Tungsten News

Tungsten News
USTR Increases Tariffs Under Section 301 on Tungsten Products, Concluding the Statutory Four-Year Review 45

December 11, 2024 WASHINGTON – The Office of the United States Trade Representative (USTR) today announced tariff increases under Section 301 for imports from the People’s Republic of China of certain tungsten products, wafers, and polysilicon. The rates for solar wafers and polysilicon will increase to 50 percent, and the rates for certain tungsten products will increase to 25 percent. These tariff increases will take effect on January 1, 2025. “The tariff increases announced today will further blunt the harmful…

Tungsten News
【Know Tungsten】Enhancing TIG Welding Performance with WL20 Lanthanum Tungsten Electrodes 45

The WL20 lanthanum tungsten electrode is a tungsten-based alloy electrode material that contains approximately 2% lanthanum. During TIG welding, the lanthanum tungsten electrode maintains a very stable arc, reducing arc fluctuations and deviations, which ensures higher precision and stability during the welding process. Compared to pure tungsten electrodes, the lanthanum tungsten electrodes exhibit better arc stability and welding quality. The addition of lanthanum helps to reduce electrode wear at high temperatures, especially in high-current welding, effectively extending the electrode’s lifespan,…

Tungsten News
【Know Tungsten】Why Tungsten Carbide Copper Rod Is Ideal for Precision Instruments? 39

The 70WC30Cu tungsten carbide copper rod is a composite material typically composed of 70% tungsten carbide and 30% copper. Due to the unique combination of tungsten carbide and copper, this material possesses exceptional physical and chemical properties. Tungsten carbide copper materials are widely used in industrial fields that require high hardness and excellent wear resistance, including electrodes and electrical contact materials, cutting tools and molds, as well as precision instruments and equipment.

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【Know Tungsten】Advantages of Tungsten Alloy Dart Billets: Precision and Durability 33

Tungsten alloy dart billets are produced using a powder metallurgy process, combining materials such as tungsten, nickel, iron, and copper. These dart billets are known for their advantages such as high density, corrosion resistance, moderate hardness, and excellent wear resistance. As a result, darts made with tungsten alloy billets are more compact, experience less air resistance, and are easier to control, improving accuracy and increasing the likelihood of hitting the target area. Due to their outstanding physical and chemical properties,…

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Molybdenum Substrates: A Key Pillar in Advancing Semiconductor Technology 74

Molybdenum substrates have become integral components in the semiconductor industry due to their superior physical properties and high thermal stability. Molybdenum, a transition metal known for its strength, thermal conductivity, and resistance to corrosion, plays a crucial role in various semiconductor manufacturing processes, particularly in the creation of advanced electronic devices. One of the key applications of moly substrates is in the production of power semiconductors. Power semiconductors are essential in controlling and converting electrical power in devices such as…

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The Role of Molybdenum Substrates in the Thin Film Deposition Industry 73

Molybdenum substrates have become a vital material in the thin film deposition industry due to their outstanding physical properties, which make them ideal for a range of applications, including semiconductor devices, solar cells, and coatings. Thin film deposition is a process used to deposit thin layers of material onto a substrate, and molybdenum plays a critical role in this process, particularly in industries where precision and durability are paramount. One of the key benefits of using moly substrates in thin…

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How Does Manufacturing Process of Strand Tungsten Filaments Impact Their Properties? 73

The manufacturing process of strand tungsten filaments involves several key steps, each of which significantly influences the filament’s final properties, such as its strength, conductivity, and heat resistance. Below is a typical process for manufacturing tungsten filaments and how each stage impacts the properties of the filaments: 1. Tungsten Powder Production The first step in the process involves producing tungsten powder, which serves as the raw material for filament production. Tungsten is typically extracted from ores such as scheelite (CaWO?)…

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What Factors Contribute to the Durability and Longevity of Strand Tungsten Filaments? 69

The durability and longevity of strand tungsten filaments in high-temperature environments are influenced by several key factors that determine their ability to withstand extreme heat, mechanical stress, and chemical reactions. Below are the primary factors that contribute to the performance and lifespan of tungsten filaments in such conditions: 1. High Melting Point of Tungsten Tungsten has one of the highest melting points of any metal, at 3422°C (6192°F). This intrinsic property makes tungsten filaments exceptionally durable at high temperatures. In…

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What Are the Applications of Strand Tungsten Filaments in Modern Technology? 126

Strand tungsten filaments are critical components in various high-temperature and precision applications in modern technology. Due to tungsten’s exceptional physical properties, such as its high melting point (over 3,400°C or 6,150°F), low vapor pressure, and resistance to oxidation, strand tungsten filaments are used in a wide range of industries. Below are some of the primary applications: 1. Incandescent Light Bulbs The most common use of tungsten filaments is in incandescent light bulbs. When electricity passes through the filament, it heats…

Tungsten News
Strand Tungsten Filament: A Key Component in High-Temperature Applications 96

A strand tungsten filament is a thin, flexible wire made from tungsten, a chemical element known for its exceptional strength, high melting point, and resistance to heat. Tungsten, with an atomic number of 74, has the highest melting point of any metal—over 3,400°C (6,150°F)—making it ideal for use in applications where high temperatures are encountered. The “strand” refers to the specific form of the tungsten filament, which is typically a fine wire made by drawing tungsten through a series of…

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