0.025 Np1 Dkrnt 0.025mm ニッケルコバルト合金線 4J29コバル線 精密合金線

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May 28, 2025
Category Connection: Kovarの合金
Brief: Discover the 0.025 Np1 Dkrnt 0.025mm Nickel Cobalt Alloy Wire 4J29 Kovar Wire, a precision alloy wire with a low thermal expansion coefficient. Ideal for electronic packaging, aerospace, and precision instruments, this wire offers excellent heat resistance, fatigue resistance, and corrosion resistance. Perfect for high-precision applications requiring stability and durability.
Related Product Features:
  • Low thermal expansion coefficient (5.1 × 10⁻⁶/°C) matches borosilicate glass and ceramics.
  • High strength and ductility with tensile strength of 450-550 MPa and elongation of 30%-40%.
  • Excellent electrical performance with low resistivity, suitable for high-precision electronic equipment.
  • Good machinability and formability, compatible with turning, milling, and drilling processes.
  • Superior welding performance, suitable for laser welding, electron beam welding, and brazing.
  • Widely used in electronic packaging, aerospace, vacuum electronic devices, and optical instruments.
  • Heat treatment includes solid solution, aging, and annealing for enhanced ductility and processability.
  • Density of 8.36 g/cm³ and melting point of 1449°C, ensuring stability in high-temperature environments.
FAQ:
  • What are the main applications of Kovar 4J29 wire?
    Kovar 4J29 wire is widely used in electronic packaging, aerospace, medical devices, and optical fields due to its low thermal expansion coefficient and excellent mechanical properties.
  • How is Kovar 4J29 wire processed?
    Kovar 4J29 wire can be processed using conventional methods like forging, rolling, and stretching. It also supports high-energy welding techniques such as laser and electron beam welding.
  • What is the heat treatment process for Kovar 4J29 wire?
    The heat treatment includes solid solution treatment at 1000°C-1100°C, aging at 700°C-800°C for 2-3 hours, and annealing at 800°C-1000°C with air cooling to enhance ductility and processability.