Standard specifications

API 5L kazhinji inoreva chiyero chekuuraya chepiipi yemutsetse. Mutsara pombi zvinosanganisira musono simbi pombi uye welded simbi pombi. Parizvino, anowanzo shandiswa welded simbi pombi mhando pamapaipi emafuta anosanganisira spiral submerged arc welded pombi (SSAW), yakatwasuka musono yakanyura arc welded pombi (LSAW), uye yemagetsi kuramba welded pombi (RW). Mapombi esimbi asina musono anowanzo kusarudzwa kana pombi dhayamita isingasviki 152mm.

Iyo yenyika yakajairwa GB/T 9711-2011 Simbi mapaipi emafuta uye gasi indasitiri pombi yekufambisa masisitimu inoumbwa zvichibva paAPI 5L.

GB/T 9711-2011 inotsanangura zvinodikanwa zvekugadzira mapaipi esimbi asina musono uye mapaipi esimbi akaiswa pamazinga maviri echigadzirwa (PSL1 nePSL2) anoshandiswa muoiri uye gasi indasitiri pombi yekufambisa masisitimu. Naizvozvo, chiyero ichi chinoshanda chete kumapombi esimbi asina musono uye mapombi esimbi akakwenenzverwa ekufambisa oiri negesi, uye haashande kumapombi esimbi.

Simbi giredhi

The raw material simbi mamakisi eAPI 5Lmapaipi esimbi anosanganisira GR.B,X42, X46, X52, X56, X60, X70, X80, etc. Different simbi mamakisi esimbi pombi vane zvakasiyana zvinodiwa nokuda mbishi zvinhu uye kugadzirwa, asi kabhoni yakaenzana pakati siyana simbi mamakisi inodzorwa zvakasimba.

Quality Standard

Mune iyo API 5L simbi pombi mwero, zviyero zvemhando (kana zvinodiwa) zvemapombi esimbi zvakakamurwa kuita PSL1 uye PSL2. PSL ndiyo chidimbu cheyero yechigadzirwa.

PSL1 inopa zvakajairika pombi simbi pombi yemhando zvinodiwa; PSL2 inowedzera zvinosungirwa zvinodiwa zvemakemikari kuumbwa, notch kuoma, simba zvivakwa uye yekuwedzera NDE.

Simbi pombi giredhi yePSL1 simbi pombi (zita rinoratidza simba repombi yesimbi, senge L290, 290 inoreva kushoma kwegoho remuviri wepombi i290MPa) uye giredhi resimbi (kana giredhi, senge X42, uko 42 inomiririra kusimba kwegoho shoma kana denderedzwa repamusoro Simba regoho shoma repombi yesimbi (mu psi) yakafanana neyepombi yesimbi Inoumbwa nemavara kana nhamba yakavhenganiswa yemavara uye nhamba dzinoratidza chiyero chesimba yepombi yesimbi, uye giredhi yesimbi yakabatana nemakemikari esimbi.

PSL2 mapaipi esimbi anoumbwa nemavara kana musanganiswa wemabhii nenhamba dzinoshandiswa kuratidza kusimba kwepombi yesimbi. Zita resimbi (simbi giredhi) rinoenderana nekemikari yesimbi. Inosanganisirawo tsamba imwe chete (R, N, Q kana M) inoumba suffix, iyo inoratidza mamiriro ekutumira. Kune PSL2, mushure memamiriro ekutumira, kune zvakare tsamba S (asidhi sevhisi nharaunda) kana O (marine service environment) inoratidza chimiro chebasa.

Quality Standard Comparison

1. Chiyero chemhando yePSL2 yakakwirira kudarika yePSL1. Aya mazinga maviri ekutsanangurwa haangove ane akasiyana ekuongorora zvinodiwa, asi zvakare ane akasiyana zvinodiwa zvemakemikari kuumbwa uye michina zvinhu. Nokudaro, kana uchirayira maererano ne API 5L, mazwi ari muchibvumirano haafaniri kungoratidza zvinyorwa, makirasi esimbi, nezvimwewo. Mukuwedzera kune zviratidzo zvinowanzoonekwa, chiyero chekugadzirisa chigadzirwa chinofanirawo kuratidzwa, kureva, PSL1 kana PSL2. PSL2 yakaomarara kupfuura PSL1 maererano nekuumbwa kwemakemikari, tensile zvivakwa, simba rekuita, kuyedza kusingaparadze uye zvimwe zviratidzo.

2. PSL1 haidi kukanganisa kushanda. Kune ese magiredhi esimbi ePSL2 kunze kweX80 simbi giredhi, saizi yakazara 0℃ Akv average: longitudinal ≥101J, transverse ≥68J.

3. Mitsara yepombi inofanira kuongororwa hydraulic pressure imwe neimwe, uye chiyero hachirevi kuti kusina-kuparadza kutsiva kwemvura kunobvumirwa. Uyu zvakare musiyano mukuru pakati pe API zviyero uye Chinese zviyero. PSL1 haidi kuongororwa kusingaparadzi, nepo PSL2 ichida kuongororwa kusingaparadze imwe neimwe.