API 5L X42 PSL1 LSAW -} yooj yim- Qib Kab Yeeb Nkab
Khoom Taw Qhia
API 5L X42 PSL1 ncaj SAM WELDED yeeb nkab (LSAW) yog qhov yooj yim} qib tsawg zog zog ntawm 42,000 psi (290 mpa). Cov khoom no yog tsim los ntawm cov phaj steel thiab tsim nrog txoj hlua ncaj weld siv submerged arc vuam, nthuav qhia zoo heev ntawm kev ua yeeb yam. Nws yog qhov tsim nyog rau tsis-} Cov ntaub ntawv thov kev thauj khoom zoo li muaj roj nyob rau hauv cov roj av thiab qis} {{{{} kub txoj kev xav tau tsis yog txoj kev nruj me ntsis.
Parameter muaj pes tsawg qhov kev ua tau zoo
PSL1 muaj cov kev cai nyob rau hauv, feem ntau tsuas yog qhia cov ntsiab lus ntau tshaj plaws thiab phosphorus qhov tseem ceeb ntawm cov ntsiab lus ntawm cov duab roj carbon ntau thiab cov txiaj ntsig ntau dua, cov txheej txheem yooj yim, cov txheej txheem sib xyaw ua ke.
| Yam tseem ceeb | Lub zog tensile σb MPa |
Paib σs MPa |
Elongation lossis ncab tom qab lov δ % |
|---|---|---|---|
| Seamless Yeeb Nkab, Yeeb Nkab | Ntau dua los yog sib npaug rau 415 | Ntau dua los yog sib npaug rau 290 | * |
Kev Kho Cua Sov
Feem ntau cov kev kho cua sov feem ntau siv thaum tus post - Weld Kev Ua Haujlwm (tshwj xeeb yog cov tawv ntoo) tsis tau raws li qhov yuav tsum tau ua lossis thaum tus neeg siv tau muaj tshwj xeeb cov lus qhia tshwj xeeb.
Li cas los ua cov txheej txheem kev kho cua sov rau API 5L X42 PSL1 ncaj SAM WELDED YAS: Cua sov, tuav, thiab txias. Ua ntej, Welded steel yeeb nkab yog uniformly rhuab ntawm ib tus nqi hloov pauv mus rau theem no hloov pauv (feem ntau kwv yees li 900 degree- 930 degree). Tom qab ntawd, nws yog muaj nyob ntawm qhov kub no rau lub sijhawm txaus kom tso cai rau kev hloov pauv ntawm cov kev ntxhov siab ntawm cov vuam. Thaum kawg, cov yeeb nkab steel raug tshem tawm ntawm lub cub tawg thiab tsis sib xws txias hauv cov huab cua, uas ua rau muaj cov khoom siv kho kom zoo nkauj thiab cov nyom micrivubtructure. Cov txheej txheem no tau txhim kho cov cuab yeej siv ntawm weld thiab cov khoom siv hluav taws xob, ua rau nws nyuaj dua thiab tshem tawm cov kev cuam tshuam zoo ntawm Weld tshav kub kub.
Txog Peb
Tsim nyob rau hauv 2008 thiab nyob hauv lub peev txheej thaum ub ntawm Anciet, Henan xeev yog koom nrog pab pawg hauv kev sib haum xeeb rau cov qhua tuaj noj mov ntawm lub siab. " Nrog 18 xyoo kev paub hauv kev xa tawm txawv teb chaws, GNEE pab pawg pabcuam cov neeg siv cov neeg txawv teb chaws. Peb cov khoom siv steel, suav nrog cov kav dej steel thiab cov phaj, tau xa tawm hauv cov khoom loj, yog ntawm kev ntseeg tau zoo, thiab tau txais cov kev yuav khoom los ntawm ntau tus neeg siv khoom. Rau API 5L Qib, peb cov thev naus laus zis ntau dua, peb muaj peev xwm ua tau zoo rau peb cov neeg siv khoom yooj yim.
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