Products Description
This Grooved Cores for AC Relay is a core magnetic circuit component of an AC electromagnetic system, mainly composed of the following parts:
Slotted silicon steel sheet laminated main magnetic core
Precision-stamped copper parts (used for magnetic short-circuit ring/vibration-damping conductor function)
High-strength riveted fixing structure
Grounded magnetic pole contact surfaces
The slotted structure design optimizes the magnetic flux path, controls leakage magnetic field distribution, and reduces hysteresis and eddy current losses. The copper-stamped parts are riveted to the main iron core to form a stable structure, which functions to form a stable phase-delayed magnetic flux, effectively suppressing vibration and noise during AC electromagnet activation.
The overall structure possesses:
High magnetic circuit continuity
Stable operation
Fast activation response
Material Advantages: Synergy of Electromagnetic Pure Iron and High-Conductivity Copper
The physical properties of materials are key to determining electromagnetic conversion efficiency for Soft Magnetic Iron Cores for Relay.
1. Core Substrate: DT4C Grade Electromagnetic Pure Iron
We select high-purity electrolytic iron that has undergone vacuum annealing. Its extremely high saturation magnetic induction and ultra-low coercivity ensure extremely low energy consumption during frequent starts of the relay, and prevent release delay due to excessive residual magnetism.
2. Core Component: High-Conductivity Oxygen-Free Copper (T2 Copper)
The short-circuit ring is stamped from high-purity copper. Its excellent conductivity ensures the intensity of the induced current, thereby generating a sufficiently strong phase lag magnetic field to eliminate AC humming noise at its source.
Design Advantages: Detailed Optimization for Engineering Applications
Design Advantages: Detailed Optimization for Engineering Applications
The Cold Forging Relay Core's moving surface undergoes ultra-precision grinding, achieving a flatness of ≤0.01mm, ensuring zero air gap in the closed magnetic circuit when in contact with the armature, significantly improving holding force.
Riveting Point Reinforcement
A micro-clamp structure is designed at the bottom of the slot, enabling the copper rings to physically interlock after riveting, preventing physical displacement even under tens of millions of alternating stresses.
Modular Customization
Supports adjusting the slot design for different voltage frequencies (50Hz/60Hz), optimizing magnetic circuit efficiency.
Detailed Display: Quality Witnessed in the Tiny Details
Slot Edge Quality
Under a microscope, the edges of the Pure Iron Core for AC Relay are free of burrs and curls, exhibiting the smoothness characteristic of cut metal. This protects the mating coil frame from cuts, forming the basis for insulation safety.
Rivet Point Morphology
The rivet points at the junction of the copper component and the AC Core Riveted with Copper Terminal are flat and rounded, without any metal cracks. The riveting force is moderate, ensuring both bonding strength and preventing excessive hardening of the silicon steel sheet in certain areas, which could affect magnetic conductivity.
Copper Component Surface
The copper component has a pure color and is free of oxide spots. Its fit with the AC Core for Industrial Relay pole face is extremely high, without gaps, ensuring the low impedance characteristics of the induced current circuit.
Flatness and Parallelism
The iron core pole face is ground, possessing extremely high flatness and parallelism, ensuring uniform air gap when in contact with the armature, maximizing attraction and minimizing hysteresis loss.
contact us
If you are looking for a slotted core solution with stable magnetic properties and long-term reliability for your AC industrial control relay project, our engineering team can provide customized magnetic circuit matching and manufacturing process support for your specific application. Please submit your technical requirements to the inquiry page for further discussion.
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