水淘析法有效性分析
(北京科技大學 材料科學與工程學院， 北京100083)
摘 要: 通過對水淘析法的原理分析，運用流體力學中的摩擦數(shù)群法確定了以陶瓷夾雜物在水中的沉降速度來確定水流速度， 及在確定的水流速度下， 所能淘析出的FGH95合金粉末的最大尺寸；并以比較淘析出的FGH95合金粉末的實際最大尺寸與理論最大尺寸， 考察了水淘析法分離FGH95合金粉末中的陶瓷夾雜的有效性。
關鍵字: FGH95合金粉末； 陶瓷夾雜； 水淘析； 摩擦數(shù)群法
（School of Materials Science and Engineering,
University of Science and Technology Beijing，
Beijing 100083, China）
Abstract:The principle of water elutriation process was discussed.The water flowing velocity was calculated by ceramic dropping velocity in the water by means of the frictional numeral groups method, and the maximum size of FGH95 alloy powder elutriated was determined under certain water flowing velocity. In order to justify the efficiency during the water elutriation process of separating ceramic inclusions from FGH95 alloy powder, the maximum theoretical and experimental size of FGH95 powder elutriated was compared at different water flowing velocity.
Key words: FGH95 alloy powder； ceramic inclusions； water elutriation； frictional numeral groups method
