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W-Cu Alloy Preparation Method 197

Now there are two kinds of W-Cu alloy preparation methods, which are traditional methods and modern methods. The alloy made by tungsten and copper with 10% ~ 50% copper content has good electrical and thermal conductivity, high temperature strength and plasticity to some degree. W-Cu alloy is widely used to manufacture high-temperature components including high-voltage electrical switch contacts resistant to erosion, rocket nozzle throat liner, tail rudder etc., and also used as electrodes for electrical machining, high-temperature mold and other…

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Tungsten Crucible Crack Analysis 196

The tungsten crucible crack analysis is quite important. If the problem that the bottom of crucible easily cracks is not solved, it will directly affect the yield of the crucible. Although powder metallurgy method producing crucible has many advantages including greatly saving metal consumption and reducing production cost, there are still many technical problems to be solved such as the bottom of crucible easily cracking. There are many kinds of preparation methods to produce crucible, powder metallurgy method is widely…

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Preparation Methods of Tungsten Crucible 230

What is tungsten crucible? It is made by turning and welding with tungsten rod, and produced from pure tungsten plate, tungsten sheet and pure tungsten rod according to relevant technology, many types of preparation methods are available. It has wide application in rare earth smelting, quartz glass, crystal growth and other industries, and plays an important role in modern industry. Six main preparation methods of tungsten crucible are available: 1.0 Isostatic pressing sintering method 2.0 Forging method 3.0 Chemical vapor…

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Toyota Solid-state Battery Will Be Released within the Year 181

Recently, Toyota Motor will launch a “disruptive” solid-state battery this year, which can provide 500 kilometers of battery life, can be charged from empty to full within 10 minutes, and has minimal safety hazards, so it is expected to become a water-based battery. A viable alternative to lithium-ion batteries with electrolyte solutions. At present, the power batteries carried by pure electric vehicles are mainly ternary lithium batteries and lithium iron phosphate batteries, but these two traditional lithium-ion batteries also have…

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Application of Cesium Tungsten Bronze 123

Cesium tungsten bronze is a typical compound of rare metal tungsten. Its chemical formula is CsxWO3. It has a crystal structure similar to that of tungsten bronze. It has a special oxygen octahedral structure. Therefore, it has excellent mechanical, optical and thermal properties and is widely used in medical, Film, glass, textile fiber and other fields. The following mainly introduces several major application of CsxWO3. The use of CsxWO3 in tumor diagnosis and treatment CsxWO3 ultra-fine particles are considered to…

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High Purity Cesium Tungsten Bronze for Heat Insulation Film 132

As for the new generation of heat insulation film, the reason why it needs to add some high purity cesium tungsten bronze powder as a key dingal raw material during production is because it has excellent optical properties, mainly in its visible light transmittance, excellent near infrared absorption performance. Next, let’s take a look at how to choose high-performance insulation film? Light transmittance: You should not choose a heat insulation film with too low light transmittance, especially the front windshield…

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New Production Method of Spherical Tungsten Powder 137

At present, the preparation methods of spherical tungsten powder include: (1) plasma method; (2) tungstate hydrogen reduction method; (3) tungsten halide hydrogen reduction method; (4) cyclic oxidation method. Although they can prepare spherical W powder, they have the disadvantages of complex process, long production cycle, low production capacity, high manufacturing cost, low sphericity, and uneven product particle size distribution. Therefore, the following will introduce a new production method of spherical tungsten powder. The specific steps are as follows: (1) Weigh…

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China Wolframite Output Accounts for 90%, Scheelite 10% 220

Currently there are two types of minerals in China: wolframite and scheelite. Tungsten is a kind of rare metal and significant strategic material. It is called “heavy stone” from ancient China. In 1783 tungsten was named by the Spaniard DE Puria. The tungsten content in the crust is 0.001%. Generally the tungsten ores are formed for the activity of granitic magma. Tungsten is a silver-white shiny?metal with high melting point and high hardness after smelting. There are more than 20…

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China Tungsten Reserve and Tungsten Output Rank Top 216

China?has the?largest?tungsten reserve?and tungsten output?whose reserve?are four times of ?other countries in the world, tungsten ore?was?found early 10th century and was?called “heavy stones” at that time.Tungsten ore in China is?mainly located in the Sanjiang tungsten tin metallogenic belt,West Qinling-Qilianshan metallogenic belt, Tianshan-Beishan metallogenic belt, south China metallogenic belt and north China metallogenic belt. Nanling metallogenic belt?is the most richiest in south China metallogenic belt, and numerous large and super large tungsten ores are distributed in this metallogenic belt with more…

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Polymer Tungsten CT Protective Clothing 407

Polymer tungsten CT protective clothing is a new type of lead-free medical protective products. Its X-ray shielding rate can reach 99%. And it is much lighter than traditional lead protective clothing, so it is more suitable for providing X-ray protection for patients and medical staff. More details, please visit: http://www.tungsten-alloy.com/tungsten-alloy-radiation-shielding.html As we all know, in modern medicine, the use of X-rays has brought great benefits to medical diagnosis and radiotherapy, but at the same time, it will also damage the…

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