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Offshore Floating Storage Vessel (FPSO) inzvimbo yakazara yemafuta ekumahombekombe inobatanidza kuchengetedza, kupatsanura uye kutakura kwezvigadzirwa zvemafuta asina kuchena. Mafuta asina kuchena anogadzirwa kubva mumatsime epasi pegungwa anogamuchirwa kuburikidza nemapaipi epasi pegungwa, anogadziriswa muchikepe uye anochengetwa mumatangi anotakura zvinhu, uko anozoendeswa kunotakurwa matangi kuburikidza nehurongwa hwekuburutsa.
Super duplex simbi isina tsvina ine yakakwira molybdenum yemukati, iyo inovandudza zvakanyanya kushorwa kwesimbi isina tsvina, iyo yakakodzera kwazvo kushandiswa kwenguva refu munzvimbo dzine yakakwira chloride ion content, semvura yegungwa, uye inoshandiswa zvakanyanya mumavharuvhu ekuchengetedza, mapaipi. , desulfurization shongwe uye zvimwe zvikamu muFPSO modules.
Vatengi vakadaro kazhinji vane zvinotevera zvinodikanwa zvekuisa simbi zvivakwa zvewelding zvinodyiwa zve super duplex Stainless simbi (inofananidzira base simbi UNS S32750/S32760, nezvimwewo):
| Kusimba simba (Mpa) | Tensile urefu (%) | Ferrite (Muedzo) | Pitting corrosion (40℃*24h) ASTM G48A | Kuoma HV10 | pitting index PREN |
| ≥750 | ≥20 | 35-65% | ≤4g/m2 | ≤330 | ≥40 |
Kune hunhu hwewelding uye zvine chekuita nehunyanzvi zvinodiwa zve super duplex simbi isina tsvina, kambani yedu ine inoenderana welding zvinoshandiswa kuti zvienderane, izvo zvinotsanangurwa sezvizvi:
Kufananidza welding zvinodyiwa
| Welding wire category | SS Argon arc welding waya | SS ruoko welding tsvimbo | SS flux cored welding waya | SS yakanyura arc welding waya |
| zita rechigadzirwa | GTS-2594 | GES-2594 | GFS-2594 | GWS-2594 GXS-330 |
| kushandisa mwero | AWS A5.9/5.9M-2017 ER2594 | AWS A5.4/5.4M-2012 ER2594-16 | AWS A5.22/5.22M-2012 ER2594T1-1 | AWS A5.9/5.9M-2017 ER2594 |
Typical composition
| zita rechigadzirwa | GTS-2594 | GES-2594 | GFS-2594 | GWS-2594 | |
| Alloy wt% | C | 0.012 | 0.017 | 0.022 | 0.017 |
| Mn | 0.62 | 1.05 | 0.76 | 0.42 | |
| Si | 0.45 | 0.40 | 0.49 | 0.64 | |
| Ni | 8.46 | 8.49 | 8.36 | 8.48 | |
| Cr | 25.02 | 25.69 | 24.2 | 24.88 | |
| Mo | 3.86 | 3.96 | 3.65 | 3.85 | |
| P | 0.022 | 0.019 | 0.016 | 0.023 | |
| S | 0.001 | 0.005 | 0.003 | 0.001 | |
| W | 0.02 | 0.01 | 0.01 | 0.04 | |
| N | 0.24 | 0.22 | 0.27 | 0.24 | |
| PREN* | 41.6 | 42.2 | 40.5 | 41.4 | |
| Remark | Filler metal | Deposition metal | Filler metal | Deposition metal | |
Typical mechanical properties
| zita rechigadzirwa | GTS-2594 | GES-2594 | GFS-2594 | GWS-2594 GXS-330 |
| Kusimba simba (Mpa) | 853 | 920 | 881 | 889 |
| Tensile urefu (%) | 31 | 26 | 25 | 26 |
| Impact absorption simba (J/℃) | 240/-46 | 51/-46 | 50/-40 | 56/-46 |
| Ferrite (Muedzo) | 49% | 43% | 36% | 40% |
| Kuoma HV10 | 280 | 295 | 289 | 292 |
| pitting PREN | 2.5g/m3 | 2.8g/m3 | 2.9g/m3 | 2.7g/m3 |
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Nguva yekutumira: Nov-15-2022