Kodi galimoto yamagetsi imatha kuwola ndipo chifukwa chiyani izi zimachitika

Galvanizing ali ndi mlingo wina wa chitetezo - electrochemical. Zinc ndi chitsulo zimapanga gulu la galvanic, ndiko kuti, pokhudzana ndi chinyezi, mphamvu yamagetsi imayamba kuyenda pakati pawo ndipo mmodzi mwa mamembala a awiriwa amayamba kugwa.

Mukasiya chidutswa chachitsulo panja, tsogolo lake lidzakhala lachisoni komanso losapeŵeka: posakhalitsa chitsulocho chidzayamba kuvunda ndikusanduka fumbi. Kuti achedwetse kuyambika kwa dzimbiri ndikuchedwetsa, opanga magalimoto amapita kuzinthu zosiyanasiyana - amaphimba zitsulo za thupi ndi "sangweji" ya mastics, zoyambira, utoto ndi ma varnish.

Njirayi imagwira ntchito malinga ngati zigawo zoteteza zimakhalabe. Koma posakhalitsa, nthambi zamitengo, miyala, nyengo yoipa, mankhwala m'misewu amathyola chitetezo - ndipo madontho ofiira amawonekera pa thupi.

Pofuna kuteteza galimotoyo, makampani ena amagalimoto amaphimba thupi lonse (kapena mbali zake) ndi zinki. Koma ngati kanasonkhezereka galimoto thupi amawola - kenako lemba la nkhaniyo.

Chifukwa chiyani zida zokhala ndi malati zimalimbana ndi dzimbiri kuposa chitsulo chopanda chitsulo

Kuwonongeka ndi machitidwe a zitsulo ndi okosijeni, pomwe oxide yofananira imapangidwa (ngati chitsulo (chitsulo) - FeO₂dzimbiri lodziwika bwino). Zitsulo zina amachita ndi mpweya - aluminium, mkuwa, malata, nthaka. Koma amatchulidwa kuti "osapanga" chifukwa ma oxides omwe ali pamalo awo amapanga filimu yopyapyala, yolimba yomwe mpweya sumalowanso. Choncho, zigawo zamkati zazitsulo zimatetezedwa kuti zisawonongeke.

Pankhani ya chitsulo, zinthu zimasinthidwa - iron oxide imapanga "ma flakes" osasunthika, omwe mpweya umalowa bwino m'malo ozama kwambiri. Izi ndizomwe zimateteza chitsulo ndi zinc: zinc oxide imateteza chitsulo potsekereza mpweya. Kuchuluka kwa chitetezo kumadalira magawo awiri: njira yogwiritsira ntchito ndi makulidwe a chitetezo.

Kuwola kwa thupi

Mlingo wamphamvu kwambiri wachitetezo umaperekedwa ndi kuthira kotentha - kumizidwa kwa thupi lagalimoto mu zinki wosungunuka. Zotsatira zabwino zimawonetsedwa ndi njira ya galvanic (thupi (kapena gawo lake) limatsitsidwa mu electrolyte yomwe ili ndi zinki ndipo mphamvu yamagetsi imadutsa), kufalikira kwa kutentha. Tanthauzo la njira zonsezi ndikuti zinki sizingogwiritsidwa ntchito pamwamba, komanso zimalowera kumtunda wina muzitsulo zokha, zomwe zimawonjezera chitetezo cha zokutira.

Galvanizing ali ndi mlingo wina wa chitetezo - electrochemical. Zinc ndi chitsulo zimapanga gulu la galvanic, ndiko kuti, pokhudzana ndi chinyezi, mphamvu yamagetsi imayamba kuyenda pakati pawo ndipo mmodzi mwa mamembala a awiriwa amayamba kugwa. Zinc ndi chitsulo chogwira ntchito kwambiri kuposa chitsulo, chifukwa chake, ngati kuwonongeka kwa makina (kukanika) pazitsulo zachitsulo, ndi zinc yomwe imayamba kusweka, ndipo chitsulocho chimakhalabe chosakhudzidwa kwa nthawi ndithu.

Pamene kanasonkhezereka thupi dzimbiri

Palibe ukadaulo wangwiro. Kaya thupi lamoto lamalati limawola, yankho ndilosakayikira. Posakhalitsa, dzimbiri zidzagonjetsa ngakhale galimoto yabwino kwambiri yamalata. Ndipo izi zidzachitika pazifukwa ziwiri.

Kuwonongeka kwa nthaka wosanjikiza

Chifukwa chodziwikiratu cha kuyambika kwa dzimbiri muzitsulo zamakina ndi kuwonongeka kwamakina, komwe kumatsegula mwayi wa okosijeni kuchitsulo chosatetezedwa. Choyamba, zinki wosanjikiza adzayamba kusweka, ndiyeno thupi zitsulo. Pachifukwa ichi, eni ambiri amtundu wa magalimoto apamwamba (magalimoto oterowo ali ndi zokutira zapamwamba kwambiri za zinki), ngakhale pambuyo pa ngozi zazing'ono, yesetsani kuchotsa galimotoyo mwamsanga. N'zotheka kukonza thupi lodetsedwa, kupenta ndi varnish malo owonongeka muutumiki wamagalimoto, koma kubwezeretsa umphumphu wa zinki wosanjikiza n'zotheka kokha pakupanga mafakitale.

Zinc oxidation

Filimu yamphamvu ya zinc oxide imateteza chitsulo kuti zisalowemo mpweya. Komabe, zinki amawonongekabe chifukwa cha chinyezi, mankhwala a pamsewu, ndi kusintha kwa kutentha. Izi zikutanthauza kuti zigawo za oxide zimawonongeka pang'onopang'ono, ndipo zinc yoyera, yomwe imachita ndi mpweya, imapanga zigawo zatsopano za filimu yoteteza oxide.

Dzimbiri pagalimoto

Zikuwonekeratu kuti njirayi ikhoza kupitilira kwa nthawi yayitali, koma osati kosatha. M'matawuni, chiwonongeko cha zokutira za zinki ndi 6-10 microns pachaka. Izi zikufotokozera nthawi ya chitsimikiziro chotsutsana ndi dzimbiri chomwe chimakhazikitsidwa ndi opanga: makulidwe achitetezo amagawidwa ndi kuchuluka kwa kutha kwake. Pafupifupi, zimakhala zaka 10-15.

Werenganinso: Momwe mungachotsere bowa m'thupi la galimoto ya VAZ 2108-2115 ndi manja anu

Zoyenera kuchita ngati malata avunda

Yankho la funso ngati kanasonkhezereka galimoto galimoto kuwola waperekedwa kale pamwambapa. Ngati dzimbiri layamba kale kulanda thupi la galimoto, musazengereze kuyendera galimoto yabwino. Njira zowonongeka zimatha kuchepetsedwa ngati foci yake yasamalidwa bwino.

Corrosion inhibitors, kupopera ufa wa zosakaniza zomwe zili ndi zinc, zoyambira zapadera ndi utoto zimagwiritsidwa ntchito. Ndi nthawi yake kuyamba ntchito yokonza, mukhoza osachepera kupulumutsa nthawi chitsimikizo galimoto.

Ndipo kwa ntchito yopanda mavuto kunja kwa nthawiyi, ndikofunikira kuteteza malo omwe ali pachiwopsezo (pansi, sill, arches, etc.) ndi anticorrosive agents, kuyang'anira ukhondo wagalimoto (dothi limathandizira kuwonongeka kwa zokutira zoteteza), ndi kuchotsa tchipisi tating'onoting'ono ndi zokopa munthawi yake.

GALIMOTO SIIDZACHITIRASO MUKACHITA IZI