纯铝基泡沫铝材料的制备研究

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1、东北大学硕士学位论文纯铝基泡沫铝材料的制备研究姓名：李兵申请学位级别：硕士专业：有色金属冶金学指导教师：刘宜汉;姚广春20060101东北大擘硕士学位论文AbstractAluminumfoamisacompositematerialconsistingofmetallicmatrixandgasbubbles：Itcombinedthepropertiessuchashighstrength，fire·proofofthemetalaluminumwiththepropertiessuchasdyn

2、amicanti—vibration，soundandheatisolation，impactabsorptionandelectro—magneticshieldingoftheisolatedvesicle．Soitcouldbewidelyusedinvariousfields，suchastransportation，architectureandmachine，metallurgyandchemicalindustry，electro·communicationandaerospace．Al

3、uminumfoamisregardedasaveryimportantresearchprojectofhightechfieldofmaterialscience，anditiswidelyexploredintheworld．Preparationofaluminumfoamisalsosupportedbythekeyscienceandtechnologyprojectsandthehightechresearchanddevelopmentprojectsinourcountry．Inin

4、dustryapplications，mechanicsperformanceofaluminumfoam，especialit'senergy-absorbingperformancehasattractedmoreandmorepeople’Sattentions，becauseofgoodtoughnessofitsbasedmetal，purealuminumfoamisalsopaidmoreandmoreattentionsasatoughnessmetalfoammaterial．Int

5、hisstudy，themeltfoamingmethodwasstudiedtofabricatepurealuminumfoam．Rawmaterialwaspurealuminum，viscosity—increasingagentwasCa，foamingagentwasTill2．Duringexperimentinlab—scale，optimaltechnicsconditionandparameterincruciblefoamingprocesswasgiven：additionqu

6、antityofviscosity-increasingagentwas2～3％(mass)，additionquantityoffoamingagentwas1．0-1．5％(mass)，thetemperaturetoaddfoamingagentwas690～700℃．Processoftransferringfoaminginquadrateboxisbasedoncrucibleexperiment，Duringprocessoftransferringfoaming，foamingtemp

7、eratureandfoamingtimewasstudied．Whenfoamingtemperatureis640-680。Candfoamingtimeis4～5min，wecanobtainsatisfactoryproducts．Basedonlab—scaleexperiments，theexperimentinsemi—industrywasdone，theresultshowsthatthecommerciaIaluminumfoamslabssized2000mm×l000mm×Xm

8、mwereobtained．Thereasonofcausedisfigurementduringsemi·industryexperimentationwasanalyzedandmethodofresolvingthedisfigurementwasdiscussedlater．Compressperformanceandelectromagnetismshieldingweretested．Resultofcompressperformancesh