Spiral Welded Pipes for Underground Gas Pipelines EN10219

Tlhaloso e Khutšoanyane:

Re hlahisa liphaephe tsa rona tsa boleng ba boleng ba spiral welded, tse etselitsoeng ho fihlela litlhoko tse batloang ke ho kenya lipeipi tsa khase ka tlas'a lefatše. Liphaephe tsena li entsoe ka hloko ho latela litekanyetso tse thata tse behiloeng ho EN10219, ho netefatsa litlhoko tse phahameng ka ho fetisisa tsa phano ea tekheniki bakeng sa likarolo tse nang le sekoti tse entsoeng ka mokhoa o batang ka litšepe tse se nang alloy le tse ntle tsa lijo-thollo.


Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Ea ronaspiral welded lipeipike tharollo e nepahetseng bakeng sa merero eo ho eona ho hanyetsanang le kutu le ho tšepahala ha sebopeho li leng bohlokoa. Ts'ebetso e ikhethang ea spiral welding ha e ntlafatse matla a phala feela, empa hape e fana ka sebaka se se nang moeli, ho fokotsa kotsi ea ho lutla le ho hlōleha. Sena se etsa hore li tšoanelehe ka ho khetheha bakeng sa libaka tse thata tse atisang ho kopana le lits'ebetso tsa ka tlas'a lefatše.

Tekanyetso ea EN10219 e netefatsa hore liphaephe tsa rona li etsoa ka nepo le boleng, ho netefatsa hore li ka mamella likhatello le liphephetso tsa lipalangoang tsa khase ea tlhaho. E shebane le ho tšoarella le ho ts'epahala, liphaephe tsa rona tse cheselitsoeng ka spiral li etselitsoe ho fana ka ts'ebetso e tšoarellang nako e telele, ho fokotsa tlhoko ea tlhokomelo khafetsa le ho nchafatsoa.

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.

Ho phaella mohahong oa tsona o matsutla-tsutla, liphaephe tsena li bobebe ’me ho bonolo ho li tšoara, e leng ho etsang hore ho kenngoe ka tsela e sebetsang hantle le ho boloka chelete e ngata. Hore na o etsa projeke e ncha ea liphaephe kapa o ntlafatsa sistimi e teng, liphaephe tsa rona tse nang le li-spiral welded li fana ka motsoako o phethahetseng oa matla, ho tenyetseha le ho ipapisa le maemo a indasteri.

Khetha lipeipi tsa rona tse cheselitsoeng ka spiral bakeng sa litlhoko tsa hau tsa lipeipi tsa khase tse ka tlas'a lefatše 'me u be le khotso ea kelello e tlisoang ke ho sebelisa lihlahisoa tse khotsofatsang.EN10219litekanyetso. Tšepa boitlamo ba rona ba boleng le ts'ebetso ho netefatsa polokeho le katleho ea lisebelisoa tsa hau tsa khase.


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