Soft Magnetic Lron Cores For Relays
Products Description
Our Soft Magnetic lron Cores for Relays products, including pure iron and soft iron cores, are all manufactured using advanced relay core cold-forging technology. This ensures that each pure iron and soft iron core has precise dimensions and stable magnetic properties.
Our Custom Core Pins are widely used in relays and precision electronic components, meeting stringent industry standards. Our products are sold in numerous markets and are renowned for their reliability. Choosing our cold-forged relay cores ensures superior quality and stable performance.
Product Details
Surface Texture: The surface roughness Ra≤0.8μm is achieved through cold heading and turning processes, resulting in a smooth, flawless feel and reducing wear during coil winding.
Knurling Details: The knurling texture is uniform and consistent in depth, with moderate engagement force with the Core in the Electromagnet frame, ensuring stability without damaging the frame.
End Face Precision: The flatness of the Electromagnet Iron Core end face is ≤0.005mm, resulting in a higher fit with the relay armature, reducing electromagnetic leakage and improving suction power.
Raw Material Advantages
Higher Iron Purity: ≥99.8% iron content, exceeding the industry's common ≥99.5%, laying a solid foundation for stable magnetic performance.
Excellent magnetic properties: Coercivity ≤324A/m (industry ≤504A/m) and magnetic permeability ≥5000 (industry ≤3000), significantly improving electromagnetic conversion efficiency.
Better processing performance: Hardness controlled at 80-100HV (industry 120-150HV), easier to process and form, adapting to precision manufacturing needs.
Refiner structure: Grade 8 grain size (industry Grade 6) ensures uniform material structure, further guaranteeing consistent magnetic performance.
Summary of Manufacturing Process Types
Standard Cylindrical Core
Custom Core Pins are suitable for general-purpose small relays, simple structure, controllable cost, and are currently the most shipped type.
Stepped Core
Designed for high-power relays, the stepped structure enhances the coupling between the coil and the Electromagnet Iron Core, improving electromagnetic attraction.
Core with Boss
Used for relays requiring positioning installation, the boss structure simplifies the assembly process and improves production efficiency.
Custom-made non-standard iron cores
Soft Magnetic lron Cores for Relays are manufactured according to customer drawings to adapt to special function relays (such as automotive relays).
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