Izinto ezizinzile ze-TP347H (ezifana ne-titanium noma i-niobium) amapayipi ashiselwe insimbi engagqwali ye-austenitic

I-TP347H Ipayipi elishiselwe lensimbi engagqwali iyinsimbi ekhethekile ye-austenitic, iyingxenye yochungechunge lwensimbi yamandla ashisayo, elinokuqina okuhle kokushisayo kanye nokumelana nokugqwala kwe-intercrystalline. Lokhu okubalulekile kulungele ukusetshenziswa emazingeni okushisa aphezulu, njengamashubhu e-boiler superheater, amashubhu afudumeza kabusha, amapayipi esitimu, nezishintshisi zokushisa ze-petrochemical. I-TP347H Ukusebenza okuhle kokushisela kwepayipi elishiselwe lensimbi engagqwali, elivumela ukuthi ligcine ubuqotho bezinto ezibonakalayo kanye nokumelana nokugqwala ngesikhathi senqubo yokukhiqiza.

Xhumana nathi

imininingwane yomkhiqizo

Izici ze-TP347H zepayipi elishiselwe insimbi engagqwali zifaka:

Amandla okushisa: angakwazi ukugcina izakhiwo ezinhle zemishini ezingeni lokushisa eliphezulu.

Ukumelana nokugqwala kwe-intercrystalline: ngokwengeza i-niobium (Nb) njengesiqinisi, ukugqwala kwe-intercrystalline kuvinjelwa ngempumelelo.

Ukumelana nokugqwala: kukhombisa ukumelana nokugqwala okuhle kwe-alkaline, emanzini olwandle nasezindaweni ezihlukahlukene ezine-asidi.

Ukusebenza kwe-Welding: kulungele inqubo ye-welding, kungaqinisekisa ikhwalithi nobuqotho be-weld.

Mayelana nokusetshenziswa, ipayipi elishiselwe lensimbi engagqwali i-TP347H lisetshenziswa kakhulu kusethi yomshini wokuphehla ugesi, ishubhu le-boiler superheater, ishubhu lokufudumeza kabusha, ipayipi lesitimu kanye nesishintshi sokushisa se-petrochemical kanye nezinye izinga lokushisa eliphezulu kanye nendawo enengcindezi ephezulu. Ngaphezu kwalokho, ilungele izimo ze-antioxidant, ngezinga lokushisa elivumelekile le-antioxidant elifinyelela ku-750 ℃.

Lapho kukhethwa futhi kusetshenziswa amapayipi ashiselwe ensimbi engagqwali ye-TP347H, okokusebenza kuhlangabezana nezindinganiso zamazwe ngamazwe ezihambisanayo, njenge-ASTM A213 ne-ASTM A312, ecacisa ukwakheka kwamakhemikhali, izakhiwo zemishini kanye nezidingo zenqubo yokukhiqiza. Ngaphezu kwalokho, ngenxa yezimpawu zayo zokusetshenziswa ekushiseni okuphezulu, kubaluleke kakhulu ukukhetha izindlela ezifanele zokuthungatha kanye nezinto zokushisela ukuze kuqinisekiswe ikhwalithi ye-weld seam kanye nokuqina kwesakhiwo sonke.