EN 10219 S275J0H thiab S275J2Hyog cov khoom siv hollow uas tau tsim los ntawm cov hlau tsis sib xyaw raws li EN 10219.
Lawv ob leeg muaj lub zog tsawg kawg nkaus ntawm 275MPa (phab ntsa tuab ≤16mm). Qhov sib txawv tseem ceeb yog nyob rau hauv cov yam ntxwv cuam tshuam: S275J0H muaj lub zog cuam tshuam tsawg kawg nkaus ntawm 27 J ntawm 0 ° C, thaum S275J2H muaj lub zog cuam tshuam tsawg kawg nkaus ntawm 27 J ntawm -20 ° C.
Haum rau cov ntawv thov hauv cov tsev thiab cov qauv engineering uas muaj cov khoom hnyav dua.
BS EN 10219 yog European Standard EN 10219 uas UK tau txais yuav.
Phab ntsa tuab ≤40mm, Sab nraud txoj kab uas hla ≤2500mm.
CFCHS yog lub npe luv rau Cold-Formed Circular Hollow Section.
Tus qauv EN 10219 npog ntau yam duab hlau hollow, suav nrog puag ncig, square, rectangular, thiab oval, kom haum rau ntau yam kev siv sib txawv.
Botop Hlautshwj xeeb hauv kev muab cov kav hlau hollow seem hauv ntau qhov ntau thiab tsawg thiab cov txheej txheem kom haum rau ntau yam kev siv hauv kev lag luam, kom ntseeg tau tias cov kev xav tau tshwj xeeb ntawm peb cov neeg siv khoom tuaj yeem ua tau raws li.
Txij li thaum nws tau tsim tsa xyoo 2014,Botop Hlautau dhau los ua tus thawj coj ntawm cov yeeb nkab hlau carbon hauv Northern China, paub txog kev pabcuam zoo heev, cov khoom lag luam zoo, thiab cov kev daws teeb meem dav dav.
Lub tuam txhab muaj ntau yam kav hlau carbon thiab cov khoom lag luam cuam tshuam, suav nrogSMLS, ERW, LSAW, thiabSSAWcov yeeb nkab hlau, nrog rau cov khoom siv yeeb nkab thiab cov flanges tiav. Nws cov khoom tshwj xeeb kuj suav nrog cov hlau alloys zoo thiab cov hlau stainless austenitic, tsim los ua kom tau raws li qhov xav tau ntawm ntau yam haujlwm pipeline.
Peb tos ntsoov yuav tsim kom muaj kev sib raug zoo nrog koj thiab tsim kom muaj kev yeej-yeej yav tom ntej ua ke.
Cov hlau nyoos rau kev tsim cov ntu hollow txias yog deoxidized thiab yuav tsum ua tau raws li cov xwm txheej xa khoom tshwj xeeb.
Cov kev cai tseem ceeb rau S275J0H thiab S275J2H yogFF(Cov hlau uas tua tag nrho uas muaj cov khoom sib txuas nrog nitrogen txaus kom sib txuas nrog nitrogen uas muaj (piv txwv li tsawg kawg 0,020% tag nrho Al lossis 0,015% soluble Al)).
Cov xwm txheej xa khoom: Dov los yog normalized / normalized dov (N) rau JR, J0, J2, thiab K2 steels.
Cov kav hlau rau EN 10219 tuaj yeem tsim los ntawm ob qho tib siERW(kev vuam hluav taws xob tsis kam) thiabSAW(submerged arc welding) cov txheej txheem tsim khoom.
Kev tsim khoom ntawmCov raj ERWmuaj qhov zoo ntawm kev ua haujlwm sai dua thiab pheej yig dua thiab feem ntau raug xaiv rau cov haujlwm uas xav tau kev tsim khoom loj thiab kev siv nyiaj ntau.
ERWcov raj feem ntau yog siv los tsim cov kab uas me dua thiab cov phab ntsa nyias dua, thaumSAWCov raj xa dej no zoo dua rau cov kav dej loj dua thiab cov phab ntsa tuab dua. Thov xaiv hom yeeb nkab hlau uas tsim nyog rau koj qhov project.
Cov kav dej ERW uas tsim tawm raws li EN 10219 feem ntau tsis xav tau kev vuam sab hauv.
Qhov no yog vim EN 10219 cov kav dej feem ntau yog siv rau hauv cov ntawv thov kev tsim kho, xws li kev tsim kho thiab kev tsim kho tshuab, qhov twg cov kev cai rau qhov zoo li vuam feem ntau tsis nruj dua li rau cov hlab ntsha siab lossis cov kav dej siab. Yog li ntawd, tsuav yog lub zog thiab kev ncaj ncees ntawm qhov vuam ua tau raws li qhov yuav tsum tau ua ntawm tus qauv, cov vuam sab hauv tuaj yeem siv yam tsis muaj kev txiav ntxiv.
Tsis muaj kev kho cua sov tom qab ntawd, tsuas yog tias qhov vuam yuav nyob rau hauv qhov xwm txheej welded lossis cua sov-kho.
Kev Tshuaj Xyuas Cast (Cov Tshuaj Lom Zem ntawm Cov Khoom Siv Raw)
Ob leeg S275J0H thiab S275J2H muaj qhov siab tshaj plaws ntawm cov pa roj carbon sib npaug (CEV) ntawm 0.40%.
S725J0H thiab S275J2H nrog qhov siab tshaj plaws CEV ntawm 0.4% qhia txog kev vuam zoo dua nrog kev pheej hmoo tsawg dua ntawm kev tawv thiab tawg thaum lub sijhawm vuam.
Nws kuj tseem tuaj yeem suav nrog siv cov qauv hauv qab no:
CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15.
Kev Tshuaj Xyuas Khoom (Cov Tshuaj Lom Zem ntawm Cov Khoom Tiav)
Thaum lub sijhawm tsim cov hlau, cov tshuaj lom neeg muaj pes tsawg leeg yuav hloov pauv rau ntau yam, thiab cov kev hloov pauv no yuav cuam tshuam rau cov khoom thiab qhov zoo ntawm cov hlau.
Cov tshuaj lom neeg ntawm cov yeeb nkab hlau kawg yuav tsum ua raws li cov tshuaj lom neeg ntawm cov casting thiab nws qhov kev hloov pauv uas tso cai.
Cov yam ntxwv ntawm cov khoom siv kho tshuab suav nrog lub zog yield, lub zog tensile, elongation, thiab lub zog cuam tshuam.
Kev txo kev ntxhov siab annealing ntawm ntau dua 580 ℃ lossis ntau dua ib teev yuav ua rau puas tsuaj ntawm cov khoom siv kho tshuab.
Cov Lus Cim:
Tsis tas yuav tsum kuaj qhov cuam tshuam thaum qhov tuab teev tseg yog <6 hli.
Cov khoom cuam tshuam ntawm JR thiab J0 cov raj zoo tsis tau txheeb xyuas tshwj tsis yog teev tseg.
EN 10219 Welds hauv ERW steel kav dej tuaj yeem kuaj xyuas los ntawm kev xaiv ib qho ntawm cov hauv qab no.
EN 10246-3 mus rau qib kev lees txais E4, tsuas yog tias txoj kev tig lub raj / pancake coil yuav tsis raug tso cai;
EN 10246-5 mus rau qib kev lees txais F5;
EN 10246-8 mus rau qib kev lees txais U5.
Kev suav qhov hnyav theoretical ntawm EN 10219 cov hlab tuaj yeem ua raws li qhov ceev ntawm 7.85 kg / dm³.
M=(DT) × T × 0.02466
M yog qhov hnyav ib chav ntev;
D yog qhov teev tseg sab nraud, chav nyob hauv mm;
T yog qhov tuab ntawm phab ntsa uas tau teev tseg, chav nyob hauv mm.
Kev kam rau siab ntawm cov duab, qhov ncaj thiab pawg
Kev kam rau siab ntev
Cov raj hollow section uas tsim tawm raws li EN 10219 yog weldable.
Thaum vuam, qhov tawg txias hauv thaj chaw vuam yog qhov kev pheej hmoo tseem ceeb vim tias qhov tuab, qib zog, thiab CEV ntawm cov khoom nce ntxiv. Qhov tawg txias yog tshwm sim los ntawm kev sib xyaw ua ke ntawm ntau yam:
cov hydrogen uas tawg tau ntau hauv cov hlau vuam;
ib qho qauv tawg yooj yim hauv thaj chaw uas raug cua sov;
qhov tseem ceeb ntawm kev ntxhov siab tensile hauv qhov sib koom ua ke welded.
Qhov saum npoo ntawm cov yeeb nkab hlau yuav tsum du thiab tsis muaj qhov tsis zoo uas yuav cuam tshuam rau kev ua haujlwm ntawm cov khoom, xws li tawg, qhov, khawb, lossis xeb.
Cov pob, cov kab nrib pleb, lossis cov kab nrib pleb ntev uas tsim los ntawm cov txheej txheem tsim khoom siv tau tsuav yog qhov tuab ntawm phab ntsa seem nyob hauv qhov kam rau siab, qhov tsis zoo tuaj yeem tshem tawm los ntawm kev sib tsoo, thiab qhov tuab ntawm phab ntsa kho tau raws li qhov yuav tsum tau ua tsawg kawg nkaus.
Botop HlauTsis yog tsuas yog muab cov kav hlau zoo raws li EN 10219 xwb, nws kuj muaj ntau yam kev xaiv rau kev txheej saum npoo ntawm cov kav hlau kom haum rau cov kev xav tau tshwj xeeb ntawm nws cov neeg siv khoom hauv ntau yam haujlwm engineering. Cov txheej no yog tsim los txhim kho kev tiv thaiv corrosion ntawm cov kav thiab ntxiv kev tiv thaiv ntxiv, yog li ua rau lawv lub neej ua haujlwm ntev dua.
Kub-dip Galvanizing
3LPE (HDPE) Txheej
FBE Txheej
Kev Txheej Txheem Varnish
Kev Pleev Xim
Kev Txheej Txheem Qhov Hnyav ntawm Cement
Cov khoom siv choj: cov qauv tsis yog thawj qhov uas siv rau hauv cov choj, xws li cov ntaiv thiab cov parapets.
Cov ncej tsev: txhawb nqa cov kem thiab cov ntoo siv hauv kev tsim kho thiab kev tsim kho vaj tse.
Cov kav dej: cov kav dej rau kev thauj cov kua thiab cov pa roj, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas xav tau qib ntawm kev ywj pheej thiab kev tiv thaiv corrosion.
Cov qauv ib ntus: kev txhawb nqa ib ntus thiab cov thav duab uas tsim nyog rau kev tsim kho thiab kev tsim kho vaj tse.
Cov ntawv thov no siv cov khoom siv zoo heev thiab weldability ntawm S275J0H thiab S275J2H kom tau raws li qhov xav tau ntawm cov qauv sib dua tab sis ruaj khov.
ASTM A500:Cov Qauv Txheem rau Cov Yeeb Nkab Carbon Steel Uas Tau Tsim Txias thiab Tsis Muaj Qhov Txuas Hauv Cov Puag Ncig thiab Cov Duab.
ASTM A501Cov Qauv Txheem rau Cov Kav Hlau Carbon Steel Uas Kub Thiab Tsis Muaj Qhov Txuas.
EN 10210: Cov seem hollow ua tiav los ntawm cov hlau tsis sib xyaw thiab cov hlau zoo.
EN 10219: Cov khoom siv vuam txias uas ua los ntawm cov hlau tsis sib xyaw thiab cov hlau zoo.
JIS G 3466: Cov kav hlau carbon square thiab rectangular rau cov qauv dav dav.
AS/NZS 1163: Cov khoom siv hlau uas ua los ntawm cov hlau txias.
Cov qauv no siv dav thoob plaws ntiaj teb, thiab lawv pab ua kom ntseeg tau tias cov kav hlau ua tau raws li cov qauv kev ua tau zoo hauv ntau yam kev siv engineering. Thaum xaiv cov qauv kav hlau, nws yog ib qho tseem ceeb uas yuav tsum xav txog nws cov kev xav tau tshwj xeeb, cov cai hauv cheeb tsam, thiab cov kev cai ua tau zoo.
ASTM A252 GR.3 Cov Qauv LSAW (JCOE) Cov Yeeb Nkab Hlau Carbon
BS EN10210 S275J0H LSAW (JCOE) Cov Yeeb Nkab Hlau
ASTM A671/A671M LSAW Cov Yeeb Nkab Hlau
ASTM A672 B60/B70/C60/C65/C70 LSAW Cov Yeeb Nkab Hlau Carbon
API 5L X65 PSL1/PSL 2 LSAW Cov Yeeb Nkab Hlau Carbon / API 5L Qib X70 LSAW Cov Yeeb Nkab Hlau
EN10219 S355J0H Cov Qauv LSAW (JCOE) Cov Yeeb Nkab Hlau
