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1、摘要在快速鎳鍍液的基礎(chǔ)上,通過添加納米SiC粉末和復(fù)合型表面活性劑,在超聲波振蕩作用下,制各了納米復(fù)合鍍液。通過正交試驗法,對影響鍍層性能的鍍液中納米SiC粉末含量、表面活性劑濃度、刷鍍電壓、鍍液初始溫度四個因素進行分析。試驗表明,鍍液中納米粉末含量和刷鍍電壓對復(fù)合鍍層的性能有顯著影響,鍍液中表面活性劑濃度和鍍液初始溫度影響較小。通過均勻試驗法,對影響鍍層顯微硬度的主要因素—鍍液中納米粉末含量和刷鍍電壓進行回歸分析,得到相應(yīng)的數(shù)學(xué)模型。本文還對比了鎳基納米復(fù)合鍍層和普通鎳基鍍層的性能。對比發(fā)現(xiàn):兩種
2、鍍層都與基體結(jié)合良好,滿足使用要求;納米復(fù)合鍍層的顯微硬度和耐磨性能比普通鎳基鍍層相比有較大的提高,顯微硬度提高了62.1%,耐磨性能提高了3倍以上,表明納米粒子對鍍層的強化作用。25個周期的中性鹽霧試驗結(jié)果表明,鎳基納米復(fù)合鍍層比基體和普通鎳基鍍層具有更好的耐腐蝕性。關(guān)鍵詞:電刷鍍;復(fù)合鍍層;納米材料;試驗設(shè)計AbstractThecompositeelectrolytewithnanoparticlesispreparedonthebasisoffastnickelelectrolyteunde
3、rtheultrasonicwavevibrationfunctionbyappendingn-SiCandcompoundsurfactantinthispaper.Fourfactors,thecontentofnanoparticlesintheelectrolyte,thecontentofcompoundsurfactantintheelectrolyte,thebrushplmingvoltage,affectingtheperformanceofcompositecoatingsare
4、optimizedintheorthogonalexperiments.Testresultsshowthatthecontentofnanoparticlesintheelectrolyteandthebrushplatingvoltagehaveremarkableeffectontheperformanceofcompositecoatings,thecontentofcompoundsurfactantintheelectrolyteandthecompositeelectrolyteini
5、tialtemperaturehavelittleeffectontheperformanceofcompositecoatings.Amathematicalmodeoftworemarkablefactorsthateffectontheperformanceofcompositecoatingsisbuiltbynonlinearregressionofdataofuniformdesignexperiment.Theperformanceofcompositecoatingsisalsoco
6、ntrastedwiththefastnickelcoatings.Resultsindicatethatbothofcoatingscombinewithmatrixverywellandsati,,;fyoperation,themicrohardnessandweal"resistanceofnanocompositecoatingsarehigherthanthatoffastnickelcoatings.themicrohardnessofnanocompositecoatingsishi
7、gher62.1%thanthatoffastnickelcoatings.Thewearresistanceofnanocompositecoatingsismorethanthreetimesthanthatoffastnickelcoatings.Alltheseshowthatnanoparticlescanstrengthenthecoatings.25periodneutralsaltspraycorrosiontestshowsthatthecorrosionresistanceofn
8、anocompositecoatingsissuperiortothatofthefastnickelcoatings.Keywords:Brushelectron-plating;compositecoating;nanomaterial;testdesignII第一章緒滄第一章緒論前言隨著現(xiàn)代工業(yè)的發(fā)展,機械零件常常需要在復(fù)雜、苛刻的條件和環(huán)境下工作,同時人們對機械產(chǎn)品抵御環(huán)境作用的能力和長期運行的可靠性、穩(wěn)定性提出了越來越高的要求。在許多情況下,構(gòu)件、零件和元件