Electromagnetic Properties Low Ironloss, High Induction Mechanical Properties Wide range yield strength,tensile strength, elongation and hardness Coating Advantage Solidified adhesion, High Insulation resistance.

General For household appliance and industry motor Stree Relief For EI transformer and air-conditioner motor High efficiency For high efficiency motor

Product Series

Product main specifications

Product main features

Product Characteristic

Low core loss and high magnetic induction

The energy consumption of the motor includes electrical steel core loss and winding copper loss. If the electrical steel sheet iron loss reduce, and magnetic induction improve, energy consumption reduce, on, and the design for reducing the magnetic emissary motor excitation current improve for reducing the consumption of copper. Therefore, low core loss and high magnetic induction can improve the efficiency and reduce the production cost for the user.

High dimensional accuracy

Giving full play to the new equipment and advanced control system to the advantage, the main product quality and size precision have reached or exceeded the domestic advanced level of enterprises. Those has reduced the number of user slice production process, ensured the motor core lamination of the height difference, improved the production and product efficiency.

Good insulation surface

The variety, process and quality of coating will influence electrical steel’s insulation, punching, welding and oil resistance, thus further influence electrical steel core loss and product properties. The coating has uniformity, high temperature resistance, adhesion and insulation performance.

Electrical Steel: The Silent Enabler of Modern Electrified Mobility

The transition to electric mobility is more than a shift from internal combustion engines to battery packs and power electronics. At the very heart of this transformation lies a foundational material that enables efficiency, power, and performance: electrical steel. This specialized alloy, often overlooked, is a critical component in the three pillars of an electric vehicle's (EV) electrical system: the traction motor, the power transformer, and various filtering reactors. Its unique properties make it indispensable for the future of transportation.

The primary advantage of electrical steel is its ability to efficiently channel and concentrate magnetic flux. This is achieved through a carefully engineered microstructure that minimizes energy loss when the material is subjected to alternating magnetic fields, a constant state of operation in EV components. These energy losses, categorized as hysteresis and eddy current losses, generate heat and reduce overall system efficiency. The core formulation of electrical steel is designed to combat these losses directly, making it a superior choice compared to conventional steels.

Powering the Pulse: The Traction Motor

The most significant application of electrical steel in an EV is within the traction motor. The stator and rotor cores of these high-revving motors are laminated from thousands of thin, insulated sheets of this specialized steel. This lamination process is crucial, as it drastically reduces eddy current losses that would otherwise be excessive in a solid core, leading to overheating and poor performance. The high magnetic permeability of electrical steel allows for the creation of strong magnetic fields with less energy input, directly translating to higher torque and power density. Furthermore, its low core loss, especially at the high frequencies encountered at elevated motor speeds, ensures that more of the battery's energy is converted into motion rather than waste heat. This contributes directly to the vehicle's driving range. The consistent and predictable magnetic properties of this material also play a key role in minimizing torque ripple and acoustic noise, leading to the smooth, quiet operation characteristic of modern EVs.

Managing Energy Flow: Power Transformers

Beyond the motor, electrical steel is fundamental to the onboard power transformers and DC-DC converters. These components are responsible for stepping voltages up or down, for instance, converting the high-voltage battery power to the lower voltages required for auxiliary systems like lighting and infotainment. In these applications, the efficiency of the magnetic core is paramount. Transformers operate continuously, and any inefficiency results in constant energy drain and thermal management challenges. The use of high-quality electrical steel, particularly grain-oriented grades in some designs, ensures that magnetic flux is guided with minimal opposition. This high permeability and low loss characteristic mean that the transformer can operate cooler, be more compact, and contribute to the overall energy efficiency of the vehicle, preserving precious battery capacity for propulsion.

Ensuring Signal Clarity: Filtering Reactors and Chokes

The third critical application lies in filtering reactors, also known as chokes. In the electrically noisy environment of an EV, with its high-speed switching of inverters and converters, reactors are essential for smoothing out current ripples and suppressing electromagnetic interference (EMI). A reactor’s effectiveness hinges on its inductor core, which is often made from specialized electrical steel or other soft magnetic composites. The material must saturate slowly to handle current spikes without losing its inductive properties. By providing a stable and predictable magnetic path, cores made from electrical steel allow these reactors to effectively filter out unwanted harmonics, ensuring clean power delivery to the motor and protecting sensitive electronics from damage. This contributes to the reliability and electromagnetic compatibility of the entire vehicle.

Advantages for a Sustainable Future

The collective advantages of using advanced electrical steel across these systems are clear. It is a material that enables higher efficiency, leading to extended driving range and reduced energy consumption. It allows for greater power density, permitting engineers to design more compact and lighter powertrain systems. This weight reduction creates a virtuous cycle of further efficiency gains. As the industry pushes for even higher motor speeds and more powerful charging systems, the demand for electrical steel grades that perform well at elevated frequencies and temperatures will only grow. Continuous innovation in material science focuses on developing thinner gauges, improved insulating coatings, and optimized alloying elements to push the boundaries of magnetic performance even further.

In conclusion, while it may operate out of sight, electrical steel is a cornerstone technology for electrification. Its superior magnetic properties make it an essential material for building the efficient, powerful, and reliable electric motors, transformers, and reactors that define the modern electric vehicle. As the evolution of EVs continues, the parallel advancement of electrical steel will remain a critical enabler for the next generation of sustainable transportation.