A252 Qib 2 Cov Yeeb Nkab Hlau Rau Cov Hauv Paus Hauv Kev Lag Luam Offshore
Hauv lub ntiaj teb kev tsim kho vaj tse uas hloov zuj zus tas li, qhov xav tau cov khoom siv txhim khu kev qha thiab ruaj khov yog qhov tseem ceeb heev. Peb zoo siab los muab peb cov pawg zoo tshaj plaws, tsim los ua kom tau raws li cov qauv nruj uas xav tau rau cov kav dej roj hauv av. Peb cov pawg tau tsim nrog kev ua tib zoo, kom ntseeg tau tias txhua pawg tau hnyav ib leeg kom lav qhov ua raws li cov lus qhia ntawm kev lag luam.
Peb cov yeeb nkab yog ua los ntawm A252 GRADE 2 hlau, ib yam khoom uas paub txog nws lub zog thiab kev ywj pheej. Cov hlau qib no yog qhov tsim nyog rau cov ntawv thov uas cuam tshuam nrog kev teeb tsa hauv av qhov twg qhov kev ua tiav ntawm cov khoom siv yog qhov tseem ceeb. A252 GRADE 2 yeeb nkab hlau yog tsim los kom tiv taus cov xwm txheej hnyav uas feem ntau ntsib hauv cov chaw hauv av, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov roj.
Ua ib lub tuam txhab uas ntseeg siab rau cov yeeb nkab SSAW (Spiral Submerged Arc Welded), peb xyuas kom meej tias peb cov khoom ua tau raws li cov qauv zoo tshaj plaws. Txhua lub yeeb nkab yog tsim los ntawm kev siv cov txheej txheem vuam siab heev uas ua rau cov khoom siv muaj zog thiab ruaj khov. Peb cov yeeb nkab SSAW paub txog nws cov khoom siv zoo heev thiab tsim nyog rau ntau yam kev siv, suav nrog cov kav dej roj av hauv av. Cov txheej txheem vuam spiral tsis yog tsuas yog muab cov qauv muaj zog xwb, tab sis kuj tso cai rau kev tsim cov kav ntev dua, txo qhov xav tau cov pob qij txha thiab txhim kho kev ncaj ncees ntawm kev teeb tsa.
Khoom Siv Kho Tshuab
| Qib 1 | Qib 2 | Qib 3 | |
| Yield Point los yog yield zog, min, Mpa (PSI) | 205 (30 000) | 240 (35 000) | 310 (45 000) |
| Lub zog tensile, min, Mpa (PSI) | 345 (50 000) | 415 (60 000) | 455 (66 0000) |
Kev tshuaj xyuas khoom
Cov hlau yuav tsum muaj tsis pub ntau tshaj 0.050% phosphorous.
Kev Hloov Pauv Uas Tso Cai Hauv Qhov Hnyav thiab Qhov Ntev
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau ntsuas sib cais thiab nws qhov hnyav yuav tsum tsis txhob hloov ntau tshaj 15% dhau lossis 5% qis dua nws qhov hnyav theoretical, xam los ntawm kev siv nws qhov ntev thiab nws qhov hnyav ib chav ntev.
Lub sab nraud txoj kab uas hla yuav tsum tsis txhob hloov ntau dua ± 1% ntawm qhov teev tseg nominal sab nraud txoj kab uas hla
Phab ntsa tuab ntawm txhua qhov chaw yuav tsum tsis pub ntau tshaj 12.5% nyob rau hauv qhov tuab ntawm phab ntsa uas tau teev tseg
Ntev
Ib qho ntev random: 16 txog 25ft (4.88 txog 7.62m)
Ob chav random ntev: tshaj 25ft txog 35ft (7.62 txog 10.67m)
Qhov ntev sib xws: kev hloov pauv uas tso cai ± 1in
Xaus
Cov kav dej yuav tsum muaj cov qhov kawg tiaj tus, thiab cov burrs ntawm qhov kawg yuav tsum raug tshem tawm
Thaum lub yeeb nkab kawg tau teev tseg kom yog bevel kawg, lub kaum sab xis yuav tsum yog 30 txog 35 degree
Kev cim khoom
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau cim kom pom tseeb los ntawm stenciling, stamping, lossis dov kom qhia: lub npe lossis hom ntawm tus neeg tsim khoom, tus lej cua sov, cov txheej txheem ntawm tus neeg tsim khoom, hom helical seam, sab nraud txoj kab uas hla, nominal phab ntsa thickness, ntev, thiab qhov hnyav ib chav ntev, qhov kev qhia tshwj xeeb thiab qib.
Ib qho tseem ceeb ntawm peb cov pawg yog lawv qhov hnyav sib xws. Txhua pawg raug ntsuas hnyav zoo thiab peb ua raws li qhov kev kam rau siab kom ntseeg tau tias qhov hnyav tsis hloov ntau tshaj 15% lossis 5% ntawm qhov hnyav theoretical. Qhov kev raug qhov tseeb no yog qhov tseem ceeb rau cov engineers thiab cov neeg cog lus uas vam khom cov lus qhia tseeb rau lawv cov haujlwm. Los ntawm kev tswj cov qauv hnyav no, peb pab xyuas kom meej tias cov txheej txheem teeb tsa mus zoo thiab tias kev ua haujlwm ntawm cov pawg ua tau raws li cov qauv xav tau.
Peb txoj kev cog lus rau qhov zoo tshaj qhov txheej txheem tsim khoom. Peb nkag siab tias kev vam meej ntawm txhua qhov project uas muaj cov kav dej roj hauv av nyob ntawm qhov kev ntseeg tau ntawm cov khoom siv. Yog li ntawd, peb ua cov kev kuaj xyuas zoo nruj ntawm txhua theem ntawm kev tsim khoom. Peb pab neeg kws tshaj lij mob siab rau kev ua kom txhua pawg ua tau raws li cov lus qhia tsim nyog thiab siv tau tam sim ntawd thaum xa khoom.
Ntxiv rau cov pawg zoo, peb kuj muab kev pabcuam zoo rau cov neeg siv khoom thiab kev txhawb nqa. Peb pab neeg paub txog kev pabcuam yeej ib txwm muaj los teb cov lus nug uas koj muaj, muab kev qhia txog kev siv tshuab, thiab pab koj xaiv cov khoom zoo rau koj cov kev xav tau tshwj xeeb. Peb zoo siab rau kev tsim kom muaj kev sib raug zoo ntev nrog peb cov neeg siv khoom, kom ntseeg tau tias lawv tsis yog tsuas yog tau txais cov khoom zoo tshaj plaws xwb, tab sis kuj tau txais kev txhawb nqa uas lawv xav tau los ua kom tiav lawv txoj haujlwm.
Hauv kev xaus lus, peb cov yeeb nkab zoo tshaj plaws ua los ntawm A252 GRADE 2 hlau, muaj los ntawm peb cov kev pabcuam muag yeeb nkab SSAW, yog qhov kev daws teeb meem zoo tshaj plaws rau koj qhov project roj av hauv av. Nrog peb txoj kev cog lus rau qhov zoo, qhov tseeb, thiab kev txaus siab ntawm cov neeg siv khoom, koj tuaj yeem ntseeg siab rau peb los muab cov ntaub ntawv koj xav tau los xyuas kom meej tias koj txoj kev tsim kho vaj tse ua tiav thiab muaj kev nyab xeeb. Xaiv peb cov yeeb nkab rau qhov kev daws teeb meem txhim khu kev qha, ruaj khov, thiab ua haujlwm tau zoo rau koj cov kev xav tau kev tsim kho hauv av.
