Ni izihe nyungu z'ibicuruzwa bivangwa na ruswa
Imiti irwanya ruswa muri rusange ntishobora gukoreshwa mubidukikije byangirika hamwe no kugabanuka gukomeye cyangwa gukora cyane (ibidukikije bya anoxic), kandi imikorere yibicuruzwa ihora ivugururwa, kandi irakoreshwa cyane, kandi hariho nabakora ibicuruzwa byinshi, uburyo hitamo uwabikoze akubereye siyanse.Ku ruhande rumwe, ubumenyi bugomba gusuzumwa mubijyanye nigiciro, naho izindi ngingo nazo zigomba gutekerezwa byuzuye, nko kumenya niba uwabikoze agenzurwa kandi niba serivisi nyuma yo kugurisha yemerewe.
Kurwanya ruswa
Ni ubuhe bwoko bw'imiti irwanya ruswa?
1. Kubora ibyuma bitagira umwanda
Ahanini bivuga ibyiciro 300 bisanzwe bitagira ibyuma 304, 316L, 317L, nibindi birwanya kwangirika kwikirere cyangwa amazi yinyanja;austenitis ibyuma bidafite ingese 904L, 254SMO hamwe no kurwanya ruswa;ibyuma bya duplex 2205, 2507, nibindi.;ibibyimba birwanya ruswa birimo CU 20, nibindi, nibindi
2. Urufatiro rushobora kwihanganira ruswa
Ahanini Hastelloy alloy na NI-CU alloy, nibindi. Kubera ko icyuma NI ubwacyo gifite isura yububiko bushingiye kumaso, imiterere yacyo ya kirisiti ituma yakira ibintu byinshi bivanga kuruta FE, nka CR, MO, nibindi, kugirango bigerweho kurwanya Ubushobozi bwibidukikije bitandukanye;icyarimwe, nikel ubwayo ifite ubushobozi runaka bwo kurwanya ruswa, cyane cyane ubushobozi bwo kurwanya ruswa iterwa na ion ya chloride.Mubidukikije bikomeye byo kwangirika kwangirika, ibidukikije bivanze na acide, hamwe nibisubizo birimo halogene ion, nikel ishingiye kuri nikel-irwanya ruswa ihagarariwe na Hastelloy ifite ibyiza byuzuye kurenza ibyuma bidafite ibyuma.
3.Hastelloy ni iya nikel-molybdenum-chromium-fer-tungsten nikel ishingiye ku mavuta.Nibimwe mubikoresho bigezweho birwanya ruswa.Irwanya cyane cyane chlorine itose, chloride itandukanye ya okiside, ibisubizo byumunyu wa chloride, aside sulfurike hamwe nu munyu wa okiside, kandi ifite imbaraga zo kurwanya ruswa mubushyuhe buke na acide hydrochloric.Kubwibyo, mu myaka mirongo itatu ishize, yakoreshejwe cyane mubidukikije byangirika, nk'inganda z’imiti, inganda za peteroli, inganda za gaze ya flue, impapuro nimpapuro, kurengera ibidukikije n’izindi nganda.Amakuru atandukanye yo kwangirika ya Hastelloy alloys arasanzwe, ariko ntashobora gukoreshwa nkibisobanuro, cyane cyane mubidukikije bitazwi, kandi ibikoresho bigomba gutoranywa nyuma yo kwipimisha.Nta Cr ihagije ihari muri Hastelloy kugirango irwanye ruswa mu bidukikije cyane, nka aside nitricike ishyushye.Umusaruro wuruvange rwibanze cyane cyane mubidukikije bitunganyirizwa imiti, cyane cyane imbere ya aside ivanze, nkumuyoboro usohora sisitemu ya gazi ya disulfurizasi.
Igihe cyo kohereza: Gicurasi-15-2023
