Amakuru

Amashanyarazi ashyushye ashyushye, azwi kandi nka hot dip galvanizing na hot dip galvanizing, nuburyo bwiza bwo kwirinda icyuma cyangirika, gikoreshwa cyane mubyuma byububiko nibikoresho bitandukanye mubikorwa bitandukanye.Ni ugucengera ibice byibyuma byashongeshejwe muri zinc zashongeshejwe hafi 500 ℃ kugirango uhuze urwego rwa zinc hejuru yibice byibyuma, bityo ugere ku ntego yo gukumira ruswa.Igikoresho gishyushye gishyushye: gutembera neza ibicuruzwa - gukaraba amazi - kongeramo igisubizo gifasha - gukama - kumanika isahani - gukonjesha - kuvura - gusukura - guswera - kurangiza gushiramo amazi ashyushye 1. Gutera ibishishwa bishyushye byatejwe imbere nuburyo bukera bushyushye bwa galvanizing , kandi ifite amateka yimyaka irenga 170 kuva Ubufaransa bwashyira ingufu za dip galvanizing mu nganda mu 1836. Mu myaka mirongo itatu ishize, hamwe n’iterambere ryihuse ry’ibyuma bikonje bikonje, inganda zishyushye zateye imbere ku rugero runini.
Amashanyarazi ashyushye ashyushye, azwi kandi nka hot dip galvanizing, nuburyo bwo kubona icyuma gikozwe mubyuma mubyibitse muri zinc yashongeshejwe.Hamwe niterambere ryihuse ryogukwirakwiza amashanyarazi menshi, ubwikorezi, n’itumanaho, ibisabwa mu kurinda ibice byibyuma biragenda byiyongera, kandi n’ibikenerwa byo gushyushya ibishishwa nabyo biriyongera.

Imikorere yo gukingira
Mubisanzwe, ubunini bwurwego rwa galvanised ni 5 ~ 15 μ m.Igishyushye gishyushye gisanzwe ni kuri 35 μ Hejuru ya m, ndetse kugeza kuri 200 μ m。 Gushiramo amazi ashyushye bifite ubushobozi bwo gutwikira, gutwikiriye cyane, kandi nta nteruro ifatika.Birazwi neza ko uburyo bwo guhangana na zinc mu kwangirika kwikirere harimo kurinda imashini no kurinda amashanyarazi.Mugihe ikirere cyangirika cyikirere, ubuso bwurwego rwa zinc bufite ZnO, Zn (OH) 2, hamwe na firime yibanze ya karubone ikingira, ibyo bikaba bigabanya umuvuduko wa zinc.Niba iyi firime ikingira (izwi kandi nka rust yera) yangiritse, izakora firime nshya.Iyo zinc yangiritse cyane kandi ikabangamira substrate yicyuma, zinc itanga uburinzi bwamashanyarazi kuri substrate.Ubushobozi busanzwe bwa zinc ni -0,76V, naho ubushobozi bwa fer ni -0.44V.Iyo zinc nicyuma bigize bateri ya micro, zinc irashonga nka anode, kandi icyuma kirinzwe nka cathode.Ikigaragara ni uko ikirere cyangirika kwangirika kwikirere gishyushye hejuru yicyuma cyibanze kiruta icy'amashanyarazi.
Inzira ya Zinc
Igikorwa cyo gushiraho igipimo gishyushye gishyizwe hamwe ni inzira yo gukora icyuma cya zinc kivanze hagati yicyuma cyuma nicyuma cyiza cya zinc hanze ya Z. Icyuma cya zinc alloy layer gikozwe hejuru yumurimo wakazi mugihe cyo gushiramo amazi ashyushye, aribyo yemerera guhuza neza hagati yicyuma nigice cyiza cya zinc.Inzira irashobora gusobanurwa muburyo bukurikira: Iyo igihangano cyicyuma cyinjijwe mumazi ya zinc yashongeshejwe, zinc na zinc bibanza gukorwa kumurongo α Icyuma (intangiriro yumubiri) gushonga.Iyi ni kristu yakozwe no gushonga atom zinc muburyo bukomeye bwicyuma fatizo.Ibyuma bibiri bya atome byahujwe, kandi gukurura hagati ya atome ni bito.Kubwibyo, iyo zinc igeze kwiyuzuzamo mu gushonga gukomeye, atome ebyiri zibanze za zinc nicyuma zirakwirakwira, hanyuma atome ya zinc ikwirakwira (cyangwa yinjiye) matrike yicyuma yimukira mumatara ya matrix, buhoro buhoro ikora umusemburo hamwe nicyuma , mugihe icyuma na zinc byakwirakwijwe mumazi ya zinc yashongeshejwe nicyuma gikomeye cyane kigizwe na intermetallic compound FeZn13, ikarohama munsi yinkono ishyushye ya galvanizing, ikora sinc zlag.Iyo igicapo cyakuwe mubisubizo bya zinc, hashyizweho urwego rwiza rwa zinc hejuru yubuso, aribwo kristu ya mpandeshatu.Ibyuma byayo ntabwo birenze 0.003%.
Itandukaniro rya tekiniki
Kurwanya ruswa ya galvanizasi ishyushye irarenze cyane iy'imbeho ikonje (izwi kandi nka galvanisation).Amashanyarazi ashyushye ntazabora mumyaka mike, mugihe ubukonje bukonje buzabora mumezi atatu.
Inzira ya electrogalvanizing ikoreshwa mukurinda ibyuma kwangirika.Ati: “Hazaba hari icyuma cyiza cyo gukingira ku mpande no hejuru y’ibicuruzwa, byongera igice cyiza mu bikorwa.Muri iki gihe, ibigo bikomeye bigenda bisabwa cyane ku bice by’ibicuruzwa n’ikoranabuhanga, bityo rero ni ngombwa kuvugurura ikoranabuhanga muri iki cyiciro. ”