Products Description

State contact rivets are core electrical components used in power control devices such as electrical switches, relays, and contactors. They are typically made of silver alloys or silver-based composite materials. They are typically flat, cylindrical, with a flat top to provide a good contact surface and arc suppression performance. These contacts are widely used in new energy vehicles, energy storage systems, rail transit, industrial automation control, household appliances, and other applications that require high electrical stability and durability.

Core Selling Points Analysis

Ultra-flat contact interface, ensuring low-resistance conduction

Precision Grinding Process: CNC surface grinders are used to process the Fixed Silver Contacts, ensuring an ultra-flat, defect-free contact surface. This maximizes contact area and reduces localized heating and energy loss during current flow.
Microtexture Optimization: Electrolytic polishing creates a uniform microtexture, balancing roughness and Stationary Contact stability, and reducing contact resistance fluctuations caused by vibration or micro-displacement.

Diverse Material Adaptation to Meet Specific Scenario Needs

Base Material Performance Grading: Base materials such as copper (high conductivity), copper alloy (high strength), and stainless steel (corrosion resistance) are available based on scenario requirements, adapting to different current and environmental requirements.
Functional Plating Combinations: Options include gold plating (low current, anti-oxidation), silver plating (high current, high conductivity), and nickel plating (wear-resistant). The plating and base material are bonded via diffusion welding to prevent detachment.

Integrated Structural Design Improves Connection Reliability

Cold Forging Process: The head and stem are integrally cold-forged to achieve a metallurgical bond, eliminating the risk of interface fracture and making them suitable for safety-critical applications such as high-voltage electrical equipment.
Optimized Anti-Loosening Structure: The stem features a coarse thread or knurled design, combined with pre-applied anti-loosening adhesive, to prevent vibration-induced loosening and reduce maintenance frequency for Flat Silver Contacts.

Modular Design Adapts to Diverse Assembly Scenarios

Customizable Head Shape: Round, square, and other flat head styles are available to accommodate different Flat Bimetallic Rivet interfaces. For example, a square head maximizes contact area within a limited space.

Optional Tail Structure: Tail designs include press-riveted (for thin plate connections) and threaded (for removable thick plates), accommodating diverse assembly methods and enhancing connection security.

Harsh Environment Tolerance, Extended Maintenance Intervals

Optimized Temperature Resistance: Through material and heat treatment design, the product maintains stability over a wide temperature range of -50°C to 120°C, preventing Electrical Fixed Contacts from loosening in high or low temperature environments.
Enhanced Corrosion Resistance: The surface coating and base material work together to resist corrosion from moisture, salt spray, and industrial exhaust, making it suitable for harsh environments such as coastal areas and chemical plants, extending equipment uptime.

Silver Alloy Raw Material for State Contact Rivet

Full-Process Precision Manufacturing Details

Substrate Pretreatment and Forming	High-purity wire rods are used as raw materials. Spectroscopic analysis is performed to verify purity before storage, eliminating batches with excessive impurities. During the pretreatment phase, low-temperature annealing is performed in a continuous annealing furnace to eliminate internal stresses generated during wire rolling and prevent cracking during cold heading. Cold heading is performed using a multi-station automatic cold heading machine, which progressively shapes the die for Fixed Silver Contact.
Contact Surface Precision Machining	After forming, the rivets enter the CNC grinding workshop, where imported surface grinders grind the heads. The grinding wheel speed and feed rate are precisely controlled by a program to ensure that the surface flatness and roughness meet the required standards. After grinding, ultrasonic cleaning is immediately performed to remove residual grinding debris and coolant. The surface then enters the electrolytic polishing process, where direct current dissolves microscopic surface protrusions, creating a smooth, uniformly textured Static Silver Contact interface.
Plating Process and Quality Control	Pre-plating utilizes a multi-stage cleaning process-alkaline degreasing to remove surface oil, acidic activator treatment to remove the oxide layer, and finally a pure water rinse to ensure surface cleanliness. During the electroplating process, pulsed power technology is employed, controlling the metal ion deposition rate through cyclical current fluctuations, resulting in finer crystals and reduced porosity in the coating for Flat Bimetallic Rivet.

State Contact Rivets Processing Flow Chart

Six Reasons to Choose Us

Precision Processing: No cutting or machining is required throughout the entire process, ensuring ultra-flat and conductive contact interfaces, minimizing energy loss for Flat Silver Contacts.

Material Compatibility: A diverse range of substrate and coating combinations, along with professional selection advice, meet the specific needs of different currents and environments.

Reliable Structure: Integrated cold heading and anti-loosening design resist vibration and temperature fluctuations, extending equipment maintenance cycles.

Flexible Customization: Our modular production system supports full-size customization, enabling rapid response to sample requests and facilitating R&D iterations.

Stable Quality: Automated testing and full lifecycle traceability ensure consistent performance across batches, minimizing assembly issues.

Full-Process Support: Our technical team provides comprehensive support, from selection and testing to after-sales service, to resolve any application challenges for Electrical Fixed Contacts.

why choose our State Contact Rivet