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Amakuru

inzira
Igikorwa → gutesha agaciro → gukaraba amazi → gutoragura → gukaraba amazi → kwibiza mu gufasha gufata isahani → gukama no gushyushya → gushyushya-guswera → kurangiza → gukonjesha → passivation → gukaraba → gukama → kugenzura
(1) Gutesha agaciro
Kwangiza imiti cyangwa gushingira kumazi ibyuma byangiza isuku birashobora gukoreshwa kugirango bigabanuke kugeza igihe igikorwa cyogejwe namazi.
(2) Gutoragura
Irashobora gutororwa hamwe na H2SO4 15%, thiourea 0.1%, 40 ~ 60 ℃ cyangwa HCl 20%, hexamethylenetetramine 1 ~ 3g / L, 20 ~ 40 ℃. Kwiyongera kwa inhibitori ya ruswa irashobora kubuza matrisa kwangirika cyane kandi bikagabanya kwinjiza hydrogène ya matrix. Kuvura nabi no gufata imiti bizatera kwifata nabi kwifuniko, nta shitingi ya zinc cyangwa gukuramo ibice bya zinc.
(3) Kwibiza
Birazwi kandi nkibikorwa byo guhuza, birashobora gutuma igice cyakazi gikora mbere yo kwibiza kugirango bongere umubano hagati yisahani na substrate. NH4Cl 15% ~ 25%, ZnCl2 2.5% ~ 3.5%, 55 ~ 65 ℃, 5 ~ 10min. Kugirango ugabanye NH4Cl ihindagurika, glycerine irashobora kongerwaho muburyo bukwiye.
(4) Kuma no gushyushya
Mu rwego rwo kwirinda ko igihangano kidahinduka bitewe n'izamuka rikabije ry'ubushyuhe mu gihe cyo kwibiza, no gukuraho ubushuhe busigaye, kugira ngo hatabaho guturika kwa zinc, bikaviramo guturika kwa zinc, ubusanzwe ubushuhe ni 120-180 ° C.
(5) Ashyushye cyane
Birakenewe kugenzura ubushyuhe bwumuti wa zinc, igihe cyo kwibiza n'umuvuduko aho akazi gakuwe mubisubizo bya zinc. Ubushyuhe buri hasi cyane, itembera ryamazi ya zinc irakennye, igifuniko kibyimbye kandi kitaringaniye, biroroshye kubyara igicucu, kandi isura nziza ni mibi; ubushyuhe buri hejuru, amazi ya zinc ni meza, amazi ya zinc biroroshye gutandukana nakazi, kandi ibintu byo kugabanuka no kubyimba biragabanuka. Gukomera, kunanutse, kugaragara neza, gukora neza; icyakora, niba ubushyuhe buri hejuru cyane, igihangano cyakazi hamwe ninkono ya zinc bizangirika cyane, kandi hazavamo umusaruro mwinshi wa zinc, ibyo bizagira ingaruka kumiterere ya zinc hanyuma bigatwara zinc nyinshi. Ku bushyuhe bumwe, igihe cyo kwibiza ni kirekire kandi igipande ni kinini. Iyo umubyimba umwe usabwa mubushyuhe butandukanye, bisaba igihe kirekire kugirango ushireho ubushyuhe bwo hejuru. Mu rwego rwo gukumira ubushyuhe bwo hejuru bwibikorwa byakazi no kugabanya imyanda ya zinc iterwa no gutakaza ibyuma, uruganda rusanzwe rufata 450 ~ 470 ℃, 0.5 ~ 1.5min. Inganda zimwe zikoresha ubushyuhe bwinshi mubikorwa binini hamwe no guta ibyuma, ariko wirinde ubushyuhe bwo gutakaza icyuma. Kugirango tunonosore amazi yumuti ushushe ushushe mubushyuhe bwo hasi, wirinde ko igifuniko kibyibushye cyane, kandi tunoze isura yikigina, 0.01% kugeza 0.02% bya aluminiyumu yongeyeho. Aluminium igomba kongerwaho muke inshuro nyinshi.
(6) kurangiza
Kurangiza igihangano nyuma yo gushiraho ni ugukuraho ubuso bwa zinc na zinc nodules, haba kunyeganyega cyangwa uburyo bwintoki.
(7) Passivation
Ikigamijwe ni ukunoza kurwanya kwangirika kwikirere hejuru yumurimo wakazi, kugabanya cyangwa kwongerera isura ingese yera, no gukomeza kugaragara neza. Byose byashizwemo na chromate, nka Na2Cr2O7 80 ~ 100g / L, aside sulfurike 3 ~ 4ml / L.
(8) Gukonja
Mubisanzwe bikonjesha amazi, ariko ubushyuhe ntibukwiye kuba hasi cyane kugirango wirinde akazi, cyane cyane gukina, guturika muri matrise kubera gukonja no kugabanuka.
(9) Kugenzura
Imigaragarire yikibiriti irasa, irambuye, itanyeganyega cyangwa iminkanyari. Igenzura ryimbitse rirashobora gukoresha igipimo cyubunini, uburyo bworoshye. Umubyimba wububiko urashobora kandi kuboneka muguhindura ingano ya zinc. Imbaraga zo guhuza zirashobora kugororwa nigitutu kigoramye, kandi icyitegererezo kigomba kugororwa kuri 90-180 °, kandi ntihakagombye kubaho gucikamo ibice. Irashobora kandi kugeragezwa mukubita inyundo iremereye.
2. Gahunda yo gushyushya ibishyushye bishyushye Igikoresho gishyushye gishyushye nigikorwa cyo gukora icyuma-zinc kivanze hagati ya materique yicyuma nigitereko cyiza cya zinc. Icyuma-zinc alloy layer igizwe hejuru yumurimo wakazi mugihe gishyushye. Icyuma nicyuma cya zinc byahujwe neza, kandi inzira irashobora gusobanurwa gusa nka: mugihe igihangano cyicyuma cyinjijwe muri zinc zashongeshejwe, igisubizo gikomeye cya zinc na alpha icyuma (intangiriro yumubiri) kibanza kugaragara kuri interineti. Iyi ni kristu ikorwa no gushonga atome ya zinc mubyuma byibanze muburyo bukomeye. Ibyuma byombi byahujwe, kandi gukurura hagati ya atome ni bito. Kubwibyo, iyo zinc igeze kubwuzuye mubisubizo bikomeye, atome zibiri za zinc na fer zirakwirakwira, kandi atome ya zinc yakwirakwijwe (cyangwa yinjiye) muri matrike yicyuma yimuka muri materique ya matrix, hanyuma ikagenda ikora hamwe na hamwe. icyuma, no gukwirakwiza Icyuma na zinc muri zinc zashongeshejwe bigizwe nuruvange rwa FeZn13, rwiroha munsi yinkono ishyushye ya galvanizing, bita zinc dross. Iyo igihangano cyakuwe mubisubizo bya zinc immersion, zinc igizwe neza hejuru yubuso, ni kristu ya mpandeshatu. Ibyuma byayo ntabwo birenze 0.003%.
Icya gatatu, imikorere yo gukingira igishyushye gishyushye gishyushye Ubunini bwumuriro wa electro-galvanised mubusanzwe ni 5-15 mm, naho hot-dip ya galvanizasi muri rusange iri hejuru ya 65 mm, ndetse ikagera no kuri 100μm. Gushyushya ibishyushye bifite ubwuzuzanye bwiza, gutwikiriye neza kandi nta organic organique. Nkuko twese tubizi, uburyo bwo kurwanya ruswa irwanya ikirere harimo kurinda imashini no kurinda amashanyarazi. Mugihe cyo kwangirika kwikirere, hariho firime zirinda ZnO, Zn (OH) 2 na karubone yibanze ya zinc hejuru yurwego rwa zinc, zishobora kugabanya kwangirika kwa zinc kurwego runaka. Filime ikingira (izwi kandi nka rust yera) yangiritse kandi hashyizweho firime nshya. Iyo igipimo cya zinc cyangiritse cyane kandi matrike yicyuma ikabangamiwe, zinc izabyara amashanyarazi ya matrix. Ubushobozi busanzwe bwa zinc ni -0.76V, naho ubushobozi bwicyuma ni -0.44V. Iyo zinc nicyuma bigize microbattery, zinc irashonga nka anode. Irinzwe nka cathode. Ikigaragara ni uko gushyushya-gushya bifite imbaraga zo kwangirika kwikirere kwangirika kwicyuma cyibanze kuruta amashanyarazi.
Icya kane, kugenzura imiterere ya zinc ivu na zinc mugihe cya hot-dip galvanizing
Ivu rya Zinc na zinc ntibigira ingaruka zikomeye gusa kumiterere yokwibiza kwa zinc, ahubwo binatera igifuniko kuba kibi kandi kibyara zincules. Byongeye kandi, ikiguzi cya hot-dip galvanizing cyiyongereye cyane. Mubisanzwe, zinc ikoreshwa ni 80-120kg kuri toni 1 yakazi. Niba ivu rya zinc na dross birakomeye, ikoreshwa rya zinc rizaba rigeze kuri 140-200kg. Kugenzura karubone ya zinc ahanini ni ukugenzura ubushyuhe no kugabanya ibibyimba biterwa na okiside yubuso bwa zinc. Bamwe mu bakora uruganda bakoresha umucanga wangiritse, ivu ryamakara, nibindi. Ibihugu byamahanga bikoresha imipira ya ceramic cyangwa ibirahuri hamwe nubushyuhe buke bwumuriro, ahantu ho gushonga cyane, kandi ntigire icyo ikora hamwe namazi ya zinc, bishobora kugabanya gutakaza ubushyuhe no kwirinda okiside. Ubwoko bwumupira biroroshye gusunikwa nakazi, kandi ntabwo bifatanye nakazi. Ingaruka kuruhande. Kugirango habeho imyanda ya zinc mumazi ya zinc, ahanini ni umusemburo wa zinc-fer hamwe na fluidite ikabije cyane iyo ibintu bya fer byashongeshejwe mumazi ya zinc birenze ubushobozi bwubu bushyuhe. Ibigize zinc muri dinc dross birashobora kuba hejuru ya 95%, bikaba bishyushye. Urufunguzo rwigiciro kinini cya zinc. Birashobora kugaragara uhereye kumurongo wa fer ya elegitoronike mumazi ya zinc ko ingano yicyuma gishonga, ni ukuvuga igihombo cyicyuma, gitandukanye nubushyuhe butandukanye nigihe cyo gufata. Hafi ya 500 ° C, gutakaza ibyuma byiyongera cyane hamwe no gushyushya no gufata umwanya, hafi mumibanire. Munsi cyangwa hejuru yurwego rwa 480 ~ 510 loss, gutakaza ibyuma byiyongera buhoro buhoro hamwe nigihe. Kubwibyo, abantu bahamagara 480 ~ 510 zone akarere kangiza. Muri ubu bushyuhe, amazi ya zinc azonona akazi hamwe ninkono ya zinc ikomeye cyane. Gutakaza ibyuma biziyongera cyane mugihe ubushyuhe buri hejuru ya 560 and, kandi zinc izangiza matrike yicyuma mugihe ubushyuhe buri hejuru ya 660 ℃. . Kubwibyo rero, isahani ikorerwa mu turere tubiri twa 450-480 ° C na 520-560 ° C.
5. Kugenzura ingano ya zinc
Kugabanya imyanda ya zinc, birakenewe kugabanya ibyunyunyu fer mumuti wa zinc, aribyo gutangirana no kugabanya ibintu byo gushonga ibyuma:
Kubika no kubika ubushyuhe bigomba kwirinda ahantu hahanamye cyane gushonga ibyuma, ni ukuvuga, ntibikore kuri 480 ~ 510 ℃.
⑵ Mugihe gishoboka, ibikoresho bya zinc bigomba gusudira hamwe nibyuma birimo karubone hamwe na silikoni nkeya. Ibirimo byinshi bya karubone bizihutisha kwangirika kwicyuma cyamazi ya zinc, kandi ibintu byinshi bya silicon birashobora kandi guteza imbere kwangirika kwicyuma kumazi ya zinc. Kugeza ubu, 08F ibyuma byujuje ubuziranenge bya karubone bikoreshwa cyane. Ibirimo bya karubone ni 0.087% (0,05% ~ 0,11%), silikoni ni .030.03%, kandi irimo ibintu nka nikel na chromium bishobora kubuza ibyuma kwangirika. Ntukoreshe ibyuma bisanzwe bya karubone, bitabaye ibyo gukoresha zinc bizaba binini kandi ubuzima bwinkono ya zinc buzaba bugufi. Hasabwe kandi gukoresha karibide ya silicon kugirango ikore zinc gushonga, nubwo ishobora gukemura igihombo cyicyuma, ariko inzira yo kwerekana imiterere nayo nikibazo.
Gukuraho icyapa kenshi. Ubushyuhe bwabanje kuzamurwa hejuru yubushyuhe bwibikorwa kugirango batandukane sinc ya sinc n'amazi ya zinc, hanyuma bamanurwe munsi yubushyuhe bwibikorwa, kuburyo sinc ya sinc irohama munsi yikigega hanyuma igatorwa hamwe ikiyiko. Ibice byashizwemo bigwa mumazi ya zinc nabyo bigomba gukizwa mugihe.
TNi ngombwa gukumira icyuma kiri mu isahani kinjizwa mu kigega cya zinc hamwe nakazi. Icyuma gitukura-cyijimye kirimo ibice bizakorwa mugihe icyuma gikoreshwa mugihe runaka, kandi kigomba kuyungurura buri gihe. Nibyiza kugumana agaciro ka pH kumurongo wa plaque hafi 5.
⑸ Hafi ya 0.01% aluminium mugisubizo cyo kwihutisha kwihutisha imiterere ya dross. Ubwinshi bwa aluminiyumu ntibuzamura gusa amazi yumuti wa zinc kandi byongere ubwiza bwikibiriti, ariko kandi bizafasha kugabanya imyanda ya zinc hamwe n ivumbi rya zinc. Umubare muto wa aluminiyumu ireremba hejuru y’amazi ni ingirakamaro mu kugabanya okiside, kandi bigira ingaruka cyane ku bwiza bwa coating, bigatera inenge.
Gushyushya no gushyushya bigomba kuba bimwe kugirango wirinde guturika no gushyuha.

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Igihe cyo kohereza: Nzeri-30-2021