Ho Utloisisa Pipe e Welded Habeli le Spiral Welded Steel Pipe ASTM A252
Selelekela:
Sechabeng sa kajeno, ho tsamaisa metsi le likhase hantle ho bohlokoa liindastering tse ngata.E 'ngoe ea lintlha tsa bohlokoa ho etsa bonnete ba hore ts'ebetso ea hau e sebetsa hantletsamaiso ea liphaephee khetha lipeipi tse nepahetseng.Har'a likhetho tse fapaneng tse fumanehang, S235 JR Spiral Steel Pipe ke khetho e tšepahalang ka lebaka la boleng ba eona bo holimo.Blog ena e ikemiselitse ho lekola melemo ea ho sebelisa phala ea tšepe ea S235 JR litsing tsa liphaephe, e shebane le sebopeho sa eona sa spiral welded.
Thepa ea Mechini
| tšepe kereiti | bonyane matla a tlhahiso | Matla a tšepe | Bonyane bo bolelele | Matla a fokolang a ts'usumetso | ||||
| Botenya bo boletsoeng | Botenya bo boletsoeng | Botenya bo boletsoeng | ka mocheso oa teko ea | |||||
| ＜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 | - | - | |||||
Sebopeho sa Lik'hemik'hale
| Kereiti ea tšepe | Mofuta oa de-oxidation a | % ka boima, boholo | ||||||
| Lebitso la tšepe | Nomoro ea tšepe | 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.Mokhoa oa deoxidation o khethiloe ka tsela e latelang: FF: Tšepe e bolailoeng ka ho feletseng e nang le likarolo tse tlamang tsa nitrogen ka bongata bo lekaneng ho kopanya naetrojene e fumanehang (mohlala, min. 0,020 % kakaretso ea Al kapa 0,015 % e qhibilihang Al). b.Theko e phahameng ea naetrojene ha e sebetse haeba motsoako oa lik'hemik'hale o bontša bonyane kakaretso ea Al content ea 0,020 % ka tekanyo ea bonyane ea Al/N ea 2:1, kapa haeba likarolo tse ling tse lekaneng tsa N-binding li le teng.Lintlha tse tlamang N li tla tlalehoa Tokomaneng ea Tlhahlobo. | ||||||||
Teko ea Hydrostatic
Bolelele bo bong le bo bong ba phala bo tla lekoa ke moetsi ho khatello ea hydrostatic e tla hlahisa ka har'a lebota la liphaephe khatello ea maikutlo e seng ka tlase ho 60% ea matla a tlase a chai a boletsoeng mocheso oa kamore.Khatello e tla khethoa ke equation e latelang:
P=2St/D
Liphapang Tse Dumelloang Ka Boima le Botekanyo
Bolelele bo bong le bo bong ba phala bo tla lekanngoa ka thoko 'me boima ba eona bo ke ke ba fapana ho feta 10% ho feta kapa 5.5% tlasa boima ba eona ba theoretical, bo baloang ho sebelisoa bolelele ba eona le boima ba eona ka bolelele ba yuniti.
Bophara ba ka ntle bo ke ke ba fapana ho feta ± 1% ho tloha bophara bo boletsoeng bo ka ntle bo boletsoeng
Botenya ba marako sebakeng leha e le sefe ha boa lokela ho feta 12.5% tlas'a botenya ba lebota bo boletsoeng
1. Utloisisa phala ea tšepe ea S235 JR:
S235 JR phala ea tšepe ea spiralke spiral welded pipe e sebelisoang haholo tsamaisong ea lipeipi.Li entsoe ka tšepe ea boleng bo phahameng ho latela litekanyetso tsa machaba, ho netefatsa hore li tšoarella ka mokhoa o phahameng le matla.Mokhoa oa ho etsa tlhahiso o kenyelletsa ho etsoa ha lithapo tsa tšepe tse sa khaotseng, ebe li chesetsoa ho isa bolelele bo batloang.Mokhoa ona oa ho haha o fana ka liphaephe ka melemo e mengata ho feta liphaephe tsa setso tse otlolohileng.
2. Melemo ea kaho ea lipeipi tse cheselitsoeng ka spiral:
Mohaho o nang le li-spiral welded oa S235 JR Spiral Steel Pipe o fana ka melemo e mengata lits'ebetsong tsa liphaephe.Ntlha ea pele, li-spiral weld seams tse tsoelang pele li matlafatsa botšepehi ba sebopeho sa pipe, e leng se etsang hore e be e hanyetsanang haholo le likhatello tsa ka hare le tsa ka ntle.Sebopeho sena se boetse se tiisa hore esita le kabo ea mojaro, ho fokotsa kotsi ea ho hlōleha ha lipeipi.Ho phaella moo, sebopeho sa spiral sa pipe se felisa tlhokahalo ea ho matlafatsa ka hare, ka tsela eo ho ntlafatsa bokhoni ba ho phalla le ho fokotsa tahlehelo ea khatello nakong ea phetisetso ea metsi.Bokaholimo bo tsoelang pele bo sa tsitsang ba phaephe ea spiral bo fokotsa kotsi ea ho lutla le ho ntlafatsa polokeho le katleho ea sistimi ea liphaephe.
3. Ntlafatsa ho tšoarella le ho feto-fetoha ha maemo:
S235 JR Spiral Steel Pipe e fana ka nako e telele e tšoarellang ka lebaka la thepa ea eona ea boleng bo holimo.Li hanyetsana le kutu, ho senyeha le maemo a leholimo a feteletseng, e leng se etsang hore e be tse loketseng bakeng sa mefuta e fapaneng ea likopo tse kenyeletsang lipalangoang tsa oli le khase, mekhoa ea metsi le merero ea mekhoa ea motheo.Ho feto-fetoha ha liphaephe tsena ho li lumella ho etsoa habonolo ho finyella litlhoko tse khethehileng tsa morero.Ho feta moo, li bonolo ho li kenya le ho li hlokomela, 'me li eketsa boipiletso ba tsona le ho thusa ho etsa hore tsamaiso ea likotopo e boloke chelete e ngata le e sebetsang hantle ka nako.
4. Melemo ea tikoloho le botsitso:
Ho fetohela ho S235 JR spiral steel pipe lits'ebetsong tsa liphaephe le hona ho ka tlisa melemo ea bohlokoa ea tikoloho.Bophelo ba bona bo bolelele le ho hana ho senyeha ho fokotsa tlhokeho ea ho nchafatsoa khafetsa, ho bakang khabone e tlase le tlhahiso e fokolang ea litšila.Ho phaella moo, ho sebelisoa hape ha tšepe ho etsa hore liphaephe tsena e be khetho e tsitsitseng ho latela melao-motheo ea moruo oa selikalikoe.Ka ho sebelisa lipeipi tsa tšepe tsa spiral S235 JR, liindasteri li ka etsa bonnete ba hore ho na le tsela e ntle ea tikoloho le e nang le boikarabelo ea ho tsamaisa maro, ka hona ho khothalletsa bokamoso bo botala.
Qetello:
Tšebeliso ea phala ea tšepe ea spiral S235 JR tsamaisong ea liphaephe e fana ka melemo e mengata ea bohlokoa, ho kenyelletsa le ho tšoarella ho matlafalitsoeng, polokeho le katleho.Sebopeho sa spiral welded se tiisa sebopeho sa sona sa sebopeho mme se fana ka phepelo e tšepahalang ea mokelikeli bakeng sa liindasteri tse fapaneng.Ka ho kenyelletsa mahlale a tsoetseng pele joalo ka ana, re betla tsela bakeng sa lits'ebetso tsa lipeipi tse tšoarellang le tse tšepahalang.
