Preparation of electrolytic iron powder and its compression sintering properties

Electrolytic iron powder was prepared from electrolytic iron sheets and its purity and hardness were studied. Meanwhile, the electrolytic iron powder produced by an electrolysis plant was used as raw material to study the compression and sintering properties of electrolytic iron powder. The results show that the purity of electrolytic iron sheet reach 99.98 mass% and 99.99 mass% respectively under the optimal combination of factors; the compact density of electrolytic iron powder increases with the increasing of pressing pressure, and the iron powder with large particle size is more favorable for press forming, but the pore size becomes larger and the distribution is uneven; the sintered density of electrolytic iron powder increases with the increasing of sintering temperature, and increases slowly with the increasing of holding time. Thus, in actual production, the sintering efficiency should be improved by appropriately increasing the sintering temperature and shortening the sintering time.