Silicon steel magnesium oxide: key properties of coatings and analysis of their application in electrical steel

The key performance of magnesium oxide coating in electrical steel mainly includes the following points

               The key performance of magnesium oxide coating in electrical steel mainly includes the following points:

               Improving magnetic induction intensity:Magnesium oxide coating can react with silicon dioxide on the surface of silicon steel to form a magnesium silicate insulation layer,which helps to improve magnetic induction intensity.

               Enhanced mechanical properties:The use of magnesium oxide can form an oriented film on the surface of silicon steel,thereby enhancing its mechanical properties,which is crucial for maintaining the structural stability and durability of silicon steel.

               Improving heat resistance and welding performance:Magnesium oxide,as a key raw material in inorganic coatings,has good heat resistance and welding performance,which is crucial for ensuring performance stability during processing and use at high temperatures.

               In terms of application in electrical steel,the role of magnesium oxide coating is mainly reflected in the following aspects:

               Prevent adhesion:During the high-temperature annealing stage,magnesium oxide serves as an isolating agent to prevent adhesion between steel strips,ensuring the surface quality and performance of silicon steel.

               Reducing iron loss:Developing low iron loss oriented silicon steel is the industry's pursuit,and the application of magnesium oxide tension coating can achieve this goal,thereby improving the efficiency of transformers and motors.

               Improving coating adhesion:By controlling the composition of the magnesium oxide coating and adding additional materials such as phosphates,the adhesion of the coating can be improved,enhancing the adhesion between the coating and silicon steel.

               In summary,magnesium oxide coatings play a crucial role in electrical steel,not only improving the magnetic and mechanical properties of silicon steel,but also enhancing its stability and processability at high temperatures.These performance improvements are crucial for efficient and high-performance applications in the power electronics industry.At the same time,the development and application of magnesium oxide coatings also respond to the requirements of environmental protection and energy efficiency under the background of"dual carbon",which helps to promote the green and sustainable development of the electrical steel industry.