1. Q: Dab tsi yog EN 10208 tus qauv? Nws cuam tshuam li cas rau L245 steel yeeb nkab?
A: En 10208 yog European txheem, hu ua "steel kav rau kev thauj cov kua dej sib txuas." Cov qauv no qhia txog cov kev yuav tsum tau ua, thiab kev sim rau kev ua tsis tau zoo thiab welded steel kav siv, xws li roj thiab roj. L245 yog ib qib lus txhais tau hais tseg hauv tus qauv no, sawv cev yam tsawg kawg los lub zog ntawm 245 megapScals (MPA). Yog li ntawd, en 10208 yog cov ntaub ntawv "kev cai lij choj" lossis "Txoj Cai" rau cov kav dej, thaum L245 yog cov khoom lag luam tshwj xeeb tsim raws li txoj cai no. Nkag siab txog cov qauv no yog qhov tseem ceeb rau cov kev tsim nyog thiab kev thov hom kab hlau no.
2. Q: Qhov kev tsim L245 tshwj xeeb tshaj yog dab tsi?
A: Qhov kev tsim qauv rau L245 ua raws cov kev cai dav dav ntawm European cov qauv. Tsab ntawv "L," ib tug tsiaj ntawv luv rau "LINEPIPIA," qhia meej meej tias cov hlau no tau npaj rau kev siv cov raj xa khoom. Tus lej "245" sawv cev rau tus hlau qhov tsawg kawg nkaus teev tseg lub zog (RP0.2) ntawm 245 mankapages (MPA phaus ib square nti (psi). Qhov no txhais tau tias nyob rau hauv lub tensile xeem, thaum cov ntawv thov kev ntxhov siab ncav cuag tus nqi no, cov khoom yuav pib mus tas mus li, muaj tsawg zuj zus deformation. Qhov txheej txheem noning intuitfies qhia cov khoom siv cov khoom tseem ceeb, ua rau nws yooj yim dua rau cov engineers thiab cov neeg yuav khoom kom pom sai sai thiab xaiv cov khoom siv.
3. Q: Dab tsi yog cov ntawv thov tseem ceeb rau en 10208 L245 steel yeeb nkab?
A: En 10208 L245 steel yeeb nkab siv tau nyob rau hauv ntev- kev lag luam rau tsev onshore thiab bipelore pipeline tes hauj lwm. Nws yog feem ntau siv los thauj cov kua dej sib txuas xws li roj crude, kho cov khoom siv roj av (xws li kev siv roj av thiab roj av), thiab nkev. Ib qho ntxiv, vim nws cov khoom siv neeg kho zoo thiab muaj qee zaum siv nyob rau hauv tsis txhawb lossis cov kav dej tseem ceeb, tab sis qhov no feem ntau yuav tsum muaj pov thawj kev cai ntxiv. Nws cov ntawv thov ntawm cov chaw nyob deb nroog mus rau qhov chaw hnyav (xws li cov qhab nia loj (xws li L245MB thiab L245MB) yuav tsum muaj rau xaiv.
4. Q: Ob qho txheej txheem tseem ceeb rau l245 steel yeeb nkab? Dab tsi yog qhov sib txawv ntawm lawv?
A: L245 steel yeeb nkab feem ntau yog cov xaim hluav taws xob feem ntau ua cov yeeb nkab steel (SMLS) thiab Welded Steel Yeeb (Welded). Seamless steel yeeb nkab yog ua los ntawm perforating thiab dov cov khoom siv hlau billet tsis muaj vegetic cov khoom siv thoob plaws ib ncig ntawm ib ncig ntawm txhua qhov chaw siab dua. Welded steel yeeb nkab yog tsim los ntawm coiling hlau phaj lossis cov kev xaiv vuam (hfw). Nws ua tau zoo dua qub. Qhov kev qhia tshwj xeeb.
5. Q: Puas yog 10208 L245 zoo ib yam li cov Upi 5L Qib B Steel Yeeb? A: Lawv yog qhov zoo heev thiab, feem ntau, hloov tau, tab sis lawv tsis yog sib npaug. API 5L yog ib pawg neeg siv hluav taws xob Amelikas, thiab nws cov yeeb nkab cov yeeb nkab thiab cov khoom siv neeg ua haujlwm ntau yam tsawg kawg nkaus lub zog ntawm 245 MPA). Txawm li cas los xij, ob qho qauv sib txawv hauv cov ncauj lus kom ntxaws, xws li cov tshuaj siv tshuaj lom neeg txwv, ntsuas zaus, thiab qee yam ntxiv. Qhov tseem ceeb tshaj plaws, en 10208 Ntxiv cov qib l245 rau hauv cov qhab nia zoo (xws li NB thiab MB) nrog rau cov kev cuam tshuam tshwj xeeb. Yog li ntawd, rau cov phiaj xwm uas xav tau, ua haujlwm yuav tsum ua raws cov qauv tshwj xeeb.
