HauvAPI 5Lspecification (tus qauv rau kab yeeb nkab siv roj thiab roj),PSLsawv rauKhoom Specification Level.
PSL2yog tus qauv zoo dua, nruj dua piv rau cov qauv PSL1. Nws yog tsim los rau siab - cov kav dej ua tau zoo nyob qhov twg kev nyab xeeb, kev tiv thaiv ib puag ncig, thiab kev ntseeg siab ntawm cov neeg kho tshuab yog qhov tseem ceeb (xws li siab - cov kab sib txuas, kev siv sab nrauv, lossis kev pabcuam qaub).
Qhov tseem ceeb sib txawv ntawm ib saib
| Feature | PSL1 | PSL2 |
| Mechanical Properties | Tsuas yog Yam tsawg kawg nkaus xwb. | Ob leegYam tsawg kawg nkaus thiab siab kawgtau teev tseg. |
| Kev ntsuam xyuas cuam tshuam | Tsis xav tau. | Yuav tsum tau(Charpy V-kev ntsuas ntsuas). |
| Weldability | Basic chemical tswj. | nrujCarbon sib npaug (CEQ)txwv. |
| Traceability | Txwv tsis pub traceability. | Tag nrho Traceability(cov ntaub ntawv yuav tsum tau los ntawm yaj mus rau qhov khoom kawg). |
| Kho | Kev kho los ntawm vuam yog tso cai. | Kev kho cov yeeb nkab lub cev los ntawm vuam yogTxwv tsis pub. |
Yuav Tsum Tau Ntsuas Qhov Ntsuas (Qhov txawv loj tshaj)
Qhov tseem ceeb tshaj yuav tsum tau rau PSL2 yog lubCharpy V-notch (CVN) impact test.
Vim li cas nws tseem ceeb:Qhov kev ntsuas no ntsuas cov hlau qhov tawv thiab nws lub peev xwm los tiv thaiv tawg ntawm qhov kub thiab txias (piv txwv li, 0℃lossis -20 degree).
Qhov tshwm sim:PSL1 kav tej zaum yuav nkig nyob rau hauv txias los yog siab - ib puag ncig siab, whereas PSL2 kav yog guaranteed nyob twj ywm ductile thiab tiv thaiv tawg propagation.
Stricter Chemical Composition
PSL2 muaj kev txwv nruj dua ntawm cov tshuaj lom neeg uas cuam tshuam rau vuam thiab corrosion kuj.
Carbon sib npaug (CEQ):PSL2 nruj me ntsis txwv CEQ (feem ntau Tsawg dua lossis sib npaug rau 0.43). Qhov no ua kom cov yeeb nkab tau yooj yim welded nyob rau hauv lub tshav pob yam tsis muaj kev pheej hmoo ntawm "txias tawg" nyob rau hauv weld cheeb tsam.
Cov impurities:PSL2 muaj kev txwv qis tshaj plaws rau Sulfur (S) thiab Phosphorus (P), uas txo qis hauv cov hlau tsis muaj zog.
Mechanical Property "Windows"
PSL1:Tsuas yog xav kom cov yeeb nkab yog "muaj zog txaus" (tsawg kawg yield Strength).
PSL2:Yuav kom cov yeeb nkab muaj zog txaustab sis tsis nyuaj dhau. Nws qhia txog qhov siab tshaj plaws tawm los thiab lub zog tensile.
Vim li cas?Yog tias cov hlau muaj zog heev, nws tuaj yeem ua nkig thiab plam nws lub peev xwm los khoov lossis tswj kev ntxhov siab, uas yog qhov txaus ntshai nyob rau thaj tsam av qeeg lossis tob - hiav txwv ib puag ncig.
Tag nrho Traceability
RauPSL2, cov chaw tsim khoom yuav tsum tuav ib qho "daim ntawv txoj kev" rau txhua lub yeeb nkab.
Koj tuaj yeem taug qab ib qho tshwj xeeb ntawm cov yeeb nkab rov qab mus rau qhov tseeb "tshav kub" (cov khoom tshwj xeeb ntawm cov hlau molten) nws los ntawm.
Qhov no yog qhov yuav tsum tau ua rau siab - cov phiaj xwm pheej hmoo uas cov kws tsim khoom yuav tsum tau txheeb xyuas cov khoom siv tseeb ntawm txhua mais ntawm cov kav dej.
Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT)
Thaum ob theem tau sim,PSL2yuav tsum tau nruj dua tsis yog{0}} kev tshuaj xyuas puas tsuaj (xws li Ultrasonic los yog Radiographic kuaj) ntawm tag nrho cov weld seam thiab feem ntau cov yeeb nkab xaus kom ntseeg tau tias tsis muaj qhov tsis xws luag.
Koj xav tau ib qho twg?
Xaiv PSL1:Rau qis-siab, cov kab dej txheem, lossis cov kab sib sau ua ke hauv qhov tsis yog- ib puag ncig tseem ceeb uas tus nqi yog qhov tseem ceeb.
Xaiv PSL2:Rau tag nrho cov roj thiab roj xa hluav taws xob loj, siab - cov tshuab ua haujlwm siab, cov haujlwm sab nrauv, thiab ib puag ncig uas cov yeeb nkab tsis ua haujlwm yuav raug puas tsuaj.
GNEE Pipe txheej txheem kab
GNEE Pipe Test equipments
GNEE Tube daim ntawv pov thawj
FAQ
Qhov txawv ntawm PSL 1 thiab PSL 2 yog dab tsi
HauvAPI 5Lspecification rau kab yeeb nkab,PSLsawv rauKhoom Specification Level. Thaum ob theem npog tib qib steel,PSL2yog tus qauv nruj dua nrog cov kev cai nruj dua rau chemistry, mechanical properties, and testing.
PSL2 txhais li cas ntawm cov yeeb nkab
Thaum koj pomPSL2cim (stenciled) ntawm cov yeeb nkab steel, nws sawv rauKhoom Specification Qib 2. Nws yog ib qho yuav tsum tau muab faib raws li qhovAPI 5Ltus qauv (American Petroleum Institute) rau cov kav dej siv hauv kev lag luam roj thiab roj.
