Phetisetso ea Mocheso ea Mocheso oa Aluminizing Coating nakong ea ho Tiisa

Ho roala ha aluminizing ho chesa ke e 'ngoe ea mekhoa e sebetsang ka ho fetisisa ea ho sireletsa holim'a litšepe' me butle-butle e ntse e tsebahala. Le hoja lebelo la ho hula ke e 'ngoe ea litekanyo tsa bohlokoa ka ho fetisisa tsa ho laola botenya ba ho roala ha lihlahisoa tsa aluminizing, leha ho le joalo, ho na le likhatiso tse fokolang tse mabapi le mokhoa oa lipalo oa ho hula lebelo nakong ea ts'ebetso ea ho chesa. E le ho hlalosa kamano pakeng tsa lebelo la ho hula, botenya ba ho roala le nako ea ho tiisa, molao-motheo oa ho fetisa mocheso le mocheso nakong ea mokhoa oa aluminizing o batlisisoa pampiring ena. Mehlala ea lipalo e thehiloe ho Navier-Stokes equation le tlhahlobo ea phetiso ea mocheso. Liteko tse sebelisang lisebelisoa tse entsoeng ka botsona li etsoa ho netefatsa mehlala ea lipalo. Ka ho khetheha, aluminium melt e hloekisoa ho 730 ℃. Mokhoa oa Cook-Norteman o sebelisoa bakeng sa ho lokisa lipoleiti tsa tšepe tsa Q235.

Thempereichara ea hot dip aluminizing e behiloe ho 690 le ℃ nako ea ho qoelisa e behiloe ho 3 min. Enjene ea hona joale e otlolohileng e nang le phapang ea lebelo e se nang mohato e sebelisoa ho lokisa lebelo la ho hula. Phetoho ea mocheso oa ho roala e ngotsoe ke thermometer ea infrared, 'me botenya ba ho roala bo lekanngoa ka ho hlahloba setšoantšo. Liphetho tsa liteko tse netefalitsoeng li bonts'a hore botenya ba ho roala bo lekana le motso oa lisekoere oa lebelo la ho hula bakeng sa poleiti ea tšepe ea Q235, le hore ho na le kamano e haufi pakeng tsa botenya ba ho roala le nako ea ho tiisa ha lebelo la ho hula le le ka tlase ho 0.11 m/s. Polelo ea mohlala e reriloeng e lumellana hantle le litebello tsa liteko tsa botenya ba ho roala.

Kenyelletso ea 1

Litšepe tse chesang tsa dip aluminizing li na le khanyetso e phahameng ea kutu le thepa ea mochini e lakatsehang ha e bapisoa le tšepe e futhumatsang ea dip galvanizing. Molao-motheo oa hot dip aluminizing ke hore lipoleiti tsa tšepe tse entsoeng esale pele li kenngoa ka har'a metsoako ea aluminium e qhibilihisitsoeng ka mocheso o itseng ka nako e loketseng. Liathomo tsa Aluminium lia ata 'me li sebetsana le liathomo tsa Iron ho etsa motsoako oa motsoako oa Fe-Al le motsoako oa aluminium o nang le matla a matla a ho kopanya le matrix ho khotsofatsa tlhoko ea ho sireletsa le ho matlafatsa bokaholimo. Ka bokhutšoanyane, thepa ea tšepe ea hot dip ke mofuta oa thepa e kopantsoeng e nang le thepa e felletseng le ea theko e tlase. Hajoale, mekhoa e joalo ka Sendzimir, Non-oxidizing reduction, Non-oxidizing le Cook-Norteman hangata e sebelisoa bakeng sa hot dip aluminizing, eo ka eona ho ka hlahisoang lihlahisoa tse kholo ka lebaka la ts'ebetso ea bona e phahameng ea tlhahiso, boleng bo tsitsitseng ba lihlahisoa le tse fokolang. tshilafatso. Har'a mekhoa e mene ea theknoloji, Sendzimir, Non-oxidizing reduction le Non-oxidizing e khetholloa ka mekhoa e rarahaneng, thepa e theko e boima le litšenyehelo tse phahameng. Matsatsing ana, mokhoa oa Cook-Noteman o se o sebelisoa haholo ka lebaka la melemo ea lits'ebetso tse feto-fetohang, litšenyehelo tse tlase le botsoalle ba tikoloho.

Bakeng sa ts'ebetso e chesang ea aluminizing ea dip, botenya ba ho roala ke mokhoa oa bohlokoa oa ho lekola boleng ba ho roala le ho phetha karolo ea bohlokoa ho khethollang thepa ea ho roala. Mokhoa oa ho laola botenya ba ho roala nakong ea ts'ebetso ea dip e chesang e nkoa e le ea bohlokoa ho netefatsa boleng bo botle ba ho roala. Joalokaha re se re tseba, ho na le kamano e haufi-ufi ea ho kopanya pakeng tsa botenya ba ho roala, ho hula lebelo le nako ea ho tiisa. Ka hona, e le ho laola mokhoa oa ho chesa o chesang le ho ntlafatsa boleng ba ho roala, ho hlokahala hore u hahe mohlala oa lipalo o ka hlalosang kamano ena. Ka pampiri ena, mohlala oa lipalo oa botenya ba ho roala le lebelo la ho hula o tsoa ho equation ea Navier-Stokes. Ho fetisoa ha mocheso nakong ea ho tiisa liphahlo ho hlahlojoa, 'me kamano ea botenya ba ho roala le nako ea ho tiisa e thehiloe. Liteko tsa hot dip aluminizing lipoleiti tsa tšepe tsa Q235 tse thehiloeng ho mokhoa oa Cook-Norteman li etsoa ka thepa e iketselitseng. Mocheso oa 'nete le ho roala ha botenya ho lekanyetsoa ho latela. Litlhahiso tsa khopolo-taba li bontšoa le ho tiisoa ke liteko.

2 Mohlala oa Lipalo

2.2 Ho fetisoa ha mocheso nakong ea ho tiisa ho roala Kaha seaparo sa aluminium se tšesaane haholo, se ka nkoa e le pa.rallero le phallang hodima bokahodimo bo bataletseng ba dikotoana tse patehileng. Ebe e ka hlahlojoa ho tloha ka tataiso ea x. Litšoantšo tsa schematic tsa coating-substrate li hlahisoa setšoantšong sa 2 'me kabo ea mocheso e bontšoa setšoantšong sa 3.
Bakeng sa lintlha tse felletseng, ka kopo ikopanye le rona.