Dab tsi yog Qhov Zoo ntawm Kev Siv S275J0 Steel hauv Kev Tsim Qauv?
S275J0yog qhov kev xaiv zoo tshaj plaws hauv kev tsim qauv, tuav lub hauv paus tseem ceeb ntawm cov qib S235 thiab qib siab dua -S355 tsev neeg. Nws qhov zoo yog ob qho tib si technical thiab economic.
Ntawm no yog ib qho kev nthuav dav ntawm qhov zoo ntawm kev siv S275J0 steel hauv kev tsim qauv:
Core Advantage: Tus Neeg Ua Haujlwm Zoo
S275J0 muaj kev sib xyaw tshwj xeeb ntawm kev ua kom muaj zog ntau dua S235 thiab lav qis- qhov kub thiab txias, ua rau nws xaiv ntau yam thiab txhim khu kev qha rau ntau hom kev siv.
Qhov Zoo Tshaj Plaws
1. Txhim kho lub zog-rau- Tus nqi piv
Lub zog muaj zog ntau dua: Nrog rau qhov tsawg kawg nkaus tawm lub zog ntawm 275 MPa (rau thickness Tsawg dua los yog sib npaug rau 16mm), nws muab lub zog nce ~ 17% tshaj S235 (235 MPa). Qhov no tso cai rau:
Kev txo qis qis hauv cov tswv cuab piv rau S235.
Cov ntoo khaub lig me me- ntu rau cov tswv cuab thib ob, ua rau txuag cov khoom siv thiab cov qauv siv dua.
Tus nqi- Txhim kho kom zoo: Nws feem ntau tsuas yog kim kim tshaj S235JR/J0, tab sis nws lub zog muaj zog tuaj yeem ua rau tag nrho cov nqi txuag hauv cov khoom tonnage, ua rau nws muaj txiaj ntsig kev hloov kho qhov twg S235 tsuas yog me ntsis undersized.
2. Guaranteed Tsawg-Tsub Toughness (Qhov "J0" Advantage)
Impact Test: Charpy V-notch tested at 0℃.
Tsawg Zog: 27 Joules (tib yam yuav tsum tau ua S235J0 thiab S355J0).
Cov txiaj ntsig: Qhov no ua rau nws tsim nyog rau cov qauv sab nraum zoov, txuas hniav, thiab cov ntsiab lus nthuav tawm nyob rau hauv qhov kub thiab txias huab cua qhov twg qhov kev pabcuam kub tuaj yeem poob mus rau khov. Nws muab cov txiaj ntsig kev nyab xeeb tseem ceeb tiv thaiv cov pob txha tawg, uas tus qauv S275JR (kuaj ntawm +20 degree) tsis muaj rau qhov chaw txias.
3. Zoo heev Weldability thiab Fabrication
S275J0 muaj tus nqi qis Carbon Equivalent Value (CEV), zoo ib yam li S235 qib. Qhov no ua kom:
Yooj yim vuam siv txhua txoj hauv kev (SMAW, MAG / MIG, SAW).
Feem ntau, tsis muaj pre{0}} cua sov yuav tsum tau rau nyias mus rau nruab nrab thicknesses nyob rau hauv ib txwm tej yam kev mob.
Kev coj tus cwj pwm zoo hauv tshav kub- thaj tsam cuam tshuam (HAZ), txo qhov kev pheej hmoo ntawm kev tsim khoom- cuam tshuam cov kab nrib pleb.
Qhov no txhais tau tias txo cov nqi tsim khoom, cov txheej txheem tsim kho yooj yim dua, thiab txhim khu kev qha kev sib txuas.
4. Cov khoom muaj thiab Standardization
Raws li tus qauv qib hauv EN 10025-2, S275J0 tau dav tsim thiab ntim khoom los ntawm cov hlau zeb thiab cov xa tawm thoob plaws Tebchaws Europe thiab lwm thaj chaw ua raws li cov qauv no.
Nws zoo -cov cuab yeej nkag siab tau tso cai rau cov lus qhia ncaj qha hauv cov qauv tsim (xws li Eurocode 3) thiab kev pom zoo yooj yim los ntawm cov kws tsim khoom thiab cov tswj hwm.
5. Qhov zoo tshaj plaws rau kev siv cov qauv tsim tshwj xeeb
Nws qhov nyiaj tshuav ua rau nws qhov kev nyiam lossis kev xaiv ua ntej rau ntau qhov xwm txheej:
Secondary Structural Members: Qhov twg S235 tsis muaj zog heev tab sis lub zog tag nrho ntawm S355 tsis tas yuav tsum tau (xws li, purlins, sab rails, bracing cov tswv cuab hauv cov huab cua txias).
Hybrid Structures: Siv S355 rau thawj kab teeb / kab thiab S275J0 rau cov tswv cuab theem nrab thiab kev sib txuas yog qhov ua tau zoo thiab siv tau zoo.
Txuas hniav thiab Infrastructure: Rau cov spans me me los yog cov khoom uas qhov 0℃toughness yog ib txoj cai yuav tsum tau thiab lub zog 275 MPa yog txaus.
Lub tsev lub hnab ntawv thiab Exposed Architecture: Rau façades, canopies, thiab cov txheej txheem nthuav tawm nyob rau hauv cov huab cua txias qhov twg ob qho tib si zoo nkauj (yuav tsum tau me me seem) thiab cov khoom cia siab rau ntawm qhov kub thiab txias yog qhov tseem ceeb.
Comparative Advantage Summary
| Qib | Qhov tseem ceeb Advantage | Qhov zoo tshaj plaws rau ... |
|---|---|---|
| S235J0 | Tus nqi qis tshaj nrog 0℃toughness. | Cov ntawv thov uas txo tus nqi yog qhov tseem ceeb thiab lub zog tsis yog tus tsav tsheb tseem ceeb (xws li, kev txhawb nqa lub teeb, tsis yog - qhov tseem ceeb bracing). |
| S275J0 | Qhov zoo tshaj plaws sib npaug ntawm lub zog, toughness, thiab tus nqi. | Qib "mus-rau" rau cov khoom siv dav dav uas xav tau 0℃toughness thiab kev ua tau zoo ntawm S235. |
| S355J0 | Lub zog siab tshaj plaws nrog 0℃toughness. | Kev thauj khoom tseem ceeb-cov tswv cuab (nqaj, kab) qhov ua kom lub zog siab tshaj plaws - rau - qhov hnyav piv yog qhov tseem ceeb rau cov khoom loj lossis cov khoom hnyav. |
Xaus
Nws yog qhov kev xaiv ntse, kev lag luam rau feem ntau ntawm cov khoom siv dav dav hauv cov tsev thiab cov vaj tse nyob hauv cov cheeb tsam nrog lub caij ntuj no txias, qhov twg ob qho tib si kev ntseeg tau ntawm cov khoom siv thiab kev tsim qauv zoo. Nws ua tau zoo kaw qhov sib txawv ntawm qhov yooj yim thiab siab - lub zog steels rau kev tsim kho tseem ceeb.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau cov qauv tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
