Tungsten News

Tungsten News
What Is Tungsten Carbide Copper Plate? 125

A tungsten carbide copper plate is a composite material made by sintering tungsten carbide blank plate infiltrate with copper. This results in a flat plate or sheet-like structure that combines the properties of tungsten carbide and copper. Composition: Tungsten Carbide (WC): This is a hard compound consisting of tungsten and carbon. It is known for its exceptional hardness and wear resistance. The percentage of tungsten in the alloy typically ranges from 50% to 70%. Copper (Cu): Copper is a highly…

Tungsten News
Grades and Specifications of Tungsten Carbide Copper 126

Tungsten carbide copper is a refractory tungsten-based composite obtained by the process of pressing, sintering, and infiltrating. The tungsten content ranges from 50% to 70% by weight. This strong material has good mechanical properties and is highly resistant to arc erosion in contact welding. It is mainly used in oil devices to protect the contact from oxidation. CuWC alloys are available in various grades, each with specific properties and compositions designed for different applications. These grades may vary between manufacturers,…

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Silver Tungsten Rod Is Used in Electrical and Electronic Applications 176

A silver tungsten rod is a type of composite material typically composed of silver (Ag) and tungsten (W). It is often used in electrical and electronic applications due to its unique properties. Here are some key characteristics of this material: Electrical Conductivity: Silver is an excellent conductor of electricity, while tungsten has good electrical conductivity. Combining these two materials in a composite rod can yield a material with improved electrical conductivity compared to pure tungsten. Thermal Conductivity: Silver is also…

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What Are the Differences of Barium Tungsten Electrodes and Tungsten Electrodes? 145

Barium tungsten electrodes have unique properties that differentiate them from other types of tungsten electrodes. Here are the key differences as following: Electron Emission Properties: BaW Electrodes: they are known for their excellent electron emission properties. The addition of barium to the tungsten material enhances its electron emission capability, making it efficient in applications requiring controlled electron emission, such as cathode ray tubes (CRTs). Other W Electrodes: Other electrodes, such as pure tungsten or thoriated tungsten, do not have the…

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Barium Tungsten Cathodes Applied in Photography Lamps for High-quality Lighting 130

Barium tungsten cathodes, also known as barium-tungsten electrodes, are a type of electrode used in various electronic devices and equipment. They are indeed used in photography lamps, especially in some types of studio lighting equipment and flash units. Here are some key reasons why they are employed in these applications: High Efficiency: These kinds of cathodes have a high electron emission efficiency, which means they can emit electrons efficiently when heated. This property is crucial for generating the intense light…

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Why Can Barium Tungsten Cathodes Be Used in Signal Lights? 112

Barium tungsten cathodes are used in signal lights, specifically in electron tubes and cathode-ray tubes (CRTs), for several reasons: High Electron Emission Efficiency: These cathodes have a high electron emission efficiency, which means they can efficiently emit electrons when heated. This property is essential for electron tubes, where the cathode’s ability to emit electrons determines the device’s performance. Stability: BaW cathodes provide stable and consistent electron emission over time. This stability is crucial for these lights, where a reliable and…

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Tungsten Copper Rods Are Used as Electrodes in Resistance Welding Applications 101

Tungsten copper rods are commonly used as electrodes in resistance welding applications due to their excellent electrical and thermal conductivity, as well as their resistance to wear and deformation. Here’s how tungsten copper rods are used as electrodes for resistance welding: Material Composition: Tungsten copper is a composite material consisting of a matrix of copper (Cu) and finely dispersed tungsten (W) particles. The percentage of tungsten can vary, typically ranging from 10% to 50%. The choice of composition depends on…

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Barium Tungsten Cathodes Ensure the Performance of Laser Flash Lamps 120

Barium tungsten cathodes are indeed used in various applications, including laser flash lamps. These lamps are often employed in optical pumping systems for solid-state lasers, such as ruby lasers and neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers. Here’s how these cathodes are used in laser flash lamps: Lamp Construction: Laser flash lamp consists of a tube filled with a xenon or krypton gas mixture. The cathode is one of the key components within this lamp. Electron Emission: When electrical current is…

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How to store Barium Tungsten Cathode? 107

The barium tungsten cathode is composed of a porous substrate and nitrate barium evenly filled in it. The BaO component in the nitrate barium easily absorbs moisture and other impurities. In order to ensure the effectiveness of barium tungsten products, it is required not to be exposed to the atmosphere for more than 48 hours before use, and moisture, dust and other pollutants must be prevented from contacting the products to the greatest extent. To ensure the best performance, it…

Tungsten News
Barium Tungsten Cathode for Xenon Flash Lamp 147

Barium tungsten cathode is a common cathode material in xenon flash lamp that is a device that uses the discharge of xenon to generate intense light flashes. It is widely used in photographic flash lamps, laser systems, high-speed photography, medical equipment, xenon lasers and other fields. In a xenon flash lamp, the BaW cathode acts as the electron generator. When xenon discharges, the generated electron flow will hit the cathode, which will excite the tungsten in the BaW cathode to…

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