Products Description
In industrial control, automotive electronics, and electrical systems, the reliability of electromagnetic relays directly determines the performance and lifespan of the entire module. And as the core component for the electromagnetic conversion energy of relays, the Relay Rod requires high material purity, magnetic performance, and manufacturing accuracy. The high-performance iron cores we provide are made of high-purity pure iron, combined with advanced cold heading forming and copper plating processes, to offer you a stable, efficient, and low-loss magnetic circuit solution, ensuring precise and error-free attraction and release each time.
Product Core Selling Points
Outstanding Soft Magnetic Properties
Utilizing DT4C high-purity electric pure iron, DT4C Iron Core ensures high magnetic permeability, low coercivity, and low iron loss, serving as the foundation for achieving rapid response and low power consumption.
Top-level Anti-corrosion and Conductive Assurance
The unique copper plating layer (3-5 μm) not only provides excellent rust prevention capabilities but also ensures excellent electrical contact and heat dissipation performance between the coil winding and the core.
High Precision and Consistency
The cold heading process endows Core Pin with extremely high dimensional accuracy, excellent metal flow strength, and outstanding batch consistency, significantly enhancing your assembly efficiency and yield rate.
Designed for Reliability
From materials to the finished Coil Soft Iron Core, the entire process strictly follows the IATF 16949 quality management system, specifically designed to meet the stringent requirements of automotive-grade and high-end industrial control relays.
Materials and Manufacturing Processes Project
| Core Materials | DT4C Iron Core, with the designation DT4C. This is a classic material for soft magnetic cores, renowned for its high saturation magnetic induction, high magnetic permeability, and low hysteresis loss. |
| Material Advantage | High magnetic permeability ensures high sensitivity; low coercivity reduces residual magnetism, facilitating rapid release; high purity ensures stable performance and small batch-to-batch variations. |
| Forming Process | Relay Core Cold Heading. This cold forging process enables the metal to undergo plastic deformation through the mold at room temperature. The material fibers are continuous, resulting in products with high strength, good dimensional accuracy, and a high material utilization rate. It is the best choice for the mass production of straight rod-type coil cores. |
| Surface Treatment | Relay Core Nickel Plating with Copper Undercoat. First, a dense copper base layer is applied, followed by nickel plating. The copper layer ensures conductivity and adhesion, while the nickel layer provides the final appearance and environmental corrosion resistance. The total coating thickness can be customized according to customer requirements (standard 3-5 μm). |
Quality Control & Testing Standards
Strictly control raw material chemical composition and carbon content to ensure superior Soft Magnetic Pure Iron Core baseline performance
Perform magnetic property testing after annealing to guarantee that the DT4C Magnetic Iron Core maintains extremely low residual magnetism
Verify dimensional accuracy through automated optical screening to ensure every Soft Magnetic Core for Latching Relay meets tolerance standards
Conduct 96-hour neutral salt spray (NSS) testing to ensure long-term oxidation resistance
contact us
Do not let supply chain bottlenecks delay your next production run; contact our direct manufacturing facility today to secure custom-engineered DT4C magnetic components and every precision Relay Rod you need, backed by rapid prototyping and guaranteed metallurgical compliance.
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