Vim tias muaj lub zog zoo tshaj plaws-rau-qhov hnyav piv thiab corrosion tsis kam, titanium alloys tau dav siv nyob rau hauv aerospace, khoom siv hluav taws xob thiab lwm cov khoom siv. Txawm li cas los xij, nws yooj yim los tsim cov yeeb yaj kiab passivation zaj duab xis nyob rau saum npoo, uas pheej txwv qhov kev ruaj ntseg ntawm cov txheej txheem plating. Hauv tsab xov xwm no, txoj kev tseem tam sim no rau kev txhim kho lub zog ntawm titanium alloy matoy matrox thiab txheej yog kev tshuaj xyuas cov kev coj ua rau kev coj ua engineering.
Pretricatment thiab ntxiv dag zog rau thev naus laus zis
Kev hloov kho sab saum toj hloov kho
Cov neeg kho tshuab sandblasting tuaj yeem ua tiav cov nyhuv ntawm passivation ntawm passive zaj duab xis stripping thiab cov kev sib tw ntawm qhov chaw siab ntawm {1} pah emery. Cov ntaub ntawv sim qhia tau tias kev sib khi ua kom muaj zog ntawm TA2 ntshiab titanium vwj tom qab cov blasting tom qab cov xuab zeb blasting tuaj yeem ncav cuag 3.2 zaug ntawm qhov tsis kho cov hnoos qeev. Txawm li cas los xij, nws yuav tsum tau sau tseg tias lub siab-zog titanium alloy> {{{{{{{} yog ib qho tsim nyog los tswj cov sandblasting siab <0.4MPA.
Hydrogenated Zaj Duab Xis: Siv HCL (500ML / L) + L) + Kho Kom Ua Kom Zoo ntawm 200nm Tihtransit Txheej. XPS Kev Tshawb Fawb pom tias txheej tsim ti-ti2Eutectic qauv nrog lub substrate, thiab cov zog khi zog nce rau 28mpa.
Fluorinated membrane hloov kho: NACR2O7(250g / l) + hf (20ml / l) sib tov tau kho nyob rau hauv chav tsev kub txog 30s los tsim tif3/ Tio₂composite membrane. SEM SEMASTHREAS QHIA TAM SIM NO MAJSEMS muaj tus qauv honeycomb, uas tuaj yeem txhim kho cov nyhuv anchoring ntawm cov txheej.
Kev Hloov Hlau Hloov Txheej Kev Tso Tawm
- Gradient Zinc Leaching Process
Thib ob Zinc Plating tau saws los: thawj (zso₄480g / l, hf 120m / l, 25s) → (25s) → Thib Ob Kev xyaum ntawm lub Hoobkas hluav taws xob hauv Nanjing tau pom tias kev sib raug zoo ntawm tooj liab txheej tau nce los ntawm 3.5n / mm² rau 15.6n / mm² los ntawm tus txheej txheem no.
- Electroless Nickel plating ua lub hauv paus
Los ntawm Nahsonpo (30G / L) + NISO₄ (25G / L) + complexing tus neeg sawv cev. 2μm Ni-p txheej tau muab tso rau ntawm 85 degree. Lub tshuab ntsuas hluav taws xob tsom tsom qhia tias NI-Ti Intermetallic teb sib txuas tau raug tsim los ntawm txheej thiab lub substrate, thiab lub zog shear tau mus txog 45mpa.
Txhim kho kev kho tshuab thev naus laus zis tom qab plating
1. Lub tshuab nqus cua sov:Nyob rau hauv lub nqus tsev kawm tiav qib 10 ^ -3 pa, 300 tawm kev kho mob me me ntawm 1.5μm, thiab muaj zog nce los ntawm 40%. Nws yog ib qho tsim nyog los them sai sai rau theem hloov ntsuas kub (ntshiab titanium 882 degree) kom tsis txhob matrix theem hloov.
2. Kev siv Annaling tam sim no: Kev siv 20KHz loj heev mem tes, kho rau ntawm 200 degree rau 30min, tuaj yeem txhawb txoj kev diffusion ntawm txheej atoms. Ib daim ntawv thov ntawm ib qho kev tiv thaiv ib qho kev nce qib hauv kev nce hauv lub zog ntawm cov txheej kub ntawm chav kawm 4b rau chav kawm siab ASTM D3359.
Cov Txheej Txheem Xaiv Lub Tswv Yim
1. Pom zoo rau cov txheej txheem hluav taws xob hluav taws xob: tshuaj npib ob leeg-plating + mem tes anformation (loj deformation <{}}. 1%)
2. Haum rau cov txheej txheem qhov chaw: Sandblasting + Hydrogenated zaj duab xis + siab diffusion (30% nqi txo)
3. Cov lus qhia rau cov khoom siv tshwj xeeb ib puag ncig: Flash Nickel plating (corrosion tsis tau nce los ntawm 5 zaug)
Cov kev tshawb nrhiav cov kev tshawb nrhiav tam sim no tsom rau cov txheej txheej atomic Kev xyaum engineering, nws yog qhov tsim nyog los tsim tus kheej txheej txheem txheej txheem raws li Matrix hom (/ titanium alloy), coating ua haujlwm / coj-resistant (hnav-resistant) thiab muaj kev txwv.