Mapaipi Owirikiza Arc Welded Omwe Amalowa M'madzi Kuti Akhale Olimba M'kapangidwe Kake
Yambitsani:
Mu gawo la uinjiniya wa zomangamanga, kufunika kogwiritsa ntchito zipangizo zabwino komanso njira zomangira sikunganyalanyazidwe. Pakati pa zinthu zosiyanasiyana zomwe zimagwiritsidwa ntchito pomanga, mapaipi amachita gawo lofunika kwambiri. Tidzawunikira kufunika kwa mapaipi olumikizidwa kawiri ndikuwunika mawonekedwe awo, ubwino wawo komanso momwe angathandizire kukulitsa umphumphu wa kapangidwe kake.
Dziwani zambiri za mapaipi olumikizidwa kawiri:
Chitoliro cholumikizidwa kawiri, chomwe chimadziwikanso kuti chitoliro cholumikizidwa kawiri pansi pa arc (Mapaipi a DSAW), imapangidwa pogwiritsa ntchito njira yolumikizira arc yomwe imayikidwa pansi pa nthaka. Ukadaulowu umaphatikizapo kuphatikiza mbale ziwiri zosiyana zachitsulo motalikirapo, zomwe zimapangitsa kuti zikhale zolimba komanso zopitilira. Mapaipi awa amagwiritsidwa ntchito makamaka pakugwiritsa ntchito mphamvu zambiri, mapaipi apansi panthaka ndi gasi wachilengedwe, kufufuza mafuta, ndi mapulatifomu akunja kwa nyanja.
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 | - | - | |||||
Limbikitsani kukhazikika kwa kapangidwe kake:
Chifukwa chachikulu chogwiritsira ntchitochitoliro cholumikizidwa kawirindi kuthekera kwawo kukulitsa umphumphu wa kapangidwe kake. Ndi ma weld osasokonekera komanso olimba, mapaipi awa amapereka kukana kupsinjika komanso kulimba kwambiri. Weld iwiri imatsimikizira kuti chitolirocho chikhoza kupirira kupsinjika kwakukulu, zomwe zimapangitsa kuti chikhale choyenera kugwiritsidwa ntchito kwambiri pomwe weld imodzi ingasokoneze chitetezo cha kapangidwe kake. Njira yowotcherera iwiriyi imachotsa kuthekera kwa kutuluka kapena ming'alu, ndikutsimikizira kudalirika kwa nthawi yayitali kwa makina anu opachikira mapaipi.
Chiŵerengero cha mphamvu ndi kulemera:
Chitoliro cholumikizidwa kawiri chimapereka chiŵerengero chabwino kwambiri cha mphamvu ndi kulemera. Chifukwa cha njira yolumikizira, mapaipi awa ali ndi makulidwe ochepa a khoma ndipo ndi opepuka pomwe amasunga kulimba kwa kapangidwe kake. Ubwino wa chiŵerengero cha mphamvu ndi kulemera kumeneku umachepetsa katundu wonse pa kapangidwe kothandizira, zomwe zimapangitsa kuti ikhale yankho lotsika mtengo pamapulojekiti akuluakulu monga milatho, nsanja, ndi nyumba zazitali.
Kukana dzimbiri:
Ubwino wina waukulu wa chitoliro cholumikizidwa kawiri ndi kukana dzimbiri. Chisindikizo cholumikizidwa mwamphamvu chimapanga chotchinga champhamvu ku zinthu zakunja, kuphatikizapo chinyezi, mankhwala ndi zinthu zadothi. Izi zimalepheretsa pamwamba pa chitoliro kuti chisakhudze mwachindunji ndi zinthu zowononga, zomwe zimapangitsa kuti ntchito ikhale yayitali poyerekeza ndi mapaipi wamba. Mphamvu zosagwirizana ndi dzimbiri za mapaipi awa ndizothandiza kwambiri kumakampani opanga mafuta ndi gasi, komwe mapaipi nthawi zambiri amakumana ndi zovuta.
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. | ||||||||
Makhalidwe abwino a magalimoto:
Malo osalala, osasinthasintha amkati mwa chitoliro cholumikizidwa kawiri amalola kuti madzi aziyenda bwino. Mosiyana ndi mitundu ina ya mapaipi omwe ali ndi zopinga zamkati, mapaipi awa amatsimikizira kuti madzi kapena mpweya zimayenda mosalekeza komanso mofanana, motero amachepetsa kutayika kwa kukangana. Makhalidwe abwino a madzi olumikizidwa kawiri amathandiza kukonza magwiridwe antchito osiyanasiyana a mafakitale, kuphatikizapo zomera za petrochemical, mafakitale oyeretsera ndi malo oyeretsera madzi.
Pomaliza:
Pomaliza, chitoliro cholumikizidwa kawiri ndi gawo lofunika kwambiri lomwe limakulitsa kwambiri umphumphu wa kapangidwe ka ntchito zosiyanasiyana zomanga. Makhalidwe awo apadera, kuphatikizapo ma weld osasemphana, chiŵerengero champhamvu kwambiri pakati pa kulemera, kukana dzimbiri komanso kuyenda bwino, zimawapanga kukhala chisankho choyamba pa ntchito zomwe zimafuna kudalirika, kulimba komanso kugwiritsa ntchito ndalama moyenera. Pogwiritsa ntchito chitoliro cholumikizidwa kawiri, mainjiniya ndi makontrakitala amatha kuwonetsetsa kuti zomangamanga zofunika kwambiri zikugwira ntchito bwino kwa nthawi yayitali komanso motetezeka, zomwe zimapangitsa kuti ikhale chuma chamtengo wapatali m'magawo omanga ndi mainjiniya.
Mwachidule, chitoliro chachitsulo cha S235 J0 chozungulira chimapereka ubwino ndi kulimba kosayerekezeka kwa inuchitoliro cholumikizidwa cha mainchesi akuluezosowa zawo. Ndi njira zawo zopangira zapamwamba, ubwino wapamwamba wowotcherera komanso kuwunika bwino kwambiri, zinthu zathu zikutsimikiziridwa kuti zipitilira zomwe mukuyembekezera. Khulupirirani Cangzhou Spiral Steel Pipe Group Co., Ltd.'ukatswiri ndi chidziwitso chake kuti akwaniritse zosowa zanu zonse za chitoliro chachitsulo.







