【摘要】 本文简介了用链篦机—回转窑作为粉末冶金铁粉生产一次还原的工艺流程。讨论了采用链篦机—回转窑法生产铁粉的可能性、作了理论分析,介绍了工业试验结果。实验证明采用链篦机—回转窑生产铁粉工艺上可行;主要原、材料消费仅为现有工艺的1/3～1/2;试验产品的理化性能符合国家二级铁粉标准;可用无烟煤等代替木炭作还原剂,扩大了还原剂来源;省去了陶瓷罐和薄铁皮罐,为国家节省大量耐火材料和薄铁皮;劳动条件较好,易于实现机械化,因此链篦机—回转窑法是迅速发展我国铁粉生产的一条新路。更多还原

【Abstract】 A new process as a trial of iron powder production of once- reductionfor powder metallurgy, i. e., the process of chain grate machine-rotary kiln has been done and the technological flow brieflydescribed. The probablity of this new process as put into production isdiscussed and analyzed theoretically, and results by plant test are intro-duced. A series of tests can be verified that the process of chain gratemachine-rotary kiln availabe. The essential expenses of raw materials bynew process are only 1/3 to 1/2 of that by prevailing domestic process, andphysical and chemical properties of trial-products by new process havebeen come up to Ⅱ grade of iron powder, National standard. Anthracitecoal as a reducing agent may be taken the place of charcoal by new process,thus extending the source of sorts of reducing agents and saving the retortsof ceramic and sheet iron with the result that a great deal of materialresource and costs would econmized. There exists a fairly good working con-dition than before and then it easily helps to bring about mechanization.Therefoe, such a new process may be considercd as new approach in ourcountry rapidly to develop the iron powder production.更多还原