TSINGSHAN STEEL

Imyaka 12 Yuburambe

Intangiriro ya duplex idafite ibyuma

amakuru-1Mu rwego rwibikoresho siyanse, ubwoko bushya bwibyuma bitazwi nka duplex ibyuma bidafite ibyuma bikora imiraba.Iyi mvange idasanzwe ifite imiterere yihariye, hamwe nicyiciro cya ferrite nicyiciro cya austenite buri kimwe cya kabiri cyigice cyakomeye.Ndetse igitangaje kurushaho ni uko ibyiciro byibuze bishobora kugera kuri 30%.

Duplex idafite ibyuma byerekana ibintu byiza byubukanishi kubera ibyiciro byayo bibiri.Hamwe na karubone nkeya, chromium iri hagati ya 18% na 28%, mugihe nikel ihagaze hagati ya 3% na 10%.Usibye ibi bice byingenzi, ubwoko bumwebumwe bwa duplex butagira ibyuma buba burimo ibintu bivanga nka molybdenum (Mo), umuringa (Cu), niobium (Nb), titanium (Ti), na azote (N).

Ibidasanzwe biranga iki cyuma bishingiye ku kuba ihuza imico myiza y’ibyuma bya austenitike na ferritic.Bitandukanye na ferrite mugenzi we, duplex idafite ibyuma byerekana plastike kandi ikomeye.Ikigeretse kuri ibyo, irerekana imbaraga zidasanzwe zo guhangayika kwangirika, bigatuma yifuzwa cyane mubikorwa bitandukanye.

Kimwe mu bintu by'ingenzi bitandukanya ibyuma bitagira ibyuma bitandukanya ibyuma ni ukurwanya ruswa, ni ubwoko busanzwe bwa ruswa bugaragara ahantu habi nko mu nganda zitunganya inyanja n’imiti.Kurwanya ruswa bishobora guterwa na chromium yo hejuru hamwe na molybdenum ugereranije nibyuma gakondo bitagira umwanda.

Microstructure idasanzwe ya duplex idafite ibyuma byongera uburebure bwayo, bigatuma ikwirakwira muburyo butandukanye.Irasanga ikoreshwa cyane mu nganda zisaba ibikoresho bikomeye kandi birwanya ruswa, harimo ubushakashatsi bwa peteroli na gazi yo mu nyanja, inganda zangiza, gutunganya imiti, n’ibikorwa remezo byo gutwara abantu.

Byongeye kandi, imbaraga zicyuma zituma ibishushanyo byoroheje kandi bidahenze cyane, bigatuma inganda zigera kubikorwa byiza.Kurwanya bidasanzwe kwangirika kwaho bituma ubuzima buramba kubikoresho nibikoresho, bikagabanya amafaranga yo kubungabunga igihe kirekire.

Mu myaka yashize, icyifuzo cya duplex kitagira ibyuma cyagaragaye cyane, aho ababikora bakora amanota mashya kugirango bahuze nibisabwa bitandukanye.Iterambere rigamije kunoza imitungo nko kurwanya ruswa, imbaraga, no gusudira, kurushaho kwagura ibyuma bishobora gukoreshwa.

Hamwe nubushakashatsi niterambere bikomeje, ejo hazaza ha duplex ibyuma bidafite ibyuma bisa nkibyiringiro.Abahanga naba injeniyeri bakomeje gushakisha uburyo bwo kuzamura ibiranga no kwagura ibikorwa byinganda zitandukanye.

Mugihe inganda ziharanira inzira zirambye, ibyuma bya duplex bitagira umuyonga bitanga igisubizo gifatika kubera kuramba, kongera gukoreshwa, no kugabanya ibikenerwa.Iyi miterere yangiza ibidukikije irabigaragaza nkumunywanyi ukomeye mu guhatanira ibikoresho birambye.

Muri make, duplex idafite ibyuma byerekana intambwe ishimishije mubumenyi bwa siyanse, ihuza ibintu byiza biranga ibyuma bya austenitike na ferritic.Hamwe nimikorere idasanzwe yubukanishi, kurwanya ubwoko butandukanye bwo kwangirika, no kwiyongera kwinganda mu nganda, iyi miti ivanze yiteguye guhindura uburyo twegera ibishushanyo mbonera ndetse n’inganda zikoreshwa mu nganda.


Igihe cyoherejwe: Nyakanga-18-2023