Tungsten News

Tungsten News
Types of JEOL’s EB Tungsten Filament 193

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? 167

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 183

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? 198

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) 813

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 209

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? 234

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…

Tungsten News
The Usages and Production Process of Molybdenum Wire 182

As a typical molybdenum product, molybdenum wire is a kind of thin wire after forging and drawing of molybdenum rod. With high purity of more than 99.95% and owing the advantages of molybdenum metal, it can be widely used in the various fields. Generally, the diameter is between 0.02-12.00mm. It is worth mentioning that, in order to further improve the its performance and expand its application range, manufacturers often add lanthanum, yttrium and other rare earth elements in its manufacture.…

Tungsten News
Market Research of Tungsten Wire for Diamond Wire Saws in China’s Photovoltaic Industry (I) 696

Chapter 1 Basic Concept of Solar Energy, Photovoltaic (PV) & Tungsten Wire The 2021 edition of “China Potovoltaic Industry Development Roadmap”, edited by experts at the China Photovoltaic Industry Association (CPIA) and CCID Thinktank Institute of Integrated Circuits, was released on February 23, 2022, under the guidance of the Ministry of Industry and Information Technology of the People’s Republic of China. Basic on authoritative statistics and basic thinking of the article, China Tungsten Online provides an overview of the background…

Tungsten News
Import & Export Data of China’s Tungsten Products before May 2022 525

China Tungsten Online collates the import and export data of China’s tungsten products published by General Administration of Customs of the People’s Republic of China as follows: From January to may in 2022, China’s tungsten products imports totaled 3300.50 tons, an increase of 8.72% year-on-year; The cumulative import amount was 548.936 million CNY, an increase of 51.64% year-on-year. Among them, from January to may, China imported 2060.17 tons of Tungsten ores and concentrates, a year-on-year decrease of 5.53%; Tungsten trioxide…

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