晶格氧使碳化钨的比活性略有下降。
Oxygens in the lattice lower the specific catalytic activity of tungsten carbide for these reactions.
钛和钨的结婚戒指。
探讨了微波煅烧仲钨酸铵制取三氧化钨的新工艺。
The new process of calcine for ammonium paratungstate to tungsten trioxide by microwave was investigated.
矿石中钨的物相分析通常只分析钨华、白钨矿和黑钨矿。
In ordinary chemical phase analyses of tungsten only tungstite, scheelite and wolframite are dealt with.
结合六氟化钨的性质，对六氟化钨中的金属粒子进行分析。
This paper analyzes metal particles in WF6 according to the special characteristic of WF6.
报道了扩散阻挡层材料氮化钨的结构特性随组分变化的情况。
The variation of structure information of tungsten nitride (WNx) with nitrogen con - tent is observed.
改变炭气凝胶与碳化钨的比例，可控制气凝胶的空间孔径范围。
The spatial aperture range of aerogel can be controlled by changing the ratio of the carbon aerogel to the tungsten carbide.
本工作用卢瑟福背散射研究了离子束混合方法形成硅化钨的条件。
The conditions of forming tungsten silicide with As ion beam mixing have been studied by means of Rutherford backscattering.
介绍了用热的浓硫酸处理废硬质合金，回收金属钴和碳化钨的方法。
This article reports on a method of retrieving cobalt metal and tungsten carbide from hard alloy scrap by the sulphate method.
提出了一种改进榨辊齿形并在齿顶弧面上堆焊碳化钨的方法及其加工工艺。
A method to improve the tooth shape of mill roller and adopt the built - up-welding with tungsten carbide on the curved surface of tooth apex has been introduced.
内部件由一种硬的导热材料制成，这种材料最好是诸如钴基体碳化钨的金属基体碳化物。
The inner member is formed of a hard, thermally conductive material, preferably a carbide in a metal matrix, such as tungsten carbide in cobalt.
高导电导热性铜与高温强度、强抗电弧烧蚀钨的良好结合使钨铜复合材料具有一系列优异性能。
The well combination between Cu with preeminent conductivity and W with high-temperature strength and arc-resistance will yield a serial of preeminent properties.
现阶段，我国细粒级黑钨矿的回收主要采用重选法，其中钨的回收率一般在45%以下，损失率较大。
Nowadays, gravity concentration is used to recover fine wolframite, but the recovery of wolframite is lower than 45%.
介绍了国外六氟化钨的制备和精制工艺进展，重点描述了电子工业中应用的高纯度六氟化钨的制备工艺。
The progresses of preparation and purification of tungsten hexafluoride, especially the preparation of high purity tungsten hexafluoride used in the electronic industry, are introduced.
同时介绍了六氟化钨的性质、产品规范、应用及经济等方面的状况，评述了六氟化钨在国内外的发展前景。
And the property, product specifications, application and economics of tungsten hexafluoride are described. The development prospect of tungsten hexafluoride is also reviewed.
根据稀土钕熔盐电解中钼电极所存在的缺点，采用钨代钼作电极，并对钨的生产制造过程和连接方式进行了探讨。
W electrode is used instead of the imperfect mo electrode in the molten-salt electrolysis of nd. The fabrication steps and connection method of W electrode is investigated.
辖区内矿藏较为丰富，储量可观，开发前景广阔，现已探明的有金、铁、铜、钨、大理石等10多个矿种。
Relatively rich mineral area, substantial reserves, development prospects, has been proven gold, iron, copper, tungsten, marble, etc. more than 10 minerals.
综述了近年来我国钨冶炼离子交换工艺取得的重大技术进步。
Recent great technical progresses in ion_exchange technology of tungsten metallurgy in China are reviewed.
介绍了球形铸造碳化钨先进的生产方法。
Advanced production method of spherical cast tungsten carbide is introduced.
他们发现把钨加入镍会产生适当的结构，额外令人高兴的是其混合物能被电镀，并更有利于环保。
They found that when tungsten was added to the nickel it produced a suitable structure.The bonus was that the mixture was capable of being plated and in a way that was more environmentally friendly.
蒙古拥有大量的矿藏资源。铜、煤、钼、锡、钨和金是主要的工业产品。
Mongolia has extensive mineral deposits; copper, coal, molybdenum, tin, tungsten and gold account for a large part of industrial production.
目前，经济实用的钨极氩弧(TIG)焊接方法是应用最为广泛的焊接方法之一。
At present, tungsten inert gas (TIG) welding method is one of the most widely used methods for its advantages of economy and convenience.
都龙锡矿床是中国三大锡矿基地之一——滇东南老君山锡、钨多金属成矿区中最大的矿床。
The Dulong tin deposit is the largest Sn, W polymetallic deposit in Laojunshan, southeastern Yunnan and is also one of the three large tin bases in China.
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.
综述了离子膜技术在钨冶金中的应用，展望了它的应用前景。
This paper summarizes the application of ion exchange membrane technique in tungsten metallurgy industry, and forecasts it's broad prospects.
综述了离子膜技术在钨冶金中的应用，展望了它的应用前景。
This paper summarizes the application of ion exchange membrane technique in tungsten metallurgy industry, and forecasts it's broad prospects.
应用推荐