RF induction plasma spheroidization of tungsten powders
射频感应等离子体制备球形钨粉的工艺研究
by using the process composed of dissolving with hot concentrated hydrochloric acid,roasting,leaching,hydrolysis,crystallization and reduction,it is possible to recover valuable metals and make metallic tungsten powder,cobalt powder and metallic titanium.
采用先热浓盐酸溶解,再焙烧、浸出、水解、结晶和还原等方法,可分离回收金属,制取金属钨粉、钴粉和金属钛。
It is attractive for hard alloy manufacturer to obtain tungsten powder with coarse and homogenous grain.
晶粒粗大且均匀的碳化钨粉一直是粗晶硬质合金制造者的迫切需要,本文通过对钨粉分级再碳化工艺的研究,有效解决粉末夹粗夹细现象,制造粗晶碳化钨粉。
The result shows that the process of γ-tungsten oxide deoxidization is the key to produce ultra-fine W powder.
实验结果表明:γ-氧化钨氢还原过程是制取超细钨粉的关键环节。
The application and study of spheroidal W powder both at home and abroad is reviewed in the paper In order to produce the spheroidal tungsten powder at high efficiency and low cost, a modified conventional plasma equipment as well as the spheroidization process was investigated in lab.
用 Ａｒ 做 工作气 体，将费氏 粒度为 １５ μｍ 的 工业钨 粉用 Ｈ２ 送入 等 离子 体炬 中 熔化 ，熔 融的 钨颗 粒直接导入 水中冷却 ，可得到 良好球 化效果的 球形钨粉 。
A novel process for prepering tungsten nano-powder;
纳米钨粉制备的一种新方法
This paper introduces the principle of purple tungsten oxide composition and production,the details of production process control,detection methods and the use of ultra-fine tungsten powder and ultra-fine cemented carbide.
简要介绍了紫色氧化钨的组成及生产原理,详细论述了其生产过程的控制因素、检测方法以及在超细钨粉及超细晶硬质合金中的运用。
Ultra-fine WO3 particles were prepared by reverse setting,microemulsion and sol-gel methods respectively and were reduced into ultra-fine tungsten powders in hydrogen atmosphere.
采用反向滴加沉淀法、微乳法和溶胶-凝胶法3种液相方法合成超细WO3,然后将超细WO3在高纯氢气氛中还原成超细钨粉。
Determination of trace As and Sn in pure tungsten powder by graphite furnace atomic spectrophotometry;
石墨炉原子吸收光谱法测定纯钨粉中痕量砷和锡
It shows that the rare earth elements can slow the doped tungsten powder's reductive rate and it takes more time for doped tungsten powder with rare earth to split than those without.
利用中止还原的方法,研究了稀土元素对掺杂钨粉还原过程及其性能的影响。
Comparison of Ultrafine Tungsten Powder Produced by Hydrogen Reduction of Blue Tungsten Oxide and Violet Tungsten Oxide
蓝钨与紫钨氢还原法生产超细钨粉的比较
Tungsten powder and tungsten carbide powder--Determination of specific surface product (average graininess--Simplified nitrogen absorption method
GB/T2596-1981钨粉、碳化钨粉比表面积(平均粒度)测定简化氮吸附法
Influence of Annealing Heat Treatment on Properties of Nano-tungsten Powder
退火热处理对纳米钨粉体性能的影响
Characterization of Nano-tungsten Powder and Its Lattice Distortion Analysis
纳米钨粉体的表征及其晶格畸变分析
In 1984, Ganzhou Tungsten and Molybdenum Materials Factory was into production.
1984年，赣州钨钼材料厂投产，引进日本技术，生产出了钨粉、棒、丝等产品。
EFFECTS OF W PARTICLE SIZE AND SINTERING TECHNOLOGY ON STRUCTURE AND MECHANICAL PROPERTY OF HIGH DENSITY ALLOY
钨粉粒度和烧结工艺对高比重钨合金组织结构和力学性能的影响
Thermal stability of composite of nanocrystalline WC powder and carbon nanotubes
碳纳米管复合纳米碳化钨粉体的热稳定性
RF induction plasma spheroidization of tungsten powders
射频感应等离子体制备球形钨粉的工艺研究
STUDIES ON WHITE POWDERY TUNGSTIC ACID (Ⅱ)--THE PREPARATION OF VARIOUS METATUNGSTATES
粉状白钨酸的研究(Ⅱ)——从粉状白钨酸制备偏钨酸盐
Research on Influence of Milling Techniques on Tungsten-copper Composite Powder and Its Alloy;
球磨工艺对钨铜复合粉及钨铜合金影响研究
Cobalt-coated tungsten carbide composite powders
GB/T3991-1983钴包碳化钨复合粉
Studies on Powdery White Tungstic Acid(Ⅻ)--Preparation and Properties of Certain Organic Ammonium Polytungstates
粉状白钨酸的研究(Ⅻ)——某些聚钨酸有机铵盐的合成和性质
Determination of Ta Ti W Fe in Ta-Ti-W-Fe Iron by the Powder Press Slice-Xray Fluorescence Spectrometry
粉末压片-X射线荧光分析钽钛钨铁合金中钽钛钨铁
Method for measuring the distribution of the powder size of tungsten and molybdenum method by the balance for the fall of the particles
GB/T4195-1984钨钼粉末粒度分布测试方法(沉降天平法)
Preparation of Ni-coated Superfine WC Composite Material
热喷涂用镍包裹超细碳化钨复合粉体的制备
ELECTRON GUN, PHOSPHOR, GETTER , TUNGSTEN HEATER FOR B/W PICTURE TUBE.
黑白显像管用电子枪，荧光粉，吸气剂，钨加热子等。
Preparation of Nanometer Tungsten-based Composite Powder and Study of Properties for Its Alloys;
纳米级钨基复合粉末的制备及其合金特性研究
The Luminescence Properties of M_2(WO_3)_(2-x)(MoO_4)_x: Eu~(3+)(M=Li, Na, K);
稀土钨酸钼酸盐荧光粉发光性能的研究