Oct 22, 2025
Learn how coating impacts nanocrystalline cores in terms of performance, magnetic properties, and production efficiency. Discover how JH Amorphous optimizes coating technology for stability, cost-effectiveness, and innovation.
Nanocrystalline cores are essential in modern magnetic materials used in transformers, inductors, and other electronic devices. While their internal structure defines the magnetic properties, the coating applied to the core also plays a major role in determining performance, durability, and cost efficiency.
For high-quality nanocrystalline cores, coating materials must meet strict performance requirements. During the coating process, the layer should not create excessive stress that can damage the core. Once cured, the coating needs to offer high hardness, dimensional stability, good adhesion, insulation, and solvent resistance. These characteristics help maintain magnetic stability and ensure reliable performance throughout the product’s lifetime.
Because nanocrystalline cores often have ring-shaped structures, flexibility, and no chamfer, the coating process must be carefully selected. A dual-sided spraying method is often used to achieve uniform coverage across all magnetic surfaces, including edges and corners. This approach minimizes coating stress and prevents uneven thickness, which can lead to magnetic distortion or cracking. Proper control of parameters such as spray angle, coating viscosity, and curing temperature ensures both functional and aesthetic quality.
The coating also directly influences magnetic performance. Stress, coating thickness, and uniformity can all affect properties like magnetic permeability, core loss, and coercivity. Even small inconsistencies may cause changes in these parameters, reducing performance and efficiency. By optimizing coating parameters, manufacturers can minimize these effects and maintain stable magnetic characteristics. At JH Amorphous, advanced process control is used to ensure that every coating application supports the core’s intended performance.
Beyond performance, the coating process affects production efficiency and cost. Factors such as equipment speed, coating utilization, and material waste determine overall productivity. By optimizing these elements, JH Amorphous achieves higher throughput, lower waste, and more consistent quality. The result is a more efficient and sustainable manufacturing process that benefits both production and performance goals.
Continuous innovation is key to staying ahead in nanocrystalline technology. JH Amorphous continues to explore new coating materials and automated processes that enhance insulation, adhesion, and durability while maintaining environmental responsibility and cost-effectiveness. Through these efforts, the company delivers reliable and energy-efficient nanocrystalline cores that meet the evolving demands of global industries.
Coating may appear to be a small step in manufacturing, but it has a major impact on how nanocrystalline cores perform in real-world applications. Every layer counts — and with the right materials, processes, and innovation, coating becomes a crucial factor in achieving superior magnetic performance and long-term stability.
Video link: https://www.amorphousoem.com/video/the-impact-of-coating-on-nanocrystalline-cores
About Dongguan JH Amorphous Co., Ltd.
Dongguan JH Amorphous Co., Ltd. is a professional manufacturer specializing in amorphous and nanocrystalline magnetic cores and parts.We serve industries including power electronics, renewable energy, automotive electrification, and industrial automation, offering both standard and custom magnet solutions.
Contact Information:📧 julia@amorphousoem.com🌐 www.amorphousoem.com
Author:Julia YimInternational Marketing ManagerDongguan JH Amorphous Co., Ltd.
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Room 301, Building 2, 58 Liusha South Road, Shijie, Dongguan, Guangdong, China
+86-180 2701 0075
sales@amorphousoem.com
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