高压坯强度钨粉制备新工艺研究  

The New Process of High Green Strength Compacted Tungsten Powder

作　　者：魏庭民 朱亚模 李志锋 林钊 张永会 陈伟豪 WEI Tingmin;ZHU Yamo;LI Zhifeng;LIN Zhao;ZHANG Yonghui;CHEN Weihao(Ganzhou JXTC SUMMIT AT&M New Materials Co.,Ltd.,Ganzhou 341000,Jiangxi,China;Jiangxi Tonggu Nonferrous Metallurgical&Chemical Products Co.,Ltd.,Yichun 336200,Jiangxi,China)

机构地区：[1]赣州江钨友泰新材料有限公司,江西赣州341000 [2]江西铜鼓有色冶金化工有限责任公司,江西宜春336200

出　　处：《中国钨业》2022年第2期47-52,共6页China Tungsten Industry

摘　　要：随着经济的高速发展,用于生产钨制品的高压坯强度钨粉需求量在逐年增多。本文对一种生产高压坯强度钨粉的工艺方法进行了研究,该工艺方法流程为“APT-煅烧-前驱体粉末-氢还原-过筛-高压坯强度钨粉”。试验对前驱体粉末的性能参数进行了分析,并对其制备成的钨粉与常规钨粉在粒度分布、微观形貌以及制成压坯后的压坯强度等方面进行了分析和比较。试验结果表明:此工艺方法可适用于规模化生产高压坯强度钨粉,其整体工艺流程简洁,并且可以有效地避免氢气回收净化系统中产生氨大量富集的现象。With the rapid development of economy,the demand for high green strength compacted tungsten powder used to produce tungsten products is increasing in the latest years.This paper studies a technique for high green strength com-pacted tungsten powder.The main process of the method is“APT-calcination-precursor powder-hydrogen reduction-sieving-high green strength compacted tungsten powder”.In the experiment,the performance parameters of the precur-sor powder were analyzed.At the same time,the tungsten powder prepared with the precursor thing and normal tungsten powder were analyzed and compared in terms of particle size distribution,micromorphology,and green compact strength after compacting.The results show that this technology can be applied to the large-scale production of high green strength compacted tungsten powder.It has simple overall processes and can effectively avoid the enrichment of ammo-nia in the hydrogen recovery and purification.

关 键 词：高压坯强度钨粉 APT 煅烧 前驱体粉末 氢还原 

分 类 号：TF841.1[冶金工程—有色金属冶金] TF123