I-ASTM A335 P9, eyaziwa nangokuthi i-ASME SA335 P9, iyipayipi lensimbi ye-ferritic alloy engenamthungo yesevisi yokushisa okuphezulu ene-Inombolo ye-UNS K90941.
Izinto ezihlanganisa i-chromium kanye ne-molybdenum ngokuyinhloko. Okuqukethwe kwe-chromium kusuka ku-8.00 - 10.00%, kuyilapho okuqukethwe kwe-molybdenum kuphakathi kuka-0.90% - 1.10%.
P9inamandla amahle kakhulu kanye nokumelana okuhle nokugqwala ezindaweni ezishisa kakhulu futhi isetshenziswa kabanzi kuma-boiler, imishini ye-petrochemical, kanye neziteshi zamandla lapho kudingeka khona izindawo ezishisa kakhulu nezinomfutho ophezulu.
⇒ Izinto: Ipayipi lensimbi ye-ASTM A335 P9 / ASME SA335 P9 engenamthungo.
⇒Ububanzi bangaphandle: 1/8"- 24".
⇒Ubukhulu bodonga: Izidingo ze-ASME B36.10.
⇒Ishejuli: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 kanye ne-SCH160.
⇒Ukuhlonza: STD (ejwayelekile), XS (eqinile kakhulu), noma XXS (ephindwe kabili enamandla kakhulu).
⇒Ubude: Ubude obuqondile noma obungahleliwe.
⇒Ukwenza ngokwezifiso: Ububanzi obungaphandle obungejwayelekile, ukujiya kodonga, ubude, njll. ngokwezidingo.
⇒Izinto zokufaka: Singahlinzeka ngokugoba kwezinto ezifanayo, ama-stamping flanges, kanye neminye imikhiqizo esekela amapayipi ensimbi.
⇒Isitifiketi se-IBR: Isitifiketi se-IBR singanikezwa uma kudingeka.
⇒Ukuphela: Isiphetho esilula, isiphetho esibekiwe, noma isiphetho sepayipi elihlanganisiwe.
⇒Ukupakisha: ibhokisi lokhuni, ibhande lensimbi noma ukupakisha ucingo lwensimbi, isivikelo sokugcina sepayipi lepulasitiki noma lensimbi.
⇒Ezokuthutha: ngemikhumbi noma ngezindiza.
Ipayipi lensimbi le-ASTM A335 kumele lingabi nomthungo.
Ipayipi lensimbi elingenamthungo liyipayipi lensimbi elingenazo izihibe zokushisela kuyo yonke indawo.
Njengoba ipayipi lensimbi elingenamthungo lingenazo izithungo ezihlanganisiwe esakhiweni salo, ligwema izingozi zokuphepha ezingase zihlotshaniswe nezinkinga zekhwalithi yokushintshwa. Lesi sici sivumela ipayipi elingenamthungo ukuthi limelane nokucindezeleka okuphezulu, futhi isakhiwo salo sangaphakathi esifanayo siqinisekisa ubuqotho nokuphepha kwepayipi ezindaweni ezinokucindezeleka okuphezulu.
Ngaphezu kwalokho, ukuthembeka kwamapayipi e-ASTM A335 kuthuthukiswa ngokungezwa kwezinto ezithile zokuhlanganisa izimo zokushisa okuphezulu kanye nokucindezela okuphezulu.
Izinhlobo zokwelapha ukushisa ezitholakalayo zezinto ze-P9 zifaka phakathi ukufuthwa okugcwele noma okungashisi kakhulu, kanye nokulungisa nokulungisa. Inqubo yokulungisa nokulungisa inokushisa kokulungisa okungu-1250°F [675°C].
Izinto eziyinhloko zokuhlanganisa i-P9 yilezi:CrfuthiMo, okuyi-chromium-molybdenum alloys.
I-Cr (i-Chromium): Njengengxenye eyinhloko ye-alloy, i-Cr inikeza amandla aphezulu okushisa kanye nokumelana ne-oxidation. Yakha ifilimu eliqinile le-chromium oxide ebusweni bensimbi, okwandisa ukuzinza kanye nokumelana nokugqwala kwepayipi emazingeni okushisa aphezulu.
I-Mo (i-Molybdenum): Ukwengezwa kwe-Mo kuthuthukisa kakhulu amandla nokuqina kwama-alloy, ikakhulukazi ezindaweni ezishisa kakhulu. I-Mo iphinde isize ekuthuthukiseni amandla okuhamba kwezinto, okungukuthi ikhono lokumelana nokuguquguquka ngaphansi kokushisa isikhathi eside.
Izakhiwo Zokunamathela
P5, P5b, P5c, P9,P11, P15, P21, kanye ne-P22: Amandla okubamba kanye nokukhiqiza kuyafana.
P1, P2, P5, P5b, P5c,P9, P11, P12, P15, P21, kanye ne-P22: Ukunwebeka okufanayo.
AIthebula 5 linikeza amanani aphansi abaliwe.
Lapho ubukhulu bodonga buphakathi kwamanani amabili angenhla, inani elincane lokwelulwa linqunywa yifomula elandelayo:
I-Longitudinal, P9: E = 48t + 15.00 [E = 1.87t + 15.00]
Phenduka, P9: E = 32t + 15.00 [E = 1.25t + 15.00]
kuphi:
E = ukunwebeka ngamasentimitha angu-2 noma angu-50 mm, %,
t = ukujiya kwangempela kwamasampula, ngo. [mm].
Ubulukhuni
I-P9 ayidingi ukuhlolwa kobulukhuni.
P1, P2, P5, P5b, P5c, P9, P11, P12, P15, P21, P22, kanye ne-P921: Akukho ukuhlolwa kobulukhuni okudingekayo.
Uma ububanzi bangaphandle bungaphezulu kwamasentimitha ayi-10 [250 mm] kanye nobukhulu bodonga ≤ 0.75 amasentimitha [19 mm], konke kufanele kuhlolwe ngamanzi.
Ingcindezi yokuhlola ingabalwa kusetshenziswa i-equation elandelayo.
P = 2St/D
P= ingcindezi yokuhlola ye-hydrostatic ku-psi [MPa];
S= ukucindezeleka kodonga lwepayipi ku-psi noma ku-[MPa];
t= ubukhulu bodonga obucacisiwe, ubukhulu bodonga obujwayelekile ngokwenombolo yeshejuli ye-ANSI ecacisiwe noma izikhathi ezingu-1.143 ubukhulu bodonga obucacisiwe, ngo. [mm];
D= ububanzi obucacisiwe bangaphandle, ububanzi bangaphandle obuhambisana nosayizi wepayipi le-ANSI elicacisiwe, noma ububanzi bangaphandle obubalwe ngokungeza u-2t (njengoba kuchaziwe ngenhla) kububanzi bangaphakathi obucacisiwe, ku. [mm].
Isikhathi sokuhlola: gcina okungenani amasekhondi angu-5, akukho ukuvuza.
Uma ipayipi lingahlolwa ngamanzi, kufanele kwenziwe ukuhlolwa okungabhubhisi ipayipi ngalinye ukuze kutholakale amaphutha.
Ukuhlolwa okungonakalisi kwezinto ze-P9 kufanele kwenziwe ngenye yezindlelaE213, I-E309 or E570.
E213: Ukuzijwayeza Ukuhlolwa Kwe-Ultrasonic Kwepayipi Lensimbi kanye Namapayipi;
I-E309: Ukuzijwayeza Ukuhlolwa Kwamanje kwe-Eddy kwemikhiqizo ye-Steel Tubular esebenzisa i-Magnetic Saturation;
E570: Ukuzijwayeza Ukuhlolwa Kokuvuza Kwe-Flux Kwemikhiqizo Ye-Ferromagnetic Steel Tubular;
Izinguquko Ezivumelekile Ngobubanzi
Ukuphambuka kobubanzi kungahlukaniswa ngokuya ngokuthi 1. ngokusekelwe kububanzi bangaphakathi noma 2. ngokusekelwe kububanzi obujwayelekile noma bangaphandle.
1. Ububanzi bangaphakathi: ±1%.
2. I-NPS [DN] noma ububanzi bangaphandle: Lokhu kuhambisana nokuphambuka okuvunyelwe kuthebula elingezansi.
Izinguquko Ezivumelekile Ekujiyeni Kodonga
Ubukhulu bodonga lwepayipi nganoma yisiphi isikhathi akumele budlule ukubekezelelana okucacisiwe.
Ubukhulu bodonga obuncane kanye nobubanzi bangaphandle bokuhlolwa ukuze kutholakale ukuthi kuyahambisana yini nale mfuneko yepayipi eli-odwe yi-NPS [DN] kanye nenombolo yeshejuli kuboniswe ku-I-ASME B36.10M.
Okuqukethwe kokumaka: Igama lomenzi noma uphawu lokuhweba; inombolo ejwayelekile; ibanga; ubude kanye nophawu olwengeziwe "S".
Izimpawu zokucindezela kwe-hydrostatic kanye nokuhlolwa okungabhubhisi kuthebula elingezansi nazo kufanele zifakwe.
Indawo yokumaka: Ukumaka kufanele kuqale cishe ngamasentimitha angu-300 (300 mm) kusukela ekugcineni kwepayipi.
Kumapayipi afinyelela ku-NPS 2 noma ngaphansi kwamamitha angu-3 ubude, uphawu lolwazi lunganamathiselwa kuthegi.
Ipayipi lensimbi le-ASTM A335 P9 lisetshenziswa kabanzi kuma-boiler, iziteshi zikagesi zemishini ye-petrochemical, njll., ezidinga ukumelana nokushisa okuphezulu kanye nokucindezela okuphezulu ngenxa yokushisa okuphezulu kanye nokumelana nokucindezela okuphezulu.
Amabhoyila: Ikakhulukazi ekufakweni kwamapayipi omusi kanye namapayipi okuvuselela kabusha amabhoyila abucayi kakhulu kanye nabucayi kakhulu okushisa okuphezulu kakhulu kanye nokucindezela.
Imishini ye-Petrochemical: Njengemipayipi ye-cracker kanye namapayipi okushisa okuphezulu, aphatha umusi namakhemikhali okushisa okuphezulu, adinga izinto ezinokumelana nokushisa okuhle kakhulu nokugqwala.
Iziteshi zikagesi: Kwamapayipi amakhulu omusi kanye nama-heater anomfutho ophezulu, kanye namapayipi angaphakathi e-turbine ukuze abhekane nezinkathi ezinde zokushisa okuphezulu kanye nomfutho.
Izinto ze-P9 zinezinga lazo ezijwayelekile ezinhlelweni ezahlukene zezinga zikazwelonke.
EN 10216-2: 10CrMo9-10;
GB/T 5310: 12Cr2Mo;
I-JIS G3462: STBA 26;
I-ISO 9329: 12CrMo195;
I-GOST 550: 12ChM;
Ngaphambi kokukhetha noma yikuphi okufana nakho, kunconywa ukuthi kwenziwe ukuqhathaniswa kokusebenza okuningiliziwe kanye nokuhlolwa ukuqinisekisa ukuthi okunye okufana nakho kuzohlangabezana nezidingo zomklamo wokuqala.
Selokhu yasungulwa ngo-2014,Insimbi yeBotopisibe ngumhlinzeki ohamba phambili wamapayipi ensimbi yekhabhoni eNyakatho yeShayina, eyaziwa ngenkonzo enhle kakhulu, imikhiqizo esezingeni eliphezulu, kanye nezixazululo eziphelele.
Le nkampani inikeza amapayipi ahlukahlukene ensimbi yekhabhoni kanye nemikhiqizo ehlobene nayo, kufaka phakathi ipayipi lensimbi elingenamthungo, i-ERW, i-LSAW, kanye ne-SSAW, kanye nohlu oluphelele lwezihlanganisi zamapayipi nama-flange. Imikhiqizo yayo ekhethekile ifaka phakathi ama-alloy ebanga eliphezulu kanye nezinsimbi ezingagqwali ze-austenitic, ezenzelwe ukuhlangabezana nezidingo zamaphrojekthi ahlukahlukene amapayipi.
Sicela uzizwe ukhululekile ukuxhumana nathi uma unezidingo noma imibuzo mayelana namapayipi ensimbi. Silangazelela ukuthola ulwazi lwakho futhi silangazelela ukukusiza.
