High-Performance Electrical Contact Rivet Solutions: Brass Stamping and Reliability Design

Electrical Contact Rivets with Brass Stamping are composite electrical connection components manufactured through precision cold heading and stamping processes. Their core structure consists of an electrical contact material (usually a silver or silver alloy disc) serving as the working medium, firmly bonded to a brass rivet base as a supporting and connecting component, forming a non-removable whole during the forming process.

Electrical Contact Section of the Electrical Contact Riveted Brass: Responsible for the core function of connecting and disconnecting circuits, requiring materials with extremely low contact resistance, high electrical conductivity, excellent resistance to arc erosion, and environmental corrosion resistance. Commonly used materials include pure silver, cadmium silver oxide, tin silver oxide, and nickel silver.

Brass Rivet Base Section of the Brass Stamping Electrical Silver Contact: Primarily functions to provide mechanical support, facilitate installation and fixation, and conduct current. Brass (copper-zinc alloy) is the preferred material for this application due to its good electrical conductivity, excellent plastic deformation capacity, moderate strength, and relatively low cost.

Precision cold heading of the brass rivet body: Brass wire is fed into a multi-station cold heading machine. Through a series of die punching, extrusion, and deformation, the rivet shank, flange (if any), and pre-designed contact material inlay grooves or mating surfaces are initially formed. The cold heading process ensures high production efficiency and consistent mechanical properties of the rivet base of the Silver Bimetal Contacts With Brass Stamping.

Contact material preparation and placement: A Silver or silver alloy strip is precision stamped into contact discs of specified dimensions. In automated production, these contact discs are precisely placed on the mating surfaces of the Bimetal Electrical Contacts Rivets with Brass body.

Cold pressing bonding: At room temperature, the contact material is pressed into the pre-reserved cavity groove of the brass base under immense pressure. Mechanical interlocking and preliminary metallurgical bonding are achieved through the plastic deformation of the metal and the interaction forces between atoms. Hot forging or welding: For applications with higher performance requirements, pressing under heating conditions or high-frequency heating and resistance welding are used at the bonding surface to allow localized diffusion or melting of the two materials at the interface, forming a stronger metallurgical bond and ensuring that the rivets will not detach during use.

Subsequent finishing and processing: The Electrical Contact Riveted Brass may require precision turning to ensure the accuracy of the contact spherical radius and overall dimensions. Finally, surface treatments such as cleaning and passivation are performed to remove oil and prevent oxidation of the brass components, ensuring product cleanliness and weldability.

Excellent cost-effectiveness: Using precious metals only in critical electrical contact areas of the Brass Stamping Electrical Silver Contact, while using inexpensive brass in the support structure, greatly reduces raw material costs and achieves an optimal balance between performance and cost.

Reliable Mechanical Bonding: The bonding interface formed through cold forging and pressing processes is extremely robust, capable of withstanding the frequent impacts and vibrations generated during relay and switch operation, avoiding the risk of Silver Bimetal Contacts With Brass Stamping loosening or detachment during use.

Excellent Electrical and Thermal Conductivity: Brass itself is a good conductor, providing a low-resistance path for current while effectively dissipating Joule heat and arc heat generated on the contact surface. This helps reduce contact temperature rise, improving current-carrying capacity and lifespan.

Wide Applications and Facilitates Automated Installation: Its standardized Electrical Contact Rivets with Brass Stamping structure is ideal for automated assembly lines, allowing for quick and reliable fixing to contact bridges or springs using high-speed riveting machines. Therefore, it is widely used in low-voltage electrical appliances, automotive electrical appliances, household appliances, and control units in various instruments and meters.