Monometal Contact Rivet
Products Description
Unlike common bimetallic or composite contacts, Monometal Contact Rivets are characterized by their high degree of material uniformity:
The contact head, working surface, and internal structure are all made of the same silver alloy.
There is no composite layer, eliminating the risk of interface diffusion.
The current path is continuous and uniform.
The contact resistance distribution is stable and highly controllable.
This structural form is widely used in high-end relays and industrial control switching contacts, and is particularly suitable for applications with stringent requirements for signal integrity, current stability, and operational consistency.
Optional Material Systems and Positioning Description
The AgCdO Solid Silver Contact Rivets can be manufactured using one of the following silver-based alloys depending on the operating conditions:
99.99% Pure Ag: Extreme conductivity, suitable for applications highly sensitive to resistance and signal loss
AgNi10: Balances conductivity and weld resistance, suitable for medium- to high-load relays
AgSnO(10): Excellent resistance to arc erosion, suitable for frequent switching conditions
AgSnO₂In₂O₃(12): Preferred solution for high reliability and environmental protection requirements
AgCdO(10): Mature performance in traditional high-load applications, suitable for specific industrial standard systems
Through differentiated configurations of material systems, Electrical Silver Solid Contacts for Switches can achieve precise matching under different current levels, load types, and lifespan requirements.
Core Processing Flow
Cold Heading
A high-precision cold heading machine is used to press the blanked silver alloy billet into the Solid Silver contacts for electrical prototype, ensuring a dense and defect-free structure.
01
Precision Turning
CNC lathes are used to machine the Alloy Silver Contact end faces, chamfers, and mounting areas, controlling dimensional tolerances and surface finish to meet assembly requirements.
02
Surface Cleaning
Ultrasonic cleaning removes oil stains, vacuum degassing removes internal air bubbles, and inert gas protection prevents oxidation.
03
Structural Optimization
According to design requirements, the Solid Silver contacts for electrical end faces (arc/flat), mounting grooves, and other structures are machined to ensure compatibility with the equipment.
04
Inspection and Packaging
Products are inspected using contact resistance testers, dimensional measuring instruments, and life testing machines. Qualified products are vacuum-packed (to prevent oxidation) and labeled with material, specifications, and batch information for easy traceability and inventory management.
05
Design Advantages: The Beauty of Pure Form in Engineering
Interfaceless Thermal Management
Because the entire structure is made of a single material, the heat generated by the electric arc can be instantly and evenly conducted to the Solid Silver Contact Rivet and the riveted support, avoiding localized overheating caused by interfacial thermal resistance and effectively reducing the risk of material fusion welding.
Homogeneous Arc Erosion
The arc erosion of the material is uniform, without surface unevenness caused by preferential erosion of a particular phase. This ensures that the contact maintains a smooth Solid Ag Contact surface throughout its lifespan, thus maintaining low and stable contact resistance.
Structural Integrity After Riveting
During the riveting process, the overall plastic deformation is more uniform, preventing head cracking or weak riveting due to material differences. This ensures a strong mechanical connection and good heat conduction path between the contact and the support.
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