Electric & Telecom

In relays, sensors, encapsulated devices and feed through assemblies, thermal expansion is most prone to leads problems with equipment, not the insufficient mechanical strength. If the coefficient of thermal expansion of metal material doesn’t match the accompanying glass or ceramic part, repeated thermal cycling will lead to progressive accumulation of stress, ultimately resulting in cracks and leaks. So when you choose the material grade, controlled expansion alloys such as 4J29(Kovar), 4J36(Invar 36) and 4J42 are often the most suitable choices for meeting your equipment’s requirements. SparkX provides professional products based on these parts include wires, strips, rods and precision profiles for these applications. These materials are engineered to strictly maintain their dimensional tolerances and surface cleanliness throughout subsequent stamping, forming and encapsulation processes. For encapsulated parts, a stable finish and consistent thermal expansion characteristics are more important than mechanical strength. If the encapsulation seal fails, then the whole assembly loses its stability.

Antenna parts, cabinet hardware, clamps, springs these parts are typically not the key point parts, however they are always the first failing parts. These parts always exposed to harsh environments such as high humidity, salt spray corrosion and galvanic corrosion a long time. For these environments, the alloys used for spring is an excellent choice, such as 3J21 and 3J09. SparkX provide precision wire for manufacturing spring and clips, bar stock for machining connectors and cold finished profiles with customized cross sections, all of these materials with excellent straightness stability, a clean surface finish and highly repeatable forming characteristics. In electric and telecom, the service life of the equipment always depends on the performance of its smallest spring, clips or fasteners.