API 5L X70 (L485)wani nau'in bututun ƙarfe ne da ake amfani da shi a masana'antar mai da iskar gas don tsarin jigilar bututun, wanda aka sanya wa suna bayan mafi ƙarancinsaƙarfin yawan amfanin ƙasa na 70,300 psi (485 MPa), kuma ya ƙunshi nau'ikan bututun da ba su da matsala da kuma waɗanda aka haɗa, kuma an raba shi zuwa matakai biyu na ƙayyade samfura, PSL1 da PSL2. A cikin PSL1, X70 shine mafi girman matakin, yayin da a cikin PSL2 shi ma yana ɗaya daga cikin manyan matakan bututun ƙarfe.
Bututun ƙarfe na API 5L X70 ya dace musamman da buƙatun jigilar kaya mai nisa da matsin lamba mai yawa saboda ƙarfinsa da juriyarsa ga matsin lamba. Domin jure matsin lamba mai yawa, galibi ana ƙera bututun ƙarfe na X70 da kauri bango don tabbatar da isasshen ƙarfi da dorewa.
Botop Karfeƙwararriyar masana'anta ce ta kera bututun ƙarfe na LSAW mai kauri mai faɗin bango biyu mai kusurwa biyu wanda ke cikin ruwa a China.
Wuri: Birnin Cangzhou, Lardin Hebei, China;
Jimlar Zuba Jari: RMB miliyan 500;
Yankin masana'anta: murabba'in mita 60,000;
Yawan samar da bututun ƙarfe na JCOE LSAW na shekara-shekara: tan 200,000;
Kayan aiki: Kayan aiki na zamani da gwaji;
Ƙwarewa: Samar da bututun ƙarfe na LSAW;
Takaddun shaida: An tabbatar da API 5L.
Yanayin Isarwa
Yanayin isarwa shine yanayin da bututun ƙarfe mai zafi ko kuma wanda aka sarrafa shi lokacin da aka shirya don isar da shi ga abokin ciniki bayan ƙera shi. Yanayin isarwa yana da mahimmanci don tabbatar da cewa bututun yana da halayen injiniya da kuma ingancin tsarinsa.
Dangane da matakin PSL da yanayin isarwa, ana iya rarraba X70 kamar haka:
PSL1: X70 (L485);
PSL2: X70Q (L485Q) da X70M (L485M);
Haruffan kari na PSL2 Q da M suna tsaye ne bi da bi:
Q: An huce kuma an huce
M: An yi amfani da thermomechanical ko thermomechanical a matsayin abin da aka yi amfani da shi a thermomechanical;
Tsarin ƙera API 5L X70 Mai Karɓa
Tsarin kera X70 ya haɗa da duka biyunbabu matsala kuma an haɗa shi da weldedsiffofin, waɗanda za a iya rarraba su kamar haka:
Daga cikin waɗannan,SAWL(LSAW) ita ce hanya mafi yawan amfani da ita wajen samar da hanyoyin walda na X70 kuma tana da fa'ida wajen samar da bututun ƙarfe mai girman kauri da babban diamita.
Duk da cewa har yanzu ana ɗaukar bututun ƙarfe marasa shinge a matsayin zaɓi mafi dacewa saboda halayensu a wasu yanayi masu tsauri, matsakaicin diamita na bututun ƙarfe marasa shinge da aka samar yawanci yana iyakance ga mm 660. Wannan iyakance girman na iya zama matsala idan aka fuskanci manyan ayyukan bututun sufuri na nesa.
Sabanin haka, tsarin LSAW yana da ikon samar da bututu masu diamita har zuwa mm 1,500 da kauri na bango har zuwa mm 80. Kuma farashin zai iya zama mafi inganci fiye da ƙarfe mara shinge.
Tsarin Sinadaran API 5L X70
Sinadaran da aka Haɗa don Bututun PSL 1 tare da t ≤ 25.0 mm (inci 0.984)
Sinadaran da aka yi amfani da su wajen hada bututun PSL 2 tare da t ≤ 25.0 mm (inci 0.984)
Don samfuran bututun ƙarfe na PSL2 da aka bincika tare dasinadarin carbon na ≤0.12%, daidai da carbon CEkwamfutaana iya ƙididdige shi ta amfani da dabarar da ke ƙasa:
CEkwamfuta= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Don samfuran bututun ƙarfe na PSL2 da aka bincika tare dasinadarin carbon > 0.12%, daidai da carbon CEllwana iya ƙididdige shi ta amfani da dabarar da ke ƙasa:
CEllw= C + Mn/6 + (Cr + Mo + V)/5 + (Ni +Cu)/15
Sinadaran da aka haɗa da t ＞ 25.0 mm (inci 0.984)
Za a tantance shi ta hanyar tattaunawa kuma a gyara shi zuwa ga wani tsari mai dacewa bisa ga buƙatun sinadaran da ke sama.
Kayayyakin Inji na API 5L X70
Halayen Tashin Hankali
Kayayyakin Tensile na PSL1 X70
Kayayyakin Tensile na PSL2 X70
Bayani: An yi cikakken bayani game da buƙatun a cikinAPI 5L X52, wanda za a iya gani idan ana buƙata.
Sauran Gwaje-gwajen Inji
Shirin gwaji mai zuwaya shafi nau'ikan bututun ƙarfe na SAW kawai.
gwajin lanƙwasa jagora na walda;
Gwajin taurin bututun da aka ƙera da sanyi;
Binciken Macro na dinkin da aka ƙera;
kuma kawai don bututun ƙarfe na PSL2: gwajin tasirin CVN da gwajin DWT.
Ana iya samun samfuran gwaji da mitoci na gwaji na wasu nau'ikan bututu a cikin Tebur 17 da 18 na ma'aunin API 5L.
Gwajin Hydrostatic
Lokacin Gwaji
Duk girman bututun ƙarfe marasa sumul da na walda waɗanda girmansu ya kai D ≤ 457 mm (inci 18):Lokacin gwaji ≥ 5s;
Bututun ƙarfe mai walda D > 457 mm (inci 18):Lokacin gwaji ≥ 10s.
Mita na Gwaji
Kowace bututun ƙarfekuma ba za a sami ɓuɓɓuga daga jikin walda ko bututu ba yayin gwajin.
Matsi na gwaji
Matsin gwajin hydrostatic P na abututun ƙarfe mai sauƙiana iya ƙididdige ta ta amfani da dabarar.
P = 2St/D
Sshine matsin lamba na ƙwallo. ƙimar daidai take da ƙayyadadden ƙarfin yawan amfanin da aka ƙayyade na bututun ƙarfe xa kashi, a cikin MPa (psi);
tshine kauri na bango da aka ƙayyade, wanda aka bayyana a cikin milimita (inci);
Dshine diamita na waje da aka ƙayyade, wanda aka bayyana a cikin millimeters (inci).
Binciken da ba ya lalatawa
Ga bututun SAWhanyoyi guda biyu,UT(gwajin ultrasonic) koRT(gwajin rediyo), yawanci ana amfani da su.
ET(gwajin lantarki) bai shafi bututun SAW ba.
Za a duba dinkin da aka yi da walda a kan bututun da aka haɗa masu maki ≥ L210/A da diamita ≥ 60.3 mm (inci 2.375) ba tare da lalata su ba don ganin cikakken kauri da tsayi (100%) kamar yadda aka ƙayyade.
Gwajin UT mara lalatawa
Jarrabawar RT mara lalatawa
Ga bututun SAW da na saniya, za a duba walda ta hanyar amfani da hanyoyin duba rediyo a cikin aƙalla inci 200 (inci 8.0) na kowane ƙarshen bututu na kowane ƙarshen bututu ta hanyar duba rediyo.
Jadawalin Jadawalin Bututun API 5L
Domin sauƙin kallo da amfani, mun tsara fayilolin PDF masu dacewa. Kuna iya saukewa da duba waɗannan takardu idan ana buƙata.
A ƙayyade diamita ta waje da kauri a bango
An bayar da ƙimar da aka daidaita don takamaiman diamita na waje da kauri na bango na bututun ƙarfe a cikinISO 4200kumaASME B36.10M.
Juriyar Girma
An yi cikakken bayani game da buƙatun API 5L don haƙurin girma a cikinAPI 5L Grade BDomin gujewa maimaitawa, za ka iya danna kan rubutun shuɗi don ganin cikakkun bayanai masu dacewa.
Lalacewar da Gyaran da Aka Yi a Kullum
Ga bututun SAW, ana samun waɗannan lahani kamar haka: gefuna masu laushi, ƙonewar baka, ɓarna, karkacewar geometric, ƙuraje masu tauri, da sauransu.
Za a tabbatar da ƙarancin da aka samu ta hanyar duba ido, a rarraba su, sannan a kawar da su kamar haka.
a) Zurfin ≤ 0.125t, kuma bai shafi mafi ƙarancin kauri na bango da aka yarda da shi ba, za a tantance shi a matsayin lahani da aka yarda da su kuma a zubar da su bisa ga tanadin C.1.
b) Lalacewar da ta fi zurfin tan 0.125t wanda ba ta shafi mafi ƙarancin kauri na bango da aka yarda ba za a ɗauka a matsayin lahani kuma za a cire ta ta hanyar sake kaifi daidai da C.2 ko a zubar da shi daidai da C.3.
c) Lalacewar da ta shafi mafi ƙarancin kauri na bango da aka yarda da shi za a gane ta a matsayin lahani kuma za a zubar da ita bisa ga ƙa'idar C.3.
Gano Launi
Idan an buƙata, za a iya fentin launin da ke da diamita kusan mm 50 (inci 2) a saman ciki na kowane bututun ƙarfe don ba da damar bambance kayan daban-daban cikin sauƙi.
| Bututu Grade | Launin Fenti |
| L320 ko X46 | Baƙi |
| L360 ko X52 | Kore |
| L390 ko X56 | Shuɗi |
| L415 ko X60 | Ja |
| L450 ko X65 | Fari |
| L485 ko X70 | Shuɗi-violet |
| L555 ko X80 | Rawaya |
Menene Daidaiton Karfe na X70?
ISO 3183 - L485: Wannan ƙarfe ne na bututun mai a ƙarƙashin ƙa'idodin ƙasashen duniya kuma yana kama da na API 5L X70.
CSA Z245.1 - GR 485: Wannan wani nau'in ƙarfe ne na Ƙungiyar Ma'aunin Kanada don bututun mai da iskar gas.
EN 10208-2 - L485MB: Wannan ƙarfe ne na bututun mai a ƙarƙashin ƙa'idar Turai don ƙera bututun mai don jigilar mai da iskar gas.
Shafi
Ba wai kawai muna ba wa abokan cinikinmu bututun ƙarfe na X70 masu inganci ba, har ma muna ba da nau'ikan ayyukan rufi iri-iri don biyan buƙatun takamaiman ayyuka daban-daban.
Rufin fentiRufin fenti na gargajiya yana ba da kariya ta asali daga tsatsa kuma ya dace da muhalli mara tsauri ko kariya ta wucin gadi.
Shafi na FBE: Ana shafa shi a saman bututun ƙarfe ta hanyar fesawa ta hanyar amfani da na'urar lantarki sannan a warke ta hanyar zafi. Wannan murfin yana da kyakkyawan juriya ga sinadarai da gogewa kuma ya dace da bututun ƙarƙashin ƙasa ko na ƙarƙashin ruwa.
Shafi na 3LPE: Ya ƙunshi rufin epoxy, wani Layer mai mannewa, da kuma wani Layer na polyethylene, yana ba da kyakkyawan juriya ga tsatsa da kuma kariya daga injiniya ga tsarin bututun jigilar kaya na ƙarƙashin ƙasa iri-iri.
Rufin 3LPP: Kamar 3LPE, murfin 3LPP ya ƙunshi layuka uku, amma yana amfani da polypropylene a matsayin layin waje. Wannan murfin yana da juriyar zafi mafi girma kuma ya dace da bututu a cikin yanayin zafi mai yawa.
Ana iya zaɓar murfin bisa ga takamaiman yanayin aikace-aikacen da buƙatun bututun don tabbatar da aminci da amincin bututun API 5L X70 yayin aiki.
Dalilan Zaɓar Mu Don Bututun Karfe na X70
1. Masana'antun da aka ba da takardar shaida na API 5L: Masana'antunmu suna da takardar shaidar API 5L, wanda ke tabbatar da inganci mai kyau daga tushe zuwa samfurin da aka gama tare da fa'idar farashi.
2. Nau'ikan bututu da yawa: Ba wai kawai mu kera bututun ƙarfe da aka haɗa da walda ba ne, har ma da masu tara bututun ƙarfe marasa shinge, kuma za mu iya bayar da nau'ikan bututu iri-iri waɗanda za su iya biyan buƙatun takamaiman ayyuka daban-daban.
3. Cikakken kayan tallafi: Baya ga bututun ƙarfe, za mu iya samar da flanges, gwiwar hannu, da sauran kayan tallafi, muna samar da mafita ta hanyar siyan kayan aiki na tsayawa ɗaya don aikinku.
4. Sabis na musamman: Muna iya samar da mafita na musamman bisa ga takamaiman buƙatun abokin ciniki, gami da samarwa da sarrafa bututun ƙarfe tare da takamaiman bayanai na musamman.
5. Ayyuka na musammanTun lokacin da aka kafa kamfanin a shekarar 2014, kamfanin ya shiga cikin ayyukan injiniya da dama kuma ya tara ƙwarewa mai yawa a masana'antar, wanda hakan ya ba shi damar samar da ayyuka na musamman da tallafi.
6. Amsawa da tallafi cikin sauri: Ƙungiyar kula da abokan cinikinmu za ta iya ba da amsa cikin sauri da kuma tallafin fasaha na ƙwararru don tabbatar da cewa an magance matsalolinku da buƙatunku cikin lokaci.
