Yog tias koj tau zaum hla tus thawj tswj hwm lossis tus kws tshaj lij thiab saib lawv tig ntawm EN 10210 thiab EN 10219 ntawm daim ntawv spec, koj paub qhov zoo. Cov duab zoo ib yam. Cov npe qib qub. Cov nqi sib xws. Yog li dab tsi yog qhov txawv?
Cov lus teb luv luv:nws yog txhua yam hais txog yuav ua li cas cov hlau tsim.Ib qho yog kub - tiav. Lwm qhov yog txias - tsim. Thiab qhov sib txawv ntawm ib qho ripples los ntawm txhua yam - txhua yam khoom, qhov tseeb qhov tseeb, qhov seem ntawm kev ntxhov siab, tawv, thiab qhov kawg, uas ua haujlwm txhua tus qauv zoo tshaj plaws rau.
Phau ntawv qhia no rhuav tshem ob tus qauv, cov qhab nia muaj nyob rau hauv txhua qhov, thiab muab lub tswv yim rau koj xaiv qhov yog. Tsis muaj fluff. Tsuas yog cov ntaub ntawv koj xav tau los txiav txim siab.
EN 10210 - Kub-Tiav cov qauv Hollow seem
EN 10210 npogkub -ua tiavseamless, hluav taws xob welded, thiab submerged arc welded structural hollow seem nyob rau hauv ncig, square, rectangular, thiab elliptical daim ntawv. Cov hlau yog tsim los ntawm qhov kub thiab txias - feem ntau siab dua 580℃- nrog lossis tsis muaj kev kho cua sov tom qab.
Qhov ntawd txhais li cas hauv kev xyaum?
High -kub tsim txheej txheemrelieves kev ntxhov siab sab hauvthiab tsim ibuniform, recrystallized grain qauvthoob plaws ntawm tus ntoo khaub lig-section. Qhov tshwm sim yog ib yam khoom uas muaj toughness zoo, zoo ib yam khoom siv, thiab kev ua tau zoo dua nyob rau hauv dynamic loads thiab qis - kub.
Tej kev siv:Cov choj, cov chaw tawm ntug dej hiav txwv, siab- cov tsev nce siab, cov chaw siv hluav taws xob, thiab txhua qhov kev tsim qauv uas yuav tsum muaj kev nyab xeeb siab.
Common steel qib:S235JRH, S275J2H, S355J2H.
TS EN 10219 - Txias -Tsim Welded Cov Qauv Hollow Sections
EN 10219 npogtxias- ua weldedstructural hollow seem ntawm ncig, square, rectangular, thiab elliptical daim ntawv. Cov hlau yog zoo li tus ntawm los yog nyob ze ntawm chav tsev kub siv txias dabtsi yog khoov rollers, ces welded - feem ntau yog high - zaus vuam (HFW) los yog submerged arc vuam (SAW).
Txias-kev tsim muaj qee qhov zoo meej. Cov txheej txheem xaqhov siab qhov tseeb, qhov chaw du, thiab cov ntoo khaub lig sib xws - ntu. Kev tsim khoom sai dua thiab ua haujlwm tau zoo dua, uas txhais tau tias tus nqi qis dua.
Tab sis muaj kev lag luam tawm - tawm. Txias- uaqhia txog cov kev ntxhov siab uas seemrau hauv cov khoom. Thiab vim tias tsis muaj kev kho cua sov tom qab (tshwj tsis yog cov kab vuam), cov kev ntxhov siab nyob hauv cov khoom tiav. Toughness thiab qis- qhov kub thiab txias kev ua haujlwm feem ntau qis dua qhov kub- tiav lawm.
Tej kev siv:Factories, lub teeb steel qauv, scaffolding, guardrails, ua liaj ua teb machinery, thiab dav siv nyob rau hauv uas tus nqi efficiency yog qhov tseem ceeb.
Common steel qib:S235JRH, S275J0H, S355J2H.
Kev sib piv
| Feature | EN 10210 (Kub-Tiav) | EN 10219 (Cold-Formed Welded) |
|---|---|---|
| Yield zog (S355) | Ntau dua lossis sib npaug li 355 MPa | Ntau dua lossis sib npaug li 345 MPa |
| Tensile zog (S355) | 470-630 MPa | 450-610 MPa |
| Ua siab ntev | Tighter (± 6% phab ntsa thickness) | Looser (± 10% phab ntsa thickness) |
| Residual Stress | Tsawg - relieved los ntawm kub sib sau | Tam sim no - los ntawm kev ua haujlwm txias |
| Toughness | Zoo heev; haum rau qis -temp thiab cuam tshuam loads | Zoo, tab sis qis dua kub - tiav |
| Nto tiav | Rougher mill scale (kub- dov saib) | Smoother, huv si saum npoo |
| Nqi | Siab dua | Kev lag luam ntau dua |
| Kev siv yam | Heavy-duty, siab-kev nyab xeeb, dynamic loads | Cov txheej txheem dav dav, tus nqi - cov haujlwm tseem ceeb |
Nkag siab cov Qib Steel
Cov npe qib yuav tsis meej pem, tshwj xeeb tshaj yog vimtib lub npe qib txhais tau tias qee yam txawv raws li txhua tus qauv.
Raws li EN 10025 qhov system npe:
S= Cov qauv hlau
235 / 275 / 355= Yam tsawg kawg nkaus tawm lub zog hauv MPa (rau thickness txog li 16 hli)
JR= Kev ntsuas qhov ntsuas kub ntawm chav tsev (20 degree)
J0= Kev ntsuas cuam tshuam ntawm 0 degree
J2= Kev ntsuas cuam tshuam ntawm -20 degree
H= Ntu ntu
Yog liS355J2Htxhais tau tias: steel qauv, 355 MPa yam tsawg kawg nkaus tawm los, cuam tshuam - kuaj ntawm -20 degree, hollow seem.
Nov yog qhov catch:Hauv EN 10210, qib hais txog qhovsteel nyob rau hauv lub tiav hollow seem. Hauv EN 10219, qib yog hais txog qhovsteel khoom nojsiv los ua kom txias -. Qhov txias- txheej txheem tsim hloov kho cov hlau, yog li cov khoom tiav cov khoom tsis zoo ib yam rau qib feedstock.
Yog vim li cas nws tseem ceeb heev rauqhia ob tus lej tus lej thiab qib- Piv txwv li, "EN 10210 S355J2H" lossis "EN 10219 S355J2H." Lawv tsis yog interchangeable.
| Qib | Tawm tswv yim (MPa) | Kev siv yam |
|---|---|---|
| S235JR / S235JRH | Ntau dua lossis sib npaug rau 235 | Cov qauv teeb, kev tsim kho dav dav, tus nqi -sensitive tej yaam num |
| S275J0H / S275J2H | Ntau dua lossis sib npaug li 275 | Nruab nrab-cov haujlwm ntas, txuas hniav, cov khoom lag luam |
| S355J2H / S355JR | Ntau dua lossis sib npaug rau 355 | Hnyav loads, siab -cov tsev nce siab, offshore, tseem ceeb infrastructure |
Yuav xaiv li cas
Nov yog cov txheej txheem yooj yim los ua haujlwm thaum koj txiav txim siab ntawm EN 10210 thiab EN 10219.
Kauj Ruam 1 - Lub sijhawm thauj khoom yog dab tsi?
Heavy dynamic loads, cuam tshuam, los yog qaug zog→ EN 10210. Qhov kub - cov txheej txheem tiav ua rau koj zoo dua toughness thiab zoo ib yam li txhua yam khoom.
Static los yog lub teeb - mus rau - nruab nrab loads→ EN 10219 feem ntau yog txaus.
Kauj Ruam 2 – Qhov kev pabcuam kub yog dab tsi?
Tsawg kub los yog huab cua txias→ EN 10210. Cov qauv nplej zoo li qub thiab cov kev ntxhov siab tsawg tsawg txhais tau tias kev ua tau zoo dua thaum cov mercury poob.
Chav kub los yog nruab nrab tej yam kev mob→ EN 10219 ua haujlwm zoo.
Kauj Ruam 3 – Qhov tseem ceeb npaum li cas yog qhov kam rau ua?
Precision fabrication, automated los ua ke, nruj haum-ups→ EN 10219
Standard structural ua hauj lwm qhov twg me me deviations yog txais→ EN 10210 yog qhov zoo.
Kauj Ruam 4 – Koj pob nyiaj siv yog dab tsi?
Tus nqi - qhov project rhiab heev, ntim loj→ EN 10219. Cov txheej txheem tsim khoom yooj yim ua rau nws siv nyiaj ntau dua.
Kev ua tau zoo yog qhov tseem ceeb, pob nyiaj siv yog qhov thib ob→ EN 10210.
Kauj Ruam 5 - Puas yog qhov project xav tau CE cim rau European lag luam?
Ob leeg EN 10210 thiab EN 10219 yog cov qauv kev sib haum xeeb raws li EU Kev Tswj Xyuas Cov Khoom Siv Hluav Taws Xob (CPR) thiab yog cov txheej txheem rau kev kos npe CE. Ob tus qauv tuaj yeem coj koj mus rau ntawd - tab sis koj yuav tsum qhia kom raug.
Ib txoj cai yooj yim ntawm tus ntiv tes xoo:
Cov choj, ntug dej hiav txwv, siab -nce, tseem ceeb infrastructure→ EN 10210
Cov vaj tse dav dav, cov qauv teeb, tshuab, nqi- tsav cov haujlwm→ EN 10219
Thaum tsis ntseeg→ Pib nrog EN 10210 thiab cia koj tus engineer qhia rau koj yog tias koj tuaj yeem txo qis. Nws yooj yim dua rau spec down dua los piav qhia vim li cas koj tsis spec up.
Q&A
Q1: Kuv puas tuaj yeem hloov EN 10219 rau EN 10210 yog tias lub npe qib zoo ib yam?
A:Tsis yog. Tib lub npe - piv txwv li, S355J2H - tsis txhais hais tias tib yam ntawm ob tus qauv. EN 10210 hais txog cov khoom tiav ntawm seem; EN 10219 yog hais txog cov khoom noj khoom haus. Qhov txias- txheej txheem tsim hloov pauv metallurgy. Nco ntsoov qhia tag nrho cov qauv + qib ua ke.
Q2: Puas yog EN 10210 ib txwm muaj zog dua EN 10219 ntawm tib qib?
A:Yog, me ntsis. Rau S355, EN 10210 muab rau koj 355 MPa yam tsawg kawg nkaus tawm los vs . 345 MPa rau EN 10219. Qhov txawv tsis loj, tab sis nyob rau hauv siab -load daim ntawv thov, txhua txhua megapascal suav.
Q3: Puas yog EN 10210 tsuas yog tuaj raws li seamless?
A:No. EN 10210 npogseamless, hluav taws xob welded, thiab submerged arc weldedkub- ntu tiav. Qhov "kub-finished" yog hais txog cov txheej txheem tsim, tsis muaj los yog tsis muaj qhov vuam.
EN 10210 thiab EN 10219 ob leeg tsim cov qauv hollow seem uas zoo sib xws rau sab nraud. Tab sis hauv qab ntawm qhov chaw, lawv yog cov khoom sib txawv.
EN 10210 (kub-ua tiav)muab koj zoo dua toughness, qis residual kev nyuaj siab, thiab zoo ib yam li txhua yam khoom. Nws yog qhov kev xaiv rau cov choj, cov ntug dej hiav txwv, cov tsev siab -nce, thiab txhua qhov haujlwm uas muaj kev nyab xeeb thiab kev ua tau zoo yog qhov tseem ceeb.
EN 10219 (txias- ua welded)muab rau koj nruj dua qhov tseeb, smoother nto, thiab tus nqi qis dua. Nws yog qhov kev xaiv rau kev tsim kho dav dav, cov qauv teeb pom kev zoo, thiab tus nqi- cov haujlwm tseem ceeb.
Tus yuam sij yog txuam tus qauv rau koj cov kev xav tau tiag tiag - tsis dhau - qhia, thiab tsis nyob hauv - qhia. Thiab ib txwm, nco ntsoov qhia ob tus qauv thiab qib.
Cov lus nug?Hu rau peb pab neeg ua haujlwm LEFIN STEEL. Peb muab EN 10210 thiab EN 10219 hollow seem hauv S235, S275, thiab S355 - thiab peb yuav pab koj xaiv qhov tsim nyog rau koj qhov project.
