Ibyuma bitagira umwanda nibikoresho bivangwa cyane mubuzima bwa buri munsi no mu nganda, kandi bitoneshwa kubera imbaraga zo kurwanya ruswa n'imbaraga. Mu bwoko bwinshi bwibyuma bitagira umwanda, 430 na 439 ni ubwoko bubiri busanzwe, ariko hariho itandukaniro ryingenzi hagati yabo.
Uhereye kubigize imiti
430 ibyuma bidafite ingese ni umusemburo urimo chromium 16-18% kandi nta nikel. Ibi biratanga imbaraga zo kurwanya ruswa mubidukikije, cyane cyane mubitangazamakuru bya okiside. 439 ibyuma bidafite ingese ni amavuta arimo chromium 17-19% na nikel 2-3%. Kwiyongera kwa nikel ntabwo bitezimbere gusa kwangirika kwibintu, ahubwo binongera ubukana bwabyo nibikorwa.
Kubireba imiterere yumubiri
430 ibyuma bitagira umuyonga nicyuma cya martensitike idafite ibyuma nimbaraga zikomeye, ariko ugereranije no guhindagurika gukomeye. Ibi bituma bikenerwa cyane mubikorwa bimwe na bimwe aho imbaraga zisabwa. 439 ibyuma bidafite ingese ni ubwoko bwibyuma bya austenitike bitagira umuyonga, bifite ihindagurika ryiza nubukomere, birashobora kwihanganira ihinduka rikomeye kandi ntibyoroshye kumeneka.
Mubyongeyeho, hari itandukaniro hagati yabiri murwego rwo gusaba. Bitewe no kwangirika kwangirika nimbaraga nyinshi zibyuma 430 bidafite ingese, ikoreshwa kenshi mugukora sisitemu yo gusohora amamodoka, imashini imesa, ibikoresho byo mu gikoni nibindi bikoresho bigomba kwihanganira ubushyuhe bwinshi n’ibidukikije byangirika. 439 ibyuma bidafite ingese bikoreshwa cyane mubikomoka kuri peteroli, ibikoresho byubuvuzi, gutunganya ibiryo nizindi nzego kubera uburyo bwiza bwo gutunganya no kurwanya ruswa.
Muri make, 430 na 439 ibyuma bidafite ingese bifite itandukaniro mubintu bigize imiti, imiterere yumubiri hamwe nimirima ikoreshwa. Gusobanukirwa itandukaniro bidufasha guhitamo neza no gukoresha ibikoresho byuma bidafite ingese kugirango duhuze ibikenewe nibidukikije bitandukanye.
Igihe cyo kohereza: Gashyantare-27-2024