Electrical steel plate is a general term for electrical steel such as silicon steel, pure iron, and permalloy. It is an important soft magnetic alloy that is indispensable in the power, electronics and military industries. It is also the metal functional material with the largest production volume. Mainly used as iron cores for various motors, generators and transformers. Electrical steel plates are made by adding silicon to low-carbon pure iron, which not only increases the hardness and resistance, but also maintains good soft magnetic properties. Iron core electrical steel B-FM is a standard alloy in the electrical steel series and is a free-cutting electrical steel. There are many types of electrical steel plates with different properties. The common classification method is to divide them into two categories according to technology: cold-rolled electrical steel plates and hot-rolled electrical steel plates. Cold-rolled electrical steel plates are further divided into oriented electrical steel plates and non-oriented electrical steel plates. Non-oriented electrical steel plates are further divided into cold-rolled oriented low-carbon low-silicon electrical steel plates and cold-rolled, non-oriented electrical steel plates.

What are the classifications of electrical steel plates?

  1. Cold-rolled non-oriented low-carbon low-silicon electrical steel plate refers to Si<1% (Si+AI)<1% electrical steel. The calibrated thickness is 0.5mm and 0.6mm and above. It is characterized by simple process and low manufacturing cost. This kind of steel has low silicon content, high magnetic induction intensity, and high iron loss. It is mainly used to produce household motors and micromotors (also called fractional horsepower motors), small motors, ballasts, and small transformers below 1 kilowatt. Cold-rolled non-oriented electrical steel plate is a ferrosilicon soft magnetic alloy with a very low carbon mass fraction. It is an essential magnetic material for the development of electric power, telecommunications and military industries. Cold-rolled non-oriented silicon steel plate has high silicon and aluminum quality, low iron loss and low magnetic induction intensity. Medium and low-grade cold-rolled non-oriented electrical steel plates can be used to manufacture small and medium-sized industrial motors, household appliances, compressors, transformers, current stabilizers and other electrical equipment.

Grain-oriented electrical steel sheet refers to a type of cold-rolled electrical steel with a silicon content of 2.9% to 3.3%, and after special processing, most of the grain orientations are consistent, resulting in extremely superior magnetic properties. This type of steel is divided into ordinary oriented electrical steel plates and high magnetic induction oriented electrical steel plates, and is mainly used to manufacture large transformers.

  1. The silicon content of hot-rolled electrical steel plates can be divided into two categories: hot-rolled low-silicon steel (1.0%~2.5%) and hot-rolled high-silicon steel plates (3.0%~4.5%). The former is used for motor manufacturing, with a nominal thickness of 0.5mm, and the latter is used For transformer manufacturing, the calibrated thicknesses are 0.35mm and 0.50mm. Due to the low magnetism and large fluctuations of hot-rolled electrical steel, the thickness of the steel plate is uneven, the surface is easily oxidized and not smooth, the punching performance is poor, and the thickness is not smooth.

It can be supplied in rolls, has many production processes and a long cycle, and is now being gradually eliminated in our country. Electrical steel plates usually rely on core loss and magnetic induction intensity as the guarantee of product magnetism. Its performance requirements include: low core loss, high magnetic induction intensity, smooth and uniform steel plate surface, good insulation film performance, and small magnetic aging phenomenon. Compared with hot-rolled electrical steel plates, cold-rolled steel plates have certain advantages. It is understood that the phenomenon of magnetism changing with time of use is called magnetic aging. This phenomenon mainly

It is caused by impurity elements such as carbon and nitrogen in steel. Electrical steel has high solid solubility of carbon and nitrogen at high temperatures. When cooled quickly from high temperature, carbon and nitrogen have no time to precipitate to form a supersaturated solid solution. When the iron core operates for a long time, especially when the temperature rises to 50C ~ 80C, excess carbon and nitrogen precipitate as finely dispersed tungsten carbide and Fe16N4 particles, which increases the coercive force and core loss, leading to magnetic aging.

What are the differences between cold-rolled electrical steel plates and hot-rolled electrical steel plates?

  1. High magnetism, can save a lot of electricity;
  2. Glatte Oberfläche und hoher Laminierungskoeffizient;
  3. Good film processing properties;
  4. The surface is coated with insulating film for ease of use;
  5. Supplied in rolls, suitable for high-speed punching machines and with high utilization rate.

What are the advantages of electrical steel plates?

Electrical steel plate is a type of specialty steel commonly used in the manufacture of electrical equipment. This steel differs from other types of steel in several ways, which makes it ideal for use in electrical applications.

Some of the main advantages of electrical steel plates include:

  1. Improved strength and durability: Electrical steel plates are stronger and more durable than other types of steel. This makes it ideal for use in electrical equipment that is often subject to high stress and wear.
  2. Improve electrical conductivity: The high purity of electrical steel plates makes them excellent electrical conductors. This makes it ideally suited for a wide range of electrical applications, including components for generators, motors and transformers.
  3. Enhanced corrosion resistance: The unique composition of electrical steel plates also enhances their corrosion resistance. This means it can be used safely in environments where other types of steel would corrode or break down quickly.
  4. Reduce manufacturing costs: The improvement in the performance of electrical steel plates also leads to a reduction in manufacturing costs. This is because this steel can be easily made into the desired shape and size through a simple manufacturing process.
  5. Wide range of uses: Electrical steel plates are widely used and are one of the most widely used types of steel on the market today.

What are the applications of electrical steel plates?

Electrical steel plate is a type of specialty steel commonly used in the manufacture of electrical equipment. This steel differs from other types of steel in several ways, which makes it ideal for use in electrical applications.

Electrical steel plate is a versatile material with a variety of properties suitable for many different applications. It has excellent magnetic properties and good formability, making it ideal for the production of transformers and electric motors. Its strength and durability make it ideal for use in power transmission lines, while its ductility makes it suitable for use in consumer electronics such as speakers. Ultimately, electrical steel panels are an excellent choice for improving energy efficiency or reducing costs without sacrificing quality.