On February 26, the 25th China Electrical Appliance Culture Festival & Electrical Products Expo officially kicked off at the Yueqing Convention and Exhibition Center. Under the theme "Smart IoT · Perceiving the Future", this edition focuses on the high-end, intelligent and green transformation of the electrical industry, showcasing cutting-edge technological breakthroughs and application achievements across the entire industrial chain, and building a core platform for technical exchanges, industrial chain collaboration and business docking.
After 25 years of development, Yueqing has evolved from a traditional electrical processing hub into a national advanced manufacturing cluster, with a complete electrical industrial chain supporting over 85% of supporting parts. Its low-voltage electrical products hold a significant share in the domestic market, making it a benchmark for the transformation and upgrading of China's private economy and manufacturing sector. The exhibition features more than 1,000 standard booths, with specialized zones including new power systems, intelligent manufacturing and green energy. It innovatively adopts an integrated model of "Exhibition Zones + Forums + Factories + Cultural Tourism", presenting the latest progress of the electrical industry in AI empowerment, IoT integration and new energy adaptation, attracting in-depth participation of industrial chain practitioners and purchasers worldwide.
At the exhibition, intelligent power distribution systems, new energy electrical supporting products and industrial automation solutions became the center of attention. With the deep advancement of the new round of scientific and technological revolution and industrial transformation, the electrical industry is rapidly expanding into intelligent medium- and high-voltage equipment, complete sets of equipment and new energy applications, while deeply integrating with emerging sectors such as low-altitude economy and humanoid robots, spawning numerous new scenarios and demands. Against this trend, the performance limits of core devices including low-voltage electrical switches, relays, contactors and circuit breakers, keep being broken, raising higher requirements for the reliability, stability and adaptability of core components. Among them, Silver contacts for Relay, as the key functional component for current switching and signal transmission in electrical equipment-directly determines the on-off efficiency, arc resistance and service life of the whole device, becoming one of the core topics in the industrial chain supporting sectors at this exhibition.
According to the technical trends revealed at the fair, Silver contacts for Relays are developing toward material compounding, precision processing and customized performance. In terms of materials, composite silver-based materials such as silver tin oxide, silver nickel and silver graphite have become mainstream choices for high-end applications including new energy vehicle relays, industrial contactors and intelligent circuit breakers, thanks to their excellent arc erosion resistance, low contact resistance and high wear resistance. In terms of processes, the application of precision stamping, vacuum welding and laser micromachining has continuously improved component dimensional accuracy, bonding strength and surface quality, enabling adaptation to harsh conditions such as high-frequency switching, high-current loads and extreme temperatures and humidity. At the forum, many industry experts pointed out that electrical equipment in the smart IoT era has unprecedented requirements for consistency, stability and long service life, especially in high-voltage systems for new energy vehicles, smart grid load switches and industrial PLC control modules, where performance directly affects the safety and reliable operation of terminal systems.
In his opening speech, a responsible official from Yueqing stated that the city will continue to drive the transformation and upgrading of the electrical industry through digital and intelligent empowerment, deepen the cross-border integration of "Electrical +", and accelerate the development toward a world-class electrical industrial cluster. Leveraging achievements such as the AI-enabled manufacturing pilot and digital reform of industrial chain collaboration, Yueqing is promoting collaborative innovation between core component manufacturers and complete machine enterprises, integrating the whole chain from material R&D and process optimization to application verification, injecting new momentum into the high-quality development of the electrical industry. Before the opening ceremony, guests visited the exhibition hall, focusing on innovative achievements in core components, intelligent equipment and system solutions, and spoke highly of the synergistic development of the industrial chain.
Hosted by the China Electrical Equipment Industry Association and Zhejiang Electrical Industry Association, the 25th China Electrical Appliance Culture Festival & Electrical Products Expo runs for three days until February 28. The event not only delivers the latest technical trends and market demands to the industry but also builds consensus on industrial chain collaborative innovation, laying a solid foundation for the high-quality development of China's electrical industry in the smart IoT era.
Based on the core application scenarios such as smart IoT and new energy electrical equipment presented at the exhibition, as well as the industry's demand for high-performance and high-reliability core conductive components, Xiamen Anbolong Electric Co., Ltd. focuses on the R&D and manufacturing of Silver contacts for Relay products, forming a complete portfolio covering rivet-type, welding-type, riveted components and welded components. The company also provides customized services for contacts of special materials such as tungsten contacts, according to customer requirements.
Targeting core application scenarios including high-voltage relays for new energy vehicles, industrial high-current contactors and smart grid circuit breakers, the company has carried out comprehensive engineering optimization for related products:
- Material selection: Adopting eco-friendly composite silver-based materials such as silver tin oxide (AgSnO₂) and silver nickel (AgNi), balancing high electrical conductivity and arc erosion resistance, and complying with international environmental standards including RoHS.
- Structural design: Optimizing cross-section and riveting/welding structures to ensure uniform current distribution, lower contact resistance, and enhance bonding strength with contact bridges, preventing detachment failure under high-frequency switching.
- Process control: Introducing precision stamping dies and vacuum brazing technology, controlling thickness tolerance within ±0.01mm and precisely maintaining welding penetration at the optimal range of 30%–50%, effectively suppressing excessive growth of intermetallic compounds and ensuring product consistency and stability.
- Surface treatment: Applying electrolytic polishing and anti-oxidation treatment to limit contact resistance fluctuation within ±5%, improving adaptability to harsh environments such as high humidity and corrosion.
With a strict quality control system, the company's products have passed a series of rigorous tests including salt spray test, high-low temperature cycle test and electrical endurance test of over 100,000 operations. They can operate in a wide temperature range from -40℃ to 85℃ and withstand vibration up to 10G acceleration, perfectly matching the high-performance requirements of low-voltage electrical equipment in the smart IoT era. At present, Silver contacts for Relays are widely used in low-voltage electrical switches, relays, contactors, circuit breakers and other fields, providing highly reliable core components supporting services for complete machine manufacturers. For more details on specifications, applicable working conditions and customized solutions, please click the link below for professional consultation.
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