Tungsten Filament Evaporation Coils for Vacuum Metallization
Product Description
Tungsten evaporation filaments are mainly used in vacuum metallization processes. Vacuum metallization is a process that forms a metal film on a substrate, coating a metal (such as aluminum) onto a non-metallic substrate by thermal evaporation.
Tungsten has the characteristics of high melting point, high resistivity, good strength, and low vapor pressure, making it an ideal material for making evaporation sources.
Tungsten evaporation coils are made of single or multiple strands of tungsten wire and can be bent into various shapes according to your installation or evaporation needs. We provide you with a variety of tungsten strand solutions, welcome to contact us for preferential quotes.
What are the advantages of Tungsten Evaporation Filaments?
✔ High Melting Point
✔ Excellent Thermal Stability
✔ Good Electron Emission
✔ Chemical Inertness
✔ High Electrical Conductivity
✔ Mechanical Strength
✔ Low Vapor Pressure
✔ Broad Compatibility
✔ Long Lifespan
Applications
• Vacuum metallization: Used for surface metallization of plastic and metal substrates (such as automotive trim parts), achieving uniform coating through high-temperature metal evaporation.
• Semiconductor and vacuum devices: Directly used as heating elements in semiconductor manufacturing or vacuum electronic equipment (such as electron tube cathodes), providing a high-temperature environment.
Specifications
| Product Name | Tungsten evaporation filament |
| Purity | W≥99.95% |
| Density | 19.3g/cm³ |
| Melting Point | 3410°C |
| Number of Strands | 2/3/4 |
| Wire Diameter | 0.6-1.0mm |
| Shape | Customized according to drawings |
| MOQ | 3Kg |
| Note: Special shapes of tungsten filaments can be customized according to your needs. | |
Tungsten Filaments Drawings
The drawing only shows straight and U-shaped filaments, allowing you to customize other types and sizes of tungsten spiral filaments, including peak-shaped filaments, etc.
| Shape | Straight, U-Shape, Customized |
| Number of Strands | 1, 2, 3, 4 |
| Coils | 4, 6, 8, 10 |
| Diameter of Wires(mm) | φ0.6-φ1.0 |
| Length of Coils | L1 |
| Length | L2 |
| ID of Coils | D |
| Note: other specifications and filament shapes can be customized. | |
We can provide various forms of tungsten thermal filaments. Please check our catalog to learn about the products, and welcome to consult us.
