Taw qhia rau European Cov Qauv Hollow Tshooj
European kev tsim kho thiab kev siv tshuab engineering, cov qauv steel hollow seem-xws li square, duab plaub, thiab voj voog- yog cov khoom tseem ceeb uas tau txais txiaj ntsig zoo rau lawv lub zog zoo heev - rau - qhov hnyav piv, qhov zoo nkauj, thiab kev ua haujlwm zoo. Ob tug qauv tseem ceeb qhia lawv siv:EN 10210 thiab EN 10219.
Cov qauv no ua tiav ntau dua li kev sib tw, txhua qhov hais txog cov txheej txheem tsim khoom sib txawv uas tau txais cov khoom siv nrog cov khoom tshwj xeeb haum rau cov ntawv thov tshwj xeeb. Kev nkag siab txog lawv qhov sib txawv yog qhov tseem ceeb rau kev xaiv cov khoom tsim nyog, ua kom muaj kev ua raws cai, thiab ntsuas tus nqi thiab kev ua tau zoo.
EN 10210: Kub-Tiav cov qauv Hollow Sections
1 Txheej txheem cej luam thiab Scope
TS EN 10210npog cov specifications raukub-ua tiav cov qauv hollow seemua los ntawm cov uas tsis yog- alloy thiab zoo- nplej hlau . Lo lus "kub-tiav" (los yog "kub-formed") txhais tau hais tias cov hlau zoo li qhov kub thiab txias, feem ntau saum cov recrystallization point, uas yooj yim rau txoj kev tsim thiab tuaj yeem txhim kho cov khoom siv tshuab.
Cov txheej txheem tau muab faib ua ntu, nrog rau qhov tseem ceeb tshaj plaws:
TS EN 10210-1:Npog covcov txheej txheem kev xa khoom .
TS EN 10210-2:Qhiakam rau ua, qhov ntev, thiab cov khoom seem .
Ib qho ntxiv tsis ntev los no,TS EN 10210-3, muab cov txheej txheem xa khoom rau siab -lub zog thiab huab cua- cov hlau tsis muaj zog.
2 Cov txheej txheem tsim khoom
- Txheej txheem txheej txheem: Cov ntu steel yog tsimkub, feem ntau los ntawm cov txheej txheem zoo li thermomechanical txoj kev.
- Kev kho cua sov: Cov txheej txheem siv rau cov ntu uas "tsim kub, nrog lossis tsis muaj kev kho cua sov tom qab, lossis tsim txias nrog kev kho cua sov tom qab" saum toj 580℃kom ua tiav cov khoom siv tshwj xeeb sib npaug rau cov khoom kub - tsim .
- Cov Khoom Muag Khoom: Nws siv rau seamless, hluav taws xob welded, thiab submerged arc welded steel qauv hollow seem ntawm ncig, square, rectangular, los yog elliptical daim ntawv.
Qhov siab - qhov kub thiab txias no ua rau cov khoom lag luam nrog:
Cov khoom siv sib xwsthoob plaws ntawm tus ntoo khaub lig-section.
Relied residual stresseslos ntawm kev tsim khoom.
Txhim kho toughness thiab ductility.
3 Hom Hlau Qib thiab Mechanical Properties
EN 10210-1 suav nrog ntau yam uas tsis yog- alloy thiab nplua-grain steel qib. Lub npe system qhia cov khoom tseem ceeb. Piv txwv li, hauvS355J2H:
S:Cov qauv hlau
355:Yam tsawg kawg nkaus tawm lub zog hauv MPa (355 MPa)
J2:Kev cuam tshuam toughness (kuaj ntawm -20 degree)
H:Hollow seem
Cov qib siab hauv EN 10210 suav nrog S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, thiab S355K2H.
4 Cov ntawv thov ib txwm
Kub-Cov ntu ua tiav feem ntau tau teev tseg rau cov ntawv thov kev ntxhov siab heev thiab nyob rau hauv ib puag ncig uas yuav tsum tau muaj zog dua.
- Heavy- lub luag haujlwm tsim cov kab thiab thav duab
- Offshore thiab marine qauv
- Kev tsim kho choj
- Heavy industrial nroj tsuag thiab machinery
TS EN 10219: Txias -Tsim Cov Qauv Hollow Sections
1 Txheej txheem cej luam thiab Scope
TS EN 10219qhia cov kev cai rautxias- ua welded structural hollow seemntawm tsis yog- alloy thiab nplua- cov hlau hlau . "Cold-formed" txhais tau hais tias cov txheej txheem shaping tshwm sim ntawm lossis ze ntawm chav tsev kub, uas tso cai rau kev tswj kom nruj dua.
Zoo li EN 10210, tus qauv no tau muab faib ua ntu:
TS EN 10219-1:Deals nrogcov txheej txheem kev xa khoom .
TS EN 10219-2:Txhaiskam rau ua, qhov ntev, thiab cov khoom seem .
2 Cov txheej txheem tsim khoom
Cov qauv no suav nrog cov seem hollow uas tau tsim nyob rau hauv qhov chaw sov (chaw) kub.
- Txheej txheem txheej txheem: Cov seem yogtxias - tsim, lub ntsiab lus steel sawb los yog phaj yog zoo li tus nyob rau hauv ib ncig, square, los yog rectangular daim ntawv tsis muaj daim ntawv thov ntawm tshav kub thaum lub sij hawm tsim theem.
- Vuam thiab kev kho cua sov: Cov txheej txheem cuam tshuam nrog hluav taws xob vuam (feem ntau siab - zaus vuam) lossis submerged arc vuam. Qhov txias- cov khoom tsim yog feem ntautsis muaj kev kho cua sov tom qabLwm yam tshaj li kev kho cua sov tshwj xeeb siv rau lub vuam seam nws tus kheej.
3 Hom Hlau Qib thiab Mechanical Properties
EN 10219-1 suav nrog cov qib steel zoo sib xws rau EN 10210, xws li S235J0H, S235J2H, S275J0H, S275J2H, S355J0H, S355J2H, thiab S355K2H. Cov khoom siv kho tshuab, xws li qhov tsawg kawg nkaus tawm los thiab lub zog tensile, yog piv rau lawv cov khoom kub ua tiav rau tib qib kev xaiv.
4 Cov ntawv thov ib txwm
Txias- cov seem tsim tau dav siv qhov ntev qhov tseeb, qhov ua tiav zoo, thiab tus nqi- kev ua tau zoo yog qhov tseem ceeb.
- Tsev ncej thiab trusses
- Architectural thiab cov qauv zoo nkauj(piv txwv li, iav kab hlau rhuav phab ntsa)
- Stadiums thiab loj arenas
- Machinery thiab khoom thav duab
- General structural lub hom phiaj hauv kev tsim kho
Qhov sib txawv tseem ceeb ntawm EN 10210 thiab EN 10219
Kev xaiv ntawm qhov kub-ua tiav thiab txias- ua ntu ntu yog nyob ntawm cov kev cai tshwj xeeb ntawm koj qhov project. Cov lus hauv qab no qhia txog cov ntsiab lus sib txawv.
| Feature | EN 10210 (Kub-Tiav) | EN 10219 (Cold-Tsim) |
|---|---|---|
| Kev tsim khoom | Tsim thiab welded ntawm qhov kub thiab txias. | Tsim thiab welded ntawm chav tsev kub. |
| Rooj Radii | Loj dua, ntau qhov sib npaug. | Me me, ntse dua kaum. |
| Mechanical Properties | Ntau yam khoom zoo sib xws; residual stresses yog relieved. | Txias-kev ua haujlwm tuaj yeem ua rau muaj zog tab sis tuaj yeem ua rau muaj kev ntxhov siab ntxiv. |
| Dimensional Tolerances | Feem ntau dav dav. | Tighter tolerances thiab tswj zoo dua. |
| Nto tiav | Mill scale yog tam sim no. | Smother, zoo ib yam tag. |
| Tus nqi -Kev ua tau zoo | Feem ntau tus nqi siab dua rau cov qib txheem. | Feem ntau pheej yig dua rau cov qauv loj thiab kev siv. |
| Qhov Tseem Ceeb Daim Ntawv Thov Kev Pom Zoo | Heavy-lub luag haujlwm, siab- kev ntxhov siab, thiab kev siv tseem ceeb. | General structural, architectural, thiab nqi-sensitive applications. |
Yog vim li cas tus txheej txheem Manufacturing tseem ceeb:
Qhov kub- txheej txheem ua haujlwm ntawm EN 10210 ua rau cov khoom lag luam uas feem ntau ua kom nruj dua thiab muaj kev ntxhov siab tsawg dua, ua rau nws tsim nyog rau kev thauj khoom hnyav thiab ib puag ncig hnyav. Qhov txias- txheej txheem tsim ntawm EN 10219 tso cai rau kev ua tau zoo heev thiab ua tau zoo heev rau kev tsim khoom loj ntawm cov qauv ntu.
Xaus
Ob leegEN 10210 (kub-ua tiav)thiabEN 10219 (txias- tsim)hollow seem yog ncej ntawm European structural steel lag luam. Tsis muaj "zoo dua" tus qauv, tsuas yog "zoo dua" ib qho rau ib daim ntawv thov.
- XaivTS EN 10210thaum koj qhov project cuam tshuam nrog siab -kev ntxhov siab, cov txheej txheem tseem ceeb, kev thauj khoom tsis zoo, lossis ib puag ncig uas muaj kev cuam tshuam zoo tshaj plaws thiab kev ua haujlwm tsis zoo - sib tham tau.
- XaivTS EN 10219rau kev tsim kho dav dav, kev siv vaj tse, thiab cov haujlwm uas qhov ntsuas qhov tseeb, kev ua kom zoo nkauj, thiab tus nqi -kev ua tau zoo yog thawj tus tsav tsheb.
Raws li cov kws tshaj lij steel yeeb nkab tsim khoom, peb xyuas kom meej tias tag nrho peb cov khoom nruj me ntsis ua raws li cov qauv EN, muab kev ntseeg siab, siab - cov ntaub ntawv ua tau zoo rau koj cov haujlwm thoob ntiaj teb.
Cov lus nug nquag nug (Q&A)
Q1: Tus qauv twg muaj zog dua?
A: Lub zog yog feem ntau txhais los ntawm tusqib steel(piv txwv li, S355 muaj zog dua S235), tsis yog tus qauv nws tus kheej. Rau tib qib steel, qhov tsawg kawg nkaus yield thiab tensile lub zog qhov tseem ceeb yog piv rau ob qho tib si EN 10210 thiab EN 10219. Txawm li cas los xij, qhov txias- txheej txheem tsim tuaj yeem ua rau muaj kev nce hauv cheeb tsam ntawm cov khoom muaj zog nyob rau hauv cov ces kaum ntawm EN 10219 ntu.
Q2: Puas yog qhov ntev rau tib lub npe loj (piv txwv li, 100x100x5) zoo tib yam hauv ob qho tib si qauv?
A: Thaum zoo sib xws, lubqhov tolerancestxawv. TS EN 10219, ua kom txias- tsim, feem ntau muaj kev tiv thaiv nruj dua rau sab nraud qhov ntev thiab phab ntsa tuab. Qhov sib txawv tshaj plaws yog qhov loj dua sab nraud thiab sab hauv kaum sab xis hauv EN 10210 ntu. Ib txwm sab laj nrog Tshooj 2 ntawm cov qauv kev sib raug zoo rau kev ua siab ntev.
Q3: Dab tsi yog qhov tseem ceeb ntawm 'J2', 'J0', thiab 'H' hauv lub npe qib steel?
A: Qhov 'J2' thiab 'J0' qhia qhovcuam tshuam toughnessntsuas kub.
J0:Charpy V-qhov cuam tshuam ntawm qhov ntsuas ntawm 0℃.
J2:Kuaj ntawm -20 degree, ua kom haum rau cov huab cua txias.
H:Tsuas yog sawv cev rau "Hollow Section."
