电解工艺对镍粉粒度及其分布的影响

来源期刊：中南大学学报(自然科学版)1996年第3期

论文作者：张齐勋 张家顺

文章页码：308 - 311

关键词：电解工艺; 镍粉; 粒度; 粒度组成

Key words：electrolytic parameters; nickel powder; particle size; particle size distribution

摘    要：对电解工艺与Ni粉粒度和粒度组成的关系作了研究。结果表明：ρ_Ni²⁺为3g/L时,粒度小于10.8μM的粉末可高达99.3%;电流密度为1500A/m²时,粒度为2.7～8.1μm粉末占全部粉末的80%;随着(NH₄)₂SO₄含量增大,Ni粉粒度变粗;电解液温度以40～50℃为佳;每次刷粉时间以20～30min为宜.

Abstract: The particle size and particle size distribution of electrolytic Ni powder are closely related to processing conditions.It has been found that the amount of powders with particle diameter under 10.8 μm is as high as 99.3%,when ρ_Ni²⁺ is 3 g/L;powders with 2. 7～8.1 μm reach 80% of its tatal,when current density is 1500 A/m².The particles will be coarsened while content of (NH₄)₂SO₄ in electrolyte increases.The best electrolyte temperature is 40～50℃, and the best schedule of brushing powder is 20～30 min.