API 5L X70 (L485)yog ib hom yeeb nkab hlau siv hauv kev lag luam roj thiab roj rau kev thauj mus los hauv cov kav dej, muab lub npe raws li nws qhov tsawg kawg nkauslub zog tawm los ntawm 70,300 psi (485 MPa), thiab muaj ob qho tib si seamless thiab welded yeeb nkab thiab muab faib ua ob qib kev qhia tshwj xeeb ntawm cov khoom, PSL1 thiab PSL2. Hauv PSL1, X70 yog qib siab tshaj plaws, thaum nyob rau hauv PSL2 nws kuj yog ib qho ntawm cov qib siab dua ntawm cov yeeb nkab hlau.
API 5L X70 cov yeeb nkab hlau yog qhov tshwj xeeb tshaj yog rau qhov kev xav tau ntawm kev thauj mus los ntev, siab siab vim nws lub zog siab thiab tiv taus siab. Yuav kom tiv taus siab dua, X70 cov yeeb nkab hlau feem ntau yog tsim nrog phab ntsa tuab dua kom ntseeg tau tias muaj zog thiab ruaj khov txaus.
Botop Hlauyog ib lub chaw tsim khoom ntawm cov yeeb nkab steel LSAW uas muaj phab ntsa tuab thiab loj uas muaj ob sab uas nyob hauv dej nyob hauv Suav teb.
Qhov Chaw: Cangzhou City, Hebei Province, Suav Teb;
Tag Nrho Cov Nyiaj Txiag: 500 lab RMB;
Hoobkas cheeb tsam: 60,000 square meters;
Muaj peev xwm tsim khoom txhua xyoo: 200,000 tons ntawm JCOE LSAW cov kav hlau;
Cov Khoom Siv: Cov khoom siv tsim khoom thiab kuaj siab heev;
Kev Tshwj Xeeb: LSAW cov yeeb nkab hlau tsim tawm;
Daim Ntawv Pov Thawj: API 5L tau ntawv pov thawj.
Cov Cai Xa Khoom
Cov xwm txheej xa khoom yog lub xeev kho cua sov lossis ua tiav ntawm lub raj hlau thaum nws npaj txhij xa mus rau tus neeg siv khoom tom qab tsim khoom. Cov xwm txheej xa khoom yog qhov tseem ceeb kom ntseeg tau tias lub raj muaj cov khoom siv kho tshuab thiab kev ua haujlwm ruaj khov.
Nyob ntawm PSL qib thiab tus mob xa khoom, X70 tuaj yeem muab faib ua pawg raws li hauv qab no:
PSL1: X70 (L485);
PSL2: X70Q (L485Q) thiab X70M (L485M);
Cov tsiaj ntawv tom qab PSL2 Q thiab M sawv cev rau:
Q: Tua thiab tempered;
M: Thermomechanical dov los yog thermomechanical tsim;
API 5L X70 Cov Txheej Txheem Tsim Khoom Siv Tau
Cov txheej txheem tsim khoom X70 suav nrog ob qho tib siseamless thiab weldedcov ntawv, uas tuaj yeem raug cais ua:
Ntawm cov no,SAWL(LSAW) yog cov txheej txheem feem ntau siv rau hauv kev tsim cov txheej txheem welded X70 thiab muaj txiaj ntsig zoo hauv kev tsim cov yeeb nkab loj, phab ntsa tuab.
Txawm hais tias cov kav hlau tsis muaj seamless tseem raug suav hais tias yog qhov kev xaiv zoo tshaj plaws vim lawv cov yam ntxwv nyob rau hauv qee qhov xwm txheej hnyav, qhov siab tshaj plaws ntawm cov kav hlau tsis muaj seamless uas tsim tawm feem ntau yog txwv rau 660 hli. Qhov kev txwv loj no tuaj yeem ua teeb meem thaum ntsib nrog cov phiaj xwm loj thauj mus los ntev.
Qhov sib piv, cov txheej txheem LSAW muaj peev xwm tsim cov raj nrog txoj kab uas hla mus txog 1,500 hli thiab phab ntsa tuab txog li 80 hli. Thiab tus nqi tuaj yeem pheej yig dua li cov hlau tsis muaj seamless.
API 5L X70 Cov Tshuaj Lom Zem
Cov Tshuaj Lom Zem rau PSL 1 Yeeb Nkab nrog t ≤ 25.0 hli (0.984 nti.)
Cov Tshuaj Lom Zem rau PSL 2 Yeeb Nkab nrog t ≤ 25.0 hli (0.984 nti.)
Rau cov khoom siv yeeb nkab PSL2 uas tau soj ntsuam nrog ib qhoCov ntsiab lus carbon ntawm ≤0.12%, cov pa roj carbon sib npaug CEPCMtuaj yeem suav tau siv cov qauv hauv qab no:
CEPCM= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Rau cov khoom siv yeeb nkab PSL2 uas tau soj ntsuam nrog ib qhoCov ntsiab lus carbon > 0.12%, cov pa roj carbon sib npaug CEllwtuaj yeem suav tau los ntawm kev siv cov qauv hauv qab no:
CEllw= C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15
Cov Tshuaj Sib xyaw nrog t > 25.0 hli (0.984 nti)
Nws yuav tsum txiav txim siab los ntawm kev sib tham thiab hloov kho kom haum rau cov khoom sib xyaw raws li cov kev cai ntawm cov tshuaj lom neeg saum toj no.
API 5L X70 Cov Khoom Siv Kho Tshuab
Cov Khoom Tensile
PSL1 X70 Cov Khoom Siv Tensile
PSL2 X70 Cov Khoom Siv Tensile
Lus Cim: Cov kev cai tau piav qhia meej hauvAPI 5L X52, uas tuaj yeem saib tau yog tias xav tau.
Lwm Yam Kev Sim Txog Tshuab
Cov kev sim ua hauv qab nosiv rau cov yeeb nkab hlau SAW xwb.
Kev sim khoov ntawm qhov vuam qhia;
Kev kuaj xyuas qhov nyuaj ntawm cov yeeb nkab uas tau vuam txias;
Kev tshuaj xyuas macro ntawm cov xov hlau;
thiab tsuas yog rau PSL2 steel yeeb nkab: CVN kev cuam tshuam kev xeem thiab DWT kev xeem.
Cov khoom kuaj thiab cov zaus kuaj rau lwm hom yeeb nkab tuaj yeem pom hauv Cov Lus Qhia 17 thiab 18 ntawm tus qauv API 5L.
Kev Ntsuas Hydrostatic
Lub Sijhawm Xeem
Txhua qhov loj ntawm cov kav hlau tsis muaj qhov thiab cov kav hlau txuas nrog D ≤ 457 hli (18 nti):lub sijhawm xeem ≥ 5s;
Cov yeeb nkab hlau vuam D > 457 mm (18 nti):lub sijhawm xeem ≥ 10s.
Kev Sim Zaus
Txhua lub yeeb nkab hlauthiab yuav tsum tsis muaj qhov xau ntawm lub vuam lossis lub yeeb nkab thaum lub sijhawm sim.
Kev sim siab
Lub zog kuaj hydrostatic P ntawm ayeeb nkab hlau tiaj tiajtuaj yeem suav los ntawm kev siv cov mis.
P = 2St/D
Syog qhov kev ntxhov siab ntawm lub hoop. tus nqi yog sib npaug rau qhov tsawg kawg nkaus ntawm lub zog ntawm cov yeeb nkab hlau xa feem pua, hauv MPa (psi);
tyog qhov tuab ntawm phab ntsa uas tau teev tseg, qhia hauv millimeters (nti);
Dyog qhov txoj kab uas hla sab nraud uas tau teev tseg, qhia hauv millimeters (nti).
Kev Tshuaj Xyuas Tsis Muaj Kev puas tsuaj
Rau cov kav dej SAW, ob txoj kev,UT(kev kuaj mob ultrasound) los yogRT(kev kuaj mob radiograph), feem ntau yog siv.
ET(kev sim electromagnetic) tsis siv tau rau SAW raj.
Cov kab txuas uas vuam rau ntawm cov kav dej vuam ntawm qib ≥ L210 / A thiab txoj kab uas hla ≥ 60.3 hli (2.375 hauv) yuav tsum raug tshuaj xyuas tsis muaj kev puas tsuaj rau tag nrho cov tuab thiab ntev (100%) raws li tau teev tseg.
Kev kuaj mob UT uas tsis ua puas tsuaj
Kev kuaj mob RT uas tsis ua puas tsuaj
Rau cov yeeb nkab SAW thiab COW, cov welds yuav tsum tau kuaj xyuas los ntawm cov txheej txheem tshuaj xyuas radiographic hauv qhov tsawg kawg nkaus 200 hli (8.0 nti) ntawm txhua qhov kawg ntawm cov yeeb nkab. hauv) ntawm txhua qhov kawg ntawm cov yeeb nkab yuav tsum tau kuaj xyuas los ntawm kev tshuaj xyuas radiographic.
Daim Ntawv Teev Sijhawm API 5L Yeeb Nkab
Rau qhov yooj yim ntawm kev saib thiab siv, peb tau teeb tsa cov ntaub ntawv PDF teem sijhawm. Koj tuaj yeem rub tawm thiab saib cov ntaub ntawv no yog tias xav tau.
Qhia kom meej sab nraud txoj kab uas hla thiab phab ntsa tuab
Cov nqi txheem rau cov kab uas hla sab nraud thiab cov phab ntsa tuab ntawm cov yeeb nkab hlau tau muab rau hauvISO 4200thiabASME B36.10M.
Kev kam rau siab ntawm qhov ntev
Cov kev cai API 5L rau kev kam rau siab ntawm qhov ntev tau piav qhia meej hauvAPI 5L Qib BYuav kom tsis txhob rov ua dua, koj tuaj yeem nyem rau ntawm daim ntawv xiav kom pom cov ntsiab lus tseem ceeb.
Cov Kev Tsis Zoo thiab Kev Kho Feem Ntau
Rau cov raj SAW, cov qhov tsis zoo hauv qab no feem ntau pom: cov npoo nibbled, arc hlawv, delamination, geometric deviations, hard lumps, thiab lwm yam.
Cov teeb meem pom los ntawm kev kuaj xyuas yuav tsum tau txheeb xyuas, faib ua pawg, thiab pov tseg raws li hauv qab no.
a) Qhov tob ≤ 0.125t, thiab tsis cuam tshuam rau qhov tsawg kawg nkaus ntawm phab ntsa tuab ntawm qhov tsis zoo yuav raug txiav txim siab tias yog qhov tsis zoo thiab yuav tsum tau muab pov tseg raws li cov kev cai ntawm C.1.
b) Qhov tsis zoo uas tob tshaj 0.125t uas tsis cuam tshuam rau qhov tuab ntawm phab ntsa tsawg kawg nkaus yuav raug txiav txim siab tias yog qhov tsis zoo thiab yuav tsum tau tshem tawm los ntawm kev rov ua kom ntse dua raws li C.2 lossis pov tseg raws li C.3.
c) Ib qho teeb meem uas cuam tshuam rau qhov tuab ntawm phab ntsa tsawg kawg nkaus uas tso cai yuav tsum raug lees paub tias yog qhov teeb meem thiab yuav tsum tau muab pov tseg raws li C.3.
Kev Txheeb Xyuas Xim
Yog tias thov, yuav muaj xim cim uas muaj li ntawm 50 hli (2 nti) txoj kab uas hla tuaj yeem pleev xim rau sab hauv ntawm txhua lub yeeb nkab hlau kom yooj yim sib txawv ntawm cov khoom sib txawv.
| Qib Yeeb Nkab | Xim pleev xim |
| L320 los yog X46 | Dub |
| L360 los yog X52 | Ntsuab |
| L390 los yog X56 | Xiav |
| L415 los yog X60 | Liab |
| L450 los yog X65 | Dawb |
| L485 los yog X70 | Xim av-violet |
| L555 los yog X80 | Xim daj |
X70 Steel sib npaug rau dab tsi?
ISO 3183 - L485Qhov no yog cov kav dej hlau raws li cov qauv thoob ntiaj teb thiab nws zoo ib yam li API 5L X70.
CSA Z245.1 - GR 485Qhov no yog qib hlau Canadian Standards Association rau cov kav dej roj thiab roj av.
EN 10208-2 - L485MBQhov no yog cov kav dej hlau raws li European Standard rau kev tsim cov kav dej rau kev thauj mus los ntawm roj thiab roj av.
Txheej
Peb tsis yog tsuas yog muab peb cov neeg siv khoom nrog cov kav hlau X70 zoo xwb tab sis kuj muab ntau hom kev pabcuam txheej txheem kom tau raws li qhov xav tau tshwj xeeb ntawm cov haujlwm sib txawv.
Cov xim pleev ximCov xim pleev ib txwm muab kev tiv thaiv yooj yim tiv thaiv xeb thiab tsim nyog rau cov chaw tsis kub heev lossis kev tiv thaiv ib ntus.
FBE txheejSiv rau saum npoo ntawm cov yeeb nkab hlau los ntawm kev txau electrostatic thiab tom qab ntawd kho los ntawm cua sov. Cov txheej no muaj kev tiv thaiv tshuaj lom neeg thiab kev sib txhuam zoo thiab tsim nyog rau cov kav dej hauv av lossis hauv qab dej.
3LPE txheej: Muaj ib txheej epoxy, ib txheej nplaum, thiab ib txheej polyethylene, nws muab kev tiv thaiv xeb zoo heev thiab kev tiv thaiv tshuab rau ntau yam kev thauj mus los hauv av.
3LPP txheejZoo ib yam li 3LPE, 3LPP txheej muaj peb txheej, tab sis siv polypropylene ua txheej sab nraud. Cov txheej no tiv taus cua sov siab dua thiab tsim nyog rau cov kav dej hauv qhov chaw kub siab.
Cov txheej txheem tuaj yeem xaiv tau raws li qhov chaw thov tshwj xeeb thiab cov kev xav tau ntawm cov kav dej kom ntseeg tau tias muaj kev ntseeg siab thiab kev nyab xeeb ntawm API 5L X70 cov kav dej thaum lub sijhawm pabcuam.
Vim Li Cas Xaiv Peb Rau X70 Steel Pipe
1. API 5L cov chaw tsim khoom tau ntawv pov thawjPeb cov chaw tsim khoom muaj daim ntawv pov thawj API 5L, uas ua kom muaj cov qauv zoo los ntawm qhov chaw mus rau cov khoom tiav nrog tus nqi zoo dua.
2. Ntau hom yeeb nkabPeb tsis yog tsuas yog cov chaw tsim khoom ntawm cov kav hlau welded xwb tab sis kuj yog cov khw muag khoom ntawm cov kav hlau seamless, thiab peb tuaj yeem muab ntau hom yeeb nkab uas tuaj yeem ua tau raws li qhov xav tau tshwj xeeb ntawm ntau yam haujlwm sib txawv.
3. Cov khoom siv txhawb nqa tiavNtxiv rau cov yeeb nkab hlau, peb kuj tuaj yeem muab cov flanges, lub luj tshib, thiab lwm yam khoom siv txhawb nqa, muab cov kev daws teeb meem ib zaug rau koj qhov project.
4. Kev pabcuam tshwj xeebPeb muaj peev xwm muab cov kev daws teeb meem raws li cov neeg siv khoom xav tau tshwj xeeb, suav nrog kev tsim khoom thiab kev ua cov kav hlau nrog cov lus qhia tshwj xeeb.
5. Cov kev pabcuam tshwj xeebTxij li thaum nws tau tsim tsa xyoo 2014, lub tuam txhab tau koom nrog ntau qhov project engineering thiab tau txais kev paub nplua nuj hauv kev lag luam, ua rau nws muaj peev xwm muab cov kev pabcuam tshwj xeeb thiab kev txhawb nqa.
6. Kev teb sai thiab kev txhawb nqaPeb pab neeg muab kev pabcuam rau cov neeg siv khoom tuaj yeem teb sai thiab txhawb nqa kev tshaj lij kom ntseeg tau tias koj cov teeb meem thiab kev xav tau raug daws raws sijhawm.
