As environmental rules like WEEE and RoHS become stricter, manufacturers replace traditional silver cadmium oxide (AgCdO) materials. Silver zinc oxide (AgZnO) materials are the best option for new, eco-friendly electrical contacts. They perform exceptionally well.
So, what are the advantages of silver zinc oxide material? How does it perform in
rivet contacts?
Why Choose Silver Zinc Oxide?
Silver zinc oxide is a new, eco-friendly material. Engineers often use it in low-voltage switchgear for medium current conditions. This is because it has high thermal stability and good anti-melting properties. Its main advantages include:
1. Environmental friendliness: This product follows the RoHS rule of the European Union. It avoids using cadmium, which is bad for the environment.
2. High thermal stability: Works well in high temperatures and strong arc conditions, which helps electrical contacts last longer.
3. Excellent electrical properties: Low and stable contact resistance, suitable for equipment with frequent on-off operations.
How Does the New Process Optimise Silver Zinc Oxide Contact Materials?
Traditional manufacturing processes for silver zinc oxide include internal alloy oxidation and powder metallurgy, but each has its shortcomings. Researchers at Fudar Alloy have proposed a new manufacturing method.
This method aims to enhance material properties. It also combines the advantages of two existing processes. This method includes these key steps:
1. Powder preparation and treatment: A new method is used. This method ensures that the silver matrix evenly distributes zinc oxide particles.
2. Isostatic pressing and sintering extrusion: Processing under high temperature and high-pressure conditions to enhance the material's densities and mechanical properties.
3. Drawing and forming: The final product is made into silver zinc oxide wire. This ensures that it has the right size and that you organize it evenly.
Performance Analyzing of Materials Produced by the New Process
Experiments show that the silver zinc oxide material made by the new process meets or exceeds international standards. It has similar mechanical and electrical properties to other products.
1. Mechanical properties
- Density and hardness are comparable with similar international products.
- The elongation is up to 20%, the tensile strength is up to 295~340 MPa, and it has excellent processability.
2. Metallographic organisation
- Zinc oxide particles are evenly distributed without agglomeration.
3. Electrical properties
- Low contact resistance, low burnout, and excellent anti-melt welding resistance.
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In the 100,000 cycles simulated electrical life test, the contact performance remains stable, and the working surface burns evenly.
Experiments show that the new process creates silver zinc oxide wire. This wire has good formability. It also has high edge quality when used in rivet processing.
1.
Processability: You do not need special equipment for rivet molding. The material flows well, ensuring a good working surface.
2.
Reliability: The electrical properties of the rivet contacts are stable. The working surface is smooth and has no cracks or defects.
Rivet Profile
Riveting Surface
Market Prospects and Future Development
Fudar Alloy has created a new process to make eco-friendly silver zinc oxide contact material. This technology is simple to use.
The material has excellent electrical properties. You are as good as similar products from other countries. This new contact material has a wide market potential.
Silver zinc oxide is an eco-friendly material. It meets strict environmental rules and performs exceptionally well.
As the production process improves, silver zinc oxide is likely to replace silver cadmium oxide in more areas. Market analysts expect it to become the main choice in the low-voltage electrical market. For more information about the silver zinc oxide material, please feel free to contact us.
