheej txheem-} {- inchaer yeeb nkabpaub rau nws qhov zoo weldability thiab ductility. Nws yog qhov mus -} kev xaiv rau piling, thiab sib kis dej, thiab sab hauv qhov chaw siab tsis yog qhov kev txhawj xeeb thawj. Cov kauv weld manufacturing tso cai rau kev tsim cov kav dej ntau lawm hauv cov kab uas loj loj heev.
