Tungsten

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Characteristics of Tungsten Alloy Discs 22

As a high-performance alloy material, tungsten alloy discs demonstrate significant application value across multiple advanced fields due to their unique physical and chemical properties. Their characteristics can be analyzed in depth from dimensions such as material essence, performance advantages, and application adaptability. From a material composition perspective, tungsten alloy discs use tungsten as the base, processed through the addition and melting of metal elements like nickel, iron, and copper. This multi-component composite structure retains tungsten’s core advantages while mitigating the…

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Tungsten Alloy Bar 20

Mentioning tungsten alloy bar often conjures images of heavy industrial equipment or cold mechanical parts. However, this material, formed by fusing tungsten with other metal elements, harbors many “hidden talents” that defy conventional understanding. Its presence has quietly permeated fields ranging from deep-sea exploration to precision instruments, serving as an unsung hero behind technological breakthroughs. I. The “Genetic Code” of Tungsten Alloy Bar The unique performance of tungsten alloy bars stems from their meticulously designed composition ratios. Unlike simple material…

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Tungsten Alloy Discs 16

The name “tungsten alloy disc” intuitively reflects its shape and material. Simply put, it is a disc made primarily of tungsten, combined with other metal elements such as nickel and iron through specific processes. In the field of materials science, this combination is not arbitrary but is deliberately designed to meet the demands of various complex application scenarios. Tungsten, as a metal, boasts numerous remarkable properties. With a melting point as high as 3,410°C, tungsten alloy discs exhibit exceptional high-temperature…

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Why Tungsten Carbide Powder is an Ideal Tool Material? 18

Tungsten carbide powder (WC powder) is a compound composed of the refractory metal tungsten and non-metallic carbon, featuring high density, high melting point, high strength, high hardness, heat resistance, corrosion resistance, wear resistance, and good electrical and thermal conductivity. These properties make it an ideal material for hard alloy tools. However, due to the high brittleness and poor toughness of pure WC powder, it is common to add appropriate amounts of binders such as cobalt (Co), nickel (Ni), chromium (Cr),…

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Differences Between Thorium-Tungsten and Cerium-Tungsten Electrodes 30

Although both thorium-tungsten and cerium-tungsten electrodes are primarily made from metal tungsten and cerium-tungsten can often substitute for thorium-tungsten, differences in their dopants lead to variations in appearance, performance, production processes, and applications. 1. Definition Thorium-tungsten refers to an electrode product with a chemical composition mainly consisting of tungsten and thorium oxide, designated as WT20, marked with a red color code. Its diameter ranges from 1.0 to 12.0 mm, with lengths of 150 mm or 175 mm. Cerium-tungsten is an…

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Thorium-Tungsten Electrode 25

Like cerium-tungsten, lanthanum-tungsten, zirconium-tungsten, and yttrium-tungsten electrodes, the thorium-tungsten electrode is a product made by doping metal tungsten with the corresponding oxide. Though it was the earliest used and remains the best-performing tungsten electrode for welding to date, its strong radioactivity has led to its gradual replacement by rare earth tungsten electrodes. Below is an introduction to the basic information about thorium-tungsten electrodes. 1. Definition Known as Thoriated Tungsten Electrode in English, it is a tungsten electrode containing 1-1.2% thorium…

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Tungsten-Rhenium Alloy 22

Like tungsten-copper, tungsten-molybdenum, and tungsten-nickel-iron alloys, tungsten-rhenium alloy (W-Re) is a type of high-density tungsten-based alloy that combines the excellent properties of both metal tungsten and metal rhenium. It is widely used in aerospace, aviation, maritime, military, and defense fields. Below is the basic information about this alloy: 1. Definition It is a solid-solution-strengthened alloy material made using powder metallurgy or melting methods, with refractory metal tungsten as the hard phase and metal rhenium as the binder phase. Generally, the…

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Steel-Bonded Hard Alloy 19

As a type of hard alloy, steel-bonded hard alloy combines the excellent properties of hard compounds and steel, primarily used in the manufacturing of wear-resistant parts and machine components. Below is an introduction to the basic information about this alloy material. 1. Definition It is an alloy material with refractory metal hard compounds as the hard phase and steel as the binder phase. Generally, the proportion of hard compounds ranges from 30% to 50%, with the remainder consisting of a…

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Tungsten Alloy Shielding Component 12

Compared to traditional shielding materials such as iron, lead, and cement, tungsten alloy shielding components offer superior overall performance. For instance, under the same thickness and working conditions, tungsten alloy shielding materials provide better or longer-lasting shielding effectiveness and service life than traditional materials. Moreover, it is a non-toxic, environmentally friendly, and non-radioactive material, thus posing no secondary harm to the ecosystem. Below is an introduction to the basic information about these alloy shielding components. 1. Definition It is both…

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Reason for Adding Rare Earth Oxides to Tungsten Electrodes 8

Metal tungsten, due to its high melting point, strong electron emission capability, and low vapor pressure, has become the preferred choice for thermionic emission materials. However, its high electron work function, elevated electrode tip temperature, and tendency for grain growth lead to unstable arc beams, difficult arc initiation, and a short service life in pure tungsten electrodes, limiting their use to alternating current welding. To overcome these drawbacks, manufacturers often add rare earth oxides with low electron work functions, such…

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