Amakuru

Ihame ryibisekuru byo gushyushya-guswera
Gushyushya ibishyushye ni inzira ya metallurgical chimique reaction. Urebye kuri microscopique, inzira yo gushyushya-guswera ikubiyemo ibintu bibiri bingana: kuringaniza amashyuza hamwe no guhinduranya ibyuma bya zinc. Iyo ibice byibyuma byinjijwe muri zinc yashongeshejwe hafi 450 ℃, ibice byicyuma mubushyuhe bwicyumba bikurura ubushyuhe bwamazi ya zinc. Iyo ubushyuhe burenze 200 ℃, imikoranire hagati ya zinc nicyuma igenda igaragara buhoro buhoro, kandi zinc yinjira murwego rwo hejuru rwibice byicyuma.

Mugihe ubushyuhe bwibyuma bigenda byegereza buhoro buhoro ubushyuhe bwamazi ya zinc, ibice bivanze bifite ibipimo bitandukanye bya zinc bigizwe hejuru yicyuma, bigakora imiterere yuburyo bwa zinc. Uko ibihe bigenda bisimburana, ibice bitandukanye bivanze muri coating byerekana umuvuduko ukura. Urebye kuri macro, inzira yavuzwe haruguru irigaragaza nkibice byibyuma byibizwa mumazi ya zinc, bigatera kubira hejuru ya zinc. Mugihe imyunyu ngugu ya zinc reaction igenda iringaniza buhoro buhoro, ubuso bwamazi ya zinc buratuza buhoro buhoro.
Iyo igice cyicyuma kizamuwe kugeza kurwego rwamazi ya zinc, nubushyuhe bwicyuma kigabanuka gahoro gahoro kugeza munsi ya 200 ℃, reaction ya chimique ya zinc irahagarara, hanyuma hashyirwaho igipande gishyushye gishyushye, hamwe nubunini bwagenwe.
Umubyibuho ukenewe kubintu bishyushye bishyushye
Ibintu nyamukuru bigira ingaruka kumubyimba wa zinc zirimo: substrate yicyuma cyububiko, ububobere bwubutaka bwibyuma, ibirimo no gukwirakwiza ibintu bikora silikoni na fosifore mubyuma, guhangayikishwa imbere kwicyuma, ibipimo bya geometrike yibice byibyuma, hamwe nuburyo bwo gushyushya ibintu.
Ibipimo ngenderwaho mpuzamahanga nu Bushinwa bishyushye bigabanijwemo ibice bishingiye ku bunini bwibyuma. Ubunini bwisi yose hamwe nubutaka bwaho bwa cinc bugomba kugera kubyimbye bijyanye kugirango hamenyekane ruswa yangirika ya zinc. Igihe gisabwa kugirango ugere ku bushyuhe bwumuriro hamwe na zinc fer ihindagurika iringaniza itandukana kubice byibyuma bifite ubunini butandukanye, bikavamo ubunini butandukanye. Impuzandengo yikigereranyo cyuburinganire mubipimo bishingiye kuburambe bwuburambe mu nganda agaciro k’amahame ashyushye ya dip-galvanizing yavuzwe haruguru, kandi ubunini bwaho ni agaciro k'uburambe busabwa kugirango harebwe ikwirakwizwa ry'uburinganire bwa zinc hamwe n'ibisabwa kugirango irwanye ruswa .

Kubwibyo, ibipimo bya ISO, ibipimo byabanyamerika ASTM, ibipimo byabayapani JIS, hamwe nubushinwa bifite ibisabwa bitandukanye gato kubyerekeranye na zinc, kandi itandukaniro ntabwo rifite akamaro.
Ingaruka ningaruka za hot-dip galvanised coating thick
Ubunini bwikibiriti gishyushye kigena kurwanya ruswa yibice byashizweho. Kubiganiro birambuye, nyamuneka reba amakuru afatika yatanzwe na American Hot Dip Galvanization Association kumugereka. Abakiriya barashobora kandi guhitamo umubyimba wa zinc uri hejuru cyangwa munsi yubusanzwe.
Biragoye kubona igifuniko kinini mubyakozwe mu nganda ku byuma byoroheje bifite ubuso bworoshye bwa 3mm cyangwa munsi yayo. Byongeye kandi, umubyimba wa zinc utagereranijwe nuburinganire bwibyuma birashobora kugira ingaruka kumyifatire hagati yigitereko na substrate, kimwe nubwiza bwikigaragara. Igipfundikizo kirenze urugero kirashobora gutuma isura igaragara neza, ikunda gukonjeshwa, kandi ibice byashizweho ntibishobora kwihanganira kugongana mugihe cyo gutwara no kuyishyiraho.
Niba hari ibintu byinshi bikora nka silicon na fosifore mubyuma, biragoye cyane kubona impuzu zoroshye mubikorwa byinganda. Ni ukubera ko ibirimo silikoni mubyuma bigira ingaruka kumikurire yicyuma cya zinc fer alloy layer, bizatera zeta phase zinc fer alloy layer gukura byihuse kandi bigasunika icyiciro cya zeta kugana hejuru yuburinganire, bikaviramo gukomera kandi Ubuso butagaragara bwububiko, butanga ibara ryijimye ryijimye hamwe no gufatana nabi.
Kubwibyo, nkuko byavuzwe haruguru, hari ukutamenya neza imikurire ya hot-dip galvanized coatings. Mubyukuri, akenshi biragoye kubona urwego runaka rwubushyuhe bwo kubyara, nkuko bigaragara mubipimo bishyushye bishyushye
Umubyimba nigiciro gifatika cyatanzwe nyuma yumubare munini wubushakashatsi, ukurikije ibintu bitandukanye nibisabwa, kandi ni siyansi kandi ishyize mu gaciro.