Tungsten News

Tungsten News
Why Fine Tungsten Wire Can Be Used for Window Heating? 156

Tungsten is the most widely used refractory metal with up to 3410℃ melting point. It also has good electrical and thermal conductivity under the conditions of low thermal expansion, low vapor pressure and high temperature, so tungsten is widely used to make filaments of various incandescent lamps and tungsten halogen lamps and electrodes of gas discharge lamps. In addition, tungsten wire can be used as a heating material for high temperature furnaces, heating elements for electronic tubes and reinforcing ribs…

Tungsten News
What Is the Function of Molybdenum Seed Holder in Sapphire Crystal Growth? 196

What Is Molybdenum Seed Holder? Molybdenum seed holder, also named molybdenum chuck, is widely used in vacuum furnaces and sapphire crystal growth furnaces to connect the seed rod for crystal growth. The seed rod inserted into the moly chuck, and fixed by a molybdenum pin or taper. The purity of this holder is above 3N5, the density can reach 10.0g/cm3, and the working temperature is controlled below 1700℃. Regularly, the diameter ranges from 10mm to 100mm and length ranges from…

Tungsten News
Why Molybdenum Hammer Is Important in the Monocrystalline Silicon Growth? 197

What Is Molybdenum Hammer? The hammer is usually made of tungsten and molybdenum materials as it is used in high temperature furnaces that require the materials to be heat resisting. It is mainly used to connect molybdenum seed holder and tungsten wire rope, and is hung on the suspension clamp or jumper the bottom, increasing the clamp vertical load heavy objects. Although the product can be made from both tungsten and molybdenum metals, as tungsten price is higher than molybdenum,…

Tungsten News
Types of JEOL’s EB Tungsten Filament 221

What Is JEOL’s EB Tungsten Filament？ Evaporation source materials used for vapor deposition require excellent electrical conductivity, high melting point and low vapor pressure. Therefore, many vapor deposition accessories are made of tungsten. Filaments/heaters made of tungsten have the characteristics of high melting point, low thermal expansion coefficient, good corrosion resistance and long evaporation life. Japan Electron Optical Laboratory is the full name of JEOL. After decades of exploration and research by the world’s top scientific instrument manufacturers, they created…

Tungsten News
Will Molybdenum Plates Replace Graphene in the Electronics Industry? 185

Molybdenum is the most widely used materials in the processing industry. It can be used in the iron and steel industry, most of which are industrial molybdenum oxide briquette directly used for steelmaking or cast iron, a small part is smelted into ferromolybdenum and then used in steelmaking, or synthesized with other metals to make molybdenum plates. Plates made of molybdenum or molybdenum alloy can improve the corrosion resistance, strength and wear resistance of the original metal. With the characteristics…

Tungsten News
What Are Differences of Tungsten Copper Foils, Sheets and Blocks 196

What do you know about tungsten copper foils, strips, sheets, plates, or blocks? What are their differences? Actually, they are the same product with rectangular shape. To distinguish them, people often call them differently. Foils usually mean plates with thickness less than 0.1mm; strips mean thin and narrow plates; sheets mean plates with 0.1-2.0mm thickness; plates mean 2.0-10.0mm thickness and thickness above 10.0mm will be called blocks. Tungsten copper alloy is a refractory metal alloy of tungsten and copper which…

Tungsten News
How Does Tungsten Filament or Tungsten Cathode Work? 231

Tungsten filament, also named tungsten heater, tungsten filament coil or tungsten cathode, is made of tungsten material and formed by single tungsten wire or multiple strands according to the specific requirements of the available samples or drawings. As a typical representative of refractory metal tungsten products, its tungsten content is generally more than 99.95%, and the diameter is in the range of 0.2-2.5mm. With characteristics of high melting point, high specific gravity, high strength, high hardness, high resistivity, low vapor…

Tungsten News
Market Research of Tungsten Wire for Diamond Wire Saw in China’s Photovoltaic Industry (II) 906

Chapter 2 Overview of Different Segments of Photovoltaic Industry On September 22, 2020, President Xi sdeclared at the 7 the 75th General Assembly of the United Nations that “China aims to hit peak emissions before 2030 and for carbon neutrality by 2060”. On December 12, 2020, General Secretary Xi emphasized at the Climate Summit that “by 2030, China’s CO2 emissions per unit of GDP will be lowered by more than 65% from the 2005 level. The proportion of non-fossil energy…

Tungsten News
Duplex Stainless Steel Containing Molybdenum Is Used in Xiamen Mountains-to-Sea Trail 237

Carbon steel is widely used around the globe for the construction of bridges of sizes ranging from the very large to the very small, but now many bridges around the world are approaching the end of their useful life because carbon steel bridges do not have the corrosion resistance benefits offered by chromium, molybdenum and other alloying elements. The forward-looking design of the Soderstrom Bridge with duplex stainless steel highlights the benefits of building bridges from structural stainless steel in…

Tungsten News
What Are Excellent Properties of Molybdenum Disulfide in High Temperature Grease? 259

Molybdenum disulfide (MoS2) is a naturally occurring black solid compound that is slippery to the touch. It transfers easily and adheres to other solid surfaces it comes in contact with. Its mineral form — called molybdenite — was often confused with graphite until the late 1700s. Both have been used for lubricating and writing materials for centuries. So, what are the excellent properties of MoS2 in high temperature grease? 1)it can improve the bearing capacity of the grease and make…

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