Overview of Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire
Tungsten is a metallic element with the element symbol W and atomic number 74. It is located in the VIB group of the sixth period of the periodic table of elements. In nature, tungsten mainly exists in the form of hexavalent cations. Its ionic radius is small, it has strong polarization ability, and it is easy to form complex anions.
When preparing pure tungsten or tungsten alloy, the main methods include powder metallurgy, smelting (including electron beam melting, vacuum melting, plasma beam melting) and chemical vapor deposition.
Feature of Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire
The thermal expansion coefficient of tungsten is very low, only 4.5×10^-6 m/mK, so it has good thermal stability. These properties make tungsten widely used in manufacturing high-temperature components and reliable heat detectors.
(Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire)
Parameters of Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire
Tungsten wire, specifically a 99.95% pure tungsten filament, is commonly used in vacuum coating applications due to its high melting point, stability, and strong resistance to heat erosion. Here are some key parameters for this type of tungsten wire:
1. Material: **99.95% Tungsten** – The wire is made of tungsten with a purity level of 99.95%, ensuring minimal impurities that could affect performance.
2. Composition: **W (Tungsten)** – The chemical element is tungsten, which has the atomic number 74 and symbol W.
3. Melting Point: **3,380°C (6,116°F)** – Tungsten has one of the highest melting points among all metals, making it suitable for high-temperature applications.
4. Density: **19.25 g/cm³** – Tungsten is a dense metal, which contributes to its strength and durability.
5. Hardness: **4.5 Mohs hardness** – It is relatively hard compared to most metals, which helps maintain its shape during use.
6. Electrical Conductivity: **Excellent** – Tungsten is a good conductor of electricity, which is essential for its use as a filament in lighting and other electrical devices.
7. Thermal Conductivity: **Good** – It has moderate thermal conductivity, allowing for efficient heat transfer.
8. Resistant to Oxidation: **High** – Tungsten resists oxidation at high temperatures, which is crucial for vacuum coating where contamination should be minimized.
9. Diameter: **Varies** – Tungsten wire can be available in different diameters, typically ranging from a few micrometers to a few millimeters, depending on the application requirements.
10. Coating Compatibility: **Depends** – Vacuum coating may involve various coating materials, so compatibility between tungsten wire and the chosen coating material is important. It’s essential to choose a compatible coating process.
11. Strength: **High** – Due to its high density and strength, tungsten wire can withstand significant forces without deformation.
12. Durability: **Long** – Tungsten’s resistance to wear and erosion makes it suitable for applications requiring long-term performance.
When purchasing tungsten wire for vacuum coating, it’s important to specify the diameter, length, and any specific requirements for the wire’s finish or surface condition.
(Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire)
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FAQ
Question: What are some common applications for Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire?
Answer: Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire are widely used in cutting tools, drilling tools, high-speed steel, carbide, electrode materials, lighting equipment, aerospace, nuclear industry and other fields.
Question: What is tungsten alloy?
Answer: Tungsten alloy is an alloy composed of tungsten as a base and other elements added. It has the characteristics of high density, high hardness, good corrosion resistance and thermal stability. It is often used to make radiation shielding materials, counterweights, etc.
Question: Why is tungsten filament used in light bulbs?
Answer: Tungsten wire has a high melting point and excellent electrical conductivity, and can maintain stable luminous performance at high temperatures, so it is often used to make filaments for incandescent light bulbs.
Question: What is the role of the tungsten electrode in TIG welding?
Answer: Tungsten electrode is used as an electrode in tungsten argon arc welding. It has high melting point, high thermal conductivity and high electron emission capability. It can stably generate arc and achieve high-quality welding.
Question: What is Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire? What are its uses?
Answer: Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire is a compound composed of tungsten and carbon and has extremely high hardness and wear resistance. It is commonly used in the manufacture of cutting tools, drill bits and wear-resistant parts.
Question: What are the applications of tungsten in aerospace?
Answer: Tungsten and its alloys are used in the aerospace field to manufacture rocket engine nozzles, missile structural components, etc. Because of their high temperature resistance and corrosion resistance, they can withstand extreme working environments.
Question: What is the mining and processing process for Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire?
Answer: Mining of Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire usually involves underground mining or open-pit mining. After the ore is crushed and ground, the tungsten is extracted through chemical or physical methods. The processing process includes steps such as smelting, powder preparation, molding and sintering.
Question: What impact does Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire have on the environment?
Answer: Waste water, waste gas and solid waste may be produced during the mining and processing of Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire, which will have a certain impact on the environment. Therefore, appropriate environmental protection measures need to be taken to reduce pollution.
Question: How to identify the authenticity of tungsten products?
Answer: The authenticity of tungsten products can be identified by observing the appearance of the product, measuring its physical properties (such as density, hardness), and conducting chemical composition analysis. It is recommended to choose formal channels and reputable brands when purchasing.
(Vacuum Coating 99.95% Tungsten Wire Filament Tungsten Wire)
