Liphaephe tsa tšepe tsa Spiral Welded Carbon Bakeng sa Liphaephe tsa Khase ea Tlhaho tse ka tlas'a lefatše - EN10219
E 'ngoe ea melemo e ka sehloohong easpiral welded carbon steel pipeke bokhoni ba ho hlahisa liphaephe tsa bophara bo fapaneng ka ho sebelisa marapo a bophara bo lekanang. Sena se molemo ka ho khetheha bakeng sa lisebelisoa tse hlokang litšepe tse moqotetsane ho hlahisa liphaephe tse kholo tsa tšepe tse bophara bo boholo. Ts'ebetso ena e ncha ea tlhahiso e tiisa hore liphaephe tse hlahisoang ha li tšoarelle feela ebile li matla, empa hape li na le boleng bo tsitsitseng.
Spiral welded carbon steel lipeipi li etselitsoe ka ho khetheha bakeng sa ho kenya lipeipi tsa khase ea tlhaho ka tlas'a lefatše 'me li latela litlhoko tse tiileng tsaEN10219. Tekanyetso ena e hlakisa litlhoko tsa phano ea tekheniki bakeng sa likarolo tse nang le sekoti tse cheselitsoeng ka sebopeho se batang sa litšepe tse se nang alloy le litšepe tse entsoeng hantle. Ka hona, peipi e loketse hantle bakeng sa ho sebelisoa liphaepheng tsa khase ea tlhaho tse ka tlas'a lefatše moo ho hanyetsanang le kutu le botšepehi ba sebopeho li leng bohlokoa.
Thepa ea Mechini
tšepe kereiti | bonyane matla a tlhahiso Mpa | Matla a tšepe | Bonyane bo bolelele % | Matla a fokolang a ts'usumetso J | ||||
Botenya bo boletsoeng mm | Botenya bo boletsoeng mm | Botenya bo boletsoeng mm | 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 naetrojene 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 e tlase ea Al/N ea 2:1, kapa haeba likarolo tse ling tse tlamang tsa N li le teng. Lintlha tse tlamang N li tla tlalehoa Tokomaneng ea Tlhahlobo. |
Ntle le ho feto-fetoha ha eona ha ho etsoa liphaephe tse kholo tsa tšepe tse bophara bo boholo, liphaephe tsa tšepe tsa spiral welded carbon li fana ka melemo e meng e mengata. Theknoloji ea eona ea spiral welding e etsa bonnete ba hore phala e na le sebaka se ka hare se boreleli, ho fokotsa ho theoha ha khatello le ho ntlafatsa litšobotsi tsa phallo. Sena se bohlokoa haholo lits'ebetsong tsa lipeipi tsa khase ea tlhaho, moo phallo e sebetsang hantle le e sa sitisoeng e leng bohlokoa bakeng sa ts'ebetso e nepahetseng.
Ho feta moo, peipi ea tšepe ea spiral welded carbon steel e hanyetsana haholo le kutu, e etsa hore e be e loketseng bakeng sa ho kenngoa ka tlas'a lefatše moo ho pepesehela mongobo le likarolo tsa mobu ho ka senyang botšepehi ba phala. Kaho ea eona e tiileng le thepa e tšoarellang e etsa hore e be e loketseng bakeng sa tšebeliso ea nako e telele maemong a thata a tikoloho.
Tšebeliso ea boleng bo phahameng ba carbon steel e etsa bonnete ba hore liphaephe li na le thepa e babatsehang ea mechine, ho kenyelletsa le matla a phahameng a ho tsitsa le ho hanyetsa tšusumetso. Sena se etsa hore e be khetho e tšepahalang bakeng sapeipi ea khase ea tlhaho e ka tlas'a lefatšemeaho, kaha liphaephe li ka ba tlas'a meroalo e ka ntle le tšenyo e ka bang teng.
Ka kakaretso, lipeipi tsa tšepe tsa spiral welded carbon steel ke khetho e ntle ka ho fetisisa bakeng sa lits'ebetso tsa lipeipi tsa khase ea tlhaho tse ka tlas'a lefatše. Ts'ebetso ea eona e ncha ea tlhahiso e lumella tlhahiso ea liphaephe tse kholo tsa tšepe tse bophara bo boholo ho tloha litšepe tse moqotetsane, ho netefatsa boleng bo tsitsitseng le ho tšoarella. Pipe e kopana le litlhoko tsa maemo a EN10219 'me e na le khanyetso e ntle ea kutu, bokaholimo bo boreleli bo kahare le thepa e matla ea mochini, e etsa hore e be e loketseng ts'ebeliso ea nako e telele ea ts'ebeliso ea nako e telele lits'ebetsong tsa lipeipi tsa khase ea tlhaho tse ka tlas'a lefatše.