STPG 370 ke phaephe ea tšepe ea carbon e tlase e boletsoeng ho JIS G 3454 e tloaelehileng ea Japane.
STPG 370 e na le matla a fokolang a 370 MPa le bonyane ba tlhahiso ea matla a 215 MPa.
STPG 370 e ka hlahisoa e le li-tubes tsa tšepe tse se nang seam kapa li-tubes tsa tšepe tse cheselitsoeng ka mokhoa oa ts'ebetso ea ts'ebetso ea ts'ireletso ea motlakase (ERW).E loketse ho sebelisoa lits'ebetsong tsa liphaephe tsa khatello tse nang le mocheso o sebetsang o fihlang ho 350°C.
Ka mor'a moo, re tla sheba STPG 370 ho tsoa lits'ebetsong tsa tlhahiso, sebopeho sa lik'hemik'hale, thepa ea mochini, liteko tsa khatello ea hydrostatic, tlhahlobo e sa senyeheng le ho roala ka masenke.
JIS G 3454 STPG 370 e ka etsoa ka ho sebelisaseamless or ERWts'ebetso ea tlhahiso, e kopantsoeng le mekhoa e nepahetseng ea ho qetela.
Letšoao la mophato | Letšoao la ts'ebetso ea tlhahiso | |
Mokhoa oa ho etsa liphaephe | Mokhoa oa ho qetela | |
STPG370 | E sa tsitsang: S Motlakase o hanyetsanang le welded: E | Ho qeta ho chesa: H Qetello e batang: C Joalo ka ha ho hanyetsa motlakase ho cheselitsoe: G |
Seamlesska ho khetheha e ka aroloa ka:
SH: Pipe ea tšepe e se nang seamless e chesang e chesang;
SC: Pipe ea tšepe e se nang seamless e felileng ka serame;
ERWka ho khetheha e ka aroloa ka:
EH: Ho chesa ho qeta ho hanyetsa motlakase o cheselitsoeng phala ea tšepe;
EC: Cold-qetellong ho hanyetsa motlakase welded tšepe pipe;
EG: Motlakase o hanyetsanang le phala ea tšepe e cheselitsoeng ntle le ho qeta ho chesa le ho qeta ho bata.
JIS G3454e lumella ho eketsoa ha likarolo tsa lik'hemik'hale eseng tafoleng.
Letšoao la mophato | C | Si | Mn | P | S |
max | max | - | max | max | |
JIS G 3454 STPG 370 | 0.25% | 0.35 % | 0.30-0.90% | 0.040 % | 0.040% |
STPG 370 ke tšepe e nang le khabone e tlase ho latela sebopeho sa eona sa lik'hemik'hale.Motsoako oa eona oa lik'hemik'hale o etselitsoe ho o nolofalletsa ho sebelisoa libakeng tse sa feteng 350 ° C, ka matla a matle, boima, le ho hanyetsa mocheso o phahameng.
Letšoao tsa mophato | Matla a tšepe | Ntlha ea chai kapa khatello ea maikutlo | Elongation min, % | |||
Sekhechana sa teko ea tensile | ||||||
No.11 kapa No.12 | No.5 | No.4 | ||||
N/mm² (MPA) | N/mm² (MPA) | Tataiso ea tlhahlobo ea tensile | ||||
min | min | E bapile le axis ea phala | Perpendicular to pipe axis | E bapile le axis ea phala | Perpendicular to pipe axis | |
STPT370 | 370 | 215 | 30 | 25 | 28 | 23 |
Ntle le matla a ho tsitsa, matla a ho tsitsa, le bolelele bo boletsoeng ka holimo, ho boetse ho na le teko e bataletseng le ho kobeha.
Teko e bataletseng: Ha sebaka se pakeng tsa lipoleiti tse peli se fihla sebakeng se boletsoeng H, ho ke ke ha e-ba le mefokolo kapa mapetsong holim'a phala ea tšepe.
Ho kobeha: Pipe e lokela ho kobeha ka 90 ° sebakeng sa radius ea makhetlo a 6 bophara ba eona bo ka ntle.Lerako la liphaephe le tlameha ho hloka sekoli kapa mapetsong.
Pipe e 'ngoe le e' ngoe ea tšepe e tlas'a teko ea hydrostatic kapa tlhahlobo e sa senyeheng ho hlahloba bofokoli leha e le bofe bo sa bonahaleng ka mahlo.
Teko ea Hydrostatic
Ho ea ka tekanyo e reriloeng ea botenya ba lerako la pipe ea tšepe, khetha boleng bo loketseng ba khatello ea metsi, e boloke bonyane metsotsoana ea 5, 'me u hlahlobe hore na pipe ea tšepe e tsoa.
Botenya ba lebota ka lebitso | Nomoro ea Kemiso: Sch | |||||
10 | 20 | 30 | 40 | 60 | 80 | |
Khatello e tlase ea tlhahlobo ea haeteroliki, Mpa | 2.0 | 3.5 | 5.0 | 6.0 | 9.0 | 12 |
Tafole ea boima ba lipeipi tsa tšepe ea JIS G 3454 le kemiso ea Pipe e ka bonoa ka ho tobetsa sehokelo se latelang:
· JIS G 3454 Lethathamo la Boima ba Pipe ea tšepe
· kemiso 10,kemiso 20,kemiso 30,lenaneo 40,kemiso ea 60, lekemiso ea 80.
Teko e sa senyeheng
Haeba tlhahlobo ea ultrasonic e sebelisoa, e lokela ho ipapisa le maemo a thata ho feta lets'oao la sehlopha sa UD ho JIS G 0582.
Haeba tlhahlobo ea hajoale ea eddy e sebelisoa, e lokela ho ipapisa le maemo a thata ho feta lets'oao la sehlopha sa EY ho JIS G 0583.
Ho JIS G 3454, liphaephe tsa tšepe tse sa koahetsoeng li bitsoalipeipi tse ntšole liphaephe tsa tšepe tse entsoeng ka masenke li bitsoalipeipi tse tšoeu.
Pipe e tšoeu: peipi ea tšepe e entsoeng ka masenke
Pipe e ntšo: pipe ea tšepe e se nang galvanized
Ts'ebetso ea liphaephe tse tšoeu ke hore liphaephe tse ntšo tse tšoanelehang li thunngoe kapa li tšeloa ho tlosa litšila holim'a phala ea tšepe ebe li kenngoa ka zinki tse kopanang le JIS H 2107 ea bonyane kereiti ea 1. Litaba tse ling lia etsoa. ho latela maemo a JIS H 8641.
Litšobotsi tsa ho roala zinki li hlahlojoa ho latela litlhoko tsa JIS H 0401, Article 6.
Ho tloha ha e thehoa ka 2014,Botop Steele fetohile morekisi ea ka sehloohong oa pipe ea tšepe ea carbon e ka Leboea ea Chaena, e tsejoang ka tšebeletso e babatsehang, lihlahisoa tsa boleng bo phahameng, le litharollo tse pharaletseng.
Khampani e fana ka mefuta e sa tšoaneng ea liphaephe tsa tšepe ea carbon le lihlahisoa tse amanang le tsona, tse kenyelletsang seamless, ERW, LSAW, le phala ea tšepe ea SSAW, hammoho le lethathamo le feletseng la liphaephe le li-flanges.Lihlahisoa tsa eona tse khethehileng li boetse li kenyelletsa li-alloys tsa boemo bo phahameng le litšepe tse sa hloekang tsa austenitic, tse etselitsoeng ho finyella litlhoko tsa merero e fapaneng ea liphaephe.
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JIS G 3461 STB340 Seamless Carbon Steel Boiler Pipe
JIS G3444 STK 400 SSAW Carbon Steel Structural Tubes
JIS G3452 Carbon ERW Lipeipi tsa Tšepe Bakeng sa Liphaephe tse Tloaelehileng
JIS G 3441 Sehlopha sa 2 Alloy Seamless Steel Tubes
JIS G3454 Carbon ERW Steel Pipe Pressure Service
JIS G3456 STPT370 Carbon Seamless Steel Pipes Bakeng sa Tšebeletso ea Mocheso o Phahameng