Kuvandudza Kutendeseka Kwechimiro: Spiral Welded Carbon Steel Pipe muMetal Pipe Welding process.
Introduce
Unyanzvi hwesimbi pombi weldinginoda kuwirirana kusanganiswa kwehunyanzvi, kurongeka uye zvemhando yepamusoro kuti ive nechokwadi chekuvimbika kwechimiro kune akasiyana maapplication.Pakati pemhando dzakawanda dzepombi, spiral welded carbon steel pombi, senge X42 SSAW pombi, inozivikanwa nekuda kwesimba rayo repamusoro, kusimba uye kuita mari.Mune ino blog, isu tichaongorora kukosha kwe spirally welded kabhoni simbi mapaipi musimbi pombi welding process, tichiongorora maitiro ayo ekugadzira, zvakanakira uye nzvimbo dzekushandisa.
Mechanical Property
| simbi giredhi | shoma goho simba | Kusimba simba | Minimum elongation | Minimum impact simba | ||||
| Mpa | % | J | ||||||
| Ukobvu hunotsanangurwa | Ukobvu hunotsanangurwa | Ukobvu hunotsanangurwa | at test temperature ye | |||||
| mm | mm | mm | ||||||
| ＜16 | ＞16≤40 | ＜3 | ≥3≤40 | ≤40 | -20 ℃ | 0℃ | 20 ℃ | |
| S235JRH | 235 | 225 | 360-510 | 360-510 | 24 | - | - | 27 |
| S275J0H | 275 | 265 | 430-580 | 410-560 | 20 | - | 27 | - |
| S275J2H | 27 | - | - | |||||
| S355J0H | 365 | 345 | 510-680 | 470-630 | 20 | - | 27 | - |
| S355J2H | 27 | - | - | |||||
| S355K2H | 40 | - | - | |||||
Kuumbwa Kwemakemikari
| Simbi giredhi | Mhando ye de-oxidation a | % nehuwandu, huwandu | ||||||
| Zita resimbi | Nhamba yesimbi | C | C | Si | Mn | P | S | Nb |
| S235JRH | 1.0039 | FF | 0,17 | - | 1,40 | 0,040 | 0,040 | 0.009 |
| S275J0H | 1.0149 | FF | 0,20 | - | 1,50 | 0,035 | 0,035 | 0,009 |
| S275J2H | 1.0138 | FF | 0,20 | - | 1,50 | 0,030 | 0,030 | - |
| S355J0H | 1.0547 | FF | 0,22 | 0,55 | 1,60 | 0,035 | 0,035 | 0,009 |
| S355J2H | 1.0576 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
| S355K2H | 1.0512 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
| a.Iyo deoxidation nzira inosarudzwa seinotevera: | ||||||||
| FF: Simbi yakaurayiwa zvizere ine nitrogen inosunga zvinhu muhuwandu hunokwana kusunga nitrogen iripo (semuenzaniso min. 0,020 % yakazara Al kana 0,015 % soluble Al). | ||||||||
| b.Iyo yakanyanya kukosha yenitrogen isingashande kana kemikari ichiratidza huwandu hushoma hwese hweAl content ye0,020 % ine hushoma hweAl/N chiyero che2: 1, kana kana zvimwe zvakakwana zveN-binding zvinhu zviripo.Iyo N-inosunga zvinhu icharekodhwa muChinyorwa Chekuongorora. | ||||||||
Manufacturing process
Spiral welded pombi, inozivikanwawo seSSAW (spiral submerged arc welded) pombi, inogadzirwa uchishandisa spiral kuumba uye kunyudza arc welding matekiniki.Maitirwo acho anotanga nekurapa kwemupendero kwetambo yakamoneredzwa yesimbi yobva yapeta tambo kuita denderedzwa.Otomatiki yakanyudzwa arc welding inozoshandiswa kubatanidza mipendero yemitsetse pamwe chete, kugadzira inoenderera weld pamwe nehurefu hwepombi.Iyi nzira inoita kuti chibatanidzi chive chakasimba uye chinogara kwenguva refu apo ichideredza kukanganisa uye kuchengetedza kuvimbika kwechimiro.
Zvakanakira spiral welded kabhoni simbi pombi
1. Simba nekusimba:Spiral welded carbon steel pipeinozivikanwa nokuda kwesimba rayo repamusoro uye kusimba, zvichiita kuti ive yakakodzera kune zvikumbiro zvinoda kupikisa kwepamusoro uye kushanda kwenguva refu.
2. Mutengo-Kushanda: Mapombi aya anopa mhinduro isingadhuri nekuda kwemaitiro avo ekugadzira ekugadzira, kuderera kwemitengo yezvigadzirwa, uye kuderedzwa kwezvinodiwa zvebasa zvichienzaniswa nemamwe marudzi epombi.
3. Kusiyana-siyana: Iko kushandiswa kwakasiyana-siyana kwe spiral welded carbon steel pipe inobvumira kuti ishandiswe mune zvakasiyana-siyana zvekushandisa, kusanganisira kutakura kwemvura, kutakura kwemafuta uye gasi, zvivako zvekuputira, zvigadziriso zvetsvina, uye maitiro akasiyana-siyana emabhizimisi.
4. Dimensional kurongeka: The spiral forming process inogona kunyatso kudzora ukuru uye madziro emadziro epombi, kuve nechokwadi chekururama uye kufanana kwekugadzirwa.
Nzvimbo dzekushandisa
1. Indasitiri yemafuta uye gasi rechisikigo: Spiral welded carbon steel pombi dzinoshandiswa zvakanyanya muindasitiri yemafuta uye gasi rechisikigo, kunyanya mukutakurwa kwemafuta asina kuchena, gasi rechisikigo uye zvigadzirwa zvepetroleum.Simba ravo uye kukwanisa kutsungirira nharaunda dzepamusoro-soro dzinoita kuti zvive zvakanaka kune mapaipi akareba.
2. Kufambiswa kweMvura: Zvingave zvemvura yemanisiparati kana yekudiridza, spiral welded carbon steel pombi inopa mhinduro yakanakisa nekuda kwekupokana kwayo, simba uye nyore kuisa.
3. Rutsigiro rwechimiro: Rudzi urwu rwepombi runoshandiswa zvakanyanya muindasitiri yekuvaka kupa rubatsiro rwekuvaka kune zvivakwa, mabhiriji, docks uye mamwe mapurojekiti ekuvaka.Kugara kwavo uye kuramba kune zvinhu zvekunze kunoita kuti vavimbike mumashandisirwo akadaro.
4. Industrial Applications: Spiral welded carbon steel pipes inoshandiswa munzvimbo dzakasiyana-siyana dzemaindasitiri dzakadai semakemikari ekugadzirisa, magetsi emagetsi uye kushandiswa kwemigodhi nekuda kwekukwanisa kwavo kubata kupisa kwakanyanya, kudzvinyirirwa uye nzvimbo dzinoparadza.
Mukupedzisa
Spiral welded kabhoni simbi pombi, akadaiX42 SSAW pombi, yakashandura nzira yesimbi pombi welding, zvichiunza zvikomborero zvakawanda kumaindasitiri akasiyana.Simba ravo, kusimba, kudhura-kushanda uye kurongeka kwedimensional inovimbisa kutendeseka kwechimiro mumhando dzakasiyana dzekushandisa.Kugona kumirisana nekumanikidzwa kwakanyanya, tembiricha uye nharaunda dzinoora zvinoita kuti ive yakanakira kutapurirana oiri uye gasi, kupihwa kwemvura uye mamwe maindasitiri.Naizvozvo, kana zvasvika kune simbi pombi welding, kushandiswa kwe spiral welded kabhoni simbi mapaipi inoramba yakavimbika uye inobudirira mhinduro kuve nechokwadi chekugara kwenguva refu uye kusimba kwezvivakwa.
Hydrostatic Test
Hurefu hwega hwega hwepombi huchaedzwa nemugadziri kune hydrostatic pressure iyo inoburitsa mumadziro epombi kushushikana kusingasviki 60% yeiyo yakataurwa kushomeka kwegoho pakupisa kwekamuri.Kudzvanywa kunozotemwa neinotevera equation:
P=2St/D
Kusiyana Kunobvumirwa Muhuremu uye Zviyero
Hurefu hwega hwega hwepombi huchayerwa hwakaparadzana uye huremu hwayo hahuzosiyane kupfuura 10% pamusoro kana 5.5% pasi pehuremu hwayo hwekufungidzira, huchiverengerwa pachishandiswa hurefu hwayo nehuremu hwayo pakureba kweyuniti.
Iyo dhayamita yekunze haifanire kusiyana kupfuura ± 1% kubva kune yakatsanangurwa yekunze dhayamita
Ukobvu hwemadziro chero nguva haufanire kupfuura 12.5% pasi peiyo yakataurwa madziro ukobvu
