惰气雾化过程中粉末破碎机理研究  

Study on Mechanism of Powder Disintegrating in Inert Gas Atomization

作　　者：马尧[1,2] 王旭[1,2] 胡宇[1,2] 石长江[1,2] MA Yao;WANG Xu;HU Yu;SHI Chang-jiang(Beijing General Research Institute of Mining and Metallurgy,Beijing 100160,China;Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts,Beijing 102206,China)

机构地区：[1]北京矿冶研究总院,北京100160 [2]北京市工业部件表面强化与修复工程技术研究中心,北京102206

出　　处：《热喷涂技术》2017年第1期34-36,11,共4页Thermal Spray Technology

摘　　要：通过理论分析及高速摄像的手段,系统研究了惰气雾化法制粉技术的雾化机理,验证了熔液先后经历膜化、断裂为纤维状、破碎为小液滴的破碎方式,并指出了过冷状态下合金材料的塑性是粉末球形度的不利影响因素之一。The atomization mechanism of inert gas atomized process was studied by theoretical analysis and highspeedphotography system.The melt experienced the process of filmed,cracked into fibreand broken into smalldropletswas verified,and the effect of plastic properties of the supercooled material on the spherical degree ofpowder was also pointed out.

关 键 词：雾化 破碎 粉末 

分 类 号：TG174.4[金属学及工艺—金属表面处理]