Metallized Alumina Ceramics Relay Parts

Detailed Demonstration: Defining Airtight Standards with Micron-Level Precision

The differentiation of a product, as demonstrated to professional engineering clients, often lies hidden in micron-level details:

Edge Sharpness of the Metallized Layer: Under a microscope, a clear and straight boundary line exists between the metallized and non-metallized areas on the Alumina Metallized Ceramic for Electrical Relay surface. This is thanks to a high-precision screen printing process that ensures solder wets only designated areas, preventing solder overflow onto the arc-extinguishing chamber wall during brazing, which could cause electric field distortion or insulation degradation.

Inner Wall Smoothness and Deburring: The inner wall of the arc-extinguishing chamber undergoes a special polishing treatment, resulting in extremely low roughness. This reduces the adhesion points of the arc on the wall surface, accelerating arc movement and extinguishing. Simultaneously, all orifices undergo rigorous chamfering and deburring treatment to prevent localized electric field concentration that could lead to corona discharge.

Nickel Plating Uniformity and Pinhole Rate: The surface nickel layer exhibits a uniform semi-glossy color, without any visible pinholes or peeling. This thin layer of nickel is not only the medium for welding, but also the last line of defense against the corrosion of the molybdenum layer by trace amounts of moisture inside the contactor, demonstrating the ultimate control over the electroplating process.