Jiangyin Centersky Electrical Appliance Co., Ltd

  In the production process of silicon steel sheets, a core component of electrical equipment, insulation treatment is a crucial step that determines their performance. Proper insulation treatment can effectively reduce eddy current losses, enhancing the efficiency and stability of electrical equipment. Currently, there are several common insulation treatment methods for silicon steel sheets , as described below. Coating insulation paint is the most widely used traditional method. Organic resin – based insulation paints, such as polyester resin and epoxy resin, are commonly preferred due to their excellent film – forming properties, insulation performance, and adhesion. During production, roll coating, spray coating, and dip coating each have their own advantages. Roll coating is suitable for large – scale continuous production, ensuring a stable and uniform coating thickness; spray coating allows for flexible control of the coating coverage, making it ada...

  The application effect of EI transformer lamination technology will be affected by many factors. The following are some of the main aspects: Material properties – Core material: Silicon steel sheet is a commonly used core material, and its magnetic permeability, resistivity and other properties have a significant impact on the performance of the transformer. Silicon steel sheets with high magnetic permeability can make it easier for the magnetic field to pass through the core, reduce magnetic resistance, and improve electromagnetic conversion efficiency; high resistivity can reduce eddy current loss. Although new materials such as amorphous alloys have lower losses, they also have problems such as high processing difficulty and high cost, which affect their wide application. – Insulating materials: Insulating materials are used to isolate laminations, and their performance affects the insulation performance and heat dissipation effect of the transforme...

  Excellent magnetic performance Efficient magnetic flux conduction: The structural design of the EI type core is conducive to the efficient conduction of magnetic flux. The combination of its “E” and “I” shapes constructs a relatively ideal magnetic circuit, which can guide the magnetic flux to pass through in a concentrated and stable manner and reduce magnetic flux leakage. Taking the power transformer as an example, this structure can concentrate most of the magnetic flux inside the core, reduce leakage loss, and improve the overall efficiency of the transformer, generally increasing the energy conversion efficiency to more than 95%. Good magnetic permeability characteristics: EI type cores often use materials with high magnetic permeability such as silicon steel. In power frequency transformers, EI cores made of silicon steel sheets can generate higher magnetic flux density at lower excitation currents. For example, the common oriented silicon steel sh...