Zvakanakira zveKaviri Submerged Arc Welded Gasi Mutsetse Pipe
Munyika yepombi dzemvura, kune nzira dzakasiyana-siyana dzekuvaka uye zvinhu.Iyo yakakurumbira pombi yekubatanidza nzira ndeye kaviri-inopera submerged arc welding (DSAW).Iyi nzira inowanzoshandiswa pamagasi nemvura mitsetse, uye nechikonzero chakanaka.Mune ino blog isu tichaongorora zvakanakira kushandisakaviri yakanyura arc yakasungwapombi muzvikumbiro izvi.
Iyo Mechanical Properties yepombi yeSSAW
| simbi giredhi | shoma goho simba | shoma Tensile simba | Minimum Elongation |
| B | 245 | 415 | 23 |
| X42 | 290 | 415 | 23 |
| X46 | 320 | 435 | 22 |
| X52 | 360 | 460 | 21 |
| X56 | 390 | 490 | 19 |
| X60 | 415 | 520 | 18 |
| X65 | 450 | 535 | 18 |
| X70 | 485 | 570 | 17 |
Iyo Chemical kuumbwa kweSSAW mapaipi
| simbi giredhi | C | Mn | P | S | V+Nb+Ti |
| Max% | Max% | Max% | Max% | Max% | |
| B | 0.26 | 1.2 | 0.03 | 0.03 | 0.15 |
| X42 | 0.26 | 1.3 | 0.03 | 0.03 | 0.15 |
| X46 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X52 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X56 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X60 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X65 | 0.26 | 1.45 | 0.03 | 0.03 | 0.15 |
| X70 | 0.26 | 1.65 | 0.03 | 0.03 | 0.15 |
Iyo geometric kushivirira kweSSAW mapaipi
| Geometric tolerances | ||||||||||
| kunze dhayamita | Kukora kwemadziro | kutwasanuka | kunze-kwe-kutenderera | mass | Maximum weld bead urefu | |||||
| D | T | |||||||||
| ≤1422mm | 1422mm | ＜15mm | ≥15mm | pombi kupera 1.5m | hurefu hwakazara | pombi muviri | pombi kupera | T≤13mm | T＞13mm | |
| ±0.5% | sezvakabvumiranwa | ±10% | ± 1.5mm | 3.2mm | 0.2% L | 0.020D | 0.015D | '+10% | 3.5mm | 4.8mm |
Hydrostatic Test
Iyo pombi inoshingirira bvunzo ye hydrostatic pasina kubuda kuburikidza nemusono we weld kana muviri wepombi
Majoini haafanire kuongororwa hydrostatically, kunze kwekunge zvikamu zvepombi zvakashandiswa mukumaka majoini zvakabudirira kuongororwa hydrostatically kusati kwajoinha oparesheni.
Kutanga, kaviri yakanyura arc welding inzira inoshanda uye ine mari yekubatanidza mapaipi.Maitiro acho anosanganisira kugadzira weld nekunyudza pombi mune granular flux uchishandisa maviri welding arcs.Izvi zvinogadzira weld yakasimba uye yakasimba iyo inogona kumirisana nekumanikidza kwakanyanya uye kushushikana, zvichiita kuti ive yakanakira gasi nemvura mitsetse.
Imwe yemabhenefiti makuru epaviri yakanyura arc welded pombi ndeyekupokana kwayo.Iyo granular flux inoshandiswa mune iyi welding process inogadzira danda rekudzivirira pamusoro peiyo weld, inobatsira kudzivirira ngura uye kuwedzera hupenyu hwepombi.Izvi zvakanyanya kukosha kunemvura line tubing, sezvo ichivimbisa kuti mvura inounzwa inoramba yakachena uye isina kusvibiswa.
Pamusoro pekupokana necorrosion, kaviri akanyudzwa arc welded pombi inopa yakanakisa mechaniki zvivakwa.Iyi nzira inogadzira welds yunifomu uye pombi yakasimba uye yakavimbika.Izvi zvakakosha pamapombi egasi chaiwo sezvo ichichengetedza kufambisa kwakachengeteka uye kwakanaka kwegasi rechisikigo pasina njodzi yekuvuza kana kutadza.
Pamusoro pezvo, kaviri akanyura arc welded mapaipi anokwanisa kumira zvakanyanya tembiricha uye mamiriro ezvakatipoteredza.Izvi zvinoita kuti ive yakanakira kune onshore uye offshore application iyo inogona kuratidzwa kune yakaoma mamiriro ekunze uye nemamiriro ekushanda.Pamvura yemutsetse wechubhu, kusimba uku kunovimbisa kuti mapaipi anogona kufambisa mvura zvakanaka pasina kukanganisa kushanda.
Imwe mukana wekushandisa kaviri yakanyura arc welded pombi ndeyekuti nzvimbo yayo yakatsetseka uye yakanaka.Izvi zvinovaita sarudzo inoyevedza yekumisikidza pamusoro-uye pazasi-pasi, sezvo zviri nyore kuongorora nekuchengetedza.Pamusoro pezvo, iyo yakatsetseka pamusoro peiyo weld inoderedza kukweshera uye kudonhedza kudonha mukati mepombi, zvichibatsira kuvandudza kushanda kwese kwegasi nemvura yekuunza masisitimu.
Mukupedzisa, kaviri yakanyura arc welded pombi isarudzo inobatsira kwazvogas line pipeuye mvura line tubing.Iyo inoshanda uye inodhura-inoshanda welding process, yakasanganiswa necorrosion resistance, yakanakisa michina zvivakwa, kusimba uye aesthetics, inoita kuti ive sarudzo yekutanga yekuvaka pombi.Kungave kutakura gasi rechisikigo kana mvura, mapaipi aya anopa simba uye kuvimbika kunodiwa kuti ushande zvakachengeteka uye nemazvo.Zviripachena, kaviri-layer yakanyudzwa arc welded pombi chinhu chakakosha munyika yekuvaka pombi.
