1. P265G5 (Cov Khoom Siv Qib)
Qhov no yog European Txuj Ci (EN 10216) Kev Tsim Qauv Rau Aseamless thiab welded steel yeeb nkab rau siab lub hom phiajCov. Nws yog ib qho ib txwm muaj rau boilers thiab siab cov hlab ntsha.
P:Sawv rau "siab" daim ntawv thov.
265:Qhia txog tusYam tsawg kawg nkaus teev tseg lub zog(Reh) nyob rau hauv chav tsev kub yog 265 MPa (megapascals). Qhov no yog ntsuas ntawm kev ntxhov siab uas cov khoom pib deform plastically.
G:Sawv rau "nplej" cov hlau ua kom zoo.
H:Qhia tias cov hlau tsim nyog rau kev sivKev Kub Siab.
Cov yam ntxwv tseem ceeb ntawm P265GHHHGH:
Lub zog zoo thiab tawv:Nws muaj qhov sib npaug zoo ntawm lub zog thiab muaj peev xwm nqus hluav taws xob (cuam tshuam nyuaj), uas yog qhov tseem ceeb rau cov khoom siab.
High - kub kev ua tau zoo:Nws yog tsim los tuav nws lub zog thiab tiv thaiv creepp (qeeb deformation nyob rau hauv kev ntxhov siab tas li) ntawm kev nce qib siab, feem ntau txog li 500-550 degree.
Weldability:Nws muaj qhov zoo weldability, lub ntsiab lus nws tuaj yeem welded yooj yim tsis muaj kev tawg lossis tsis meej, uas yog qhov tseem ceeb rau kev tsim cov hlab ntsha loj thiab cov raj xa khoom.
Cov Kev Siv Cov Ntaub Ntawv Feem Ntau:
Boiler Tubes Thiab Superheaters
Siab
Cov Hluav Taws Xob Tshav Kub Kub
High - kub piping hauv cov fais fab nroj tsuag (fossil roj thiab nuclele)
Petrochemical cog piping
2. Swshaw (cov txheej txheem tsim khoom)
Tussawsawv rauMuab kauv submerged arc welded.
Qhov no qhia txog li cas cov yeeb nkab steel yog tsim:
Chev:Cov txheej txheem pib nrog lub kauj ntawm cov hlau sawb (skelp).
Txoj kev sib sau:Cov kab txaij yog cov khoom noj tas li thiab tsim ntawm lub kaum sab xis rau ntawm tus kauv (helical) cov duab. Qhov no zoo li dov ib daim ntawv rau hauv lub raj ntawm lub kaum sab xis.
Vuam:Sab hauv thiab sab nraud welds yog ua ib txhij siv lubSubmerged Arc Vuam (pom)txheej txheem. Hauv kev pom, lub arc tau faus nyob rau hauv ib txheej ntawm fusible flux, uas ua rau:
Siab Weld Zoo:Tob nkag thiab ib tug du, huv si tag nrho.
Cov Nqi Lig Unibition:Cov txheej txheem nrawm thiab muaj txiaj ntsig rau cov kav dej loj.
Cov Khoom Siv Zoo Tshaj:Cov welds muaj zog thiab ntseeg tau.
Cov yam ntxwv ntawm SSAW kav:
Diamiters loj loj:SSAW cov txheej txheem yog zoo heev rau kev tsim cov kav dej uas muaj dej num ntau heev (los ntawm 20 nti} nti lossis 500 hli txog 2500 hli +).
Yooj taus loj me:Tib qhov dav ntawm cov hlau hlau tuaj yeem siv los tsim cov diam hlau sib txawv tsuas yog hloov lub kaum sab xis.
Tus nqi -}} Ua tau zoo:Feem ntau kev lag luam rau loj - txoj hauj lwm uas hla los cuam tshuam nrog seamless lossis longitudinal welded (lsaw) cov hau kev.
Ntev:Yuav tsim tau nyob rau hauv ntev ntev, txo tus naj npawb ntawm cov teb velds hauv ib qho raj xa dej.
Ua ke: P265GhGh Ssaw Steel Yeeb Nkab
A P26GHGHGH SSAW STEEL YEEyog li no:
Ib qho loj - txoj kab uas hla, siv rau kev ua haujlwm siab rau cov kab mob sib xyaw ua ke thiab submerged arc vuam.
Cov ntawv thov raug rau cov yeeb nkab tshwj xeeb no:
High - kub siab logeHauv cov chaw muaj hwj huam.
Loj - diam uas cheeb tsam kisRau chav lossis lwm yam siab - pa roj.
Cov Txheej Txheem Txheej TxheemHauv tej yaam num tsim chaw loj (qhov chaw nws lub zog tseem ceeb yog, txawm tias thawj qhov kev tsim qauv yog rau siab).
Dej kisprojects, though for ambient temperature water, a different grade like P235 might be more cost-effective.
Cov Qauv thiab Tshuaj Xyuas
P265GhGh Ssaw Kav yog tsim raws cov qauv xws liEn 10217(Rau Welded Siab Tubes) lossis lwm cov neeg siv khoom - tus qauv zoo li API 5L lossis ANTM A139.
Cov kev ntsuam xyuas tseem ceeb rau cov kav dej suav nrog:
Hydrostatic kev kuaj:Txhua cov yeeb nkab tau sim rau lub siab siab dua li nws ua haujlwm siab los xyuas kom muaj kev ntseeg ncaj ncees.
Tsis - Kev sim tshuaj (ndt):Weld leeg yog 100% tshuaj xyuas los ntawm kev sim ultrasonic (U) lossis x -} duab ci kom ntseeg tau tias nws yog qhov tsis xws luag.
Kev ntsuam xyuas txhua yam:Tensile, Kev Cuam Tshuam, thiab Kev Kuaj Hararness yog ua rau cov qauv los ntawm cov yeeb nkab lub cev thiab Weld los xyuas lawv tau raws li P265GHGHONGHANCE.
Tshuaj Ntsuam Xyuas Tshuaj:Pov thawj ntawm cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau.
Kev sib piv nrog lwm hom
| Yam zoo | P265GhGh Ssaw | P265Hh LSAWW | P26GHGH SEAMLESS (SMLS) |
|---|---|---|---|
| Kev ua | Muab hwj weld | Longitudinal Weld | Tsis muaj Weld; Tho tus chob Billet |
| Max uas hla | Loj Loj (2500 hli +) | Loj (txog li ~ 1600mm) | Me dua (feem ntau txog ~ 600 hli) |
| Tus nqi | Txo rau qhov loj me | Tswj kav | Siab tshaj plaws |
| Siab Ntsuam | Siab | Siab heev | Siab tshaj plaws (isotropic, tsis muaj weld) |
| Thawj siv | Loj dia. Siab Kab | Loj dia. Qhov tseem ceeb kab | Me, siab - h siab tseem ceeb kab |
Hauv cov ntsiab lus xaus,P26GHGHGH SSAW STEEL YEEis a cost-effective solution for large-diameter pipelines that need to operate under pressure and at high temperatures.
