添加剂对钨铜粉末温轧成形生坯致密化影响的规律研究  

Effect of Additives on the Green Densification of Tungsten Copper Powder by Direct Powder Rolling

作　　者：李达人 陶麒鹦 韩胜利 

机构地区：[1]广东省材料与加工研究所,广东广州510650 [2]广东省金属强韧化技术与应用重点实验室,广东广州510650

出　　处：《中国钨业》2017年第3期54-58,共5页China Tungsten Industry

基　　金：广东省省属科研机构改革创新项目(2014B070706022;2016B070701021);广东省金属强韧化技术与应用重点实验室(2014B030301012);广州市科学研究专项(201510010100)

摘　　要：采用粉末温轧工艺制备了W-20Cu生板坯,研究了轧制温度及添加剂对钨铜金属粉末温轧生板坯相对密度、厚度、轧制压力等的影响。结果表明:添加剂中PW(Liquid)与PEG400配比为4:1时,板坯保形性较好,密度最高可达11.782 g/cm^3。W-20Cu粉末温轧得到的板坯保形性较好。轧制压力与相对密度均随着PW(Liquid)质量分数的增加先增大而后降低;当轧制温度在110℃时,可以在轧制压力较低的情况下,轧制得到相对密度为78.51%的生板坯。W-20Cu alloy plate was prepared by warm direct powder rolling （DPR） technique. The effects of rolling temperature and additives on the relative density, thickness, rolling pressure of alloy plate were studied. The results show that the alloy plate formability is optimal and the density is up to 11.782 g/cm3 when the ratio of PW （Liquid） to PEG400 is 4-1. The rolling pressure and relative density first increase then drop with the adding PW （Liquid） mass fraction. When the rolling temperature is 110℃, the green slab having a relative density of 78.51 % can be obtained by rolling at a low rolling pressure.

关 键 词：W-Cu合金 粉末轧制 添加剂 温轧成形 

分 类 号：TF124.33[冶金工程—粉末冶金]