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Electrical Steel
Electrical steel is a specially-processed steel that is optimized for use in electrical equipment. It possesses unique magnetic properties and helps to reduce energy loss in various electrical devices. The manufacturing process must be done with precision and care to ensure that the electrical steel possesses the necessary characteristics to function effectively.
Furthermore, it is carefully engineered to have a specific magnetic flux density and coercivity to prevent magnetic hysteresis and any adverse effects that may arise from it. The application of electrical steel is particularly important in various industries that rely heavily on electricity such as electric power generation, automotive engineering, appliance manufacturing, and the production of industrial machinery.
As electrical devices continue to advance in complexity and efficiency, the demand for high-quality and high-performing electrical steel is becoming increasingly important.
Electrical Steel in EV Motors
Electrical steel in EV Motors is an important component in the design and construction of electric vehicle (EV) motors. EV motors require this type of steel due to its magnetic properties that allow for efficient conversion of electrical energy into mechanical energy, which propels the vehicle.
The electrical steel used in EV motors is specially designed with low hysteresis and eddy currents, which helps reduce energy loss and improves energy efficiency, resulting in better mileage and longer driving ranges. In addition to its functionality, electrical steel is also environmentally friendly, as it can be recycled and reused.
Overall, the use of high-quality electrical steel in EV motors is crucial for the development and growth of the electric vehicle industry, which is a vital component of the global effort to reduce emissions and combat climate change.
Electrical Steel Applications
Electrical steel has a wide range of applications due to its unique properties such as high magnetic permeability, low core loss, and high electrical resistivity. Some of the most common applications for electrical steel include electric motors, generators, transformers, and magnetic cores for electrical devices. In automotive industries, electrical steel is used in turbo generators and alternators, as well as in electric power steering systems.
In addition to its use in the electrical and automotive industries, electrical steel is also employed in a variety of other applications, such as in the manufacturing of household appliances like refrigerators, washing machines, and air conditioners. Specialized electrical steel grades are used in the production of magnetic shielding in electrical and electronic equipment, like MRI machines and computer hard drives.
Overall, electrical steel is an essential material with many applications in various industries. Its unique properties make it an ideal choice for products that require exceptional magnetic performance and energy efficiency.
Electrical steel is divided into Grain Oriented and Non-Grain Oriented steel;
Electrical plates, also known as electronic or silicon plates, contain higher silicon content compared to standard steel plates, imparting excellent electric and magnetic properties.
Non-grain-oriented steel exhibits a non-uniform crystal orientation, ideal for products with rotating components like motors and generators. In contrast, grain-oriented steel features a uniform crystal alignment, offering superior magnetic performance suited for stationary applications such as transformers.
With the demand for clean energy solutions escalating to conserve energy and mitigate environmental impact, the demand for electric steel continues to rise.
Grain Oriented Electrical Steel
This steel is engineered with crystals aligned to magnetize parallel to the rolling direction, ensuring exceptional magnetic properties along this axis. It finds extensive application in large and mid-sized transformers, distribution transformers, and reactors.
Specifications - Grades
- JIS: 23R090, 27R095, 30G130
- ASTM: 23Q054, 27Q057, 30H083
- POSCO: 23PHD090, 27PHD095, 30PG130
- EN: M85-23Pb, M090-27Pb, M130-30S
Non-Grain Oriented Electrical Steel
This steel exhibits uniform magnetic properties across all directions, including the rolling direction, making it versatile for various applications—from large-scale power generators to precise small motors and the cores of rotators, both small and large.
Specifications – Grades
- – JIS: 35A210, 50A250, 65A310
- – POSCO: 35PN210, 50PN250, 65PN310, 20PNF1500, 27PNX1350F, 35PNT650Y
- – ASTM: 36F145, 47F165, 64F200
- – EN: M210-35A, M250-50A, M310-65A
- Industries Related:
- EV Traction Motor