Tungsten News

Tungsten News
Energy Saving SiC Heating Elements and MoSi2 Elements for Electric Furnace 285

There are several types of heating elements available for industrial heating. Generally speaking, metallic heating elements such as nichrome wire (Ni-Cr) are commonly used in lower temperature ranges (up to 1100°C), and MoSi2 elements are often used in high-temperature ranges (1200-1900°C). Silicon carbide (SiC) heating elements cover between the two at temperatures up to 1600°C. Silicon carbide is a ceramic material with relatively high electrical conductivity when compared to other ceramics. The uniqueness of this material is that it has…

Tungsten News
Silicon Carbide Rods Are Used in Various Types of Electric Industrial Furnaces Thanks to its Characteristics 258

As a new type of electric heating element, silicon carbide rods are widely used in various types of electric industrial furnaces. The main composition of this rod is silicon carbide that is an artificial abrasive. Generally, silicon carbide is divided into black silicon carbide and green silicon carbide. The later one owns greater purity. In addition to being used in the abrasive industry, silicon carbide is used in the electrical industry to produce silicon carbide electric heating elements – silicon…

Tungsten News
What Are Strengthening Mechanisms of TZM Alloy 269

TZM is molybdenum’s prime alloy and is an alloy of titanium, zirconium and carbon. This alloy is the most popular materials among various kinds of molybdenum metal and molybdenum alloys. With better high temperature resistance, greater strength, it can be used as a mold for high-temperature heat processing of metals. In addition, to be applied in the hot runner system as nuzzle tip, it can maintain the plastic melting state and helps the formation of plastic products. For the strengthening…

Tungsten News
Fashion Business? From Tungsten Cube To “Land of Hope” 2,688

For many years, I have made the business of non-ferrous metal such as Tungsten, Molybdenum and Rare Earth. What others have done for a long time has become an Expert and/or Professor, but I have become just an old man. So I always think maybe for my business is a very local thing, it’s neither fashionable nor noble. It’s just a livelihood in the eyes of others! Tungsten Cube, Crypto Coin But now, I suddenly feel that the world has…

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How to Choose Sintering Methods for Titanium-Zirconium-Molybdenum (TZM) Alloy? 245

The earliest produced in the industry is titanium-zirconium-molybdenum (TZM) alloy, which is a molybdenum alloy containing 0.4%-0.55% titanium, 0.06%-0.12% zirconium and 0.01%-0.04% carbon. The total amount of alloying element does not exceed 1%. There are two main sintering methods for titanium-zirconium-molybdenum alloy: hydrogen protection sintering and vacuum sintering as following: 1.Hydrogen protection sintering: the product is sintered under the protection of hydrogen. During the process, due to the reduction effect of hydrogen, the oxides in the molybdenum powder will be…

Tungsten News
Pure Tungsten Pins Is Used for Probes and Cathode Emission 220

Tungsten pins, also named tungsten needles or tungsten electrodes, are a typical tungsten product with purity of 99.95%. It has a silver-white appearance, a slender structure, a length of 20mm-1000mm, and a diameter of 0.3mm-10mm. Usually, the product is customized. The pin is mostly made from pure tungsten and sometimes tungsten alloy, with the characteristics of high hardness, greater tensile strength, good wear resistance, excellent ductility, and excellent electrical conductivity. However, if a fine tip is required, it is very…

Tungsten News
3D Printed Collimators for Physical Optics Enables Lower Costs 195

A collimator, a device used to transform the diverging light or other radiation from a point light source into a parallel beam. Special measurements in spectroscopy and in geometric and physical optics require this kind of collimation. The optical collimator consists of a tube. One end of the tube is a convex lens, and the other end is an adjustable aperture. The aperture is located in the focal plane of the lens. The radiation entering the aperture leaves the collimator…

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Cu/Mo/Cu Heat Sink (CMC) for Radio Frequency and Lead Frames 446

High power electronics and circuits generate a lot of heat during operation. The heat sink materials help to eliminate the heat of the chip, transfer it to other media, and maintain the stable operation of the chip. Tungsten-copper and molybdenum-copper alloy are the most common heat sink materials, which are a kind of heat sink substrate commonly used for high airtight packaging such as CPU, IC, solid microwave tube. This material has a thermal expansion coefficient and high thermal conductivity…

Tungsten News
Analysis of Subsequent Support for the Price of Tungsten’s Rising 315

MARKET & PRICE TREND OF TUNGSTEN CHINA, 2021 PART VII of VII Analysis of Subsequent Support for the Price of Tungsten’s Rising Since June this year, the price of tungsten products has continuously increased to about 15%, of which the price of tungsten concentrate has increased from RMB98,000 Yuan per ton to RMB114,000 Yuan per ton, an increase of 16.3%; The price of APT increased from RMB147,000 Yuan per ton to RMB 170,000 Yuan per ton an increase of 15.6%;…

Tungsten News
Weak Position & Breakthrough of China’s Small & Medium-Size Enterprises in Market Game 1,313

MARKET & PRICE TREND OF TUNGSTEN CHINA,2021 PART VI of VII Weak Position & Breakthrough of China’s Small & Medium-Size Enterprises in Market Game Since the first website was built in September 1997, China Tungsten Online has been deeply engaged in the tungsten, molybdenum and rare earth industry. Since 2000, China Tungsten Online has been building and maintaining its website for China Tungsten Association, focusing on the collection, sorting and analysis of China’s and global tungsten and molybdenum market information,…

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