1. Cov khoom siv thiab cov txheej txheem ntau lawm ntawm L360m longitudinally welded yeeb nkab
L360m longitudinally welded yeeb nkab yog tsim los ntawm L360M steel phaj lossis L360M kauj. Cov khoom lag luam ua raws li tus qauv GB / T9711 rau cov kav hlau siv hauv cov roj thiab roj kev lag luam Pipeline thauj khoom hauv cov roj thiab roj kev lag luam Pipeline thauj mus los, PSL1 thiab PSL2 qib.
2. Cov Qauv Khoom Muag Khoom thiab Txuj Ci Ntau Lawm
Cov khoom lag luam khoom: txheej inerer los ntawm 76 hli txog 1420mm, phab ntsa tuab ntawm 2 hli rau 80mm. Cov txheej txheem ntau lawm: ERW (hluav taws xob tiv thaiv welded) steel yeeb nkab welded) steelly submerged arc welded) steel yeeb nkab.
3. Tshuaj lom neeg muaj pes tsawg leeg ntawm L360m longitudinally welded yeeb nkab
Carbon: tsawg dua los yog sib npaug rau 0.22
Silicon: tsawg dua los yog sib npaug rau 0.45
Manganese: tsawg dua lossis sib npaug rau 1.40
Phosphorus: tsawg dua los yog sib npaug rau 0.025
Sulphur: tsawg dua los yog sib npaug rau 0.015
4. Cov cuab yeej kho tshuab ntawm L360M longitudinally welded yeeb nkab
Peple Zog: 360Mpa-530MPA
Lub zog tensile: 460MPA-760MPA
Yield refio: 0.93
Weld tensile lub zog: ntau dua los yog sib npaug rau 460Mpa
5. Tshuaj Ntsuam Xyuas Daim Ntawv Pov Thawj Yuav Tsum Tau Rau PSL2 Cov Kav Hlau Hlau
Cov ntaub ntawv tshuaj xyuas: Cov chaw tsim tshuaj yuav tsum muab daim ntawv cog lus soj ntsuam raws li GB / T}}}}}}}}}}}}}}}
6. Kev xaj yuav tsum tau ua
Qhov muaj feem xyuam, txhua qhov kev txiav txim batch yuav tsum muab cov ntaub ntawv hauv qab no:
a) Cov cheeb tsam txheej txheem sab nraud, teev phab hlau tuab, steel yeeb nkab qib kawm, ntaus yeeb nkab, thiab kev xa khoom;
b) Kev Ntsuas Tshuaj Tshuaj (Kev Ntsuam Cua Sov thiab Kev Ntsuam Xyuas Cov Khoom Siv) thiab Cov Khoom Muag Carbon (Cov Khoom Taw Qhia thiab Kev Txwv Tsis Txaus);
c) TENSILE TEST Cov txiaj ntsig thiab cov qauv qauv, qhov loj me, chaw, thiab kev qhia paub;
D) CVN cuam tshuam cov txiaj ntsig kev xeem (qauv me me, kev taw qhia, txoj haujlwm, sim ntsuas kub, thiab kev txwv kub);
e) Welded cov yeeb nkab DWT cov txiaj ntsig kev ntsuas ntsuas (qhov kev sim ua haujlwm thiab ntsuas ntsuas ntsuas qhov ntsuas tau);
f) teev tseg yam tsawg kawg hydrostatic sim siab thiab tuav lub sijhawm;
g) rau welded kav, txoj kev xeem tsis ua haujlwm siv rau ntawm weld (radiographic, ultrasonic, lossis electromagnetic); hom thiab qhov loj ntawm cov ntaub ntawv siv lossis cov duab ua tau zoo;
H) rau seamless (sms) kav dej, qhov kev sim ua tsis tau zoo siv (ultrasonic, electromagetic, lossis sib nqus patalle); hom thiab qhov loj ntawm cov kev qhia txog kev siv;
Kuv) rau siab - zaus welded (HFW) kav dej, qhov tsawg kawg nkaus kev kho kub rau cov ntug dej ceev;
j) uas tsim nyog, pov thawj uas cov kav dej uas tawv thiab / lossis tubing ua tau raws li kev xav tau ntawm Annex A thiab / lossis Annex I;
k) npe thiab cov cuab yeej siv rau cov yeeb nkab steel hlau, hlau txaij (kauj) / steel phaj dov, thiab steelmaking;
L) Cov txiaj ntsig ntawm cov kev xeem ntxiv uas teev rau hauv daim ntawv cog lus yuav.
