[Know Tungsten] The Performance of U-shaped EB Tungsten Filament
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- Published on Wednesday, 09 July 2025 17:23
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The U-shaped EB tungsten filament is a high-purity tungsten wire heating element bent into a U shape, widely used in electron beam evaporation coating equipment.
Its compact structure and easy installation offer excellent high-temperature strength, corrosion resistance, and superior electron emission performance, making it suitable for long-term stable operation in high vacuum and high-temperature environments. The U-shaped design helps focus the electron beam, enhancing heating efficiency and evaporation uniformity. It is extensively applied in optical coatings, semiconductor manufacturing, and metal thin film deposition, serving as a critical component in vacuum thermal evaporation processes.
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