Mugihe cyo gukwirakwiza amashanyarazi, umunara wicyuma nikintu gikomeye. Mugihe cyo gukora ibyuma byumunara wibyuma, uburyo bwo gukora ibicuruzwa bishyushye bishyirwa mubikorwa hejuru kugirango birinde ubuso bwibicuruzwa byangirika kwangirika kwumwuka wo hanze nibidukikije bitandukanye. Gukoresha hot-dip galvanizing inzira irashobora kugera kubintu byiza byo kurwanya ruswa. Hamwe nibisabwa byokwirakwiza amashanyarazi, ibisabwa mubikorwa byo gukora ibicuruzwa biva mu byuma nabyo biri hejuru.
（1 principle Ihame shingiro ryo gushyushya galvaniza
Amashanyarazi ashyushye ashyushye, azwi kandi nka hot dip galvanizing, ni bumwe muburyo buhebuje bwo gutwikira ibyuma byubaka. Muri zinc yamazi, nyuma yicyuma kimaze kuvurwa kumubiri nubumara, igihangano cyicyuma cyinjijwe muri zinc yashongeshejwe nubushyuhe bwa 440 ℃ ~ 465 ℃ cyangwa hejuru kugirango bivurwe. Substrate yicyuma ikora hamwe na zinc yashongeshejwe kugirango ikore zahabu ya Zn Fe nigice cyiza cya zinc kandi itwikiriye ubuso bwose bwicyuma. Ubuso bwa galvanised bufite ubukana runaka, burashobora kwihanganira guterana gukomeye ningaruka, kandi bufite guhuza neza na matrix.
Ubu buryo bwo kubumba ntibufite gusa ruswa yo kurwanya ruswa, ahubwo ifite na Zn Fe alloy layer. Ifite kandi imbaraga zo kurwanya ruswa idashobora kugereranywa na galvanizing. Kubwibyo, ubu buryo bwo gusya burakwiriye cyane cyane kubidukikije bitandukanye byangirika nka acide ikomeye, alkali nigihu.
（2） Ibiranga imikorere yibishyushye bishyushye
Ifite umubyimba wuzuye kandi wuzuye wa zinc hejuru yicyuma, gishobora kwirinda guhuza ibyuma byubutaka hamwe nigisubizo icyo ari cyo cyose cyangirika kandi kirinda ibyuma byangirika. Mu kirere rusange, urwego ruto kandi rwinshi rwa zinc oxyde iba hejuru yubuso bwa zinc, bigoye gushonga mumazi, bityo igira uruhare runini mukurinda matrise yicyuma. Niba okiside ya zinc hamwe nibindi bice bigize ikirere bigira imyunyu ya zinc idashonga, ingaruka zo kurwanya ruswa nibyiza cyane.
Nyuma yo gushyushya ibishyushye, ibyuma bifite Zn Fe alloy layer, iroroshye kandi ifite imbaraga zo kurwanya ruswa idasanzwe mukirere cyumunyu wumunyu mwuka hamwe nikirere cyinganda. Bitewe no guhuza gukomeye, Zn Fe iribeshya kandi ifite imbaraga zo kwihanganira kwambara. Kuberako zinc ifite ihindagurika ryiza kandi igikoresho cyayo kivanze gifatanye neza na substrate yicyuma, igihangano gishyushye gishyushye gishobora gukorwa no gukubita imbeho, kuzunguruka, gushushanya insinga, kunama, nibindi bitarinze kwangiza.
Nyuma yo gushyushya ubushyuhe, igihangano cyicyuma gihwanye nubuvuzi bwa annealing, bushobora kunoza neza imiterere yubukorikori bwa substrate yicyuma, bikuraho imihangayiko yibikorwa byibyuma mugihe cyo gukora no gusudira, kandi bifasha guhindura icyuma.
Ubuso bwibikoresho byibyuma nyuma yo gushyuha birashyushye kandi byiza. Igice cya zinc cyera nigice kinini cya plastike ya zinc muri hot-dip galvanizing. Imiterere yacyo isa cyane na zinc nziza, kandi ifite guhindagurika, bityo iroroshye.
Igihe cyo kohereza: Kanama-26-2022
