Kwangirika ni ukwangirika cyangwa kwangirika kw'ibikoresho cyangwa imiterere yabyo biterwa n'ibidukikije. Kwangirika kwinshi kugaragara mu bidukikije, birimo ibintu byangiritse n'ibintu byangiza nka ogisijeni, ubushuhe, imihindagurikire y'ubushyuhe n'imyanda ihumanya.
Ingufu ziterwa n’ingufu zikunze kugaragara kandi zangiza cyane mu kirere. Ingufu ziterwa n’ingufu ziterwa na chloride iboneka mu buso bw’icyuma cy’urukuta rwa oxidized hamwe n’urukuta rurinda icyuma rwinjiramo ndetse n’imikorere y’icyuma imbere mu buryo bwa electrochemical iterwa na. Muri icyo gihe, iyoni za chlorine zirimo ingufu zimwe na zimwe z’amazi, zoroshye kwinjizwa mu mwenge w’urukuta rw’icyuma, imiyoboro ihuzwa igasimbuza ogisijeni mu rukuta rwa oxidized, ogisijeni zidashonga mu chloride zishonga, bityo imiterere y’ubuso ikajya mu buso bukora.
Ikizamini cya Cyclic Corrosion ni ubwoko bw'ikizamini cy'ibidukikije gikoresha cyane cyane ibikoresho byo gupima Cyclic Corrosion kugira ngo hakorwe simulation y'ubukorikori y'imiterere y'ibidukikije bya Cyclic Corrosion kugira ngo hamenyekane uburyo ibicuruzwa cyangwa ibikoresho by'icyuma birwanya ingese. Gigabanyijemo ibyiciro bibiri, kimwe kigamije ikizamini cy'ibidukikije karemano, ikindi kigamije simulation yihuse y'ubukorikori y'ikizamini cya Cyclic Corrosion.
Gupima ibidukikije hakoreshejwe uburyo bwa "Cyclic Corrosion" ni ugukoresha ibikoresho bimwe na bimwe bipima ahantu - icyumba cyo gupima "Cyclic Corrosion" (Ishusho), mu ngano y'ahantu hifashishijwe uburyo bwa "Cyclic Corrosion", bigatuma habaho imiterere ya "Cyclic Corrosion" kugira ngo harebwe ubwiza bw'uburyo ibicuruzwa birwanya "Cyclic Corrosion".
Ugereranije n’ibidukikije karemano, ingano y’umunyu wa chloride mu bidukikije byayo bya Cyclic Corrosion, ishobora kuba inshuro nyinshi cyangwa nyinshi z’ingano y’ibidukikije karemano rusange bya Cyclic Corrosion, ku buryo igipimo cya corrosion cyiyongera cyane, ikizamini cya Cyclic Corrosion ku bicuruzwa, igihe cyo kubona ibisubizo nacyo kiragabanuka cyane. Nk’aho mu bidukikije karemano byo gupima icyitegererezo cy’ibicuruzwa, corrosion yabyo ishobora gufata umwaka 1, mu gihe mu gupima imiterere y’ibidukikije bya Cyclic Corrosion, mu gihe kingana n’amasaha 24, ushobora kubona ibisubizo bisa.
Ingano y'ikirere yifashishijwe muri laboratwari ishobora kugabanywamo ibyiciro bine
(1)Ikizamini cya NSS (Neutral Cyclic Corrosion Test)ni uburyo bwo gupima ingese bwihuta bwagaragaye bwa mbere kandi ubu ni bwo bukoreshwa cyane. Bukoresha umuti wa saline wa 5% wa sodium chloride, agaciro ka PH gahinduwe mu rugero rudahinduka (6.5 ~ 7.2) nk'umuti wo gutera. Ubushyuhe bw'igerageza bufatwa kuri 35 ℃, igipimo cyo kwishyura cy'ibikenewe mu gihe cy'ingese muri 1 ~ 2ml / 80cm / h.
(2)Ikizamini cya ASIDE ASIDE CYCLE GENROSION (Ikizamini cya ASS)ikorwa hashingiwe ku isuzuma rya Cyclic Corrosion ritagira aho ribogamiye. Ni ugushyiramo aside acetic y'ibara rya glacial mu gisubizo cya 5% cya sodium chloride, kugira ngo agaciro ka PH k'igisubizo kagabanuke kagere kuri 3, igisubizo gihinduka aside, kandi ihinduka rya nyuma rya Cyclic Corrosion rikava kuri neutral Cyclic Corrosion rijya kuri aside. Igipimo cyayo cya corrosion cyihuta inshuro zigera kuri 3 ugereranyije n'isuzuma rya NSS.
(3)Ikizamini cya aside asetiki yihuta mu munyu w'umuringa (CASS test)ni ikizamini gishya cyakozwe mu mahanga cya "windwick Cyclic Corrosion", ubushyuhe bwa 50 ℃, umuti w'umunyu urimo umunyu muto w'umuringa - chloride y'umuringa, utera ingese cyane. Igipimo cyayo cya ngese kiri ku nshuro zigera kuri umunani z'ikizamini cya NSS.
(4)Ikizamini cyo gusimbuka kw'ingufu mu buryo bunyuranyeni ikizamini cyuzuye cya Cyclic Corrosion, mu by’ukuri kikaba ari ikizamini cya Cyclic Corrosion kidahinduka hamwe n’ikizamini cy’ubushuhe n’ubushyuhe gihoraho. Gikoreshwa cyane cyane ku bicuruzwa byose byo mu bwoko bwa cavity, binyuze mu kwinjira mu bidukikije bitose, kugira ngo Cyclic Corrosion idakorerwa gusa hejuru y’ibicuruzwa, ahubwo no imbere mu bicuruzwa. Ni ibicuruzwa biri mu Cyclic Corrosion n’ubushyuhe butose, imiterere ibiri y’ibidukikije isimburana, hanyuma bigasuzuma imiterere y’amashanyarazi n’iy’ibikoresho by’ibicuruzwa byose haba hari impinduka cyangwa nta mpinduka.
Ibisubizo by'ibizamini byo gupima imihindagurikire y'ikirere muri rusange bitangwa mu buryo bw'isuzuma aho kuba mu buryo bw'imibare. Hari uburyo bune bwihariye bwo gusuzuma.
①uburyo bwo gusuzuma amanotani agace kangiritse n'ubuso bwose bw'igipimo cy'ijanisha hakurikijwe uburyo runaka bwo kugabanyamo ibice byinshi, kugeza ku rwego runaka nk'ishingiro ry'isuzuma ryemewe, birakwiriye ku bipimo bitambitse kugira ngo bisuzumwe.
②uburyo bwo gupima ubushishoziBinyuze mu buremere bw'icyitegererezo mbere na nyuma y'uburyo bwo gupima ingese, banza ubare uburemere bw'igihombo cyange kugira ngo urebe ubwiza bw'icyitegererezo cyo kurwanya ingese, ni byiza cyane mu isuzuma ry'ubwiza bw'icyuma cyo kurwanya ingese.
③uburyo bwo kumenya uko isura yangirikani uburyo bwo kumenya ubuziranenge, ni ikizamini cya Cyclic Corrosion, niba ibicuruzwa bitanga corrosion impact kugira ngo hamenyekane icyitegererezo, amahame rusange y'ibicuruzwa akoreshwa cyane muri ubu buryo.
④uburyo bwo gusesengura imibare y'amakuru yangiritseitanga imiterere y'ibizamini bya corruption, isesengura ry'amakuru ya corruption, amakuru ya corruption kugira ngo hamenyekane urwego rw'icyizere cy'uburyo, bukoreshwa cyane cyane mu gusesengura, corruption mu mibare, aho kuba by'umwihariko ku isuzuma ry'ubuziranenge bw'ibicuruzwa runaka.
Isuzuma ry'ubushyuhe bw'icyuma kitagira umugese
Ikizamini cya Cyclic Corrosion cyavumbuwe mu ntangiriro z'ikinyejana cya makumyabiri, ni cyo gikoreshwa igihe kirekire cyane cya "corrosion test", gikundwa cyane n'abakoresha ibikoresho birwanya ingese, cyabaye ikizamini "cy'abantu bose". Impamvu z'ingenzi ni izi zikurikira: ① kizigama igihe; ② gihendutse; ③ gishobora kugerageza ibikoresho bitandukanye; ④ ibisubizo ni byoroshye kandi bisobanutse, bifasha gukemura amakimbirane y'ubucuruzi.
Mu by’ukuri, ikizamini cya Cyclic Corrosion cyakozwe mu byuma bitarangwamo ifu nicyo kizwi cyane - iki gikoresho gishobora gukora amasaha angahe? Abakora iki gikorwa ntibagomba kuba bashya muri iki kibazo.
Abacuruza ibikoresho bakunze gukoreshakudakoresha imbaragakuvurwa cyangwakunoza urwego rwo gusiga irangi ku buso, n'ibindi, kugira ngo hongerwe igihe cyo gupima icyuma gikozwe mu cyuma ...
Uko ibintu bibiri, chromium na molybdenum, ingano yabyo niyo irushaho gukomera kugira ngo habeho kwangirika kw'ibinogo n'imyenge. Uku kwangirika kw'ibinogo kugaragazwa mu buryo bwitwaUbudahangarwa bwo Kurwanya Imbunda BinganaAgaciro ka (PRE): PRE = %Cr + 3.3 x %Mo.
Nubwo nikeli idakomeza kurwanya ingese cyangwa icyuma gishyuha, ishobora kugabanya umuvuduko w’ingese nyuma y’uko inzira yo gushyuha itangiye. Bityo, ibyuma bitagira icyuma birimo nikeli bikunda gukora neza cyane mu igeragezwa rya Cyclic Corrosion, kandi bigabanya ingese cyane kurusha ibyuma bitagira icyuma bifite nikeli nke bifite ubwiyongere bungana n’ubw’ibifite ....
Utuntu duto: Ku gipimo cya 304 gisanzwe, ingese ya Cyclic Corrosion idafite aho ihuriye n’iy’ingirabuzima fatizo muri rusange imara amasaha 48 na 72; ku gipimo cya 316 gisanzwe, ingese ya Cyclic Corrosion idafite aho ihuriye n’ingirabuzima fatizo muri rusange imara amasaha 72 na 120.
Byagombye kwitabwaho koiKwangirika kw'ikirereikizamini gifite ingaruka mbi zikomeye mu gupima imiterere y'icyuma kitagira umugese.Ingano ya kloride muri Cyclic Corrosion mu igeragezwa rya Cyclic Corrosion iri hejuru cyane, irenze kure ibidukikije nyabyo, bityo icyuma kidashonga gishobora kwihanganira ingese mu bidukikije bikoreshwa mu buryo bufatika gifite chloride nkeya cyane nacyo kizangirika mu igeragezwa rya Cyclic Corrosion.
Ikizamini cya Cyclic Corrosion gihindura imikorere ya corrosion y'icyuma kidashonga, ntigishobora gufatwa nk'ikizamini cyihuta cyangwa ikizamini cyo kwigana. Ibisubizo ni uruhande rumwe kandi nta sano bingana n'imikorere nyayo y'icyuma kidashonga gishyizwe mu bikorwa.
Bityo rero dushobora gukoresha ikizamini cya Cyclic Corrosion kugira ngo tugereranye uburyo ubwoko butandukanye bw'ibyuma bitagira umugese burwanya ingese, ariko iki kizamini gishobora guha amanota ibikoresho gusa. Mu guhitamo ibikoresho by'ibyuma bitagira umugese by'umwihariko, ikizamini cya Cyclic Corrosion cyonyine ntabwo gitanga amakuru ahagije, kuko tuba tudasobanukiwe neza isano iri hagati y'imiterere y'ikizamini n'aho gikoreshwa.
Kubera iyo mpamvu, ntibishoboka gupima igihe cy'umurimo w'igicuruzwa hashingiwe gusa ku igeragezwa rya Cyclic Corrosion ry'icyitegererezo cy'icyuma kitagira umugese.
Byongeye kandi, ntibishoboka kugereranya ubwoko butandukanye bw'ibyuma, urugero, ntidushobora kugereranya ibyuma bitangiza ibyuma n'ibyuma bya karuboni bitwikiriwe, kuko uburyo bwo kwangirika bw'ibikoresho bibiri byakoreshejwe mu igeragezwa butandukanye cyane, kandi isano iri hagati y'ibyavuye mu isuzuma n'ibidukikije nyirizina aho ibicuruzwa bizakoreshwa ntabwo ari imwe.
Igihe cyo kohereza: Ugushyingo-06-2023