Yongtong New Material Building the Future Together
Reactor
The advantages of copper-aluminum composite materials in the reactor industry primarily lie in addressing copper-aluminum connection corrosion issues, optimizing the balance between performance and cost, and enhancing equipment reliability—details are as follows:
1. Address the electrochemical corrosion issue in direct copper-aluminum connections to enhance equipment reliability.
When the reactor's aluminum terminals are directly connected to copper cables/busbars, a galvanic cell can easily form due to the potential difference, leading to aluminum corrosion (producing Al₂O₃), increased contact resistance, and subsequently causing overheating, burnout—or even fire—at the connection point. In contrast, copper-aluminum composite materials prevent direct contact between copper and aluminum by creating a metallurgically sound transition interface between the aluminum and copper layers. This fundamental solution effectively eliminates chemical corrosion, significantly extending the service life of the equipment.
2. Leveraging the combined advantages of copper and aluminum, optimize the core performance indicators of the reactor.
- Conductivity: Copper boasts an electrical conductivity approximately 1.6 times higher than aluminum (58.7 MS/m vs. 37.7 MS/m for aluminum). The composite material retains copper’s superior conductivity, helping to reduce the reactor’s resistance and energy losses, thereby enhancing overall power transmission efficiency.
- Thermal Performance: Copper boasts a higher thermal conductivity (approximately 401 W/(m·K)) compared to aluminum (about 237 W/(m·K)). This composite material effectively dissipates the heat generated during reactor operation, reducing temperature rise and enhancing the equipment's durability.
- Mechanical Strength: Copper boasts a tensile strength (approximately 200–250 MPa), which is higher than aluminum's (around 70–120 MPa). Additionally, the use of composite materials enhances the mechanical strength of reactor coils or connecting components, thereby reducing the risk of deformation or fracture caused by electromagnetic stress or impact.
3. Reducing material costs aligns with the "aluminum for copper" strategy.
Copper-aluminum composite materials, designed with a structure featuring "two layers of copper at the contact points and aluminum in the middle," allow for a roughly 40% reduction in copper usage while maintaining copper's critical properties, resulting in cost reductions of about 35%. This innovative approach effectively helps ease the growing imbalance between copper supply and demand.
4. Lightweight design, tailored for diverse application scenarios
Aluminum has a density of about 2.7 g/cm³, which is only one-third that of copper. Additionally, the overall weight of the composite material is reduced by approximately 50% compared to pure copper, making it ideal for applications in weight-sensitive environments such as aerospace, rail transportation, and renewable energy generation systems like photovoltaic inverters and wind power converters—without compromising its excellent electrical conductivity or thermal management capabilities.
5. Corrosion Resistance and Long Lifespan
The copper layer on the outer composite material exhibits excellent corrosion resistance—particularly in humid and corrosive environments—while the inner aluminum layer forms a protective oxide film, further enhancing the overall corrosion performance. Compared to pure aluminum reactors, the composite material requires less frequent maintenance and boasts a significantly longer service life.
Our company’s copper-aluminum composite material addresses the critical challenge of copper-aluminum bonding through an innovative interfacial transition design. At the same time, it combines copper’s exceptional conductivity, thermal performance, and strength with aluminum’s lightweight and cost-effectiveness—making it the ideal material for reactors in the industry, balancing both performance and affordability. This material is particularly well-suited for manufacturing reactors used in applications such as inverters, new-energy power generation, and transmission and distribution systems.
Reactor 01
Reactor 02
Reactor 03
Mobile phone/WeChat:
Leave a Message
Leave a message online to obtain a free product quotation
Copyright © Henan Yongtong Composite New Material Technology Co., Ltd.
Powered by www.300.cn Supports IPV6 Privacy Agreement