What are In-Mold Riveting Electrical Contacts?
In-Mold Riveting Electrical Contacts manufactured by our direct factory utilize high-speed progressive stamping integrated with automated micro-riveting units to fuse precious metal tips onto base metal springs in a single continuous pass. Designed specifically for R&D electrical engineers developing high-end smart meter latching relays and automotive auxiliary switches, these components ensure low contact resistance and stable thermal dissipation under continuous load. By eliminating secondary manual assembly, our automated production platform delivers consistent mechanical retention force and cost-effective bulk supply for global industrial brands seeking reliable OEM electrical switching components.
Process Advantages and Limitations of In-Mold Riveting
Advantages of High-Speed In-Mold Integration
Punching, bending, and riveting are performed synchronously within a progressive die, eliminating positioning errors; the positional accuracy between the contact tip and the mounting hole center reaches ±0.01 mm.
Mechanical Interlock and Shear Strength
Under controlled tonnage pressure, the cold-headed rivet shank undergoes radial deformation within the base material hole to form a mechanical interlock, resulting in a shear strength exceeding 280 MPa with no thermal damage.
Sensitivity to Harsh, Polluted Environments
Before device encapsulation, unsealed contact surfaces are susceptible to sulfidation if exposed for extended periods to poorly ventilated, corrosive industrial environments.
Innovative Riveting Structures of In-Die Rivet Electrical Contacts
Multi-point Riveting Design
Used for wider static contact terminals to disperse arc impact stress.
Progressive Riveting
Prevents beryllium‑copper substrate micro-cracks during rivet deformation.
Self-locking Riveting Structure
Optimized to resist shear force under vehicle vibration environment.
Typical Application Scope of Silver Contact Riveting Assembly
Smart Meter Latching Relays
Integrated directly into single-phase and three-phase smart electricity meters to handle sustained 100A carry currents and sudden short-circuit magnetic latching impacts.
Automotive Power Window Switches
Installed inside vehicle cabin door control switch modules to withstand over 50,000 cycles of mechanical actuation and sliding electrical make-break friction.
Industrial Auxiliary Control Relays
Employed in DIN-rail-mounted control relays governing industrial motor starter circuits, protecting against high inductive voltage spikes and contact bounce wear.
Home Appliance Power Boards
Built into power distribution boards for washing machine heating elements and compressor controllers requiring stable low-milliohm contact resistance.
contact us
Secure direct factory pricing and custom engineering support for your upcoming relay production cycle with In-Mold Riveting Electrical Contacts. Send your technical drawings and annual volume projections to our engineering team today to receive a comprehensive DFM evaluation and formal quotation within 24 hours.
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