Products Description
In the electromagnetic structure of a relay, the iron core undertakes the core function of magnetic flux convergence and conduction. Its material performance, machining precision, and consistency directly affect the attraction force, response speed, and long-term operational stability of the relay. Especially in new energy vehicles, industrial control,l and high-reliability electrical systems, the iron core is no longer a simple structural component, but a key part that determines the upper limit of the overall machine performance.
We provide Iron Core Relay Part, which is specially designed for stable magnetic performance and large-scale assembly. It is suitable for various types of electromagnetic relays and electronic control systems, providing reliable magnetic circuit core solutions for B2B customers worldwide.
Core Product Advantages
Magnetic Circuit Efficiency with Low Loss and High Magnetic Permeability
The magnetic permeability of the matrix made of high-purity DT4C pure iron or silicon steel is more than 1.4 times that of ordinary low-carbon steel, which can generate a stronger magnetic induction intensity under the same current excitation and significantly improve the closing and opening speed of the relay. The extremely low hysteresis loss of the Coil Soft Iron Core reduces the energy loss during the magnetic energy conversion process, lowers the equipment energy consumption, and meets the core requirements of industrial automation and new energy vehicles for high-efficiency response.
Structural Stability with Closed Magnetic Circuit and High Rigidity
The E-type/U-type structural design forms a closed magnetic flux path, maximizing the magnetic flux density and reducing magnetic leakage and energy loss. After the internal stress is eliminated by high-temperature annealing, the impact resistance of the iron core is significantly enhanced, which can withstand the impact force during high-frequency operation, prevent deformation or displacement, and ensure the rigidity and long-term stability of the magnetic circuit. After the 1000N impact load test, the Straight Coil Core has no deformation, and the magnetic performance attenuation is ≤3%.
Scenario-based Protection and Weather Resistance Guarantee
Surface protection processes such as galvanizing or stainless steel cladding are provided to effectively resist corrosion in complex environments such as humidity and salt spray. Especially in automotive-grade or marine environments, anti-rust treatment can extend the service life of the Cold Heading Pure Iron Core by more than twice. The high-purity material has excellent high-temperature resistance and can maintain stable magnetic performance in a high-temperature environment of 150℃, adapting to the needs of harsh working conditions.
Flexible Design for Multi-specification Adaptation
The Relay Core supports thickness specifications with a tolerance of ≤±1mm, which can be accurately adapted to relays from miniature to large sizes. A variety of structural options, such as E-type and U-type, are available, and special-shaped magnetic circuits can be customized according to customer needs to meet the personalized requirements of different power levels and frequency characteristics.
Customization and Services
Structural and Specification Customization
Relay Coil Cores support full structural customization including traditional E-type designs, and can be precisely processed according to the magnetic circuit drawings provided by customers. The thickness covers the full range from 0.2mm to 1mm, adapting to various size requirements from miniature signal relays to large power relays.
Material and Performance Customization
For Electromagnet Cores, DT4C pure iron with different purities can be selected according to power grades and frequency characteristics, and high silicon steel sheets can also be adopted for high-frequency scenarios. For special working conditions, customized annealing processes are available to further optimize magnetic permeability or residual magnetism indicators, meeting personalized performance requirements.
Surface Protection Customization
DT4C Iron Cores offer a variety of protection solutions such as galvanizing, stainless steel cladding and electrophoretic coating. Stainless steel cladding supports material options including 304/316, accurately meeting the protection requirements of different corrosive environments such as industrial, automotive and marine applications.
Global Delivery and Quality Assurance
Products are certified by international quality management systems including IATF16949 (automotive industry), ISO9001-2015 and DIN EN 10304, and comply with RoHS and REACH environmental protection requirements. Free samples of DT4C Relay Iron core Cold forgings can be delivered in 1-2 days; newly molded samples (including mold development and sample production) take 20-30 days; mass production orders have a lead time of 15-20 days (after order confirmation and payment).
Details and Quality
Consistency of Magnetic Properties
Random sampling of Coil Soft Iron Cores from each batch is conducted for magnetic performance testing. The initial permeability is ≥3.5mH/m, maximum permeability ≥15mH/m, and hysteresis loss ≤1.2W/kg (under 1.5T, 50Hz working conditions). The magnetic property deviation of products within the same batch is ≤5%, ensuring the consistent operation of relays.
Dimensional Accuracy & Structural Stability
The coaxiality deviation of E-type/U-type iron cores is ≤±0.03mm, and the surface roughness Ra ≤1.6μm, which ensures the precise alignment of closed magnetic circuits and reduces magnetic leakage. After the 1000N impact load test, Straight Coil Cores show no deformation, and the magnetic performance attenuation is ≤3%, making them suitable for high-frequency impact scenarios.
Reliable Residual Magnetism Control
Iron Core Relay Parts undergo a high-temperature annealing process, with the residual magnetism value stably controlled at ≤0.5mT. This ensures the complete reset of the magnetic circuit after the relay is powered off and avoids the impact of residual magnetism on the accuracy of the next operation. This indicator meets the reliability requirements of industrial and automotive-grade relays.
Long-term Weather Resistance & Protection
The adhesion grade of the galvanized protective layer is ≥4B, and no corrosion occurs after the 48-hour salt spray test in accordance with GB/T 10125. The stainless steel cladding layer is made of 304 material complying with ASTM A240 standard, suitable for highly corrosive environments such as marine areas, effectively extending the service life of Relay Cores.
Contact Us
If you have any requirements concerning the procurement, selection, sample request, or customization of Iron Core Relay Part, or if you wish to obtain further information regarding product details, please do not hesitate to contact us. We will deploy a professional team to provide personalized one-on-one service, develop customized adaptation solutions, and guarantee stable supply, precise selection, and efficient procurement processes.
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