结果表明：在适当的工艺条件下，使用蓝钨可以制得超细钨粉。
The result shows that ultra-fine tungsten powder can be produced with blue tungsten oxide under appropriate conditions.
通过进一步碱浸可提高钨粉的纯度。
The purity of tungsten is improved by leaching in NaOH solution.
用氢还原紫色氧化钨可高效地获得细钨粉。
The fine tungsten powder has been effectively obtained by hydrogen reduction of purple tungsten oxide.
不同的氧化钨原料明显地影响到钨粉的粒度。
The raw materials of various tungsten oxides strongly affect the particle size of tungsten powder.
对振动球磨法制取超细碳化钨粉末进行了研究。
Study is made of the vibrating ball miling for ultra-fine WC powder preparation.
本文对废碳化钨粉的氯化反应进行了实验研究。
This paper describes the chlorination process of waste tungsten carbide powder.
对供给态和研磨态超细钨粉的颗粒粒度进行了表征。
The particle size measurement of as-supplied and lab-milled ultrafine tungsten powders were investigated.
采用振动球磨机对粗颗粒金属钨粉进行超细粉碎研究。
The study of ultra fine comminution is carried out by using vibration mill and coarse tungsten powder as original material.
用途：钨粉是加工粉末冶金钨制品和钨合金的主要原料。
Uses: Tungsten powder is tungsten powder metallurgy processing of tungsten alloy products and the main raw material.
产品：稀有金属钨粉，碳化钨，超硬质钨钢（硬质合金）
Products: Tungsten Powder , Tungsten Carbide Powder, Cemented Carbide Alloy.
利用放电等离子烧结技术尝试烧结出了超细纯碳化钨粉。
Attempt to sinter ultrafine Pure WC by spark plasma sintering was made.
本文主要介绍了中颗粒钨粉一步还原法的生产工艺及设备。
This paper has mainly described the one-step technical process and equipment for producing tungsten powder having medium particle size.
用液-固掺杂及两段还原法制备了氧化钪及铼掺杂的钨粉。
Scandia and rhenium doped tungsten powders were prepared by solid-liquid doping combined with two-step reduction method.
研究了钨粉粒度和碳化钽对钨块致密化和晶粒大小的影响。
The effects of particle size of tungsten powders and TaC quantity on densification and grain size were investigated.
高比重钨合金材料由钨粉末、镍粉末、铁粉末和钴粉末制成。
The high specific weight tungsten alloy material is prepared by tungsten powder, nickel powder, iron powder and cobalt powder.
液相烧结态钨合金的力学性能主要与原始钨粉粒度及烧结温度有关。
The mechanical properties of a tungsten heavy alloy were found mainly dependent on the particles size of raw tungsten powders and liquid-phase sintering temperature.
钨粉粒径主要通过影响铜网络的分布及界面的多少来影响导热性能。
The particle size of the tungsten affected the TC mainly through changing the copper network and the interface.
对粗颗粒碳化钨粉制取过程中杂质含量和碳化质量的控制问题进行了探讨。
The impurity content control and the quality control in the carbonization process in the production of coarse tungsten carbide have been studied.
所述粉末的制备包括如下步骤：1）对纯钨粉进行筛分，清洗、烘干处理；
The powder is prepared through the following steps: 1. sieving, washing and stoving W powder;
试验研究了不同含量的两种碳化钨粉末对镍基自熔合金喷熔层耐磨性的影响。
Effect of type and content of WC on the wear resistance of Ni base spray melt layers were studied.
结果表明，初始钨粉粒径越小，制备得到钨块的密度越小，晶粒平均直径也越小；
The results show that the smaller the particle size of tungsten powders, the lower the density and the smaller the grain size of the sintered tungsten block.
试验中采用粗、中、细3种碳化钨粉末进行了不同球料比、不同球磨时间的试验。
Coarse, medium and fine WC powders are used for tests at different ball percentage and milling time.
以偏钨酸铵(AMT)为原料，采用喷雾干燥法结合氢气还原方法成功制备出球形钨粉。
The spherical tungsten powder was fabricated by spray-drying method combined with hydrogen reduction using ammonium metatungstate (AMT) as raw materials.
以偏钨酸氨为原料，采用喷雾干燥、焙烧、球磨和纯氨氮化工艺进行了氮化钨粉体制备研究。
Nanometer tungsten nitride powders were synthesized as amm onium metatungstate by means of spray drying, calcination, milling and nitration in pure ammonia.
采用扫描电镜和X射线衍射仪分析了原始钨粉、炭化粉末和反应沉积物的显微组织和成分。
Scanning electron microscopy and X-ray diffraction were used to analyze the starting tungsten powder, the carburized tungsten powder and the deposit.
发现钨和碳化钨粉形状复杂，多为树枝状或链状颗粒团形式，碳化钨粉中有较多的晶体缺陷。
It indicates that the shape of W and WC grains is varied, such as dendritic and chain structure, and there are many crystal defects in WC grains.
采用电镜、能谱、X射线衍射分析、粒度分析等方法研究了掺杂钨粉的粒度及稀土元素的分布。
The particle size of doped tungsten and distribution of rare earth were studied by means of SEM, EDS, XRD and granularity analysis.
碳化钨粉是生产硬质合金的重要原材料，纳米碳化钨粉可使硬质合金具有许多更加优良的特性。
WC powder is an important raw material for production of cemented carbide. Cemented carbide from nano structured WC powder has excellent characteristics.
结果表明：还原温度是制取超细钨粉的关键因素，在适当的工艺条件下，可以使用蓝钨制得超细钨粉。
The results showed that reduction temperature is critical for the preparation of ultra-fine W-powder from blue tungsten oxide under appropriate technological conditions.
结果表明：还原温度是制取超细钨粉的关键因素，在适当的工艺条件下，可以使用蓝钨制得超细钨粉。
The results showed that reduction temperature is critical for the preparation of ultra-fine W-powder from blue tungsten oxide under appropriate technological conditions.
应用推荐