I-API 5L X42, eyaziwa nangokuthi i-L290, iwuhlobo lwepayipi likalayini elisetshenziswa embonini kawoyela negesi.
Izinto ezibonakalayo aamandla amancane esivuno angama-42,100 psi(290 MPa) kanye aubuncane be-tensile amandla angu-60,200 psi(415 MPa).Iphakeme ngebanga elilodwa kune-API 5L Grade B futhi ifanele izinhlelo zokusebenza zamandla amaphakathi.
I-X42 ivamise ukukhiqizwa ku-Seamless, SSAW, LSAW, kanye ne-ERW.Ama-coatings nama-finishing ayatholakala ukuze ahlangabezane nezidingo ezithile zohlelo lokusebenza.
Imibandela Yokulethwa
Ngokuya ngezimo zokulethwa kanye nezinga le-PSL, ingahlukaniswa ngale ndlela elandelayo:
PSL1: X42 noma L290;
I-PSL2: X42R, X42N, X42Q, X42M noma L290R, L290N, L290Q, L290M;
Izinhlamvu zesijobelelo se-PSL2 ngasinye zimele ukwelashwa okuhlukile kokushisa.
R: Kugingqelwe;
N: Ukujwayela;
Q: Icishiwe futhi Ithukuthele;
M: Ukwelashwa kwe-Thermo-mechanical.
Inqubo Yokukhiqiza
I-X42 ivumela inqubo yokukhiqiza elandelayo:
Uma uthola kunzima ukuqonda lezi zifinyezo, bheka ukuhlanganiswa kwethu kwama-athikiliizifinyezo ezivamile amapayipi ensimbi.
I-Botop Steel ingakunikeza ububanzi bosayizi wamapayipi njengoba kukhonjisiwe kuthebula elingezansi.
I-Supply Range yethu
Okujwayelekile: API 5L (ISO 3183);
I-PSL1: X42 noma L290;
I-PSL2: X42R, X42N, X42Q, X42M noma L290R, L290N, L290Q, L290M;
Ipayipi lensimbi elishiselwe:I-LSAW(SAWL), SSAW (HSAW), I-DSAW, ERW;
Ipayipi lensimbi elingenamthungo:I-SMLS;
Amashejuli wamapayipi: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 kanye ne-SCH160.
Ukuhlonza: I-STD (Ejwayelekile), i-XS (I-Extra Strong), i-XXS (I-Double Extra Strong);
Ukugqoka: Upende, i-varnish,I-3LPE, I-FBE, 3LPP, HDPE, galvanized, epoxy zinc-rich, usimende esindayo, njll.
Ukupakisha: Indwangu engangeni manzi, ikesi lokhuni, ibhande lensimbi noma ibhande lensimbi, ipulasitiki noma isivikelo sepayipi lensimbi, njll. Ngokwezifiso.
Imikhiqizo ehambisanayo: Ukugoba,ama-flange, ukufakwa kwamapayipi, neminye imikhiqizo efanayo iyatholakala.
I-API 5L X42 Chemical Composition
Ukwakheka Kwekhemikhali ye-PSL 1 Ipayipi eno-t ≤ 25.0 mm (0.984 in.)
Ukwakheka Kwekhemikhali ye-PSL 2 Ipayipi eno-t ≤ 25.0 mm (0.984 in.)
Ngemikhiqizo yepayipi yensimbi ye-PSL2 ehlaziywe ngeokuqukethwe kwekhabhoni okungu-≤0.12%, okulingana nekhabhoni CEpcmingabalwa kusetshenziswa ifomula elandelayo:
CEpcm= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Ngemikhiqizo yepayipi yensimbi ye-PSL2 ehlaziywe ngeokuqukethwe kwekhabhoni > 0.12%, okulingana nekhabhoni CEllwingabalwa kusetshenziswa ifomula engezansi:
CEllw= C + Mn/6 + (Cr + Mo + V)/5 + (Ni +Cu)/15
Ukwakheka Kwekhemikhali no-t ＞ 25.0 mm (0.984 in.)
Lokhu kungaxoxiswana ngakho ngokubhekisela ekwakhekeni kwamakhemikhali ngenhla.
I-API 5L X42 Mechanical Properties
I-Tensile Properties
Ukuhlolwa okuqinile kuwukuhlola okubalulekile kwezakhiwo zemishini zamashubhu ensimbi, okwazi ukukala amandla esivuno, amandla aqinile, kanye nokwelula amapharamitha abalulekile.
Amandla esivuno se-X42 ngu-42,100 psi noma 290 MPa.
Amandla we-X42 we-tensile angama-60,200 psi noma angu-415 MPa.
PSL1 X42 Tensile Properties
Izakhiwo ze-PSL2 X42 Tensile
Qaphela: Izidingo zichazwe kabanzi esigabeni seMechanical Properties sokuthiI-API 5L X52, engabukwa ngokuchofoza ifonti eluhlaza okwesibhakabhaka uma unentshisekelo.
Okunye Ukuhlolwa Kwemishini
Bend Test
Ukuhlola Ukucaba
Ukuhlolwa kwe-Guid-goba
I-CVN Impact Test yePSL 2 Pipe
Isivivinyo se-DWT se-PSL 2 Ipayipi Elishiselwe
Yiqiniso, akuwona wonke amashubhu okudingeka ahlolwe isethi egcwele yezakhiwo zemishini, kodwa kunalokho ukuhlolwa kukhethwa ngokuvumelana nohlobo lweshubhu.Izimfuneko ezithile zingatholakala kuThebula 17 no-18 wezinga le-API 5L.
Ungaphinda usithinte ukuze uthole lolu lwazi.
Ukuhlolwa kwe-Hydrostatic
Isikhathi Sokuhlola
Bonke osayizi bamashubhu ensimbi angenamthungo nashikelwe ano-D ≤ 457 mm (18 in.):isikhathi sokuhlola ≥ 5s;
Ipayipi lensimbi elishiselwe D > 457 mm (18 in.):isikhathi sokuhlola ≥ 10s.
Imvamisa Yokuhlola
Ipayipi ngalinye lensimbifuthi ngeke kube khona ukuvuza okuvela kumshini wokushisela noma wepayipi ngesikhathi sokuhlolwa.
Izingcindezi zokuhlola
I-hydrostatic test pressure P ye-aipayipi lensimbi elingenaluthoingabalwa ngokusebenzisa ifomula.
P = 2St/D
Singcindezi ye-hoop.inani lilingana namandla amancane ashiwo epayipi lensimbi xa iphesenti, ku-MPa (psi);
tubukhulu bodonga olucacisiwe, obuvezwa ngamamilimitha (amasentimitha);
Diwububanzi obushiwo bangaphandle, obuvezwa ngamamilimitha (amayintshi).
Ukuhlola Okungonakali
Okwamashubhu e-SAWizindlela ezimbili,UT(ukuhlolwa kwe-ultrasonic) nomaRT(ukuhlolwa kwe-radiographic), kuvame ukusetshenziswa.
ET(ukuhlolwa kwe-electromagnetic) akusebenzi kumashubhu e-SAW.
Izithungo ezishiselwe kumapayipi ashiselwe amabanga ≥ L210/A kanye nobubanzi ≥ 60.3 mm (2.375 in) azohlolwa ngendlela engonakalisi ukuze kubonakale ukujiya nobude obugcwele (100 %) njengoba kucacisiwe.
Ukuhlolwa kwe-UT okungabhubhisi
Ukuhlolwa kwe-RT okungabhubhisi
Wonke amashubhu angenamthungo e-PSL 2, kanye namashubhu acishiwe futhi aqinile angenamthungo e-PSL1 Ibanga B, azohlolwa ubude obugcwele (100 %) obungonakali.
Okukodwa noma inhlanganisela ye-ET (Electromagnetic Testing), UT (Ultrasonic Testing), kanye ne-MT (Magnetic Particle Testing) ingasetshenziselwa i-NDT.
I-Dimensional Tolerances
Izidingo ze-API 5L zokubekezelelana kobukhulu zichazwe kabanziI-API 5L Ibanga B.Ukuze ugweme ukuphindaphinda, ungachofoza ifonti eluhlaza okwesibhakabhaka ukuze ubuke imininingwane efanele.
Ishadi Leshejuli Yepayipi le-API 5L
Ukuze kube lula ukubuka nokusebenzisa, sihlele uhlelo olufanele lwamafayela e-PDF.Ungakwazi ukulanda futhi ubuke la madokhumenti uma kudingeka.
Ngaphezu kwalokho, i-API 5L icacisa okuvumelekile okushiwo ngaphandle kobubanzi nobukhulu bodonga olucacisiwe.
I-Dimensional Tolerances
Izidingo ze-API 5L zokubekezelelana kobukhulu zichazwe kabanziI-API 5L Ibanga B.Ukuze ugweme ukuphindaphinda, ungachofoza ifonti eluhlaza okwesibhakabhaka ukuze ubuke imininingwane efanele.
Imikhiqizo Yethu Ehlobene
Kusukela yasungulwa ngo-2014,Insimbi ye-Botopisibe ngumphakeli ohamba phambili wepayipi lensimbi ye-carbon eNyakatho yeChina, elaziwa ngomsebenzi omuhle kakhulu, imikhiqizo yekhwalithi ephezulu, nezixazululo ezibanzi.
Le nkampani inikeza izinhlobonhlobo zamapayipi ensimbi ye-carbon nemikhiqizo ehlobene, okuhlanganisa ipayipi lensimbi engenamthungo, i-ERW, i-LSAW, ne-SSAW, kanye nohlu oluphelele lokufakwa kwamapayipi nama-flange.Imikhiqizo yayo ekhethekile ihlanganisa ama-alloys asezingeni eliphezulu kanye nezinsimbi ezingenasici ze-austenitic, ezenzelwe ukuhlangabezana nezidingo zamaphrojekthi ahlukahlukene wamapayipi.
