Emkhakheni wezinto zombhobho wezimboni, indinganiso yaseMelikaI-ASME SA335/ASTM A335 P9Amapayipi ensimbi angenamthungo asebenza endaweni ebalulekile ngenxa yezakhiwo zawo ezihlukile. Abantu abaningi bayadideka: Yenziwe ngayiphi impahla i-P9? Yiliphi izinga elijwayelekile le-P9 elifana nalo? Yiliphi izinga i-P9 ehambelana nalo esezingeni lesizwe? Okulandelayo kuyimpendulo enemininingwane kuwe.

I. Izici kanye Nezinkambu Zokusetshenziswa Kwezinto ze-P9
I-ASME SA335/ASTM A335 P9 ejwayelekile yaseMelika iyipayipi lensimbi elingenamthungo le-ferritic alloy elisebenza ngezimo zokusebenza ezishisa kakhulu. Inhloso yayo eyinhloko yokukhiqiza ukukhonza ama-boiler ashisa kakhulu, acindezela kakhulu kanye nalawo acindezela kakhulu, futhi isetshenziswa kabanzi ekukhiqizweni kwezingxenye ezibalulekile ezifana nama-superheater tubes, ama-reheater tubes, ama-gas guide tubes kanye nama-main steam tubes. Embonini ye-petrochemical, ukukhiqizwa kwama-boiler ashisa kakhulu, ama-superheater, ama-heat exchanger kanye nama-pipe fittings nakho akukwazi ukwenza ngaphandle kwama-P9 high-temperature alloy tubes. Ingagcina izakhiwo zomzimba nezamakhemikhali ezizinzile ezindaweni ezishisa kakhulu, iqinisekise ukusebenza okuphephile nokusebenza kahle kwemishini ehlobene.
Ii. Ukuqhathaniswa kwe-P9 namamaki ajwayelekile kazwelonke
Izinto ezisetshenziswa yi-standard yaseMelikaI-ASTM A335 P9Ipayipi lensimbi elingenamthungo le-alloy lilingana nebanga le-12Cr9Mo le-GB/T 5310 ejwayelekile yaseShayina. Uma kuqhathaniswa kusuka ezicini eziningi njengokwakheka kwamakhemikhali, izakhiwo zemishini kanye nesimo sokulethwa, lokhu okubili kunokufana okuphezulu kakhulu futhi kungasetshenziswa ngokushintshana. Ekukhiqizweni kwangempela kwezimboni, ukuqonda lobu budlelwano obuhambisanayo kungasiza amabhizinisi ukuba abe nokuguquguquka okwengeziwe ekukhetheni izinto futhi ahlangabezane nezidingo zephrojekthi ngaphansi kwezindinganiso ezahlukene.

Iii. Ukuhlaziywa Okuphelele Kwezindinganiso Zokusebenzisa
Izindinganiso zokusetshenziswa kwamapayipi ensimbi e-P9 superalloy yi-ASME SA335/SA335M kanye ne-ASTM A335/A335M, futhi cishe zifana nezindinganiso zikazwelonke.I-GB/T 9948, I-GB/T 5310kanye nezindinganiso zaseMelikaI-ASTM A213Ukunamathela ngokuqinile kulezi zindinganiso ekukhiqizeni kuqinisekisa ukuzinza nokuthembeka kwekhwalithi yamapayipi ensimbi angenamthungo e-P9 alloy, okwenza akwazi ukuhlangabezana nezidingo futhi asetshenziswe kahle kumaphrojekthi ahlukahlukene ezimboni emhlabeni jikelele.

Iv. Ukwembulwa Kokwakheka Kwamakhemikhali
Amapayipi ensimbi angenamthungo aseMelika ajwayelekile e-ASTM A335 P9 anezindinganiso eziqinile zokwakheka kwamakhemikhali:

C: ≤0.15. Ukulawulwa okunembile kokuqukethwe kwekhabhoni kubaluleke kakhulu ekulinganiseni amandla nokuqina kwensimbi.
I-Silicon: 0.25~1.00. Isakhi se-silicon sisiza ukuthuthukisa amandla nokuqina kwensimbi.
I-Mn: 0.30-0.60. I-Manganese idlala indima ebalulekile ekuqiniseni amandla nokuqina kwensimbi.
P≤0.025. Ukulawula ngokuqinile okuqukethwe kwe-phosphorus kungaqinisekisa ukusebenza okuzinzile kwensimbi.
S≤0.025. Okuqukethwe kwesalfure okufanelekile kunganciphisa ukuphuka okushisayo kwensimbi.
Cr: 8.00-10.00. I-Chromium ithuthukisa kakhulu ukumelana nokugqwala kanye nokumelana nokushiswa kwensimbi.
I-Mo: 0.90-1.10. I-Molybdenum ithuthukisa kakhulu amandla, ukuqina kanye namandla okushisa ensimbi.
Lezi zinto zisebenza ngokubambisana ukuze zinikeze amapayipi ensimbi angenamthungo e-P9 alloy ukusebenza okuhle kakhulu.

V. Ukubonakaliswa Kwezakhiwo Zemishini
Izakhiwo zomshini zamapayipi ensimbi angenamthungo e-P9 alloy nazo zinhle kakhulu:

Amandla okudonsa angu-≥415Mpa, okuqinisekisa ukuthi ayiphuki kalula uma icindezelwa ngamandla okudonsa.
Amandla okukhiqiza angama-≥205Mpa, okubonisa ikhono elihle kakhulu lokulwa nokuguqulwa.
Izinga lokunwebeka elingu-≥22% libonisa ukuthi izinto zinezici ezithile zokuguquguquka.
Izakhiwo ezinjalo zemishini ziyenza isebenze kahle ngaphansi kwezimo zokusebenza ezahlukahlukene eziyinkimbinkimbi. Khona-ke, ipayipi lensimbi elingenamthungo le-A335 P9 eline-high-pressure alloy elinezakhiwo ezinhle kangaka zemishini lenziwa kanjani? Chofoza kusixhumanisi sevidiyo: Ukugeleza kwenqubo yokukhiqizwa kwepayipi lensimbi elingenamthungo le-A335 P9, ukuze ufunde ngenqubo yonke okuhlanganisa ukukhiqizwa kanye nokwelashwa kokushisa.

Vi. Isimo Sokulethwa kanye Nobukhulu Bokucaciswa
Isimo sokulethwa: Ngokuvamile kufakwe ngokuphelele noma kufakwe i-isothermal, kujwayelekile + kuthambile. Lokhu kwelashwa kwesimo sokulethwa kungaqinisekisa ukuthi amapayipi ensimbi asebenza kahle ngesikhathi sokulethwa, ahlangabezana nezidingo zokucubungula nokusetshenziswa okulandelayo.
Ukucaciswa nosayizi: Kuhlanganisa ububanzi obungu-60.3-765*2-120. Ukucaciswa okuvamile kobubanzi kufaka phakathi u-60.3, 73, 88.9, 114.3, 168.3, 219.1, 273.1, 323.9, 355.6, 406.4, 457.2, 508, 559, 610, 660, 711, kanye no-762. Vele, amanye amasayizi angenziwa ngokwezifiso ngokuya ngezidingo ezikhethekile zamakhasimende ukuze kuhlangatshezwane nezidingo ezahlukahlukene zokucaciswa kwephrojekthi.
Kungakhathaliseki ukuthi abasafufusa bezimboni baqonde ulwazi lwezinto ezibonakalayo noma ochwepheshe ukukhetha izinto zokwakha amaphrojekthi, ukuqonda okuphelele kwamapayipi ensimbi angenamthungo aseMelika i-ASME SA335/ASTM A335 P9 kubaluleke kakhulu, okungasiza ekuqhubekeni kahle kwamaphrojekthi ahlukahlukene ezimboni.