Spiral Welded Steel Pipe Bakeng sa Liphaephe tsa Oli le Khase
Tsebisa:
Mafapheng a lulang a fetoha a meralo le boenjineri, tsoelopele ea thekenoloji e tsoela pele ho hlalosa bocha hore na merero e kengoa tšebetsong joang.E 'ngoe ea lintlafatso tse tsotehang ke peipi ea tšepe e entsoeng ka spiral.Peipi e na le li-seams holim'a eona 'me e bōpiloe ka ho koba marapo a tšepe hore a be selikalikoe ebe oa li tjheseletsa, e leng se tlisang matla a ikhethang, ho tšoarella le ho feto-fetoha ha liphaephe.Kenyelletso ena ea sehlahisoa e ikemiselitse ho bonts'a likarolo tsa bohlokoa tsa peipi e cheselitsoeng ka spiral le ho totobatsa karolo ea eona ea phetoho indastering ea oli le khase.
Tlhaloso ea Sehlahisoa:
Spiral welded tšepe lipeipi, ka moralo oa bona, li fana ka melemo e mengata e fapaneng ho feta mekhoa e tloaelehileng ea liphaephe.Ts'ebetso ea eona e ikhethang ea tlhahiso e tiisa botenya bo tsitsitseng ho pholletsa le bolelele bohle ba eona, e etsa hore e be e hanyetsanang haholo le likhatello tsa ka hare le tsa ka ntle.Ho tiea hona ho etsa hore peipi e cheselitsoeng ka spiral e be e loketseng bakeng sa lits'ebetso tsa phetiso ea oli le khase moo polokeho le ts'epahalo e leng tsa bohlokoa.
Theknoloji ea spiral welding e sebelisoang tlhahiso ea eona e fana ka phetoho e kholoanyane le ho ikamahanya le maemo, e lumellang pipeline ho mamella maemo a feteletseng a kang mocheso o phahameng, phapang ea khatello le likoluoa tsa tlhaho.Ho feta moo, moralo ona o mocha o matlafatsa kutu le ho se mamelle, o thusa ho lelefatsa bophelo ba tšebeletso le ho fokotsa litšenyehelo tsa tlhokomelo.
| Lethathamo la 2 Thepa e ka Sehloohong ea 'Mele le ea Lik'hemik'hale ea Lipeipi tsa Tšepe (GB/T3091-2008, GB/T9711-2011 le API Spec 5L) | ||||||||||||||
| Standard | Kereiti ea tšepe | Likarolo tsa Lik'hemik'hale (%) | Thepa ea Tensile | Teko ea Tšusumetso ea Charpy(V notch) | ||||||||||
| c | Mn | p | s | Si | Tse ding | Yield Strength (Mpa) | Tensile Strength (Mpa) | (L0=5.65 √ S0 ）Metsotso e Lebelo la ho Otlolla (%) | ||||||
| max | max | max | max | max | min | max | min | max | D ≤ 168.33mm | D ~ 168.3 limilimithara | ||||
| GB/T3091 -2008 | Q215A | ≤ 0.15 | 0.25 ＜ 1.20 | 0.045 | 0.050 | 0.35 | Ho eketsa Nb\V\Ti ho latela GB/T1591-94 | 215 | 335 | 15 | > 31 | |||
| Q215B | ≤ 0.15 | 0.25-0,55 | 0.045 | 0.045 | 0.035 | 215 | 335 | 15 | > 31 | |||||
| Q235A | ≤ 0.22 | 0.30 ＜ 0.65 | 0.045 | 0.050 | 0.035 | 235 | 375 | 15 | >26 | |||||
| Q235B | ≤ 0.20 | 0.30 ≤ 1.80 | 0.045 | 0.045 | 0.035 | 235 | 375 | 15 | >26 | |||||
| Q295A | 0.16 | 0.80-1,50 | 0.045 | 0.045 | 0.55 | 295 | 390 | 13 | >23 | |||||
| Q295B | 0.16 | 0.80-1,50 | 0.045 | 0.040 | 0.55 | 295 | 390 | 13 | >23 | |||||
| Q345A | 0.20 | 1.00-1.60 | 0.045 | 0.045 | 0.55 | 345 | 510 | 13 | >21 | |||||
| Q345B | 0.20 | 1.00-1.60 | 0.045 | 0.040 | 0.55 | 345 | 510 | 13 | >21 | |||||
| GB/T9711-2011 (PSL1) | L175 | 0.21 | 0.60 | 0.030 | 0.030 | Ka boikhethelo ho kenyelletsa e 'ngoe ea likarolo tsa Nb\V\Ti kapa motsoako ofe kapa ofe oa tsona | 175 | 310 | 27 | E 'ngoe kapa tse peli tsa toughness index of impact energy le sebaka sa ho kuta li ka khethoa.Bakeng sa L555, bona maemo. | ||||
| L210 | 0.22 | 0.90 | 0.030 | 0.030 | 210 | 335 | 25 | |||||||
| L245 | 0.26 | 1.20 | 0.030 | 0.030 | 245 | 415 | 21 | |||||||
| L290 | 0.26 | 1.30 | 0.030 | 0.030 | 290 | 415 | 21 | |||||||
| L320 | 0.26 | 1.40 | 0.030 | 0.030 | 320 | 435 | 20 | |||||||
| L360 | 0.26 | 1.40 | 0.030 | 0.030 | 360 | 460 | 19 | |||||||
| L390 | 0.26 | 1.40 | 0.030 | 0.030 | 390 | 390 | 18 | |||||||
| L415 | 0.26 | 1.40 | 0.030 | 0.030 | 415 | 520 | 17 | |||||||
| L450 | 0.26 | 1.45 | 0.030 | 0.030 | 450 | 535 | 17 | |||||||
| L485 | 0.26 | 1.65 | 0.030 | 0.030 | 485 | 570 | 16 | |||||||
| API 5L (PSL 1) | A25 | 0.21 | 0.60 | 0.030 | 0.030 | Bakeng sa tšepe ea sehlopha sa B,Nb+V ≤ 0.03%; bakeng sa tšepe ≥ sehlopha sa B, ka boikhethelo ho eketsa Nb kapa V kapa motsoako oa bona, le Nb+V+Ti ≤ 0.15% | 172 | 310 | (L0=50.8mm) e tla baloa ho latela foromo e latelang:e=1944·A0 .2/U0 .0 A: Sebaka sa sampole ho mm2 U: Matla a fokolang a boletsoeng ho Mpa | Ha ho letho kapa leha e le efe kapa bobeli ba matla a tšusumetso le sebaka sa ho kuta e hlokahalang e le mokhoa oa ho thatafala. | ||||
| A | 0.22 | 0.90 | 0.030 | 0.030 | 207 | 331 | ||||||||
| B | 0.26 | 1.20 | 0.030 | 0.030 | 241 | 414 | ||||||||
| X42 | 0.26 | 1.30 | 0.030 | 0.030 | 290 | 414 | ||||||||
| X46 | 0.26 | 1.40 | 0.030 | 0.030 | 317 | 434 | ||||||||
| X52 | 0.26 | 1.40 | 0.030 | 0.030 | 359 | 455 | ||||||||
| X56 | 0.26 | 1.40 | 0.030 | 0.030 | 386 | 490 | ||||||||
| X60 | 0.26 | 1.40 | 0.030 | 0.030 | 414 | 517 | ||||||||
| X65 | 0.26 | 1.45 | 0.030 | 0.030 | 448 | 531 | ||||||||
| X70 | 0.26 | 1.65 | 0.030 | 0.030 | 483 | 565 | ||||||||
Ntle le moo, khokahano ea spiral weld e netefatsa ts'ebetso e ntle haholo ea ho thibela ho lutla.Ka hona, lipeipi tse cheselitsoeng ka spiral li fana ka liphaephe tse sireletsehileng bakeng sa lipalangoang tsa oli le khase, ho fokotsa kotsi ea ho lutla le likotsi tsa tikoloho.Sena, hammoho le ts'ebetso ea eona e phahameng ea phallo le ts'ebetso e nepahetseng ea hydraulic, e etsa hore e be e loketseng bakeng sa lik'hamphani tsa matla tse batlang litharollo tse tšepahalang le tse tšoarellang.
Ho feto-fetoha ha lipeipi tse cheselitsoeng ka spiral ha ho felle feela ho lipalangoang tsa oli le khase.Kaho ea eona e matla le bots'epehi bo botle ba eona bo e lumella ho sebelisoa lits'ebetsong tse fapaneng, ho kenyeletsoa phepelo ea metsi, tsamaiso ea likhoerekhoere, esita le merero ea boenjiniere ba sechaba.Ho sa tsotellehe hore na li sebelisetsoa ho tsamaisa maro kapa li sebelisoa e le mehaho ea tšehetso, lipeipi tsa tšepe tse entsoeng ka spiral welded li ipabola tabeng ea ho fana ka litharollo tse tšepahalang le tse baballang chelete e ngata.
Ho kenyelletsoa ha lipeipi tsa tšepe tse cheselitsoeng ka spiral ho ntlafalitse haholo mekhoa ea ho cheselletsa liphaephe, ho nolofatsa tšebetso le ho fokotsa nako ea morero ka kakaretso.Ho kenya habonolo, ho kopantsoe le karo-karolelano e phahameng ea matla ho boima ba 'mele, ho lumella hore ho be le mokhoa o bonolo le o sebetsang oa kaho.Sena se bolela chelete e ngata ea ho boloka litšenyehelo tsa basebetsi, litlhoko tsa thepa le litšenyehelo tsa tsamaiso ea morero, ha ho ntse ho netefatsa boleng bo phahameng le bophelo bo bolelele.
Ha re phethela:
Ka bokhuts'oane, peipi e cheselitsoeng ka spiral e fetotse tšebetso ea lipeipi tsa tjheseletsa, haholo indastering ea oli le khase.Ho kopanya ha eona ka mokhoa o se nang moeli oa matla, ho tšoarella, ho feto-fetoha ha maemo le ho boloka litšenyehelo ho etsa hore e be e loketseng bakeng sa lik'hamphani tsa matla tse batlang litharollo tse tšepahalang.Ka khatello e phahameng, ho bola le ho hanyetsa ho lutla, liphaephe tsa tšepe tse cheselitsoeng ka spiral li fetela ka nģ'ane ho mekhoa ea liphaephe tsa setso ho fana ka marang-rang a tsitsitseng le a sireletsehileng bakeng sa ho tsamaisa lisebelisoa tsa bohlokoa.Ha indasteri ea kaho e ntse e tsoela pele ho amohela tsoelo-pele ea theknoloji, spiral welded pipe e fetoha bopaki ba bohlale le boqapi ba batho, e phatlalatsang bokamoso ba ts'ebetso, polokeho le ts'epo.
