典型文献
Fluidization behavior of graphitized glassy particles in a fluidized carbon bed cooling process for investment casting
文献摘要：
Fluidized Carbon Bed Cooling(FCBC)is an innovative investment casting process for directional solidifi-cation of superalloy components.It takes advantage of a fluidized bed with a base of small glassy carbon beads for cooling and other low-density particles that form an insulating layer by floating to the bed surface.This so-called"Dynamic Baffle"protects the fluidized bed from the direct heat input from the high-temperature heating zone and provides the basis for an improved bed microstructure.The prereq-uisites for a stable casting process are stable fluidization conditions where neither collapse of the bed nor particle blow out at excessive bubble formation occur.This work aimed to investigate the fluidization behavior of spherical carbon bed material in argon and air at temperatures between 20 to 350℃.Systematic studies at reduced pressures using the FCBC prototype device were performed to understand the stable fluidization conditions at all stages of the investment casting process.The particle shape factor and size distribution characterization and the mea-surement of the powder's minimum fluidization velocity and bed voidage show that this material can be fully utilized as a cooling and buoyancy medium during the FCBC process.
文献关键词：
中图分类号：
作者姓名：
Paul Git;Matthias Hofmeister;Robert F.Singer;Carolin K?rner
作者机构：
Chair of Materials Science and Engineering for Metals(WTM),Friedrich-Alexander Universit?t,Erlangen-Nürnberg(FAU),Martensstr.5,91058 Erlangen,Germany
文献出处：
引用格式：
[1]Paul Git;Matthias Hofmeister;Robert F.Singer;Carolin K?rner-.Fluidization behavior of graphitized glassy particles in a fluidized carbon bed cooling process for investment casting)[J].颗粒学报（英文版）,2022(06):32-38
A类：
FCBC,solidifi,Baffle,prereq,uisites,voidage
B类：
Fluidization,behavior,graphitized,glassy,particles,fluidized,carbon,bed,cooling,process,investment,casting,Fluidized,Carbon,Bed,Cooling,innovative,directional,cation,superalloy,components,It,takes,advantage,base,small,beads,other,density,that,insulating,layer,by,floating,surface,This,called,Dynamic,protects,from,input,high,heating,zone,provides,basis,improved,microstructure,stable,are,fluidization,conditions,where,neither,collapse,nor,blow,out,excessive,bubble,formation,occur,work,aimed,investigate,spherical,material,argon,air,temperatures,between,Systematic,studies,reduced,pressures,using,prototype,device,were,performed,understand,stages,shape,size,distribution,characterization,mea,surement,powder,minimum,velocity,show,this,can,fully,utilized,buoyancy,medium,during
AB值：
0.536984
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