Ibyiza hamwe nisesengura ryagereranijwe ryuburyo bukuru bwo kuvura Ubuso bwibanze 

I. Inzira Zingenzi zo Kuvura Ubuso Kubifata hamwe nibyiza byabo

1. Electrogalvanizing (Harimo Ubururu-Bwera Zinc na Zinc y'amabara)

Electrogalvanizing (ubukonje bwa galvanizing) ninzira ishyira igipande kimwe cya zinc kumurongo wihuta ukoresheje electrolysis, iboneka muburyo nka zinc yubururu-bwera na zinc y'amabara. Nuburyo bukoreshwa cyane muburyo buhendutse bwo kuvura kubucuruzi. Ibyiza byingenzi byingenzi birimo tekinoroji ikuze, igiciro gito, igenzurwa nuburinganire (5-15 mm), hejuru yubuso burangije, hamwe nuburyo bwinshi bwo guhitamo amabara, bigatuma bikwiranye nibigaragara mumucyo murugo urwanya ruswa. Kubintu bito-bifatanye bifatanye (urugero, munsi ya M8), electrogalvanizing ntabwo ihagarika insinga cyangwa uduce, itanga imikorere myiza yinteko, kuboneka kwisoko ryinshi cyane, hamwe nigihe gito cyo gutunganya.

Twabibutsa ko electrogalvanizing ifite ibyago bimwe byo kwinjiza hydrogène kandi ikoreshwa gusa kubifata bifite ubukana munsi ya HRC38. Byongeye kandi, imikorere yayo yo kurwanya ruswa iringaniye. Ikizamini cyo kutagira aho kibogamiye (NSS) igihe cyamashanyarazi gisanzwe ni amasaha 24-96, gishobora kongerwa kugeza kumasaha arenga 200 nyuma yo kuvurwa hamwe na kashe idasanzwe, ariko ikiguzi kiziyongera inshuro 5-8 ukurikije.

2. Igikoresho kitari amashanyarazi ya Zinc Flake (Dacromet / DACROMET)

Dacromet ni ubwoko bushya bwo gutwikira bugizwe ahanini nifu ya zinc, ifu ya aluminium, na acide chromic, ikozwe muburyo bwo guteka no gukiza. Nibikorwa byatoranijwe kumwanya muremure wo kurwanya ruswa mubidukikije bikaze, hamwe nibyiza byingenzi byingenzi: nta ngaruka zo kwinjiza hydrogène, bigatuma bikwiranye nimbaraga zikomeye; Kurwanya ruswa nziza, hamwe nigeragezwa ryumunyu utagira aho ubogamiye (NSS) kumara amasaha 500-800 kumurongo umwe namasaha 1500-2000 kumurongo wikubye kabiri, hamwe nubushyuhe bwiza (igihe kirekire ≤250 ℃); Igenzura risobanutse neza kugenzura, ryemeza imbaraga zifatika guhuza amasano akomeye kandi birakwiriye kuri ssenariyo hamwe nibisabwa cyane kugirango uburinganire bwuzuye.

Ibibi byayo ni ukudashobora guhuza n'imashini ntoya iri munsi ya M8 cyangwa imashini yimbere yimbere, kuko igifuniko gishobora kugira ingaruka kubiterane; urwego ruciriritse, isoko rusange iboneka, hamwe na Dacromet gakondo irimo chromium ya hexavalent, bityo kubahiriza ibidukikije bigomba kwitabwaho.

3. Ashyushye-Dip Galvanizing

Gushyushya ibishishwa ni inzira ngenderwaho yerekana ibintu biremereye byo kurwanya ruswa, bikora igifuniko cyo kwibiza ibyuma muri zinc yashonze kuri 440-460 ℃. Ibyiza byingenzi nibyingenzi (50-100μm), gukomera cyane, hamwe no kurwanya ibyangiritse. Nubwo ibishushanyo biboneka hejuru, birashobora gukomeza kurwanya ruswa binyuze mu gitambo cya anode yigitambo cya zinc, hamwe na NSS igihe cyamasaha 300-1000 nyuma ya passivation. Ubu buryo bugaragaza igiciro giciriritse, isoko ryiza kuboneka, hamwe na hydrogène nkeya yo kwanduza imbaraga zikomeye, bigatuma ikoreshwa cyane mubice byubatswe hanze.

Imipaka yayo irarangiye neza, ntabwo ikwiranye na sisitemu yo guterana neza; ntoya-ifatanyirijwe hamwe munsi ya M8 ikenera gukanda kabiri nyuma yo kuvurwa, bigira ingaruka nziza; kandi uburyo bwo gutunganya bushobora gutera ubushyuhe bukabije, birabujijwe rero gukoresha ibice 12.9-byiciro cyangwa ibyuma byicyuma.

4. Umuti wa Oxide wirabura (Ubururu)

Ubuvuzi bwa okiside yumukara (ubururu) bugizwe na firime ya tetroxide (Fe₃O₄) ya metero 1-3 mm hejuru yubutaka bwihuse binyuze muri okiside yubushyuhe bwinshi. Ibyiza byingenzi byingenzi ni igiciro gito cyane, cyigihe gito cyo gutunganya, kandi nta ngaruka zigira ku buryo bwihuse bwihuse, bigatuma bikwiranye no gukumira ingese zifatizo zo gukumira ibice bito bito mu nzu idashobora kwangirika. Iyi nzira ntisaba amashanyarazi, nta ngaruka ziterwa na hydrogène, kandi ikora nkuburyo bwubukungu kubice bitagaragaye nkibice byogukwirakwiza imbere mubikoresho byimashini no guhuza ibice byibikoresho.

Imikorere yayo yo kurwanya ruswa niyo ifite intege nke, hamwe nigihe cyo gupima umunyu utagira aho ubogamiye mugihe cyamasaha 4-24 gusa, gishobora kongerwa kugeza kumasaha 48-72 nyuma yo gufunga amavuta, gusa kikaba cyujuje ibyifuzo byibanze byo gukumira ingese, kandi ububengerane bwubutaka buri hasi, nta mutungo wo gushushanya.

II. Kugereranya gutambitse kwimikorere yibikorwa byingenzi

Kubindi bisobanuro byihariye, inama yubuhanga irasabwa.