Txheej txheem cej luam
EN 10219 yog tus qauv European uas qhia txog cov txheej txheem kev xa khoom rautxias- ua welded structural hollow seemua los ntawm cov pa roj carbon thiab tsis yog{0}} hlau alloys. Qhov tseem ceeb, nws npog cov yeeb nkab steel (thiab lwm yam hollow seem xws li square thiab rectangular tubes) siv feem ntau hauv kev siv cov txheej txheem, tsis yog rau lub siab ntim lossis dej thauj.
Tus qauv yog European sib npaug ntawm cov dav siv ASTM A500 hauv Tebchaws Meskas.
Cov yam ntxwv tseem ceeb ntawm EN 10219 Pipes
Kev tsim khoom:Cov kav dej yogtxias - tsim(ntawm ambient kub) thiabwelded. Cov txheej txheem no suav nrog:
Coiling thiab uncoiling steel strip.
Txias- dov lossis txias- khoov lub sawb mus rau hauv lub voj voog, square, lossis duab plaub.
Vuam cov seams siv siab - zaus hluav taws xob tsis kam vuam (HFW) lossis cov txheej txheem zoo sib xws.
Sizing thiab straightening cov khoom kawg.
Daim Ntawv Thov Tseem Ceeb: Kev siv tus qauv. Cov kav dej no tau tsim los siv los ua cov khoom thauj -cov kabmob hauv kev tsim kho thiab engineering, xws li:
Tsev ncej thiab kab
Trusses thiab qhov chaw thav duab
Stadiums thiab loj arenas
Cov ntsiab lus choj (tsis yog-thawj)
Machinery thiab khoom thav duab
Architectural thiab cov qauv zoo nkauj
Cov Qauv Txheej Txheem: EN 10219-1 thiab EN 10219-2
Tus qauv muab faib ua ob qhov tseem ceeb:
TS EN 10219-1 Cov txheej txheem xa khoom
Qhov no suav nrog cov kev cai dav dav, suav nrog cov ntaub ntawv xaj, txheej txheem tsim khoom, tshuaj xyuas, thiab cov txheej txheem kuaj.
TS EN 10219-2: Kev kam rau siab, qhov ntev, thiab cov khoom seem
Qhov no muab cov kev txwv tshwj xeeb ntawm qhov ntev (sab nraud txoj kab uas hla, phab ntsa thickness, ntev, ncaj), loj, thiab ntoo khaub lig-sectional zog (lub sij hawm ntawm inertia, seem modulus, thiab lwm yam) rau lub voj voog, square, thiab lub hollow seem.
Common Steel Qib
TS EN 10219 Cov kav dej muaj nyob hauv ntau qib steel, uas txhais tau tias lawv cov khoom siv kho tshuab (yield zog, tensile zog, thiab elongation). Cov qib uas feem ntau yog:
| Qib Steel | Yam tsawg kawg Yield Strength (ReH) | Yam tsawg kawg Tensile Strength (Rm) | Daim ntawv thov |
|---|---|---|---|
| S235J0H | 235 MPa rau | 360 - 510 MPa | Lub hom phiaj dav dav, weldability zoo. |
| S235J2H | 235 MPa rau | 360 - 510 MPa | Txhim kho kev cuam tshuam toughness ntawm qis kub. |
| S275J0H | 275 MPa rau | 430 - 560 MPa | Rau siab dua load- bearing yuav tsum. |
| S275J2H | 275 MPa rau | 430 - 560 MPa | Lub zog siab dua nrog qhov zoo qis -kub toughness. |
| S355J0H | 355 MPa rau | 510 - 650 MPa | High -cov ntaub ntawv muaj zog. |
| S355J2H | 355 MPa rau | 510 - 650 MPa | Siab zog nrog txhim kho kev cuam tshuam toughness. |
| S355K2H | 355 MPa rau | 510 - 650 MPa | Zoo ib yam li J2H nrog guaranteed yam tsawg kawg nkaus lub zog. |
Nkag siab txog Qib Qib (piv txwv li, S355J2H):
S: Steel Qauv
355Yam tsawg kawg yield zog hauv MPa (355 MPa)
J2/J0/K2: Impact toughness designation.
J0: Kev cuam tshuam kuaj ntawm 0 degree
J2: Kev cuam tshuam ntawm -20℃(zoo dua rau cov huab cua txias)
K2: Kev cuam tshuam los ntawm -20℃nrog ntau dua absorbed zog
H: Hollow Section
Qhov zoo ntawm EN 10219 Pipes
Lub zog zoo heev - rau - Qhov hnyav piv:Lub zog siab nrog qhov hnyav hnyav, ua rau cov qauv siv tau zoo dua.
Consistent Dimensions thiab Tolerances:Qhov txias- txheej txheem tsim tso cai rau kev tswj kom nruj heev thiab ua kom tiav qhov chaw zoo.
Aesthetic Appeal:huv si, ntse ces kaum ntawm cov duab plaub thiab square yog nyiam rau kev siv architectural.
Yooj yim ntawm Fabrication:Yooj yim rau txiav, weld, thiab laum.
Tus nqi -zoo:Feem ntau siv nyiaj ntau dua li kub- cov seem tiav rau cov qauv thiab cov ntawv thov.
EN 10219 vs EN 10210: Qhov txawv ntawm qhov tseem ceeb
Qhov no yog qhov sib txawv tseem ceeb hauv cov txheej txheem European:
| Feature | EN 10219 (Cold-Tsim) | EN 10210 (Kub-Tsim) |
|---|---|---|
| Kev tsim khoom | Tsim thiab welded ntawm chav tsev kub. | Tsim thiab welded ntawm qhov kub thiab txias (kub- ua haujlwm). |
| Rooj Radii | Me me, ntse dua kaum. | Loj, ntau qhov sib npaug (vim cov txheej txheem kub). |
| Mechanical Properties | Cov cuab yeej ua tiav los ntawmua haujlwm txias. Qhov no tuaj yeem ua rau muaj zog ntau dua tab sis yuav xav tau kev ntxhov siab rau qee yam kev siv. | Cov khoom muaj ntau homogeneous thoob plaws ntawm tus ntoo khaub lig- ntu vim qhov kub- ua haujlwm thiab tswj kom txias. |
| Weldability | Feem ntau zoo, tab sis qhov txias - thaj chaw ua haujlwm ze ntawm qhov vuam tuaj yeem muaj cov khoom sib txawv (Kub-Tebchaws cuam tshuam). | Weldability zoo heev nrog cov qauv zoo dua qub. |
| Qhov Loj | Feem ntau muaj nyob rau hauv ntau yam ntawm thinner - ntu phab ntsa. | Feem ntau siv rau qhov loj, tuab dua - phab ntsa. |
| Nqi | Feem ntau tus nqi ntau dua - zoo. | Yuav kim dua vim yog lub zog- cov txheej txheem hnyav. |
Kev xaiv ntawm lawv:Rau feem ntau cov qauv siv cov qauv, EN 10219 yog qhov tsim nyog thiab raug nqi - zoo. EN 10210 feem ntau tau teev tseg rau cov ntawv thov uas yuav tsum tau ua kom muaj zog, tshwj xeeb tshaj yog nyob rau thaj tsam seismic, qis - qhov kub thiab txias, lossis qhov twg lub kaum sab xis loj dua yog cov qauv lossis qhov xav tau zoo nkauj.
Cov ntsiab lus
TS EN 10219 carbon steel yeeb nkab yog siab -zoo, txias- tsim cov qauv hollow seem txhais los ntawm tus qauv European meej. Nws yog qhov mus- rau kev xaiv rau ntau yam kev tsim kho thiab engineering tej yaam num vim nws lub zog zoo heev, zoo ib yam, nruj tolerances, thiab nqi-effectiveness. Thaum qhia meej, nws yog ib qho tseem ceeb uas yuav tsum xaiv cov qib steel kom raug (piv txwv li, S355J2H) raws li cov cuab yeej cuab tam thiab ib puag ncig ntawm qhov project.
