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    Melemo ea Lipeipi tsa Tšepe tsa A252 tsa Kereiti ea 3 tse Sebelisitsoeng Kahong ea likhoerekhoere le Kaho ea Peipi ea Petroleum.

    Melemo ea lipeipi tsa tšepe tsa A252 tsa Kereiti ea 3 tse Sebelisitsoeng Mokhoeng oa likhoerekhoere le Kaho ea Peipi ea Petroleum Setšoantšo se Hlahisitsoeng
    • Melemo ea Lipeipi tsa Tšepe tsa A252 tsa Kereiti ea 3 tse Sebelisitsoeng Kahong ea likhoerekhoere le Kaho ea Peipi ea Petroleum.
    • Melemo ea Lipeipi tsa Tšepe tsa A252 tsa Kereiti ea 3 tse Sebelisitsoeng Kahong ea likhoerekhoere le Kaho ea Peipi ea Petroleum.

    Tlhaloso e Khutšoanyane:

    Pipe ea tšepe ea A252 Grade 3, e tsejoang hape e lepipipi ya arc e qoeletseng ka metsing, ke khetho e tsebahalang bakeng sa kaho ea likhoerekhoere le lipeipi tsa oli.Liphaephe tsena li etselitsoe ho mamella maemo a feteletseng le ho fana ka melemo e mengata lits'ebetsong tsena.


    Lintlha tsa Sehlahisoa

    Li-tag tsa Sehlahisoa

    E 'ngoe ea melemo ea bohlokoa eaA252 Grade 3 pipe ea tšepe ke matla a eona a ikhethang le ho tšoarella nako e telele.Liphaephe tsena li entsoe ka tšepe ea boleng bo holimo 'me li hanana haholo le ho bola, ho senyeha le tšusumetso.Sena se etsa hore e be tse loketseng ho sebelisoa liphaepheng tsa likhoerekhoere moo li ka pepesetsoang lintho tse senyang le meroalo e boima.Ho phaella moo, matla a tsona le ho tšoarella ha tsona li etsa hore li tšoanelehe ho sebelisoa ha ho etsoa lipeipi tsa oli, kaha li tlameha ho mamella likhatello tse phahameng le maemo a fetohang a tikoloho.

    Standard  Kereiti ea tšepe Likarolo tsa Lik'hemik'hale (%) Thepa ea Tensile Charpy(V notch)

    Teko ea Tšusumetso
    c Mn p s Si Tse ding Kotulo Matla(Mpa) Matla a tšepe(Mpa) (L0=5.65 √ S0 ）Metsotso e Lebelo la ho Otlolla (%)
    max max max max max min max min max D ≤ 168.33mm D ~ 168.3 limilimithara
      

     

    GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35   

    Ho eketsa NbVTi ho latela GB/T1591-94

    		 215   335   15 > 31  
    Q215B ≤ 0.15 0.25-0,55 0.045 0.045 0.035 215 335 15 > 31
    Q235A ≤ 0.22 0.30 ＜ 0.65 0.045 0.050 0.035 235 375 15 >26
    Q235B ≤ 0.20 0.30 ≤ 1.80 0.045 0.045 0.035 235 375 15 >26
    Q295A 0.16 0.80-1,50 0.045 0.045 0.55 295 390 13 >23
    Q295B 0.16 0.80-1,50 0.045 0.040 0.55 295 390 13 >23
    Q345A 0.20 1.00-1.60 0.045 0.045 0.55 345 510 13 >21
    Q345B 0.20 1.00-1.60 0.045 0.040 0.55 345 510 13 >21
      

     

     

    GB/

    T9711-

    2011

    (PSL1)

    		 L175 0.21 0.60 0.030 0.030     

     

    Ka boikhethelo ho kenyelletsa e 'ngoe ea likarolo tsa NbVTi kapa motsoako ofe kapa ofe oa tsona

    		 175   310   27  E le 'ngoe kapa tse peli tsa toughness indexof

    matla a tšusumetso le sebaka sa ho kuta se ka khethoa.Bakeng sa

    L555, bona maemo.
    L210 0.22 0.90 0.030 0.030 210 335 25
    L245 0.26 1.20 0.030 0.030 245 415 21
    L290 0.26 1.30 0.030 0.030 290 415 21
    L320 0.26 1.40 0.030 0.030 320 435 20
    L360 0.26 1.40 0.030 0.030 360 460 19
    L390 0.26 1.40 0.030 0.030 390 390 18
    L415 0.26 1.40 0.030 0.030 415 520 17
    L450 0.26 1.45 0.030 0.030 450 535 17
    L485 0.26 1.65 0.030 0.030 485 570 16
      

     

     

    API 5L (PSL 1)

    		 A25 0.21 0.60 0.030 0.030    Bakeng sa tšepe ea sehlopha sa B,

    Nb + V ≤ 0,03%;

    bakeng sa tšepe ≥ grade B, boikhethelo ho eketsa Nb kapa V kapa bona

    motsoako, le Nb+V+Ti ≤ 0.15%

    		 172   310    (L0=50.8mm) ho ba

    e baloa ho latela foromo e latelang:

    e=1944·A0 .2/U0 .0

    A: Sebaka sa sampole ho mm2 U: Matla a fokolang a boletsoeng ho Mpa

    		  Ha ho letho kapa leha e le efe

    kapa bobeli ba

    tšusumetso

    matla le

    ho kuta

    sebaka se hlokoa e le mokhoa oa ho thatafala.
    A 0.22 0.90 0.030 0.030   207 331
    B 0.26 1.20 0.030 0.030   241 414
    X42 0.26 1.30 0.030 0.030   290 414
    X46 0.26 1.40 0.030 0.030   317 434
    X52 0.26 1.40 0.030 0.030   359 455
    X56 0.26 1.40 0.030 0.030   386 490
    X60 0.26 1.40 0.030 0.030   414 517
    X65 0.26 1.45 0.030 0.030   448 531
    X70 0.26 1.65 0.030 0.030   483 565

    Molemo o mong oa pipe ea tšepe ea A252 Grade 3 ke ho feto-fetoha ha eona.Liphaephe tsena li fumaneha ka mefuta e sa tšoaneng ea boholo le botenya, e leng se etsang hore li tšoanelehe bakeng sa mefuta e sa tšoaneng ea lisebelisoa.Hore na ho haha ​​e nyenyanekhoele ea likhoerekhoerekapa peipi e kholo ea oli, pipe ea tšepe ea A252 Grade 3 e ka etsoa habonolo ho finyella litlhoko tse khethehileng tsa morero.Ho feta moo, liphaephe tsena li ka etsoaliphaephe tsa sebopeho sa karolo e sekoti, ka ho eketsehileng ka ho atolosa tšebeliso ea tsona mererong ea kaho.

    Ntle le matla a eona le ho feto-fetoha ha maemo, pipe ea tšepe ea A252 Grade 3 e boetse e tsebahala ka ho boloka chelete e ngata.Liphaephe tsena li batla li le bonolo ho li kenya 'me li hloka tlhokomelo e fokolang, ho fokotsa litšenyehelo tsa morero ka kakaretso.Ho feta moo, bophelo ba bona ba nako e telele ba ts'ebeletso le ho hanyetsa kutu ho netefatsa hore ba fana ka phaello e matla ho tsetelo ea likhoerekhoere lepeipi ea oli molamerero ea kaho.

    Pipe ea SSAW

    Molemo o mong oa bohlokoa oa pipe ea tšepe ea A252 Grade 3 ke ho lumellana ha eona le mekhoa e fapaneng ea kaho.Liphaephe tsena li ka kengoa ho sebelisoa mekhoa ea khale ea ho epolla kapa mekhoa e se nang trenchless joalo ka ho cheka ka tsela e tšekaletseng, ho phunya lipeipi kapa ho etsa micro-tunnel.Ho feto-fetoha ha maemo hona ho lumella ho kenya ts'ebetso e sebetsang hantle le e theko e tlaase maemong a mangata a thata, ho kenyeletsa le libaka tsa litoropo, litsela tsa metsi le libaka tse sa tsotelleng tikoloho.

    Ka kakaretso, pipe ea tšepe ea A252 Grade 3 e fana ka mefuta e fapaneng ea melemo bakeng sa kaho ea likhoerekhoere le peterole.Matla a tsona, ho tšoarella, ho feto-fetoha ha maemo le ho sebetsa hantle ha tsona ho li etsa hore e be tse loketseng lits'ebetso tsena tse boima.Ebang li sebelisoa kahong ea likhoerekhoere kapa lipeipi tsa oli, liphaephe tsena li fana ka ts'ebetso e tšepahalang le boleng ba nako e telele.Ka lebaka leo, e ntse e le tharollo ea khetho bakeng sa baenjiniere le borakonteraka ba batlang litharollo tsa liphaephe tse tšoarellang le tse tšepahalang.

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