API 5L X70 (L485)luhlobo lombhobho wensimbi osetyenziswa kwishishini leoli kunye negesi kwiinkqubo zothutho lwemibhobho, ebizwa ngegama elincinciamandla esivuno se70,300 psi (485 MPa), kwaye iqulathe zombini iifom zemibhobho engenamthungo nedityanisiweyo kwaye yahlulwe yangamanqanaba amabini okucaciswa kwemveliso, iPSL1 kunye nePSL2.Kwi-PSL1, i-X70 lelona bakala liphezulu, ngelixa kwi-PSL2 ikwalelinye lamabanga aphezulu ombhobho wentsimbi.
I-API 5L X70 ipayipi yensimbi ifaneleke ngokukodwa kwiimfuno zomgama omde, ukuthuthwa koxinzelelo oluphezulu ngenxa yamandla ayo aphezulu kunye nokuxhatshazwa koxinzelelo.Ukuze ukwazi ukumelana noxinzelelo oluphezulu, umbhobho wentsimbi we-X70 usoloko uyilwe ngeendonga ezityebileyo ukuqinisekisa ukuba namandla okwaneleyo kunye nokuqina.
Intsimbi yeBotopngumvelisi oqeqeshiweyo wombhobho wentsimbi oshinyeneyo onamacala amakhulu anamacala amabini antywiliselwe arc LSAW ebekwe eTshayina.
Indawo: IsiXeko saseCangzhou, kwiPhondo laseHebei, eTshayina;
Utyalo-mali lulonke: 500 ezigidi RMB;
Indawo yefektri: 60,000 square metres;
Umthamo wonyaka wemveliso: iitoni ezingama-200,000 zemibhobho yentsimbi ye-JCOE LSAW;
Izixhobo: Imveliso ephezulu kunye nezixhobo zokuvavanya;
Ubungcali: Ukuveliswa kombhobho wentsimbi ye-LSAW;
Isiqinisekiso: API 5L eqinisekisiweyo.
Imiqathango yokuhanjiswa
Imeko yokuhanjiswa yimeko yokushisa okanye eqhutywe kwi-tube yensimbi xa ilungele ukuhanjiswa kumthengi emva kokuvelisa.Imeko yokuhanjiswa ibalulekile ukuqinisekisa ukuba ityhubhu ineempawu ezifunekayo zomatshini kunye nokunyaniseka kwesakhiwo.
Ngokuxhomekeke kwinqanaba le-PSL kunye nemeko yokuhanjiswa, i-X70 ingahlelwa ngolu hlobo lulandelayo:
PSL1: X70 (L485);
PSL2: X70Q (L485Q) kunye ne-X70M (L485M);
Oonobumba be-PSL2 abasisimamva u-Q kunye no-M bamele ngokulandelelanayo:
Q: Icinyiwe kwaye inomsindo;
M: I-Thermomechanical rolled okanye i-thermomechanical yenziwe;
I-API 5L X70 Inkqubo eyamkelekileyo yokwenziwa koMveliso
Inkqubo yokwenziwa kweX70 ibandakanya zombiniingenamthungo kwaye idityanisiweiifom, ezinokuhlelwa ngolu hlobo:
Kwezi,SAWL(LSAW) yeyona nkqubo ixhaphakileyo esetyenziswa ekuvelisweni kweenkqubo ezidityanisiweyo ze-X70 kwaye inenzuzo ekuvelisweni kombhobho wentsimbi enobubanzi obukhulu, enodonga olungqingqwa.
Nangona imibhobho yentsimbi engenamthungo isathathwa njengokhetho olukhethwayo ngenxa yeempawu zabo phantsi kweemeko ezithile eziqatha, ubukhulu becala ububanzi bemibhobho yensimbi engenamthungo eveliswa ngokuqhelekileyo bukhawulelwe kwi-660 mm.Lo mda wesayizi unokuba yingxaki xa ujongene neeprojekthi ezinkulu zemibhobho yothutho lomgama omde.
Ngokwahlukileyo, inkqubo ye-LSAW iyakwazi ukuvelisa iibhubhu ezinobubanzi ukuya kwi-1,500 mm kunye nobukhulu bodonga ukuya kwi-80 mm.Kwaye ixabiso linokuba yindleko ngakumbi kunentsimbi engenamthungo.
I-API 5L X70 Ukwakhiwa kweMichiza
Ukuqulunqwa kweMichiza ye-PSL 1 Ipayipi ene-t ≤ 25.0 mm (0.984 in.)
Ukuqulunqwa kweMichiza ye-PSL 2 Ipayipi ene-t ≤ 25.0 mm (0.984 in.)
Kwiimveliso zemibhobho yentsimbi ye-PSL2 ehlalutywe ngeumxholo wekhabhoni ≤0.12%, icarbon elingana CEpcmingabalwa kusetyenziswa le fomula ilandelayo:
CEpcm= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Kwiimveliso zemibhobho yentsimbi ye-PSL2 ehlalutywe ngeumxholo wekhabhoni > 0.12%, icarbon elingana CEllwingabalwa kusetyenziswa le fomula ingezantsi:
CEllw= C + Mn/6 + (Cr + Mo + V)/5 + (Ni +Cu)/15
Ukuma kweMichiza ene-t ＞ 25.0 mm (0.984 ngaphakathi.)
Iya kugqitywa ngothethwano kwaye iguqulwe ibe yinto efanelekileyo ngokusekwe kwiimfuno zemichiza engentla.
IiPropati ze-API 5L X70 zoomatshini
Iipropati ze-Tensile
Iipropati ze-PSL1 X70 ze-Tensile
Iipropati ze-PSL2 X70 ze-Tensile
Phawula: Iimfuno zicacisiwe kwiAPI 5L X52, enokujongwa ukuba kuyimfuneko.
Ezinye Iimvavanyo zoomatshini
Le nkqubo yovavanyo ilandelayoisebenza kwiintlobo zemibhobho yentsimbi ye-SAW kuphela.
Uvavanyo lokugoba isikhokelo se-weld;
Uvavanyo lobulukhuni lombhobho odityanisiweyo obandayo;
Ukuhlolwa kwe-Macro ye-welded seam;
kwaye kuphela kwipayipi yensimbi ye-PSL2: uvavanyo lwempembelelo ye-CVN kunye novavanyo lwe-DWT.
Izinto zokuvavanya kunye nee-frequencies zokuvavanya ezinye iintlobo zepayipi zinokufumaneka kwiiThebhile 17 kunye ne-18 ye-API 5L esemgangathweni.
Uvavanyo lweHydrostatic
Ixesha lovavanyo
Zonke iisayizi zeetyhubhu zentsimbi ezingenamthungo nezidityanisiweyo ezine-D ≤ 457 mm (18 in.):ixesha lovavanyo ≥ 5s;
Umbhobho wentsimbi odityanisiweyo D > 457 mm (18 ngaphakathi.):ixesha lovavanyo ≥ 10s.
Ukuphindaphinda koMfuniselo
Umbhobho ngamnye wentsimbikwaye akuyi kubakho kuvuza kwi weld okanye umzimba wombhobho ngexesha lovavanyo.
Uvavanyo loxinzelelo
Uxinzelelo lovavanyo lwe-hydrostatic P ye-aumbhobho wentsimbi ocacileyoingabalwa ngokusebenzisa ifomula.
P = 2St/D
Sluxinzelelo lwehupula.ixabiso lilingana nobuncinci obuchaziweyo bamandla emveliso yombhobho wentsimbi xa ipesenti, kwiMPa (psi);
tubukhulu bodonga obuchaziweyo, bubonakaliswe ngeemilimitha (ii-intshi);
Dyidayamitha yangaphandle echaziweyo, ebonakaliswa ngeemilimitha (ii-intshi).
Uhlolo olungonakaliyo
Kwiityhubhu ze-SAWiindlela ezimbini,UT(uvavanyo lwe-ultrasonic) okanyeRT(uvavanyo lweradiyographic), zidla ngokusetyenziswa.
ET(uvavanyo lwe-electromagnetic) alusebenzi kwiityhubhu ze-SAW.
I-welded seams kwimibhobho edityanisiweyo yamabakala ≥ L210/A kunye needayamitha ≥ 60.3 mm (2.375 in) iya kuhlolwa ngokungenakonakala kubukhulu obupheleleyo kunye nobude (100 %) njengoko kuchaziwe.
Uviwo lwe-UT olungonakalisi
Uviwo lwe-RT olungonakalisi
Kumbhobho we-SAW kunye ne-COW, i-welds iya kuhlolwa ngeendlela zokuhlolwa kwe-radiographic ubuncinane ubuncinane be-200 mm (8.0 in) kwisiphelo sombhobho ngamnye.in) kwisiphelo sombhobho ngamnye siya kuhlolwa ngohlolo lweradiographic.
Itshathi yeShedyuli yombhobho we-API 5L
Ukujonga ngokulula kunye nokusetyenziswa, silungiselele ishedyuli efanelekileyo yeefayile zePDF.Ungasoloko ukhuphela kwaye ujonge la maxwebhu ukuba ayafuneka.
Cacisa Idayamitha yaNgaphandle kunye nokutyeba kodonga
Amaxabiso asemgangathweni achaziweyo ngaphandle kweedayamitha kunye nobukhulu bodonga obuchaziweyo bombhobho wentsimbi bunikezelwaISO 4200kwayeASME B36.10M.
Ukunyamezelwa kweDimensional
Iimfuno ze-API 5L zonyamezelo lwe-dimensional zichazwe kwiAPI 5L iBanga B.Ukunqanda ukuphinda-phinda, unokucofa kwifonti eluhlaza ukujonga iinkcukacha ezifanelekileyo.
Iziphene eziqhelekileyo kunye nokulungiswa
Kwiityhubhu ze-SAW, ezi ziphene zilandelayo zifumaneka ngokuqhelekileyo: imiphetho ye-nibbled, i-arc burns, i-delamination, i-geometric deviations, izigaxa ezinzima, njl.
Ukungaphumeleli okufunyenwe ngokuhlola okubonakalayo kuya kuqinisekiswa, kuhlelwe, kwaye kulahlwe ngolu hlobo lulandelayo.
a) Ubunzulu ≤ 0.125t, kwaye abuchaphazeli ubuncinci obuvumelekileyo bodonga lwesiphene buya kumiselwa njengeziphene ezamkelekileyo kwaye ziyakulahlwa ngokuhambelana nezibonelelo ze-C.1.
b) Iziphene > 0.125t ubunzulu obungachaphazeliyo ubuncinci obuvumelekileyo bodonga buya kujongwa njengeziphene kwaye ziya kususwa ngokuhlaziya kwakhona ngokuhambelana ne-C.2 okanye ilahlwe ngokungqinelana ne-C.3.
c) Isiphene esichaphazela ubungqingqwa bodonga obuvumelekileyo siya kubonwa njengesiphene kwaye siyakulahlwa ngokungqinelana ne-C.3.
Ukuchongwa koMbala
Ukuba kuceliwe, uphawu lombala olumalunga ne-50 mm (2 in.) ububanzi lungapeyintwa kumphezulu ongaphakathi wombhobho ngamnye wentsimbi ukuvumela ukwahlulwa lula kwemathiriyeli eyahlukeneyo.
| IBanga lombhobho | Umbala wepeyinti |
| L320 okanye X46 | Mnyama |
| L360 okanye X52 | Luhlaza |
| L390 okanye X56 | Luhlaza |
| L415 okanye X60 | Bomvu |
| L450 okanye X65 | Mhlophe |
| L485 okanye X70 | Purple-violet |
| L555 okanye X80 | Lubhelu |
Yintoni iX70 Steel Equivalent to?
ISO 3183 - L485: Le yintsimbi yombhobho phantsi kwemigangatho yamazwe ngamazwe kwaye iyafana kwiipropati kwi-API 5L X70.
CSA Z245.1 - GR 485: Le yiCanadian Standards Association ibakala lensimbi kwimibhobho yeoli kunye negesi.
EN 10208-2 - L485MB: Le yintsimbi yombhobho phantsi koMgangatho waseYurophu wokwenziwa kwemibhobho yokuthutha ioli kunye negesi.
Ukwaleka
Asigcini nje ukubonelela abathengi bethu ngeemibhobho zentsimbi ze-X70 eziphezulu kodwa zibonelela ngeentlobo ezininzi zeenkonzo zokugubungela ukuhlangabezana neemfuno ezithile zeeprojekthi ezahlukeneyo.
Ipeyinti yokwaleka: Iipeyinti zepeyinti zendabuko zibonelela ngokhuseleko olusisiseko kwi-corrosion kwaye zifanelekile kwiindawo ezingekho ngokugqithiseleyo okanye ukukhuselwa kwexeshana.
FBE ukutyabeka: Ifakwe kumphezulu wombhobho wentsimbi ngenkqubo yokutshiza i-electrostatic ize inyangelwe bubushushu.Olu tyaba lunemichiza elungileyo kunye nokuxhathisa i-abrasion kwaye ifanelekile kwimibhobho engaphantsi komhlaba okanye engaphantsi kwamanzi.
3LPE ukutyabeka: Iquka i-epoxy coating, i-adhesive layer, kunye ne-polyethylene layer, inika ukuxhathisa okugqwesileyo kwe-corrosion kunye nokukhuselwa komatshini kwiinkqubo ezininzi zemibhobho yokuthutha phantsi komhlaba.
3LPP ukutyabeka: Ngokufana ne-3LPE, i-3LPP yokugqoka iqulethwe ngamacandelo amathathu, kodwa isebenzisa i-polypropylene njengomgangatho wangaphandle.Le ngubo inokumelana nobushushu obuphezulu kwaye ifanelekile kwimibhobho kwiindawo ezinobushushu obuphezulu.
Iingubo zingakhethwa ngokusekelwe kwindawo ethile yesicelo kunye neemfuno zombhobho ukuqinisekisa ukuthembeka kunye nokhuseleko lwe-API 5L X70 imibhobho ngexesha lenkonzo.
Izizathu zokusikhetha kwi-X70 Steel Pipe
1. Iifektri eziqinisekisiweyo ze-API 5L: Iifektri zethu zibambe isatifikethi se-API 5L, esiqinisekisa imigangatho ephezulu ukusuka kumthombo ukuya kwimveliso egqityiweyo ngenzuzo yexabiso.
2. Iindidi zemibhobho ezininzi: Asiyena nje umenzi wemibhobho yensimbi edibeneyo kodwa kunye nesitokhwe semibhobho yensimbi engenamthungo, kwaye sinokunika uluhlu olubanzi lweentlobo zepayipi ezinokuhlangabezana neemfuno ezithile zeeprojekthi ezahlukeneyo.
3. Gqibezela izixhobo ezixhasayo: Ukongeza kwipayipi yensimbi, sinokubonelela ngeeflange, ii-elbows, kunye nezinye izixhobo ezixhasayo, ukubonelela ngezixazululo zokuthengwa kweprojekthi enye.
4. Inkonzo eyenzelwe wena: Siyakwazi ukubonelela ngezisombululo ezilungiselelwe ngokweemfuno ezikhethekileyo zomthengi, kubandakanywa ukuveliswa kunye nokulungiswa kwemibhobho yensimbi eneenkcukacha ezikhethekileyo.
5. Iinkonzo ezizodwa: Ukususela ekusekweni kwayo kwi-2014, inkampani ithathe inxaxheba kwiiprojekthi ezininzi zobunjineli kwaye yaqokelela amava atyebileyo kwishishini, okwenza ukuba ibonelele ngeenkonzo ezizodwa kunye nenkxaso.
6. Ukuphendula ngokukhawuleza kunye nenkxaso: Iqela lethu lenkonzo yabathengi linokubonelela ngokukhawuleza ngempendulo kunye nenkxaso yobuchwephesha bobugcisa ukuqinisekisa ukuba iingxaki zakho kunye neemfuno zisonjululwa ngexesha elifanelekileyo.
