Hauv kev kho kom zoo nkauj thiab kev tsim khoom lag luam, cov xim txhuas coils tau dhau los ua lwm txoj hauv kev nyiam dua li cov ntaub ntawv ib txwm muaj vim lawv cov kev ua tau zoo heev thiab ntau yam duab. Hom coil no, ua los ntawm txhuas alloy thiab kho nrog cov xim thiab txheej saum npoo, khaws cia cov txiaj ntsig ntawm txhuas.—sib dua thiab tiv taus corrosion—thaum tseem muaj kev zoo nkauj thiab kev ua haujlwm zoo los ntawm kev ua tiav, ua rau nws siv dav hauv ntau yam lag luam.
Cov ntaub ntawv tseem ceeb rau cov xim txhuas coils yog 1-series, 3-series, thiab 5-series txhuas alloys. Qhov sib txawv ntawm cov yam ntxwv ntawm cov series sib txawv ntawm cov ntaub ntawv tseem ceeb cuam tshuam ncaj qha rau cov xwm txheej siv tau:
1-series txhuas ntshiab (feem ntau 1060): Cov txheej txheem tsim khoom yooj yim, tus nqi qis dua, tab sis cov khoom siv yog mos, tsim rau cov xwm txheej dav dav nrog cov kev xav tau qis zog (xws li cov yeeb nkab rwb thaiv tsev, cov ntawv tshaj tawm), muab cov nqi tsim nyog tshaj plaws.
3-series txhuas-manganese alloys (feem ntau yog 3003/3004): 3003 muaj 1.0-1.5% manganese, muab kev tiv thaiv xeb zoo. Nws qhov nyuaj thiab lub zog tensile zoo dua li 1-series alloys, ua rau nws yog cov khoom siv hauv paus feem ntau siv. 3004 muaj ntxiv 0.8-1.3% magnesium (tseem hu ua txhuas-magnesium-manganese alloy), ua rau muaj zog dua thiab tsim nyog rau kev tsim cov ru tsev nrog cov qauv siab xav tau. Nws tus nqi siab dua me ntsis dua 3003.
5-series txhuas-magnesium alloys (feem ntau 5052): Muaj 3-5% magnesium, cov alloys no muaj qhov ceev tsawg, lub zog tensile siab, thiab sib dua. Lawv kim dua thiab qee zaum siv rau hauv kev tsim cov xim zoo nkauj txhuas kauj, thawj zaug siv feem ntau hauv kev lag luam aerospace.
Kev txheej yog "lub hauv paus tseem ceeb" ntawm cov xim txhuas coils. Cov qauv txheej sib txawv thiab cov txheej txheem txiav txim siab cov xim ntawm cov khoom, kev tiv thaiv huab cua, thiab cov yam ntxwv ua haujlwm. Tam sim no, cov txheej txheem txheej txheem yog "ob txheej txheej thiab ob lub ci," nrog rau qee cov khoom lag luam siab siv "peb txheej txheej thiab peb lub ci." Cov qauv tshwj xeeb muaj peb txheej los ntawm sab hauv mus rau sab nraud: Txheej ua ntej kho: "Teeb meem tiv thaiv hauv qab." Ib zaj duab xis oxide ntom ntom, kwv yees li 5-10 nm tuab, yog tsim rau ntawm qhov chaw txhuas substrate los ntawm chromating lossis chromium-free passivation. Qhov no ua rau kom muaj kev sib txuas ntawm cov substrate thiab cov txheej, tiv thaiv cov txheej tev tawm, thiab txhim kho kev tiv thaiv xeb tag nrho, tso lub hauv paus rau cov txheej tom ntej.
Txheej Primer: "Txuas Nruab Nrab thiab Txheej Tiv Thaiv." Epoxy lossis polyester resin siv ua primer, kwv yees li 5-10μm tuab. Nws lub luag haujlwm tseem ceeb yog txhawm rau txhim kho kev sib txuas thiab thaiv cov dej noo sab nraud thiab cov pa oxygen kom tsis txhob kov cov substrate, txhim kho kev tiv thaiv xeb. Cov xim primer tuaj yeem hloov kho raws li qhov yuav tsum tau ua kom tiav cov xim kawg.
Txheej Sab Saum Toj: "Txheej Sab Hauv Zoo Nkauj thiab Ua Haujlwm Tau Zoo." Ntau hom txheej sab saud raug xaiv raws li qhov yuav tsum tau ua ntawm daim ntawv thov, kwv yees li 15-25μm tuab. Cov hom txheej sab saum toj feem ntau muaj xws li: Xim Fluorocarbon (PVDF): "Tus Vaj Ntxwv ntawm Kev Ruaj Ntseg Sab Nraum Zoov." Ua los ntawm polyvinylidene fluoride resin, nws muaj kev tiv thaiv UV zoo heev thiab tiv thaiv kev laus. Nyob rau hauv qhov kub ntawm -40℃mus txog 150℃, cov xim tsis yooj yim ploj thiab lub txheej tsis yooj yim tawg. Nws kuj muaj cov khoom ntxuav nws tus kheej zoo; dej nag tuaj yeem tshem tawm cov hmoov av ntawm qhov chaw yooj yim, ua rau nws tsim nyog rau kev siv mus sij hawm ntev xws li kev tsim kho sab nraud thiab phab ntsa sab nraum zoov. Lub neej ntawm lub txheej tuaj yeem ncav cuag ntau tshaj 20 xyoo.
Xim Polyester (PE): "Kev xaiv uas pheej yig." Tus nqi qis dua 40% -50% piv rau xim fluorocarbon. Txawm hais tias nws txoj kev ua haujlwm tiv thaiv kev laus tsis zoo li xim fluorocarbon, nws tseem tuaj yeem lav lub neej ua haujlwm ntawm 10-15 xyoo hauv thaj chaw tsis muaj huab cua hnyav (xws li Central thiab Southern China). Nws kuj muaj ntau yam xim, suav nrog kev ua tiav matte, high-gloss, thiab metallic finishes, tsim rau sab nraud ntawm lub Hoobkas, cov khoom siv hluav taws xob, thiab cov qab nthab sab hauv.
Xim polyester uas hloov kho los ntawm silicone (SMP): "Kev xaiv ua tau zoo sib npaug." Kev sib xyaw ua ke ntawm tus nqi tsim nyog ntawm cov xim polyester nrog rau kev tiv thaiv huab cua ntawm cov xim fluorocarbon, nws muaj kev tiv thaiv UV zoo dua piv rau cov xim polyester ib txwm muaj, muaj lub neej ntev txog 12-18 xyoo, thiab pheej yig dua li cov xim fluorocarbon. Qhov no ua rau nws tsim nyog rau cov haujlwm uas muaj qee yam kev tiv thaiv huab cua tab sis cov peev nyiaj tsawg, xws li cov eaves ntawm cov chaw lag luam thiab cov chaw nres tsheb roj.
Nrog kev nce qib tas mus li hauv cov thev naus laus zis khoom siv, cov kauj txhuas xim yuav tsim kom muaj kev phooj ywg ib puag ncig zoo dua, muaj ntau yam kev ua haujlwm, thiab muaj kev kho kom haum rau tus kheej ntau dua. Ntawm ib sab tes, cov txheej txheem ib puag ncig zoo (xws li cov txheej txheem passivation tsis muaj chromium thiab cov xim dej) yuav maj mam hloov cov txheej txheem ib txwm muaj, txo qhov cuam tshuam rau ib puag ncig. Ntawm qhov tod tes, cov kauj txhuas xim nrog cov haujlwm tshwj xeeb, xws li cov tshuaj tua kab mob, cov tshuaj tua hluav taws, thiab cov txheej txheem kho tus kheej, yuav txuas ntxiv mus, ua tau raws li qhov xav tau ntawm cov xwm txheej tshwj xeeb ntau dua. Tib lub sijhawm, cov kev pabcuam kho kom haum tus kheej yuav dhau los ua ntau dua, tso cai rau cov xim thiab cov qauv kho raws li cov neeg siv xav tau, nthuav dav ntxiv rau kev siv cov kauj txhuas xim.
Lub sijhawm tshaj tawm: Tsib Hlis-29-2026
