Chimango cha mlatho chopangidwa ndi galvani:
Mlatho wa Galvanized, womwe umadziwikanso kuti mlatho wamagetsi wopangidwa ndi galvanized; Kawirikawiri umatchedwa mlatho wa galvanized womwe ndi mlatho wopangidwa ndi galvanized wotentha, kwenikweni, ndi wolakwika, monga chitoliro chopangidwa ndi galvanized, mlatho wa galvanized umagawidwa m'mitundu iwiri, yomwe ndi, wopangidwa ndi galvanized wozizira (wamagetsi wopangidwa ndi galvanized) ndi wopangidwa ndi galvanized wotentha (wopangidwa ndi galvanized wopangidwa ndi galvanized wotentha);
Chitsulo ndi chitsulo zimazizira mosavuta mumlengalenga, m'madzi kapena m'nthaka, kapena ngakhale kuwonongeka kwathunthu. Kutayika kwa chitsulo chaka chilichonse komwe kumachitika chifukwa cha dzimbiri kumabweretsa pafupifupi 1/10 ya zotulutsa zonse zachitsulo. Kumbali ina, kuti zinthu ndi zigawo zachitsulo zikhale ndi ntchito yapadera pamwamba, zimapangitsa kuti pamwamba pake pakhale mawonekedwe okongola nthawi imodzi, kotero nthawi zambiri zimachizidwa ngati magetsi.
1. Mfundo:
Popeza zinc siisintha mosavuta mumlengalenga wouma, komanso mumlengalenga wonyowa, pamwamba pake pamatha kupanga filimu yolimba kwambiri ya zinc carbonate, filimuyi imatha kuteteza mkati mwa mkati ku dzimbiri. Ndipo pamene chophimbacho chawonongeka pazifukwa zina ndipo maziko achitsulo sali aakulu kwambiri, zinc ndi matrix yachitsulo zimapanga batri yaying'ono, kotero kuti matrix yachitsulo imakhala cathode ndipo imatetezedwa.
2. Makhalidwe Abwino:
1) Chophimba cha zinki ndi chokhuthala, makristalo ndi abwino, ofanana komanso opanda ma pores, ndipo kukana dzimbiri ndi kwabwino;
2) Zinc wosanjikiza womwe umapezeka pogwiritsa ntchito electroplating ndi woyera ndipo umawononga pang'onopang'ono mu asidi ndi alkali fog, zomwe zingateteze bwino matrix yachitsulo;
3) Chophimba cha zinki chopangidwa ndi chromic acid passivation choyera, chamtundu, chobiriwira chankhondo, chokongola, chili ndi zokongoletsera zinazake;
4) Popeza kuti chivundikiro cha zinc chili ndi ductility yabwino, chingakhale chozizira, chozungulira, chopindika ndi zina popanda kuwononga chivundikirocho.
3. Kuchuluka kwa ntchito:
Ndi chitukuko cha sayansi ndi ukadaulo, makampani opanga ma electroplating amakhudza madera ambiri. Pakadali pano, kugwiritsa ntchito ma galvanizing kwakhala kukuchitika m'madipatimenti opanga ndi kufufuza chuma cha dziko. Mwachitsanzo, kupanga makina, zamagetsi, zida zolondola, makampani opanga mankhwala, makampani opanga kuwala, mayendedwe, zida, ndege, mphamvu ya atomiki, ndi zina zotero, ndizofunikira kwambiri pa chuma cha dziko.
Mlatho wopangidwa ndi magalasi otentha(mlatho wa zinki wotentha)
1, kufotokozera kwa zinki yotentha:
Zinc yotentha ndi imodzi mwa njira zabwino kwambiri zophikira zitsulo. Ili mu mkhalidwe wamadzimadzi wa zinc, pambuyo pa ntchito yovuta kwambiri ya thupi ndi mankhwala, osati kokha pa zinc yolimba kwambiri yachitsulo, komanso imapanga zinc-iron alloy layer. Njira yophikirayi sikuti imangokhala ndi makhalidwe a kukana dzimbiri kwa galvanizing, komanso ili ndi zinc-iron alloy layer. Ilinso ndi kukana dzimbiri kwamphamvu komwe sikungafanane ndi galvanizing. Chifukwa chake, njira yophikirayi ndi yoyenera kwambiri mitundu yonse ya asidi wamphamvu, chifunga cha alkali ndi malo ena amphamvu a dzimbiri.
2. Mfundo:
Hot dip zinc layer imapangidwa m'magawo atatu pansi pa madzi otentha kwambiri:
1) Pamwamba pa chitsulo chimasungunuka ndi yankho la zinc kuti apange gawo la zinc-iron alloy;
2) Ma ayoni a zinc omwe ali mu alloy layer amafalikira kwambiri ku matrix kuti apange zinc-iron miscible layer;
3) Pamwamba pa gawo la alloy pali gawo la zinc.
3. Makhalidwe a ntchito:
(1) Ndi zinc yokhuthala yolimba yophimba pamwamba pa chitsulo, imatha kupewa matrix yachitsulo ndi njira iliyonse yothira dzimbiri, kuteteza matrix yachitsulo ku dzimbiri. Mu mlengalenga wonse, pamwamba pa zinc wosanjikiza amapanga pamwamba pa zinc oxide wosanjikiza woonda kwambiri komanso wokhuthala, zimakhala zovuta kusungunuka m'madzi, kotero imagwira ntchito yoteteza pa matrix yachitsulo. Ngati zinc oxide ndi zigawo zina mumlengalenga zipanga mchere wosasungunuka wa zinc, chitetezo cha dzimbiri ndi chabwino kwambiri.
(2) Pali chitsulo ndi zinki, chopapatiza, chomwe chili mumlengalenga wa Marine salt spray ndi mumlengalenga wa mafakitale, chomwe chimakhala ndi mphamvu yapadera yolimbana ndi dzimbiri;
(3) Chifukwa cha kuphatikizana kolimba, zinc-iron zimatha kusakanikirana, komanso zimakhala zolimba kwambiri pakutha;
(4) Popeza zinc ili ndi ductility yabwino, gawo lake la alloy ndi maziko achitsulo zimamangiriridwa bwino, kotero zigawo zotentha zimatha kukhala zozizira, zozungulira, zokoka, zopindika ndi zina popanda kuwononga chophimbacho;
(5) Pambuyo poika ma galvanizing m'zigawo zachitsulo, zimakhala zofanana ndi njira imodzi yopangira annealing, yomwe ingathandize bwino kukonza bwino mawonekedwe a matrix achitsulo, kuthetsa kupsinjika panthawi yopanga ndi kuwotcherera zigawo zachitsulo, komanso imathandizira kutembenuza zigawo zachitsulo.
(6) Pamwamba pa zowonjezera pambuyo pothira galvanizing ndi kowala komanso kokongola.
(7) Zinc wosanjikiza woyera ndiye wosanjikiza wapulasitiki kwambiri wa hot dip galvanized layer, makhalidwe ake ali pafupi ndi zinc woyera, ductility, kotero ndi wosinthasintha.
4. Kuchuluka kwa ntchito:
Kugwiritsa ntchito ma galvanizing otenthetsera madzi kumakula ndi chitukuko cha mafakitale ndi ulimi. Chifukwa chake, zinthu zotenthetsera madzi zotenthetsera madzi m'makampani (monga zida zamakemikolo, kukonza mafuta, kufufuza za m'nyanja, kapangidwe ka zitsulo, kutumiza mphamvu, kumanga zombo, ndi zina zotero), ulimi (monga kuthirira, kutentha), zomangamanga (monga: kutumiza madzi ndi gasi, chivundikiro cha waya, kukonza ma scaffolding, nyumba, milatho, mayendedwe, ndi zina zotero, zakhala zikugwiritsidwa ntchito kwambiri m'zaka zaposachedwa. Zinthu zotenthetsera madzi zotenthetsera madzi zimagwiritsidwa ntchito kwambiri chifukwa cha mawonekedwe awo okongola komanso kukana dzimbiri.
Chachiwiri, kusiyana pakati pamlatho wopoperandimlatho wagalasi
Mlatho wopopera ndi mlatho wopaka galvanized zimasiyana pang'ono pakupanga, kufotokozera, mitundu, mawonekedwe ndi kapangidwe ka mlatho ndi zofanana.
Kusiyana kwa njira pakati pa mlatho wopopera ndi mlatho wopaka galvanized:
Choyambirira,mlatho wagalasiNdipo mlatho wopopera wa pulasitiki ndi wa mlatho wachitsulo, mlatho wopopera umapangidwa ndi mbale yachitsulo yopopera, mbale yopopera ndikukhulupirira kuti palibe chifukwa chofotokozera zambiri, ndipo mlatho wopopera wa pulasitiki umagwiritsidwa ntchito pokonza wosanjikiza wa electrostatic spraying wosanjikiza pamwamba pa mlatho wopopera, kotero umatchedwa mlatho wopopera wa pulasitiki, kumvetsetsa kosavuta ndi kwakuti mlatho wopopera wa pulasitiki ndi mtundu wosintha wa mlatho wopopera, kukana dzimbiri kumakhala kolimba.
Ngati mukufuna kudziwa zambiri za izi, mutha kudina ngodya yakumanja ya pansi, tidzakulumikizani mwachangu momwe mungathere.
Nthawi yotumizira: Marichi-29-2023