Liphaephe tsa Tšepe tse Susumetsang tsa ASTM A139 S235 J0
E 'ngoe ea melemo e meholo eaPhaephe ea tšepe e potolohang ea S235 J0ke ho tenyetseha ha yona ka bophara le botenya ba lebota. Sena se dumella ho tenyetseha ho hoholo ha tlhahiso, haholoholo tlhahisong ya diphaephe tse nang le mabota a maholo, tse nang le mabota a maholo. Ho feta moo, theknoloji ena e sebetsa hantle haholo ho hlahiseng diphaephe tse nang le mabota a maholo tse bophara bo bonyenyane le bo mahareng, e leng se etsang hore e be ntle ho feta mekgwa e meng e seng e ntse e le teng.
Thepa ea Mechini
| sehlopha sa tšepe | matla a fokolang a chai Mpa | Matla a tšepe | Bolelele bo fokolang % | Matla a fokolang a tšusumetso J | ||||
| Botenya bo boletsoeng mm | Botenya bo boletsoeng mm | Botenya bo boletsoeng mm | mochesong 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
| Sehlopha sa tšepe | Mofuta oa ho tlosa oksijene 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 ho tlosa oxidation o khethiloe ka tsela e latelang: FF: Tšepe e bolailoeng ka botlalo e nang le likarolo tse tlamang naetrojene ka bongata bo lekaneng ho tlama naetrojene e fumanehang (mohlala, bonyane 0,020 % kakaretso ea Al kapa 0,015 % Al e qhibilihang).b. Boleng bo phahameng ka ho fetisisa ba naetrojene ha bo sebetse haeba motsoako oa lik'hemik'hale o bontša bonyane kakaretso ea Al ea 0,020 % ka karolelano ea bonyane ea Al/N ea 2:1, kapa haeba ho na le likarolo tse ling tse lekaneng tsa N-binding. Likarolo tse tlamang N li tla tlalehoa Tokomaneng ea Tlhahlobo. | ||||||||
Litšobotsi tse ntle tsa phaephe ea tšepe e potolohang ea S235 J0 li etsa hore e be e loketseng lits'ebetso tse fapaneng. Ebang ke merero ea indasteri, ea khoebo kapa ea meralo ea motheo, sehlahisoa sena se etselitsoe ho fihlela litlhoko tse thata tsa basebelisi ba sona. Ts'ebetso ea sona e tšepahalang le ho tšoarella ha sona li etsa hore e be tharollo e theko e tlaase bakeng sa projeke efe kapa efe e hlokang li-arc tubes tse koahetsoeng ka spiral.
Ntle le phaephe ea tšepe e potolohang ea S235 J0, mohala oa rona oa lihlahisoa o boetse o kenyelletsaPhaephe ea tšepe ea A252 Kereiti ea 3Sehlahisoa sena se etsoa ka ho sebelisa mahlale a morao-rao a tlhahiso a netefatsang maemo a holimo ka ho fetisisa a boleng le a ts'epahalang. Ka matla a sona a ho thapolla le ho hanyetsa mafome hantle, phaephe ea tšepe ea A252 Grade 3 e loketse lits'ebetso tse hlokang boiteko bo bongata.
Re motlotlo ho fana ka mola o felletseng oa phaephe e phuthetsoeng ka arc e koahetsoeng ka hare ho spiral e fihlelang le ho feta maemo a indasteri. Boinehelo ba rona ho boleng le boqapi bo re entse mofani ea tšepahalang indastering ea liphaephe tsa tšepe. Ka boitlamo ba bokhabane, re tsoela pele ho sutumelletsa meeli ea tlhahiso ea liphaephe tsa tšepe.
Ha ho tluoa tabeng ea phaephe e phuthetsoeng ka arc e spiral e kentsoeng ka har'a arc, lihlahisoa tsa rona li beha maemo a ts'ebetso, ho tšoarella le ho tšepahala. Phaephe ea Tšepe e Kobehileng ea S235 J0 le Phaephe ea Tšepe ea A252 Grade 3 ke mehlala e 'meli feela ea boitlamo ba rona ba ho fa bareki ba rona litharollo tse ntle ka ho fetisisa. Re tsepamisa maikutlo boleng le boqapi 'me re ikemiselitse ho fihlela litlhoko tsa bareki ba rona le ho feta litebello tsa bona.
Ka bokhutšoanyane, phaephe ea rona ea tšepe e spiral ea S235 J0 le phaephe ea tšepe ea sehlopha sa 3 ea A252 ke litholoana tsa theknoloji ea sejoale-joale le boqhetseke bo phahameng. Lihlahisoa tsena li fana ka ts'ebetso e sa bapisoeng le e 'ngoe, e leng se etsang hore e be khetho e phethahetseng bakeng sa lits'ebetso tse fapaneng. Ebang ke kaho, meralo ea motheo kapa merero ea indasteri, liphaephe tsa rona tse phuthetsoeng ka arc tse koahetsoeng ka spiral li etselitsoe ho fana ka liphetho tse ntle. Tšepa hore boiphihlelo le boiphihlelo ba rona li tla u fa liphaephe tsa tšepe tsa boleng bo holimo ka ho fetisisa 'marakeng.








