Thaum lub sij hawm siv, steel qhov chaw muaj feem xyuam rau electrochemical corrosion thiab tshuaj corrosion vim muaj kev cuam tshuam ntawm qhov chaw ua hauj lwm. Nws yog ib qho ntawm cov ntawv thov kev lag luam los txhim kho cov khoom saum npoo ntawm cov khoom ua haujlwm los ntawm kev kho cov thev naus laus zis thiab txhim kho cov khoom tiv thaiv corrosion ntawm workpieces. Qhov teeb meem no qhia txog ob lub thev naus laus zis saum npoo av nrog cov khoom zoo tiv thaiv corrosion: Dacromet nto kho tshuab

Dacromet nto kho tshuab yog ib qho kev tiv thaiv corrosion txheej tshuab, feem ntau yog siv los tiv thaiv nto ntawm cov khoom hlau. Nws siv txoj kev electroless plating kom tusyees npog cov hlau nto nrog ib txheej ntawm inorganic txheej nrog anti-corrosion zog. Qhov feem ntau ua kub yog nyob ib ncig ntawm 300 ° C. Cov txheej no yog tsim los ntawm ultrafine flaky zinc, aluminium thiab chromium, uas tuaj yeem txhim kho corrosion tsis kam ntawm cov khoom hlau thiab ua kom lawv lub neej ua haujlwm ntev. Cov txheej txheem Dacromet tuaj yeem tsim cov zaj duab xis tuab ntawm 4 ~ 8 μm ntawm qhov chaw ua haujlwm. Vim yog txheej txheej txheej ntawm flake zinc thiab txhuas, nws tiv thaiv corrosive media xws li dej thiab oxygen los ntawm kev sib cuag cov hlau. Nyob rau tib lub sijhawm, thaum lub sijhawm ua haujlwm Dacromet, chromic acid chemically reacts nrog zinc, aluminium hmoov thiab lub hauv paus hlau los ua ib tug tuab passivation zaj duab xis, uas muaj corrosion kuj zoo.

Feem ntau, Dacromet deg kho tshuab yog ib hom kev kho hlau nto. Dacromet technology yog siv los tiv thaiv corrosion, tshwj xeeb tshaj yog rau cov ntsia hlau thiab fasteners. Nws yog dav siv los txhim kho hardness thiab durability ntawm cov khoom hlau. Abrasiveness thiab corrosion kuj. Rau workpieces nrog ob qho tib si hardness thiab anti-corrosion yuav tsum tau, Crow technology yog siv ntau dua. Thaum xaiv cov cuab yeej kho kom haum rau saum npoo, nws yuav tsum tau xaiv raws li cov ntawv thov tshwj xeeb.

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