Detailed Product Description
Main material: Ceramic parts: ≥93.5% Al2O3 Glaze: color white or pink, T≥1,450° Flange: TU1 (OFHC Cu) or Ni42Fe58 alloy Copper contact: TU1 (OFHC Cu) Solder: Ag72Cu28 alloy Gate tube: TU1 (OFHC Cu) or Ni42Fe58 alloy Technical specifications The all products can reach to the below standards Leak rate: ≤1 x 10-8 bar cm3/sec with helium Flatness of copper surface: ≤0.008mm Parallelism between copper surfaces: ≤0.03mm Concentricity between flange and copper: ≤0.5mm Pull test: ≥5kN/cm2 Temperature cycling: -65° - 200°, 5 circles Nickel plating thickness: 2-7μm
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