ZrO_2粉双峰级配对钛合金熔模精铸涂料粘度的影响  

Effect of Bipeak Grainsize Distribution of ZrO\-2 Powder\= on Viscosity of Coating in Tialloy Investment Casting

作　　者：李邦盛[1] 蒋海燕[1] 李志强[1] 范洪波[1] 安阁英[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《铸造》1999年第6期22-24,共3页Foundry

摘　　要：研究了ＺｒＯ２（ＣａＯ）粉料双峰粒度级配中细粉颗粒自由充填粗粉间隙并获得较佳致密堆积效果的条件，研究了细粉相对含量对致密堆积系数、涂料相对粘度的影响。结果表明，涂料粉料粒度采用双峰级配后，细粉含量可在０～４３％之间进行调节，以获得适宜的涂料粘度，且双峰粒度涂料的固相含量，在相同粘度条件下，可比单峰粒度涂料高。Abstract Based on theory of bipeak grainsize distribution of powders and through filling the voids between coarse particles using fine one to obtain compact stack effect,influence of relative fraction of powders on the stack coefficient,and relative viscosity of coating was studied.The results showed that,when bipeak grainsize distribution of powders in coating is used and the content of powder,ranges 043%,the optimal viscosity of coating can be achieved.Under equal conditions of viscosity,the solid content in coating for bipeak grainsize distribution of powders is higher than that for singlepeak.

关 键 词：粒度级配 涂料 粘度 钛合金 熔模铸造 

分 类 号：TG222[金属学及工艺—铸造] TG249.5[机械工程—精密仪器及机械]