Uma ufuna ukwazi ulwazi olwengeziwe, njengekhotheshini, imikhiqizo, izixazululo, njll., pqashaxhumana nathi ku-inthanethi.
I-Tianjin Sanon Steel Pipe Co., Ltd. ingumthengisi wamasheya. Ifektri yethu yamasheya iseDolobheni laseCangzhou, eSifundazweni saseHebei. Imithombo yethu eyinhloko yezimpahlaamapayipi ebhoyila, futhi izinto ezimele ziyiI-ASTM A335 P5/P11/P91/P92,I-ASME SA-106/SA-106MGR.B,I-GB/T 3087-200810#/20#. Izinto ezimele amapayipi epayipi yileziI-API 5L,I-API 5CT, izinto ezimele amapayipi okuqhekeka kwephethiloliI-GB/T 9948ziyi-15MoG/12CrMoVG. I-GB/T 6479-2013 imele izinto ezingu-10#/20#, amashubhu okushintshanisa ukushisa i-SA179/SA210/SA192, njll., amashubhu omshini i-GB/T 8162 amele izinto ezingu-10#/20#/Q345/42CrMo, i-EN10210 imele izinto ezingu-S355JOH/S355J2H, amashubhu esilinda segesi i-GB1 8248, amele izinto ezingu-34CrMo4/30CrMo.
Emikhakheni yokukhiqizwa kwamandla okushisa kanye nokucubungula i-petrochemical, lapho amazinga okushisa aphezulu kanye nokucindezela okuphezulu kuyizinto ezijwayelekile, insimbi ye-alloy ye-A335 P91 iyinto ebalulekile. Isetshenziswa kabanzi emigqeni emikhulu yomusi futhi iphinda ifudumale izingxenye ezishisayo ngenxa yamandla ayo amahle kakhulu okushisa okuphezulu, ukumelana nokuqhekeka, kanye nokumelana nokushiswa kwe-oxidation. Kodwa-ke, umbuzo ovamile uphakama ngesikhathi sokuthengwa noma ukusetshenziswa: Uyini umehluko phakathi kohlobo 1 nohlobo 2? Lesi sihloko sinikeza incazelo eningiliziwe.
Umehluko Omkhulu: Inqubo Yokukhiqiza kanye Nesakhiwo Esincane
Izidingo zokwakheka kwamakhemikhaliA335 P91zichazwa yizinga le-ASTM A335 uqobo. Ukuhlukaniswa kohlobo 1 nohlobo 2 akusuki ku-ASTM A335, kodwa kusuka kwelinye izinga elibalulekile elisekelayo: i-ASTM A213 (Incazelo Ejwayelekile ye-Ferritic Engenamthungo kanye ne-Austenitic Alloy-Steel ye-Boiler, i-Superheater, kanye nama-Heat-Exchanger Tubes).
Umehluko oyinhloko phakathi kwalezi zinhlobo ezimbili usenqubweni yokugcina yokukhiqiza yokwelapha ukushisa, okuholela ngqo ekwehlukeni kwesakhiwo sazo esincane.
Idlula ku-Normalizing + Tempering. Ipayipi lifakwa ku-normalizing ngaphezu kwezinga lokushisa elifaka i-austenitizing bese lifakwa ku-tempering ephezulu.
Isakhiwo Esincane: Sifinyelela isakhiwo se-martensite esiqiniswe ngokuphelele. Lesi yisimo esijwayelekile nesivamile kakhulu sensimbi ye-P91, enikeza inhlanganisela engcono kakhulu yezakhiwo zemishini.
Idlula ku-Subcritical Annealing. Ipayipi livalwa ekushiseni okungaphansi kwe-Ac1 (izinga lokushisa eliphansi elibucayi).
Isakhiwo Esincane: Isakhiwo saso sakhiwe yi-ferrite + carbides e-annealed. Asidluli enkambisweni ephelele yokulungisa isimo ukuze sakhe i-martensite.
Kungani Uhlobo 2 Lukhona?
Inqubo yoHlobo 2 ikhona ngokuyinhloko ukuze ihlangabezane nokubekezelelana okuqinile kakhulu.
Inqubo ye-Normalizing + Tempering ingabangela ukuphambuka okuncane noma izinguquko ekujuleni kwepayipi, okungaba yinkinga ezinhlelweni zokusebenza ezinezidingo zokunemba okuphezulu kakhulu.
•Ukufakwa kwe-subcritical kwenziwa ekushiseni okuphansi futhi kuyinqubo ethambile, okulondoloza kangcono i-geometry enembile kanye nobukhulu bepayipi ngemva kokusebenza okubandayo.
Umehluko Wokusebenza Nesexwayiso Esibalulekile
Umehluko obaluleke kakhulu usezicini zemishini, ikakhulukazi amandla okushisa aphezulu.
•Uhlobo 1 (N&T): Inamandla aphelele aphezulu kanye namandla aphezulu okuhamba adingekayo ngokwencazelo ejwayelekile. Yisimo esithandwayo nesijwayelekile sokuklama nokusetshenziswa.
•Uhlobo 2 (Oluhlanganisiwe): Amandla alo aphansi kakhulu kunohlobo 1. Amandla alo okushisa okuphezulu kanye nezakhiwo zalo zokukhasa azikwazi ukuhlangabezana izidingo zezinto ze-P91 ngokwezinga le-ASTM A335.
Ngakho-ke, izinto zohlobo lwesibili AKUMELE zisetshenziswe ngqo ezinsizakalweni zokushisa/zokucindezela okuphezulu! Uma amapayipi asesimweni esingaphansi kwe-annealed (Uhlobo lwesibili) ethengwa, umenzi noma umsebenzisi wokugcina KUMELE enze ukwelashwa kokushisa okuphelele nokulinganisela kuwo ngaphambi kokufakwa kokugcina. Lokhu kuguqula isakhiwo sawo esincane sibe yi-martensite eqiniswe ngokuphelele (okungukuthi, ukuyiguqula ibe yisimo sohlobo lwe-1), ngaleyo ndlela kufezwe izakhiwo ezidingekayo zemishini.
Ithebula Lokuqhathanisa Elifingqiwe
Kalula nje, i-A335 P91 Uhlobo 2 luyisimo "esiqediwe kancane", esidela zonke izakhiwo zamandla ukuze kube lula ukwenziwa kanye nobukhulu obuqinisekisiwe. Ngakolunye uhlangothi, Uhlobo 1 luyisimo "somkhiqizo oqediwe", esinazo zonke izakhiwo ezidingekayo zokusingatha izindawo ezishisa kakhulu nezinomfutho ophezulu.
Ngesikhathi sokuthenga nokuhlola, kubalulekile ukucacisa ukuthi yisiphi isimo osidingayo nokuqinisekisa ulwazi lokwelashwa kokushisa ezitifiketini zezinto. Ukuqinisekisa ukuthi amapayipi afakiwe anesakhiwo esincane kanye nezakhiwo ezifanele kubalulekile ekuqinisekiseni ukusebenza okuphephile nokuthembekile kwezitshalo zikagesi nezindawo zezimboni.
Isikhathi sokuthunyelwe: Septhemba 18-2025
