Kuwotcherera Arc Yozungulira Yokhala ndi Mizere Yozungulira Mu Kumanga Mzere wa Mapaipi a Mafuta: Kuonetsetsa Kuti Utumiki Ukhale Wodalirika
Dziwani zambiri za HSAW:
Kuwotcherera kwa arc kozungulira pansi pa madziNdi ukadaulo wapamwamba wowotcherera womwe umaphatikiza mfundo za kuwotcherera arc pansi pamadzi ndi kupanga machubu ozungulira. Zimaphatikizapo kugwiritsa ntchito njira yowotcherera yokha kuti ipange wowotcherera wozungulira mosalekeza poika waya wodzaza wolimba mu arc yophimbidwa ndi flux. Njirayi imatsimikizira ma weld okhazikika komanso apamwamba, kuchotsa chiopsezo cha zolakwika zomwe zimafala ndi njira zina zowotcherera.
mapulogalamu.
Katundu wa Makina
| kalasi yachitsulo | mphamvu yocheperako yopezera phindu | Kulimba kwamakokedwe | Kutalikirana kochepa | Mphamvu yochepa kwambiri | ||||
| Kunenepa kotchulidwa | Kunenepa kotchulidwa | Kunenepa kotchulidwa | kutentha koyesedwa kwa | |||||
| 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 | - | - | |||||
Kufunika kwa HSAW pakupanga mapaipi amafuta:
1. Mphamvu ndi Kulimba: Chimodzi mwa zinthu zazikulu za HSAW ndi kuthekera kwake kupanga malo olumikizirana olimba komanso amphamvu kwambiri. Cholumikizira chozungulira chokhazikika chomwe chimapangidwa ndi ukadaulo uwu chimawonjezera kulimba kwa kapangidwe kake ndipo ndikofunikira kwambiri kuti chipirire kupsinjika kwakukulu, kutentha kwambiri komanso zinthu zachilengedwe zomwe zimapangitsa kuti chikhale cholimba.chitoliro cha mafuta mizerenkhope zawo pa nthawi ya utumiki wawo.
2. Moyo wautali komanso kudalirika kwambiri: Mapaipi amafuta akuyembekezeka kugwira ntchito bwino kwa zaka zambiri, kunyamula mafuta popanda kutuluka kapena kulephera. HSAW imagwira ntchito yofunika kwambiri pakukwaniritsa moyo wautali poonetsetsa kuti kutentha kwa mawotchi kufalikira mofanana, kuchepetsa kuchuluka kwa kupsinjika, komanso kupewa kuyambitsa ming'alu ndi kufalikira - zonsezi zimapangitsa kuti chitolirocho chikhale chodalirika.
3. Kapangidwe kogwira mtima: HSAW imatha kulumikiza payipi nthawi zonse, kotero imakhala ndi luso lalikulu pakupanga mapaipi. Njirayi imachepetsa nthawi yolumikizira, imawonjezera zokolola, imachepetsa kwambiri ndalama zomangira, ndipo imathandiza kuti ntchitoyi ithe nthawi yake.
4. Kuchepetsa kukonza ndi kukonza: Mwa kupereka ma weld apamwamba komanso opanda chilema, HSAW imachepetsa kufunikira kokonzanso mtsogolo kapena nthawi yopuma yokhudzana ndi kukonza. Mapaipi amafuta omangidwa pogwiritsa ntchito njira iyi sachedwa kutaya madzi kapena kulephera, zomwe zimapangitsa kuti chitetezo chikhale bwino komanso kuti ntchito iyende bwino.
5. Ubwino wa chilengedwe: HSAW imatsimikizira kupanga ma weld olondola kwambiri komanso olondola kwambiri. Izi zimachepetsa kuthekera kwa dzimbiri la mapaipi ndi kutayikira kwa mafuta pambuyo pake, kuteteza chilengedwe ku masoka omwe angachitike chifukwa cha kulephera kwa mapaipi.
Kapangidwe ka Mankhwala
| Kalasi yachitsulo | Mtundu wa de-oxidation a | % ndi kulemera, kuchuluka kwakukulu | ||||||
| Dzina lachitsulo | Nambala yachitsulo | 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. Njira yochotsera poizoni m'thupi imatchulidwa motere: FF: Chitsulo chophwanyika bwino chokhala ndi zinthu zomangira nayitrogeni mu kuchuluka kokwanira kumangirira nayitrogeni yomwe ilipo (monga osachepera 0,020% ya Al yonse kapena 0,015% ya Al yosungunuka). b. Mtengo wapamwamba kwambiri wa nayitrogeni sugwira ntchito ngati mankhwala akuwonetsa kuchuluka kwa Al komwe kuli 0,020% ndi chiŵerengero chochepa cha Al/N cha 2:1, kapena ngati pali zinthu zina zokwanira zomangira N. Zinthu zomangira N ziyenera kulembedwa mu Chikalata Chowunikira. | ||||||||
Pomaliza:
Kupanga mapaipi amafuta kumafuna miyezo yapamwamba kwambiri yolumikizira kuti zitsimikizire kuti nthawi yayitali, kudalirika komanso chitetezo. Spiral submided arc welding (HSAW) ndi ukadaulo wodziwika bwino womwe umasankhidwa kwambiri m'munda uno chifukwa cha kuthekera kwake kupanga ma weld olimba, olimba komanso opanda chilema. Ndi zabwino zambiri kuphatikizapo kukhazikika kwa kapangidwe kake, kumanga bwino, kuchepetsa kukonza komanso ubwino wa chilengedwe, HSAW imagwira ntchito yofunika kwambiri pakukwaniritsa zosowa zapadziko lonse lapansi zoyendera mafuta. Pamene makampani amafuta akupitilira kukula, kugwiritsa ntchito ukadaulo wapamwamba wolumikizira monga HSAW ndikofunikira kwambiri kuti mapaipi amafuta azikhala olimba komanso odalirika padziko lonse lapansi.
Powombetsa mkota
Cangzhou Spiral Steel Pipe Group Co., Ltd. imadzitamandira popereka mapaipi apamwamba kwambiri ozungulira omwe amagwiritsidwa ntchito m'njira zosiyanasiyana. Timayang'ana kwambiri pakupanga zinthu molondola, ukadaulo wapamwamba wowotcherera ndi zipangizo zabwino kuti tipatse makasitomala mayankho odalirika komanso ogwira mtima pazosowa zawo za mapaipi. Tikhulupirireni kuti tikwaniritse zosowa zanu zonse ndikuwona nokha kudalirika ndi kulimba kwa mapaipi athu ozungulira.







