ASTM A335 P22 Specific Bututu (Chrome Moly Pipe)

Daga cikin dukkan karafan Cr{0}Mo gami,ASTM A335 Daraja P22wakiltar daya daga cikin mafi m mafita gahigh -matsi da high{1}} bututun zafi.
Yana hadawa2.25% chromiumkuma1% molybdenum, forming alloy matrix iya tsayayya creep, hadawan abu da iskar shaka, da kuma carburization a lokacin tsawaita daukan hotuna a yanayin zafi har zuwa620 digiri (1150 F).

Wannan abu ya dade da zamaaikin samar da wutar lantarki, matatun mai, da tsarin bututun mai, daidaita tazarar aiki tsakanin ƙananan maki kamar P11 da ci-gaban ferritic{1}}alloys na martensitic kamar P91.
Ma'auni na amincin inji, ƙirƙira, da kwanciyar hankali na dogon lokaci{0} yana sa ya dace donmasu kai tururi, bututun sake zafi, da manyan layin canja wuri-.

Mataki na P22 na cikinaji mai zafin raina karafa. Ayyukansa ya samo asali ne daga ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun kayan aikiferrite da barga chromium-molybdenum carbides (M₂₃C₆, M₆C).

Wannan tsarin ƙarfe na ƙarfe yana tabbatar da:

• Stable ferrite{0}}karamin tsarin carbideresistant zuwa coarsening karkashin thermal load.
• Kiyaye{0}} kwanciyar hankalisama da sa'o'in sabis na 100,000 a digiri 540-600.
• Madalla da weld mutuncilokacin da aka yi amfani da -zafin walda{1}} (PWHT).
• Sarrafa oxidation scaling, rage tarkacen bututu da ɓarnawar ƙarfe.

A yanayin zafi mai tsayi, P22 yana kula da acreep{0}}ƙarfin karyewa sama da 60 MPa a digiri 600, yana riƙe da siffarsa da mutuncinsa ko da a ƙarƙashin cyclic matsi da girgiza.

Ba kamar ƙananan ƙarfe na carbon ba, P22 yana buƙatar daidaithermal – sarrafa injinaa ko'ina cikin masana'antu.
Octal Pipe yana amfani da ingantattun fasahohin ƙirƙira marasa sumul tare daMaganin zafi mai yawa{0}don tabbatar da daidaiton ƙarfe na ƙarfe da daidaiton girma.

Hanyar Kera:

• Sokin Billet & Ƙafafu Mai zafi– Cr{0}Mo billlets ana huda su a digiri 1100-1150 ta amfani da extrusion rotary.
• Zane / Zane Mai Zafi– Yana tace girman hatsi da daidaiton bango.
• Daidaitawa (digiri 940-980)- Yana tace hatsi mai ciyayi kuma yana narkar da rarrabuwar carbide.
• Zazzabi (digiri 675-760)- Yana kawar da damuwa na ciki, yana dawo da ductility, da daidaita carbides.
• Gwajin Hydrostatic / Ultrasonic- Yana tabbatar da ƙarfin matsi da sautin tsari.

TheDual{0}} maganin zafi(al'ada + fushi) yana da mahimmanci. Yana samar da lafiyayyen hatsi{2}, matrix ferrite mai zafin rai wanda ke ƙin ƙwanƙwasa, yana riƙe da walƙiya ductility, kuma yana ba da aikin da za a iya tsinkaya cikin shekaru da yawa na sabis.

Ƙirƙirar al'ada kamarU{0}} lankwasawa, spools, da taron kaiana samunsu akan buƙatar wutar lantarki da tsarin matatar mai.

A yanayin aiki sama da digiri na 550, P22 yana samar da am Cr₂O₃ oxide Layerwanda ke manne da karfen tushe, yana hana spallation da asarar karfe.
Wannan fim yana aiki azaman akai{0} shamakin warkarwa, rike da zafi canja wuri yadda ya dace da kuma surface santsi a ko'ina tsawon daukan hotuna.

Mabuɗin halayen aiki:

• Ƙarfin Ƙarfin Ƙarfi:Barga a ƙarƙashin ci gaba da kaya da hawan keke.
• Juriya ga gajiyawar thermal:Kyakkyawan{0}matrix na hatsi yana hana tsagewa a ƙarƙashin zagayowar faɗaɗawa.
• Tsawon Girma:Ƙananan haɓakar zafi yana tabbatar da daidaitaccen daidaitawar walda.
• Ayyukan Weld:PWHT yana dawo da ductility kuma yana kawar da damuwa.
• Resistance Oxidation:Dogaran kariya har zuwa digiri 620, tsawaita lokacin dubawa.

ASTM A335 P22 gami bututu ana watsa shi sosai a cikisamar da wutar lantarki, petrochemical, kumatacewasassa, musamman a cikinsuperheater, reheater, da high{0}}matsi mai da'irar ruwa.

Aikace-aikace na Wakilai:

• Boiler & Reheater Tubingdon raka'o'i na subcritical da supercritical.
• Tsari Steam Headerskumamasana tattalin arzikia cikin wutar lantarki.
• Matatun man fetur da Furnace-rikiceinda carburizing da oxidizing gas ke tare.
• Harsashi Mai Canjin Zafikumamasu kawo sauyiyana buƙatar dogon lokaci{0} kwanciyar hankali na ƙarfe.

Rikodin sabis ɗin sa a cikin kayan aikin makamashi yana tabbatar da dacewa da shici gaba da aiki da ƙarancin ƙarancin lokaci, sanya P22 ya zama maɓalli mai mahimmanci a cikin manyan tsire-tsire masu inganci na duniya{1}.

Duk samfuran sun dace daASTM A335 / A999kumaASME SA335ma'auni, an tabbatar da su ta hanyar:

• Gwajin Hydrostatic ko ultrasonic
• Gwaje-gwajen flattening da walƙiya
• Tabbatar da kayan aikin injina (tensile, taurin)
• Duban girma da gani
• Tasirin zaɓi da gwajin rediyo

Ana isar da kowane tsari da shiTakaddun shaida na EN 10204 3.1/3.2, cikakken ganowa, da bayanan gwajin niƙa.

Octal Pipe yana ba da bututun ASTM A335 P22 a cikiyanayin al'ada da yanayin zafi, tabbatar da babban aikin da za'a iya iya faɗin- zafi da dacewa da walda.
Tare da ƙwararrun masana'antu na ISO-, haɗin QA/QC, da kuma aikin{1}}aiki, Octal Pipe yana ba da ingantaccen tsarin bututun gami donthermal, matatar, da kuma sarrafa masana'antu a dukan duniya.

Tuntuɓi yanzu

FAQ

 

 

Q1: Menene ASTM A335 P22 (ASME SA335 P22) bututu da ake amfani dashi?

A1:Maɗaukakin zafin jiki, babban{1}matsi na sabis na bututun wutar lantarki, matatun mai, da na'urori na petrochemical.

Q2: Menene tsarin gami na al'ada don bututu P22?

A2:2.25Cr - 1Mo (chrome-moly) ferritic gami karfe wanda aka ƙera don juriya mai rarrafe da iskar oxygen.

Q3: Menene maganin zafi da ake buƙata don bututu P22?

A3:Daidaita da zafin rai (N+T) tare da rubuce-rubucen zafi{1}} bayanan jiyya.

Q4: Yaushe zan zaɓi P22 maimakon P11 ko P91?

A4:Zaɓi P22 a matsayin matsakaicin matsakaicin matsayi{1} don ƙarin zafin jiki / buƙatu mai raɗaɗi fiye da P11, amma ba tare da mafi girman farashi/ sarrafawa galibi ana danganta su da P91.

Q5: Menene zan nema don tabbatar da ingancin bututu P22 kafin siyan?

A5:EN 10204 3.1/3.2 MTC tare da gano yanayin zafi, sakamakon injina/kemistri, taurin, da gwajin hydrostatic ko UT kamar yadda aka ƙayyade.

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