TheAPI 5Lmuyezo mayina machubu kutengera osachepera zokolola mphamvu.Chifukwa chake,X52 (L360) ili ndi mphamvu zokolola zochepa za 52,200 psi (360 MPa).
X52=L360, ndi njira ziwiri zofotokozera mulingo womwewo wa chitoliro mu API 5L muyezo.
X52ndi giredi yapakatikati mu API 5L, kuphatikiza mphamvu zapamwamba ndi chuma.Amagwiritsidwa ntchito kwambiri pamayendedwe amafuta ndi gasi, ntchito zomanga, mapaipi apamadzi apamadzi, etc.
Botop Steelndi katswiri wopanga wandiweyani-mipanda lalikulu-m'mimba mwake awiri amaganiza kumizidwa arc LSAW zitsulo chitoliro ili mu China.
1. Malo: Mzinda wa Cangzhou, Chigawo cha Hebei, China;
2. Ndalama Zonse: 500 miliyoni RMB;
3. Malo a Fakitale: 60,000 masikweya mita;
4. Kukhoza kupanga pachaka: matani 200,000 a mapaipi achitsulo a JCOE LSAW;
5. Zipangizo: Zida zamakono zopangira ndi kuyesa;
6. Specialization: LSAW zitsulo kupanga chitoliro;
7. Chitsimikizo: API 5L yovomerezeka.
API 5L X52 Gulu
Kutengera mulingo wa PSL ndi momwe amaperekera, X52 ikhoza kugawidwa motere:
PSL1: X52;
PSL2:X52N kapena L360N;X52Q kapena L360Q;X52M kapena L360M.
Mu PSL2, kalata yowonjezera imatanthawuza mtundu wa chithandizo cha kutentha chomwe zinthu ziyenera kuchitidwa musanaperekedwe komaliza.Mutha kuwonamikhalidwe yobweretserapansipa kuti mudziwe zambiri.
Zoyenera Kutumizira
Nkhani Yoyambira
Ingots, blooms, billets, coils, kapena mbale.
Kwa PSL 2 chitoliro, chitsulocho chidzaphedwa ndikupangidwa molingana ndi machitidwe abwino a tirigu.
Koyilo kapena mbale yomwe imagwiritsidwa ntchito popanga chitoliro cha PSL 2 sichikhala ndi ma welds okonza.
API 5L X52 Manufacturing Process
Machubu a X52 amatha kupangidwa pogwiritsa ntchito njira zosiyanasiyana zopangira machubu kuti akwaniritse zosowa zaukadaulo zosiyanasiyana.
Kuti mudziwe zambiri za tanthauzo lachidule cha njira yopangira zinthu,Dinani apa.
Mtengo wa SAWLndiye akadakwanitsira yothetseralalikulu m'mimba mwake, yokhuthala-mipandamapaipi achitsulo.
Mawu akuti "Mtengo wa SAWL"ndi"Mtengo wa LSAW" Onsewa amatanthauza Longitudinal Submerged Arc Welded, koma amatchulidwa mosiyana m'madera osiyanasiyana. Mosiyana ndi zimenezi, mawu akuti "LSAW" amagwiritsidwa ntchito kwambiri pamakampani.
Chitoliro chachitsulo chingatchulidwenso kutiChithunzi cha DSAWchifukwa cha mbali ziwiri zowotcherera za arc zomwe zimagwiritsidwa ntchito popanga chitoliro.
Tiyenera kuzindikira kuti DSAW imatanthawuza njira yowotcherera, kotero pochita, ikhoza kukhala LSAW kapenaMtengo wa HSAW(SSAW) chitoliro chachitsulo.
Chitoliro cha LSAW chikhoza kuwotcherera pawiri chifukwa cha kuchepa kwa zida popanga chitoliro chachikulu, ndipo zowotcherera ziyenera kukhala pafupifupi 180 ° padera.
Mitundu Yotsiriza ya Pipe ya API 5L X52
PSL1 Mapeto a Pipe Yachitsulo: Mapeto a belled kapena Plain end;
PSL2 Mapeto a Paipi Yachitsulo: Mapeto osavuta;
Kwa malekezero a chitolirozotsatirazi ziyenera kutsatiridwa:
Nkhope zomalizira za t ≤ 3.2 mm (0.125 mu) chitoliro chakumapeto chiyenera kukhala chodulidwa.
Machubu osawoneka bwino okhala ndi t> 3.2 mm (0.125 mu) adzakulungidwa powotcherera.Mbali ya bevel iyenera kukhala 30-35 ° ndipo m'lifupi mwake muzu wa bevel uyenera kukhala 0.8 - 2.4 mm (0.031 - 0.093 mkati).
API 5L X52 Chemical Composition
Mankhwala a PSL1 ndi PSL2 chitoliro chachitsulo t> 25.0 mm (0.984 mu) chidzatsimikiziridwa ndi mgwirizano.
Mapangidwe a Chemical a PSL 1 Pipe yokhala ndi t ≤ 25.0 mm (0.984 mu.)
Mapangidwe a Chemical a PSL 2 Pipe yokhala ndi t ≤ 25.0 mm (0.984 mu.)
Pakuti PSL2 zitsulo chitoliro mankhwala kusanthula ndimpweya wa carbon ≤0.12%, mpweya wofanana ndi CEpcmzitha kuwerengedwa pogwiritsa ntchito njira iyi:
CEpcm= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Pakuti PSL2 zitsulo chitoliro mankhwala kusanthula ndimpweya wa carbon> 0.12%, mpweya wofanana ndi CEllwzitha kuwerengedwa pogwiritsa ntchito fomula ili pansipa:
CEllw= C + Mn/6 + (Cr + Mo + V)/5 + (Ni +Cu)/15
API 5L X52 Mechanical Properties
Tensile Properties
Kuyesa kwamphamvu kumayesa magawo atatu ofunikira:perekani mphamvu, kulimba kwamakokedwe,ndielongation.
PSL1 X52 Tensile Properties
PSL2 X52 Tensile Properties
Zindikirani: Kutalika kocheperako komwe kwatchulidwa, Afzidzatsimikiziridwa pogwiritsa ntchito equation yotsatirayi:
Af= C × (Axc0.2/U0.9)
Cndi 1940 powerengera pogwiritsa ntchito ma SI mayunitsi ndi 625,000 powerengera pogwiritsa ntchito ma USC;
Axc ndi gawo loyeserera loyeserera lomwe limagwiritsidwa ntchito, lomwe limawonetsedwa masikweya mamilimita (ma mainchesi akulu), motere:
1) kwa zidutswa zozungulira zoyeserera, 130 mm2(0.20 mu2) kwa 12.7 mm (0.500 mu.) ndi 8.9 mm (0.350 mu.) zidutswa zoyesa m'mimba mwake;65 mm pa2(0.10 mu2) kwa 6.4 mm (0.250 mu.) zidutswa zoyesa m'mimba mwake;
2) pazigawo zonse zoyeserera, zochepa za a) 485 mm2(0.75 mu2) ndi b) gawo la gawo lachiyeso, T lotengedwa pogwiritsa ntchito mawonekedwe akunja akunja ndi makulidwe a khoma la chitoliro, ozungulira mpaka 10 mm wapafupi.2(0.01 mu2);
3) pa zidutswa zoyeserera, zochepa za a) 485 mm2(0.75 mu2) ndi b) gawo la gawo la gawo loyeserera, lotengedwa pogwiritsa ntchito m'lifupi mwake la chidutswa choyesera ndi makulidwe a khoma la chitoliro, mozungulira mpaka 10 mm.2(0.01 mu2);
Undi mphamvu yocheperako yokhazikika, yowonetsedwa mu megapascals (mapaundi pa inchi imodzi).
Zoyesera Zina Zamakina
Pulogalamu yoyeserera yotsatirayi ikugwira ntchito kwaMitundu ya mapaipi a SAW.Pamitundu ina ya mapaipi, onani Table 17 ndi 18 ya API 5L.
Weld Guide kupinda mayeso;
Kuzizira-kupangidwa welded chitoliro kuuma mayeso;
Kuyang'ana kwakukulu kwa msoko wowotcherera;
ndipo kokha kwa PSL2 zitsulo chitoliro: CVN zotsatira mayeso ndi DWT mayeso.
Kuyesedwa kwa Hydrostatic
Nthawi Yoyesera
Miyezo yonse yamachubu achitsulo opanda msoko ndi otsekemera okhala ndi D ≤ 457 mm (18 in.):nthawi yoyesera ≥ 5s;
Chitoliro chachitsulo chowotcherera D> 457 mm (18 in.):nthawi yoyesera ≥ 10s.
Kuyeserera pafupipafupi
Chitoliro chilichonse chachitsulo.
Zovuta zoyesa
Kuthamanga kwa hydrostatic test P achitoliro chachitsulo chosamveka bwinoikhoza kuwerengedwa pogwiritsa ntchito fomula.
P = 2St/D
Sndi hoop stress.mtengowo ndi wofanana ndi mphamvu zokolola zochepa za chitoliro chachitsulo ngati peresenti, mu MPa (psi);
tndi makulidwe otchulidwa khoma, owonetsedwa mu millimeters ( mainchesi);
Dndi m'mimba mwake wotchulidwa kunja, wowonetsedwa mu millimeters ( mainchesi).
Nondestructive Inspection
Kwa machubu a SAWnjira ziwiri,UT(kuyesa kwa ultrasonic) kapenaRT(kuyesa kwa radiographic), nthawi zambiri amagwiritsidwa ntchito.
ET(kuyesa kwamagetsi) sikugwira ntchito ku machubu a SAW.
Zowotcherera pamapaipi opangidwa ndi giredi ≥ L210/A ndi mainchesi ≥ 60.3 mm (2.375 mu) aziyang'aniridwa mopanda kuwononga makulidwe onse ndi kutalika (100 %) monga zafotokozedwera.
UT mayeso osawononga
RT kufufuza kosawononga
Kukula kwa Cold ndi Kukulitsa Kozizira
Kuzizira kozizira komanso kukulitsa kuzizira ndi njira ziwiri zomwe zimagwiritsidwa ntchito popanga machubu a LSAW kuwonetsetsa kuti machubu amakwaniritsa miyeso yolondola komanso makina amakina.Njira zonsezi ndizozizira zogwirira ntchito, pomwe mawonekedwe ndi kukula kwa chubu zimasinthidwa kutentha.
Chiyerekezo cha sizing chakukulitsa koziziramachubu sadzakhala ochepera 0.003 ndipo sadzakhala wamkulu kuposa 0.015.
Mtengo wa saiziozizira kakulidweChitoliro chachitsulo sichikhala chachikulu kuposa 0.015, kupatula muzochitika zotsatirazi:
a) Chitolirocho chimakhala chokhazikika kapena kuzimitsidwa ndikupsya mtima;
b) Chubu chonse chachitsulo chozizira kwambiri chimachepetsedwa.
Tchulani Diameter Yakunja ndi Makulidwe a Khoma
Miyezo yokhazikika ya ma diameter akunja ndi makulidwe a khoma la chitoliro chachitsulo amaperekedwaISO 4200ndiASME B36.10M.
Dimensional Tolerances
Chonde dinani font ya buluu kumanja kuti muwone kulolerana kwazithunzi, zofunikira zalembedwa muAPI 5L Gulu Bzatsatanetsatane.
Mapulogalamu a API 5L X52
Chitoliro chachitsulo cha API 5L X52 chimagwiritsidwa ntchito kwambiri pazinthu zingapo zovuta chifukwa cha makina ake abwino kwambiri komanso kuthekera kosinthira kumadera ovuta.
Kuyendetsa mafuta ndi gasi: Ichi ndi chimodzi mwazofala kwambiri pa API 5L X52.Amagwiritsidwa ntchito kwambiri pamapaipi oyendera mafuta ndi gasi mtunda wautali, makamaka pakakhala kupanikizika kwambiri mkati.
Zomangamanga ndi zomangamanga: Itha kugwiritsidwa ntchito pomanga zida zothandizira milatho ndi nyumba.Itha kugwiritsidwanso ntchito popanga zingwe kapena zida zina zonyamula katundu, makamaka pomwe zipatala zazitali kapena zida zonyamula katundu zimafunika.
Mapaipi a subsea: Mapulojekiti a mapaipi a subsea amafunikira kwambiri mapaipi osagwirizana ndi dzimbiri komanso amphamvu kwambiri, ndipo API 5L X52 imapambana pankhaniyi.Imakana madzi a m'nyanja ndikusunga kukhulupirika ndi magwiridwe antchito a payipi, ndikupangitsa kuti ikhale yabwino kulumikiza kuzinthu zamafuta ndi gasi zakunyanja.
Mtundu Wathu Wopereka
Standard: API 5L;
PSL1: X52 kapena L360;
PSL2: X52N, X52Q, X52M kapena L360N, L360Q, L360M;
Mtundu wa Chitoliro: Chitoliro cha Chitsulo cha Carbon Welded;
Njira Yopangira: LSAW, SAWL kapena DSAW;
Kunja Kunja: 350 - 1500;
Makulidwe a khoma: 8 - 80mm;
Utali: Utali pafupifupi kapena utali wachisawawa;
Mayendedwe a Chitoliro: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 ndi SCH160.
Chizindikiritso: STD, XS, XXS;
Kupaka: Paint, varnish, 3LPE, FBE, 3LPP, HDPE, malata, epoxy zinc-rich, simenti yolemera, etc.
atanyamula: Madzi nsalu, matabwa mlandu, zitsulo lamba kapena zitsulo waya bundling, pulasitiki kapena chitsulo chitoliro mapeto mtetezi, etc. Mwamakonda.
Zogulitsa Zofananira: Ma bend, ma flanges, zopangira mapaipi, ndi zinthu zina zofananira zilipo.
